| Index: pkg/analyzer-experimental/lib/src/generated/parser.dart
|
| ===================================================================
|
| --- pkg/analyzer-experimental/lib/src/generated/parser.dart (revision 0)
|
| +++ pkg/analyzer-experimental/lib/src/generated/parser.dart (revision 0)
|
| @@ -0,0 +1,5649 @@
|
| +// This code was auto-generated, is not intended to be edited, and is subject to
|
| +// significant change. Please see the README file for more information.
|
| +
|
| +library engine.parser;
|
| +
|
| +import 'dart:collection';
|
| +import 'java_core.dart';
|
| +import 'java_engine.dart';
|
| +import 'error.dart';
|
| +import 'source.dart';
|
| +import 'scanner.dart';
|
| +import 'ast.dart';
|
| +import 'package:analyzer-experimental/src/generated/utilities_dart.dart';
|
| +
|
| +/**
|
| + * Instances of the class {@code CommentAndMetadata} implement a simple data-holder for a method
|
| + * that needs to return multiple values.
|
| + */
|
| +class CommentAndMetadata {
|
| + /**
|
| + * The documentation comment that was parsed, or {@code null} if none was given.
|
| + */
|
| + Comment _comment;
|
| + /**
|
| + * The metadata that was parsed.
|
| + */
|
| + List<Annotation> _metadata;
|
| + /**
|
| + * Initialize a newly created holder with the given data.
|
| + * @param comment the documentation comment that was parsed
|
| + * @param metadata the metadata that was parsed
|
| + */
|
| + CommentAndMetadata(Comment comment, List<Annotation> metadata) {
|
| + this._comment = comment;
|
| + this._metadata = metadata;
|
| + }
|
| + /**
|
| + * Return the documentation comment that was parsed, or {@code null} if none was given.
|
| + * @return the documentation comment that was parsed
|
| + */
|
| + Comment get comment => _comment;
|
| + /**
|
| + * Return the metadata that was parsed. If there was no metadata, then the list will be empty.
|
| + * @return the metadata that was parsed
|
| + */
|
| + List<Annotation> get metadata => _metadata;
|
| +}
|
| +/**
|
| + * Instances of the class {@code FinalConstVarOrType} implement a simple data-holder for a method
|
| + * that needs to return multiple values.
|
| + */
|
| +class FinalConstVarOrType {
|
| + /**
|
| + * The 'final', 'const' or 'var' keyword, or {@code null} if none was given.
|
| + */
|
| + Token _keyword;
|
| + /**
|
| + * The type, of {@code null} if no type was specified.
|
| + */
|
| + TypeName _type;
|
| + /**
|
| + * Initialize a newly created holder with the given data.
|
| + * @param keyword the 'final', 'const' or 'var' keyword
|
| + * @param type the type
|
| + */
|
| + FinalConstVarOrType(Token keyword, TypeName type) {
|
| + this._keyword = keyword;
|
| + this._type = type;
|
| + }
|
| + /**
|
| + * Return the 'final', 'const' or 'var' keyword, or {@code null} if none was given.
|
| + * @return the 'final', 'const' or 'var' keyword
|
| + */
|
| + Token get keyword => _keyword;
|
| + /**
|
| + * Return the type, of {@code null} if no type was specified.
|
| + * @return the type
|
| + */
|
| + TypeName get type => _type;
|
| +}
|
| +/**
|
| + * Instances of the class {@code Modifiers} implement a simple data-holder for a method that needs
|
| + * to return multiple values.
|
| + */
|
| +class Modifiers {
|
| + /**
|
| + * The token representing the keyword 'abstract', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _abstractKeyword;
|
| + /**
|
| + * The token representing the keyword 'const', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _constKeyword;
|
| + /**
|
| + * The token representing the keyword 'external', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _externalKeyword;
|
| + /**
|
| + * The token representing the keyword 'factory', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _factoryKeyword;
|
| + /**
|
| + * The token representing the keyword 'final', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _finalKeyword;
|
| + /**
|
| + * The token representing the keyword 'static', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _staticKeyword;
|
| + /**
|
| + * The token representing the keyword 'var', or {@code null} if the keyword was not found.
|
| + */
|
| + Token _varKeyword;
|
| + /**
|
| + * Initialize a newly created and empty set of modifiers.
|
| + */
|
| + Modifiers() : super() {
|
| + }
|
| + /**
|
| + * Return the token representing the keyword 'abstract', or {@code null} if the keyword was not
|
| + * found.
|
| + * @return the token representing the keyword 'abstract'
|
| + */
|
| + Token get abstractKeyword => _abstractKeyword;
|
| + /**
|
| + * Return the token representing the keyword 'const', or {@code null} if the keyword was not
|
| + * found.
|
| + * @return the token representing the keyword 'const'
|
| + */
|
| + Token get constKeyword => _constKeyword;
|
| + /**
|
| + * Return the token representing the keyword 'external', or {@code null} if the keyword was not
|
| + * found.
|
| + * @return the token representing the keyword 'external'
|
| + */
|
| + Token get externalKeyword => _externalKeyword;
|
| + /**
|
| + * Return the token representing the keyword 'factory', or {@code null} if the keyword was not
|
| + * found.
|
| + * @return the token representing the keyword 'factory'
|
| + */
|
| + Token get factoryKeyword => _factoryKeyword;
|
| + /**
|
| + * Return the token representing the keyword 'final', or {@code null} if the keyword was not
|
| + * found.
|
| + * @return the token representing the keyword 'final'
|
| + */
|
| + Token get finalKeyword => _finalKeyword;
|
| + /**
|
| + * Return the token representing the keyword 'static', or {@code null} if the keyword was not
|
| + * found.
|
| + * @return the token representing the keyword 'static'
|
| + */
|
| + Token get staticKeyword => _staticKeyword;
|
| + /**
|
| + * Return the token representing the keyword 'var', or {@code null} if the keyword was not found.
|
| + * @return the token representing the keyword 'var'
|
| + */
|
| + Token get varKeyword => _varKeyword;
|
| + /**
|
| + * Set the token representing the keyword 'abstract' to the given token.
|
| + * @param abstractKeyword the token representing the keyword 'abstract'
|
| + */
|
| + void set abstractKeyword4(Token abstractKeyword) {
|
| + this._abstractKeyword = abstractKeyword;
|
| + }
|
| + /**
|
| + * Set the token representing the keyword 'const' to the given token.
|
| + * @param constKeyword the token representing the keyword 'const'
|
| + */
|
| + void set constKeyword3(Token constKeyword) {
|
| + this._constKeyword = constKeyword;
|
| + }
|
| + /**
|
| + * Set the token representing the keyword 'external' to the given token.
|
| + * @param externalKeyword the token representing the keyword 'external'
|
| + */
|
| + void set externalKeyword5(Token externalKeyword) {
|
| + this._externalKeyword = externalKeyword;
|
| + }
|
| + /**
|
| + * Set the token representing the keyword 'factory' to the given token.
|
| + * @param factoryKeyword the token representing the keyword 'factory'
|
| + */
|
| + void set factoryKeyword3(Token factoryKeyword) {
|
| + this._factoryKeyword = factoryKeyword;
|
| + }
|
| + /**
|
| + * Set the token representing the keyword 'final' to the given token.
|
| + * @param finalKeyword the token representing the keyword 'final'
|
| + */
|
| + void set finalKeyword2(Token finalKeyword) {
|
| + this._finalKeyword = finalKeyword;
|
| + }
|
| + /**
|
| + * Set the token representing the keyword 'static' to the given token.
|
| + * @param staticKeyword the token representing the keyword 'static'
|
| + */
|
| + void set staticKeyword2(Token staticKeyword) {
|
| + this._staticKeyword = staticKeyword;
|
| + }
|
| + /**
|
| + * Set the token representing the keyword 'var' to the given token.
|
| + * @param varKeyword the token representing the keyword 'var'
|
| + */
|
| + void set varKeyword2(Token varKeyword) {
|
| + this._varKeyword = varKeyword;
|
| + }
|
| + String toString() {
|
| + StringBuffer builder = new StringBuffer();
|
| + bool needsSpace = appendKeyword(builder, false, _abstractKeyword);
|
| + needsSpace = appendKeyword(builder, needsSpace, _constKeyword);
|
| + needsSpace = appendKeyword(builder, needsSpace, _externalKeyword);
|
| + needsSpace = appendKeyword(builder, needsSpace, _factoryKeyword);
|
| + needsSpace = appendKeyword(builder, needsSpace, _finalKeyword);
|
| + needsSpace = appendKeyword(builder, needsSpace, _staticKeyword);
|
| + appendKeyword(builder, needsSpace, _varKeyword);
|
| + return builder.toString();
|
| + }
|
| + /**
|
| + * If the given keyword is not {@code null}, append it to the given builder, prefixing it with a
|
| + * space if needed.
|
| + * @param builder the builder to which the keyword will be appended
|
| + * @param needsSpace {@code true} if the keyword needs to be prefixed with a space
|
| + * @param keyword the keyword to be appended
|
| + * @return {@code true} if subsequent keywords need to be prefixed with a space
|
| + */
|
| + bool appendKeyword(StringBuffer builder, bool needsSpace, Token keyword) {
|
| + if (keyword != null) {
|
| + if (needsSpace) {
|
| + builder.addCharCode(0x20);
|
| + }
|
| + builder.add(keyword.lexeme);
|
| + return true;
|
| + }
|
| + return needsSpace;
|
| + }
|
| +}
|
| +/**
|
| + * Instances of the class {@code Parser} are used to parse tokens into an AST structure.
|
| + */
|
| +class Parser {
|
| + /**
|
| + * The source being parsed.
|
| + */
|
| + Source _source;
|
| + /**
|
| + * The error listener that will be informed of any errors that are found during the parse.
|
| + */
|
| + AnalysisErrorListener _errorListener;
|
| + /**
|
| + * The next token to be parsed.
|
| + */
|
| + Token _currentToken;
|
| + /**
|
| + * A flag indicating whether the parser is currently in the body of a loop.
|
| + */
|
| + bool _inLoop = false;
|
| + /**
|
| + * A flag indicating whether the parser is currently in a switch statement.
|
| + */
|
| + bool _inSwitch = false;
|
| + static String _HIDE = "hide";
|
| + static String _OF = "of";
|
| + static String _ON = "on";
|
| + static String _SHOW = "show";
|
| + /**
|
| + * Initialize a newly created parser.
|
| + * @param source the source being parsed
|
| + * @param errorListener the error listener that will be informed of any errors that are found
|
| + * during the parse
|
| + */
|
| + Parser(Source source, AnalysisErrorListener errorListener) {
|
| + this._source = source;
|
| + this._errorListener = errorListener;
|
| + }
|
| + /**
|
| + * Parse a compilation unit, starting with the given token.
|
| + * @param token the first token of the compilation unit
|
| + * @return the compilation unit that was parsed
|
| + */
|
| + CompilationUnit parseCompilationUnit(Token token) {
|
| + _currentToken = token;
|
| + return parseCompilationUnit2();
|
| + }
|
| + /**
|
| + * Parse an expression, starting with the given token.
|
| + * @param token the first token of the expression
|
| + * @return the expression that was parsed, or {@code null} if the tokens do not represent a
|
| + * recognizable expression
|
| + */
|
| + Expression parseExpression(Token token) {
|
| + _currentToken = token;
|
| + return parseExpression2();
|
| + }
|
| + /**
|
| + * Parse a statement, starting with the given token.
|
| + * @param token the first token of the statement
|
| + * @return the statement that was parsed, or {@code null} if the tokens do not represent a
|
| + * recognizable statement
|
| + */
|
| + Statement parseStatement(Token token) {
|
| + _currentToken = token;
|
| + return parseStatement2();
|
| + }
|
| + /**
|
| + * Parse a sequence of statements, starting with the given token.
|
| + * @param token the first token of the sequence of statement
|
| + * @return the statements that were parsed, or {@code null} if the tokens do not represent a
|
| + * recognizable sequence of statements
|
| + */
|
| + List<Statement> parseStatements(Token token) {
|
| + _currentToken = token;
|
| + return parseStatements2();
|
| + }
|
| + void set currentToken(Token currentToken) {
|
| + this._currentToken = currentToken;
|
| + }
|
| + /**
|
| + * Advance to the next token in the token stream.
|
| + */
|
| + void advance() {
|
| + _currentToken = _currentToken.next;
|
| + }
|
| + /**
|
| + * Append the character equivalent of the given scalar value to the given builder. Use the start
|
| + * and end indices to report an error, and don't append anything to the builder, if the scalar
|
| + * value is invalid.
|
| + * @param builder the builder to which the scalar value is to be appended
|
| + * @param escapeSequence the escape sequence that was parsed to produce the scalar value
|
| + * @param scalarValue the value to be appended
|
| + * @param startIndex the index of the first character representing the scalar value
|
| + * @param endIndex the index of the last character representing the scalar value
|
| + */
|
| + void appendScalarValue(StringBuffer builder, String escapeSequence, int scalarValue, int startIndex, int endIndex) {
|
| + if (scalarValue < 0 || scalarValue > Character.MAX_CODE_POINT || (scalarValue >= 0xD800 && scalarValue <= 0xDFFF)) {
|
| + reportError3(ParserErrorCode.INVALID_CODE_POINT, [escapeSequence]);
|
| + return;
|
| + }
|
| + if (scalarValue < Character.MAX_VALUE) {
|
| + builder.addCharCode(scalarValue as int);
|
| + } else {
|
| + builder.add(Character.toChars(scalarValue));
|
| + }
|
| + }
|
| + /**
|
| + * Compute the content of a string with the given literal representation.
|
| + * @param lexeme the literal representation of the string
|
| + * @return the actual value of the string
|
| + */
|
| + String computeStringValue(String lexeme) {
|
| + if (lexeme.startsWith("r\"\"\"") || lexeme.startsWith("r'''")) {
|
| + if (lexeme.length > 4) {
|
| + return lexeme.substring(4, lexeme.length - 3);
|
| + }
|
| + } else if (lexeme.startsWith("r\"") || lexeme.startsWith("r'")) {
|
| + if (lexeme.length > 2) {
|
| + return lexeme.substring(2, lexeme.length - 1);
|
| + }
|
| + }
|
| + int start = 0;
|
| + if (lexeme.startsWith("\"\"\"") || lexeme.startsWith("'''")) {
|
| + start += 3;
|
| + } else if (lexeme.startsWith("\"") || lexeme.startsWith("'")) {
|
| + start += 1;
|
| + }
|
| + int end = lexeme.length;
|
| + if (end > 3 && (lexeme.endsWith("\"\"\"") || lexeme.endsWith("'''"))) {
|
| + end -= 3;
|
| + } else if (end > 1 && (lexeme.endsWith("\"") || lexeme.endsWith("'"))) {
|
| + end -= 1;
|
| + }
|
| + StringBuffer builder = new StringBuffer();
|
| + int index = start;
|
| + while (index < end) {
|
| + index = translateCharacter(builder, lexeme, index);
|
| + }
|
| + return builder.toString();
|
| + }
|
| + /**
|
| + * Create a synthetic identifier.
|
| + * @return the synthetic identifier that was created
|
| + */
|
| + SimpleIdentifier createSyntheticIdentifier() => new SimpleIdentifier(createSyntheticToken(TokenType.IDENTIFIER));
|
| + /**
|
| + * Create a synthetic string literal.
|
| + * @return the synthetic string literal that was created
|
| + */
|
| + SimpleStringLiteral createSyntheticStringLiteral() => new SimpleStringLiteral(createSyntheticToken(TokenType.STRING), "");
|
| + /**
|
| + * Create a synthetic token with the given type.
|
| + * @return the synthetic token that was created
|
| + */
|
| + Token createSyntheticToken(TokenType type) => new StringToken(type, "", _currentToken.offset);
|
| + /**
|
| + * Check that the given expression is assignable and report an error if it isn't.
|
| + * <pre>
|
| + * assignableExpression ::=
|
| + * primary (arguments* assignableSelector)+
|
| + * | 'super' assignableSelector
|
| + * | identifier
|
| + * assignableSelector ::=
|
| + * '[' expression ']'
|
| + * | '.' identifier
|
| + * </pre>
|
| + * @param expression the expression being checked
|
| + */
|
| + void ensureAssignable(Expression expression) {
|
| + if (expression != null && !expression.isAssignable()) {
|
| + reportError3(ParserErrorCode.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE, []);
|
| + }
|
| + }
|
| + /**
|
| + * If the current token is a keyword matching the given string, return it after advancing to the
|
| + * next token. Otherwise report an error and return the current token without advancing.
|
| + * @param keyword the keyword that is expected
|
| + * @return the token that matched the given type
|
| + */
|
| + Token expect(Keyword keyword) {
|
| + if (matches(keyword)) {
|
| + return andAdvance;
|
| + }
|
| + reportError3(ParserErrorCode.EXPECTED_TOKEN, [keyword.syntax]);
|
| + return _currentToken;
|
| + }
|
| + /**
|
| + * If the current token has the expected type, return it after advancing to the next token.
|
| + * Otherwise report an error and return the current token without advancing.
|
| + * @param type the type of token that is expected
|
| + * @return the token that matched the given type
|
| + */
|
| + Token expect2(TokenType type) {
|
| + if (matches5(type)) {
|
| + return andAdvance;
|
| + }
|
| + if (type == TokenType.SEMICOLON) {
|
| + reportError4(ParserErrorCode.EXPECTED_TOKEN, _currentToken.previous, [type.lexeme]);
|
| + } else {
|
| + reportError3(ParserErrorCode.EXPECTED_TOKEN, [type.lexeme]);
|
| + }
|
| + return _currentToken;
|
| + }
|
| + /**
|
| + * Advance to the next token in the token stream, making it the new current token.
|
| + * @return the token that was current before this method was invoked
|
| + */
|
| + Token get andAdvance {
|
| + Token token = _currentToken;
|
| + advance();
|
| + return token;
|
| + }
|
| + /**
|
| + * Return {@code true} if the current token is the first token of a return type that is followed
|
| + * by an identifier, possibly followed by a list of type parameters, followed by a
|
| + * left-parenthesis. This is used by parseTypeAlias to determine whether or not to parse a return
|
| + * type.
|
| + * @return {@code true} if we can successfully parse the rest of a type alias if we first parse a
|
| + * return type.
|
| + */
|
| + bool hasReturnTypeInTypeAlias() {
|
| + Token next = skipReturnType(_currentToken);
|
| + if (next == null) {
|
| + return false;
|
| + }
|
| + return matchesIdentifier2(next);
|
| + }
|
| + /**
|
| + * Return {@code true} if the current token appears to be the beginning of a function declaration.
|
| + * @return {@code true} if the current token appears to be the beginning of a function declaration
|
| + */
|
| + bool isFunctionDeclaration() {
|
| + if (matches(Keyword.VOID)) {
|
| + return true;
|
| + }
|
| + Token afterReturnType = skipTypeName(_currentToken);
|
| + if (afterReturnType == null) {
|
| + afterReturnType = _currentToken;
|
| + }
|
| + Token afterIdentifier = skipSimpleIdentifier(afterReturnType);
|
| + if (afterIdentifier == null) {
|
| + afterIdentifier = skipSimpleIdentifier(_currentToken);
|
| + }
|
| + if (afterIdentifier == null) {
|
| + return false;
|
| + }
|
| + return isFunctionExpression(afterIdentifier);
|
| + }
|
| + /**
|
| + * Return {@code true} if the given token appears to be the beginning of a function expression.
|
| + * @param startToken the token that might be the start of a function expression
|
| + * @return {@code true} if the given token appears to be the beginning of a function expression
|
| + */
|
| + bool isFunctionExpression(Token startToken) {
|
| + Token afterParameters = skipFormalParameterList(startToken);
|
| + if (afterParameters == null) {
|
| + return false;
|
| + }
|
| + return matchesAny(afterParameters, [TokenType.OPEN_CURLY_BRACKET, TokenType.FUNCTION]);
|
| + }
|
| + /**
|
| + * Return {@code true} if the given character is a valid hexadecimal digit.
|
| + * @param character the character being tested
|
| + * @return {@code true} if the character is a valid hexadecimal digit
|
| + */
|
| + bool isHexDigit(int character) => (0x30 <= character && character <= 0x39) || (0x41 <= character && character <= 0x46) || (0x61 <= character && character <= 0x66);
|
| + /**
|
| + * Return {@code true} if the current token is the first token in an initialized variable
|
| + * declaration rather than an expression. This method assumes that we have already skipped past
|
| + * any metadata that might be associated with the declaration.
|
| + * <pre>
|
| + * initializedVariableDeclaration ::=
|
| + * declaredIdentifier ('=' expression)? (',' initializedIdentifier)
|
| + * declaredIdentifier ::=
|
| + * metadata finalConstVarOrType identifier
|
| + * finalConstVarOrType ::=
|
| + * 'final' type?
|
| + * | 'const' type?
|
| + * | 'var'
|
| + * | type
|
| + * type ::=
|
| + * qualified typeArguments?
|
| + * initializedIdentifier ::=
|
| + * identifier ('=' expression)?
|
| + * </pre>
|
| + * @return {@code true} if the current token is the first token in an initialized variable
|
| + * declaration
|
| + */
|
| + bool isInitializedVariableDeclaration() {
|
| + if (matches(Keyword.FINAL) || matches(Keyword.CONST) || matches(Keyword.VAR)) {
|
| + return true;
|
| + }
|
| + Token token = skipTypeName(_currentToken);
|
| + if (token == null) {
|
| + return false;
|
| + }
|
| + token = skipSimpleIdentifier(token);
|
| + if (token == null) {
|
| + return false;
|
| + }
|
| + TokenType type17 = token.type;
|
| + return type17 == TokenType.EQ || type17 == TokenType.COMMA || type17 == TokenType.SEMICOLON || matches3(token, Keyword.IN);
|
| + }
|
| + /**
|
| + * Return {@code true} if the current token appears to be the beginning of a switch member.
|
| + * @return {@code true} if the current token appears to be the beginning of a switch member
|
| + */
|
| + bool isSwitchMember() {
|
| + Token token = _currentToken;
|
| + while (matches4(token, TokenType.IDENTIFIER) && matches4(token.next, TokenType.COLON)) {
|
| + token = token.next.next;
|
| + }
|
| + if (token.type == TokenType.KEYWORD) {
|
| + Keyword keyword28 = (token as KeywordToken).keyword;
|
| + return keyword28 == Keyword.CASE || keyword28 == Keyword.DEFAULT;
|
| + }
|
| + return false;
|
| + }
|
| + /**
|
| + * Compare the given tokens to find the token that appears first in the source being parsed. That
|
| + * is, return the left-most of all of the tokens. The arguments are allowed to be {@code null}.
|
| + * Return the token with the smallest offset, or {@code null} if there are no arguments or if all
|
| + * of the arguments are {@code null}.
|
| + * @param tokens the tokens being compared
|
| + * @return the token with the smallest offset
|
| + */
|
| + Token lexicallyFirst(List<Token> tokens) {
|
| + Token first = null;
|
| + int firstOffset = 2147483647;
|
| + for (Token token in tokens) {
|
| + if (token != null) {
|
| + int offset3 = token.offset;
|
| + if (offset3 < firstOffset) {
|
| + first = token;
|
| + }
|
| + }
|
| + }
|
| + return first;
|
| + }
|
| + /**
|
| + * Return {@code true} if the current token matches the given keyword.
|
| + * @param keyword the keyword that can optionally appear in the current location
|
| + * @return {@code true} if the current token matches the given keyword
|
| + */
|
| + bool matches(Keyword keyword) => matches3(_currentToken, keyword);
|
| + /**
|
| + * Return {@code true} if the current token matches the given identifier.
|
| + * @param identifier the identifier that can optionally appear in the current location
|
| + * @return {@code true} if the current token matches the given identifier
|
| + */
|
| + bool matches2(String identifier) => _currentToken.type == TokenType.IDENTIFIER && _currentToken.lexeme == identifier;
|
| + /**
|
| + * Return {@code true} if the given token matches the given keyword.
|
| + * @param token the token being tested
|
| + * @param keyword the keyword that is being tested for
|
| + * @return {@code true} if the given token matches the given keyword
|
| + */
|
| + bool matches3(Token token, Keyword keyword) => token.type == TokenType.KEYWORD && (token as KeywordToken).keyword == keyword;
|
| + /**
|
| + * Return {@code true} if the given token has the given type.
|
| + * @param token the token being tested
|
| + * @param type the type of token that is being tested for
|
| + * @return {@code true} if the given token has the given type
|
| + */
|
| + bool matches4(Token token, TokenType type) => token.type == type;
|
| + /**
|
| + * Return {@code true} if the current token has the given type. Note that this method, unlike
|
| + * other variants, will modify the token stream if possible to match a wider range of tokens. In
|
| + * particular, if we are attempting to match a '>' and the next token is either a '>>' or '>>>',
|
| + * the token stream will be re-written and {@code true} will be returned.
|
| + * @param type the type of token that can optionally appear in the current location
|
| + * @return {@code true} if the current token has the given type
|
| + */
|
| + bool matches5(TokenType type) {
|
| + TokenType currentType = _currentToken.type;
|
| + if (currentType != type) {
|
| + if (type == TokenType.GT) {
|
| + if (currentType == TokenType.GT_GT) {
|
| + int offset4 = _currentToken.offset;
|
| + Token first = new Token(TokenType.GT, offset4);
|
| + Token second = new Token(TokenType.GT, offset4 + 1);
|
| + second.setNext(_currentToken.next);
|
| + first.setNext(second);
|
| + _currentToken.previous.setNext(first);
|
| + _currentToken = first;
|
| + return true;
|
| + } else if (currentType == TokenType.GT_EQ) {
|
| + int offset5 = _currentToken.offset;
|
| + Token first = new Token(TokenType.GT, offset5);
|
| + Token second = new Token(TokenType.EQ, offset5 + 1);
|
| + second.setNext(_currentToken.next);
|
| + first.setNext(second);
|
| + _currentToken.previous.setNext(first);
|
| + _currentToken = first;
|
| + return true;
|
| + } else if (currentType == TokenType.GT_GT_EQ) {
|
| + int offset6 = _currentToken.offset;
|
| + Token first = new Token(TokenType.GT, offset6);
|
| + Token second = new Token(TokenType.GT, offset6 + 1);
|
| + Token third = new Token(TokenType.EQ, offset6 + 2);
|
| + third.setNext(_currentToken.next);
|
| + second.setNext(third);
|
| + first.setNext(second);
|
| + _currentToken.previous.setNext(first);
|
| + _currentToken = first;
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| + return true;
|
| + }
|
| + /**
|
| + * Return {@code true} if the given token has any one of the given types.
|
| + * @param token the token being tested
|
| + * @param types the types of token that are being tested for
|
| + * @return {@code true} if the given token has any of the given types
|
| + */
|
| + bool matchesAny(Token token, List<TokenType> types) {
|
| + TokenType actualType = token.type;
|
| + for (TokenType type in types) {
|
| + if (actualType == type) {
|
| + return true;
|
| + }
|
| + }
|
| + return false;
|
| + }
|
| + /**
|
| + * Return {@code true} if the current token is a valid identifier. Valid identifiers include
|
| + * built-in identifiers (pseudo-keywords).
|
| + * @return {@code true} if the current token is a valid identifier
|
| + */
|
| + bool matchesIdentifier() => matchesIdentifier2(_currentToken);
|
| + /**
|
| + * Return {@code true} if the given token is a valid identifier. Valid identifiers include
|
| + * built-in identifiers (pseudo-keywords).
|
| + * @return {@code true} if the given token is a valid identifier
|
| + */
|
| + bool matchesIdentifier2(Token token) => matches4(token, TokenType.IDENTIFIER) || (matches4(token, TokenType.KEYWORD) && (token as KeywordToken).keyword.isPseudoKeyword());
|
| + /**
|
| + * If the current token has the given type, then advance to the next token and return {@code true}. Otherwise, return {@code false} without advancing.
|
| + * @param type the type of token that can optionally appear in the current location
|
| + * @return {@code true} if the current token has the given type
|
| + */
|
| + bool optional(TokenType type) {
|
| + if (matches5(type)) {
|
| + advance();
|
| + return true;
|
| + }
|
| + return false;
|
| + }
|
| + /**
|
| + * Parse an additive expression.
|
| + * <pre>
|
| + * additiveExpression ::=
|
| + * multiplicativeExpression (additiveOperator multiplicativeExpression)
|
| + * | 'super' (additiveOperator multiplicativeExpression)+
|
| + * </pre>
|
| + * @return the additive expression that was parsed
|
| + */
|
| + Expression parseAdditiveExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && _currentToken.next.type.isAdditiveOperator()) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseMultiplicativeExpression();
|
| + }
|
| + while (_currentToken.type.isAdditiveOperator()) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseMultiplicativeExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse an annotation.
|
| + * <pre>
|
| + * annotation ::=
|
| + * '@' qualified (‘.’ identifier)? arguments?
|
| + * </pre>
|
| + * @return the annotation that was parsed
|
| + */
|
| + Annotation parseAnnotation() {
|
| + Token atSign = expect2(TokenType.AT);
|
| + Identifier name = parsePrefixedIdentifier();
|
| + Token period = null;
|
| + SimpleIdentifier constructorName = null;
|
| + if (matches5(TokenType.PERIOD)) {
|
| + period = andAdvance;
|
| + constructorName = parseSimpleIdentifier();
|
| + }
|
| + ArgumentList arguments = null;
|
| + if (matches5(TokenType.OPEN_PAREN)) {
|
| + arguments = parseArgumentList();
|
| + }
|
| + return new Annotation(atSign, name, period, constructorName, arguments);
|
| + }
|
| + /**
|
| + * Parse an argument.
|
| + * <pre>
|
| + * argument ::=
|
| + * namedArgument
|
| + * | expression
|
| + * namedArgument ::=
|
| + * label expression
|
| + * </pre>
|
| + * @return the argument that was parsed
|
| + */
|
| + Expression parseArgument() {
|
| + if (matchesIdentifier() && matches4(peek(), TokenType.COLON)) {
|
| + SimpleIdentifier label = new SimpleIdentifier(andAdvance);
|
| + Label name = new Label(label, andAdvance);
|
| + return new NamedExpression(name, parseExpression2());
|
| + } else {
|
| + return parseExpression2();
|
| + }
|
| + }
|
| + /**
|
| + * Parse an argument definition test.
|
| + * <pre>
|
| + * argumentDefinitionTest ::=
|
| + * '?' identifier
|
| + * </pre>
|
| + * @return the argument definition test that was parsed
|
| + */
|
| + ArgumentDefinitionTest parseArgumentDefinitionTest() {
|
| + Token question = expect2(TokenType.QUESTION);
|
| + SimpleIdentifier identifier = parseSimpleIdentifier();
|
| + return new ArgumentDefinitionTest(question, identifier);
|
| + }
|
| + /**
|
| + * Parse a list of arguments.
|
| + * <pre>
|
| + * arguments ::=
|
| + * '(' argumentList? ')'
|
| + * argumentList ::=
|
| + * namedArgument (',' namedArgument)
|
| + * | expressionList (',' namedArgument)
|
| + * </pre>
|
| + * @return the argument list that was parsed
|
| + */
|
| + ArgumentList parseArgumentList() {
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + List<Expression> arguments = new List<Expression>();
|
| + if (matches5(TokenType.CLOSE_PAREN)) {
|
| + return new ArgumentList(leftParenthesis, arguments, andAdvance);
|
| + }
|
| + Expression argument = parseArgument();
|
| + arguments.add(argument);
|
| + bool foundNamedArgument = argument is NamedExpression;
|
| + bool generatedError = false;
|
| + while (optional(TokenType.COMMA)) {
|
| + argument = parseArgument();
|
| + arguments.add(argument);
|
| + if (foundNamedArgument) {
|
| + if (!generatedError && argument is! NamedExpression) {
|
| + reportError3(ParserErrorCode.POSITIONAL_AFTER_NAMED_ARGUMENT, []);
|
| + generatedError = true;
|
| + }
|
| + } else if (argument is NamedExpression) {
|
| + foundNamedArgument = true;
|
| + }
|
| + }
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + return new ArgumentList(leftParenthesis, arguments, rightParenthesis);
|
| + }
|
| + /**
|
| + * Parse an assert statement.
|
| + * <pre>
|
| + * assertStatement ::=
|
| + * 'assert' '(' conditionalExpression ')' ';'
|
| + * </pre>
|
| + * @return the assert statement
|
| + */
|
| + AssertStatement parseAssertStatement() {
|
| + Token keyword = expect(Keyword.ASSERT);
|
| + Token leftParen = expect2(TokenType.OPEN_PAREN);
|
| + Expression expression = parseConditionalExpression();
|
| + Token rightParen = expect2(TokenType.CLOSE_PAREN);
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new AssertStatement(keyword, leftParen, expression, rightParen, semicolon);
|
| + }
|
| + /**
|
| + * Parse an assignable expression.
|
| + * <pre>
|
| + * assignableExpression ::=
|
| + * primary (arguments* assignableSelector)+
|
| + * | 'super' assignableSelector
|
| + * | identifier
|
| + * </pre>
|
| + * @param primaryAllowed {@code true} if the expression is allowed to be a primary without any
|
| + * assignable selector
|
| + * @return the assignable expression that was parsed
|
| + */
|
| + Expression parseAssignableExpression(bool primaryAllowed) {
|
| + if (matches(Keyword.SUPER)) {
|
| + return parseAssignableSelector(new SuperExpression(andAdvance), false);
|
| + }
|
| + Expression expression = parsePrimaryExpression();
|
| + bool isOptional = primaryAllowed || expression is SimpleIdentifier;
|
| + while (true) {
|
| + while (matches5(TokenType.OPEN_PAREN)) {
|
| + ArgumentList argumentList = parseArgumentList();
|
| + if (expression is SimpleIdentifier) {
|
| + expression = new MethodInvocation(null, null, expression as SimpleIdentifier, argumentList);
|
| + } else if (expression is PrefixedIdentifier) {
|
| + PrefixedIdentifier identifier = expression as PrefixedIdentifier;
|
| + expression = new MethodInvocation(identifier.prefix, identifier.period, identifier.identifier, argumentList);
|
| + } else if (expression is PropertyAccess) {
|
| + PropertyAccess access = expression as PropertyAccess;
|
| + expression = new MethodInvocation(access.target, access.operator, access.propertyName, argumentList);
|
| + } else {
|
| + expression = new FunctionExpressionInvocation(expression, argumentList);
|
| + }
|
| + if (!primaryAllowed) {
|
| + isOptional = false;
|
| + }
|
| + }
|
| + Expression selectorExpression = parseAssignableSelector(expression, isOptional || (expression is PrefixedIdentifier));
|
| + if (selectorExpression == expression) {
|
| + if (!isOptional && (expression is PrefixedIdentifier)) {
|
| + PrefixedIdentifier identifier = expression as PrefixedIdentifier;
|
| + expression = new PropertyAccess(identifier.prefix, identifier.period, identifier.identifier);
|
| + }
|
| + return expression;
|
| + }
|
| + expression = selectorExpression;
|
| + isOptional = true;
|
| + }
|
| + }
|
| + /**
|
| + * Parse an assignable selector.
|
| + * <pre>
|
| + * assignableSelector ::=
|
| + * '[' expression ']'
|
| + * | '.' identifier
|
| + * </pre>
|
| + * @param prefix the expression preceding the selector
|
| + * @param optional {@code true} if the selector is optional
|
| + * @return the assignable selector that was parsed
|
| + */
|
| + Expression parseAssignableSelector(Expression prefix, bool optional) {
|
| + if (matches5(TokenType.OPEN_SQUARE_BRACKET)) {
|
| + Token leftBracket = andAdvance;
|
| + Expression index = parseExpression2();
|
| + Token rightBracket = expect2(TokenType.CLOSE_SQUARE_BRACKET);
|
| + return new IndexExpression.con1(prefix, leftBracket, index, rightBracket);
|
| + } else if (matches5(TokenType.PERIOD)) {
|
| + Token period = andAdvance;
|
| + return new PropertyAccess(prefix, period, parseSimpleIdentifier());
|
| + } else {
|
| + if (!optional) {
|
| + reportError3(ParserErrorCode.MISSING_ASSIGNABLE_SELECTOR, []);
|
| + }
|
| + return prefix;
|
| + }
|
| + }
|
| + /**
|
| + * Parse a bitwise and expression.
|
| + * <pre>
|
| + * bitwiseAndExpression ::=
|
| + * equalityExpression ('&' equalityExpression)
|
| + * | 'super' ('&' equalityExpression)+
|
| + * </pre>
|
| + * @return the bitwise and expression that was parsed
|
| + */
|
| + Expression parseBitwiseAndExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && matches4(peek(), TokenType.AMPERSAND)) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseEqualityExpression();
|
| + }
|
| + while (matches5(TokenType.AMPERSAND)) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseEqualityExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a bitwise or expression.
|
| + * <pre>
|
| + * bitwiseOrExpression ::=
|
| + * bitwiseXorExpression ('|' bitwiseXorExpression)
|
| + * | 'super' ('|' bitwiseXorExpression)+
|
| + * </pre>
|
| + * @return the bitwise or expression that was parsed
|
| + */
|
| + Expression parseBitwiseOrExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && matches4(peek(), TokenType.BAR)) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseBitwiseXorExpression();
|
| + }
|
| + while (matches5(TokenType.BAR)) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseBitwiseXorExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a bitwise exclusive-or expression.
|
| + * <pre>
|
| + * bitwiseXorExpression ::=
|
| + * bitwiseAndExpression ('^' bitwiseAndExpression)
|
| + * | 'super' ('^' bitwiseAndExpression)+
|
| + * </pre>
|
| + * @return the bitwise exclusive-or expression that was parsed
|
| + */
|
| + Expression parseBitwiseXorExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && matches4(peek(), TokenType.CARET)) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseBitwiseAndExpression();
|
| + }
|
| + while (matches5(TokenType.CARET)) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseBitwiseAndExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a block.
|
| + * <pre>
|
| + * block ::=
|
| + * '{' statements '}'
|
| + * </pre>
|
| + * @return the block that was parsed
|
| + */
|
| + Block parseBlock() {
|
| + Token leftBracket = expect2(TokenType.OPEN_CURLY_BRACKET);
|
| + List<Statement> statements = new List<Statement>();
|
| + Token statementStart = _currentToken;
|
| + while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET)) {
|
| + Statement statement = parseStatement2();
|
| + if (statement != null) {
|
| + statements.add(statement);
|
| + }
|
| + if (_currentToken == statementStart) {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + advance();
|
| + }
|
| + statementStart = _currentToken;
|
| + }
|
| + Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
|
| + return new Block(leftBracket, statements, rightBracket);
|
| + }
|
| + /**
|
| + * Parse a break statement.
|
| + * <pre>
|
| + * breakStatement ::=
|
| + * 'break' identifier? ';'
|
| + * </pre>
|
| + * @return the break statement that was parsed
|
| + */
|
| + Statement parseBreakStatement() {
|
| + Token breakKeyword = expect(Keyword.BREAK);
|
| + SimpleIdentifier label = null;
|
| + if (matchesIdentifier()) {
|
| + label = parseSimpleIdentifier();
|
| + }
|
| + if (!_inLoop && !_inSwitch && label == null) {
|
| + reportError4(ParserErrorCode.BREAK_OUTSIDE_OF_LOOP, breakKeyword, []);
|
| + }
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new BreakStatement(breakKeyword, label, semicolon);
|
| + }
|
| + /**
|
| + * Parse a cascade section.
|
| + * <pre>
|
| + * cascadeSection ::=
|
| + * '..' cascadeSelector arguments* (assignableSelector arguments*)* cascadeAssignment?
|
| + * cascadeSelector ::=
|
| + * '[' expression ']'
|
| + * | identifier
|
| + * cascadeAssignment ::=
|
| + * assignmentOperator expressionWithoutCascade
|
| + * </pre>
|
| + * @return the expression representing the cascaded method invocation
|
| + */
|
| + Expression parseCascadeSection() {
|
| + Token period = expect2(TokenType.PERIOD_PERIOD);
|
| + Expression expression = null;
|
| + SimpleIdentifier functionName = null;
|
| + if (matchesIdentifier()) {
|
| + functionName = parseSimpleIdentifier();
|
| + } else if (_currentToken.type == TokenType.OPEN_SQUARE_BRACKET) {
|
| + Token leftBracket = andAdvance;
|
| + Expression index = parseExpression2();
|
| + Token rightBracket = expect2(TokenType.CLOSE_SQUARE_BRACKET);
|
| + expression = new IndexExpression.con2(period, leftBracket, index, rightBracket);
|
| + period = null;
|
| + } else {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + return expression;
|
| + }
|
| + if (_currentToken.type == TokenType.OPEN_PAREN) {
|
| + while (_currentToken.type == TokenType.OPEN_PAREN) {
|
| + if (functionName != null) {
|
| + expression = new MethodInvocation(expression, period, functionName, parseArgumentList());
|
| + period = null;
|
| + functionName = null;
|
| + } else if (expression == null) {
|
| + return null;
|
| + } else {
|
| + expression = new FunctionExpressionInvocation(expression, parseArgumentList());
|
| + }
|
| + }
|
| + } else if (functionName != null) {
|
| + expression = new PropertyAccess(expression, period, functionName);
|
| + period = null;
|
| + }
|
| + bool progress = true;
|
| + while (progress) {
|
| + progress = false;
|
| + Expression selector = parseAssignableSelector(expression, true);
|
| + if (selector != expression) {
|
| + expression = selector;
|
| + progress = true;
|
| + while (_currentToken.type == TokenType.OPEN_PAREN) {
|
| + expression = new FunctionExpressionInvocation(expression, parseArgumentList());
|
| + }
|
| + }
|
| + }
|
| + if (_currentToken.type.isAssignmentOperator()) {
|
| + Token operator = andAdvance;
|
| + ensureAssignable(expression);
|
| + expression = new AssignmentExpression(expression, operator, parseExpression2());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a class declaration.
|
| + * <pre>
|
| + * classDeclaration ::=
|
| + * metadata 'abstract'? 'class' name typeParameterList? (extendsClause withClause?)? implementsClause? '{' classMembers '}'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the member
|
| + * @param abstractKeyword the token for the keyword 'abstract', or {@code null} if the keyword was
|
| + * not given
|
| + * @return the class declaration that was parsed
|
| + */
|
| + ClassDeclaration parseClassDeclaration(CommentAndMetadata commentAndMetadata, Token abstractKeyword) {
|
| + Token keyword = expect(Keyword.CLASS);
|
| + SimpleIdentifier name = parseSimpleIdentifier2(ParserErrorCode.BUILT_IN_IDENTIFIER_AS_TYPE_NAME);
|
| + String className = name.name;
|
| + TypeParameterList typeParameters = null;
|
| + if (matches5(TokenType.LT)) {
|
| + typeParameters = parseTypeParameterList();
|
| + }
|
| + ExtendsClause extendsClause = null;
|
| + WithClause withClause = null;
|
| + ImplementsClause implementsClause = null;
|
| + bool foundClause = true;
|
| + while (foundClause) {
|
| + if (matches(Keyword.EXTENDS)) {
|
| + if (extendsClause == null) {
|
| + extendsClause = parseExtendsClause();
|
| + if (withClause != null) {
|
| + reportError4(ParserErrorCode.WITH_BEFORE_EXTENDS, withClause.withKeyword, []);
|
| + } else if (implementsClause != null) {
|
| + reportError4(ParserErrorCode.IMPLEMENTS_BEFORE_EXTENDS, implementsClause.keyword, []);
|
| + }
|
| + } else {
|
| + reportError4(ParserErrorCode.MULTIPLE_EXTENDS_CLAUSES, extendsClause.keyword, []);
|
| + parseExtendsClause();
|
| + }
|
| + } else if (matches(Keyword.WITH)) {
|
| + if (withClause == null) {
|
| + withClause = parseWithClause();
|
| + if (implementsClause != null) {
|
| + reportError4(ParserErrorCode.IMPLEMENTS_BEFORE_WITH, implementsClause.keyword, []);
|
| + }
|
| + } else {
|
| + reportError4(ParserErrorCode.MULTIPLE_WITH_CLAUSES, withClause.withKeyword, []);
|
| + parseWithClause();
|
| + }
|
| + } else if (matches(Keyword.IMPLEMENTS)) {
|
| + if (implementsClause == null) {
|
| + implementsClause = parseImplementsClause();
|
| + } else {
|
| + reportError4(ParserErrorCode.MULTIPLE_IMPLEMENTS_CLAUSES, implementsClause.keyword, []);
|
| + parseImplementsClause();
|
| + }
|
| + } else {
|
| + foundClause = false;
|
| + }
|
| + }
|
| + if (withClause != null && extendsClause == null) {
|
| + reportError4(ParserErrorCode.WITH_WITHOUT_EXTENDS, withClause.withKeyword, []);
|
| + }
|
| + Token leftBracket = null;
|
| + List<ClassMember> members = null;
|
| + Token rightBracket = null;
|
| + if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + leftBracket = expect2(TokenType.OPEN_CURLY_BRACKET);
|
| + members = parseClassMembers(className);
|
| + rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
|
| + } else {
|
| + leftBracket = createSyntheticToken(TokenType.OPEN_CURLY_BRACKET);
|
| + rightBracket = createSyntheticToken(TokenType.CLOSE_CURLY_BRACKET);
|
| + reportError3(ParserErrorCode.MISSING_CLASS_BODY, []);
|
| + }
|
| + return new ClassDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, abstractKeyword, keyword, name, typeParameters, extendsClause, withClause, implementsClause, leftBracket, members, rightBracket);
|
| + }
|
| + /**
|
| + * Parse a class member.
|
| + * <pre>
|
| + * classMemberDefinition ::=
|
| + * declaration ';'
|
| + * | methodSignature functionBody
|
| + * </pre>
|
| + * @param className the name of the class containing the member being parsed
|
| + * @return the class member that was parsed
|
| + */
|
| + ClassMember parseClassMember(String className) {
|
| + CommentAndMetadata commentAndMetadata = parseCommentAndMetadata();
|
| + Modifiers modifiers = parseModifiers();
|
| + if (matches(Keyword.VOID)) {
|
| + TypeName returnType = parseReturnType();
|
| + if (matches(Keyword.GET) && matchesIdentifier2(peek())) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseGetter(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, returnType);
|
| + } else if (matches(Keyword.SET) && matchesIdentifier2(peek())) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseSetter(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, returnType);
|
| + } else if (matches(Keyword.OPERATOR) && peek().isOperator()) {
|
| + validateModifiersForOperator(modifiers);
|
| + return parseOperator(commentAndMetadata, modifiers.externalKeyword, returnType);
|
| + } else if (matchesIdentifier() && matchesAny(peek(), [TokenType.OPEN_PAREN, TokenType.OPEN_CURLY_BRACKET, TokenType.FUNCTION])) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseMethodDeclaration(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, returnType);
|
| + } else {
|
| + if (matchesIdentifier()) {
|
| + if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
|
| + reportError(ParserErrorCode.VOID_VARIABLE, returnType, []);
|
| + return parseInitializedIdentifierList(commentAndMetadata, modifiers.staticKeyword, validateModifiersForField(modifiers), returnType);
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| + } else if (matches(Keyword.GET) && matchesIdentifier2(peek())) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseGetter(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, null);
|
| + } else if (matches(Keyword.SET) && matchesIdentifier2(peek())) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseSetter(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, null);
|
| + } else if (matches(Keyword.OPERATOR) && peek().isOperator()) {
|
| + validateModifiersForOperator(modifiers);
|
| + return parseOperator(commentAndMetadata, modifiers.externalKeyword, null);
|
| + } else if (!matchesIdentifier()) {
|
| + return null;
|
| + } else if (matches4(peek(), TokenType.PERIOD) && matchesIdentifier2(peek2(2)) && matches4(peek2(3), TokenType.OPEN_PAREN)) {
|
| + return parseConstructor(commentAndMetadata, modifiers.externalKeyword, validateModifiersForConstructor(modifiers), modifiers.factoryKeyword, parseSimpleIdentifier(), andAdvance, parseSimpleIdentifier(), parseFormalParameterList());
|
| + } else if (matches4(peek(), TokenType.OPEN_PAREN)) {
|
| + SimpleIdentifier methodName = parseSimpleIdentifier();
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + if (matches5(TokenType.COLON) || modifiers.factoryKeyword != null || methodName.name == className) {
|
| + return parseConstructor(commentAndMetadata, modifiers.externalKeyword, validateModifiersForConstructor(modifiers), modifiers.factoryKeyword, methodName, null, null, parameters);
|
| + }
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + validateFormalParameterList(parameters);
|
| + return parseMethodDeclaration2(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, null, methodName, parameters);
|
| + } else if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
|
| + return parseInitializedIdentifierList(commentAndMetadata, modifiers.staticKeyword, validateModifiersForField(modifiers), null);
|
| + }
|
| + TypeName type = parseTypeName();
|
| + if (matches(Keyword.GET) && matchesIdentifier2(peek())) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseGetter(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, type);
|
| + } else if (matches(Keyword.SET) && matchesIdentifier2(peek())) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseSetter(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, type);
|
| + } else if (matches(Keyword.OPERATOR) && peek().isOperator()) {
|
| + validateModifiersForOperator(modifiers);
|
| + return parseOperator(commentAndMetadata, modifiers.externalKeyword, type);
|
| + } else if (!matchesIdentifier()) {
|
| + } else if (matches4(peek(), TokenType.OPEN_PAREN)) {
|
| + validateModifiersForGetterOrSetterOrMethod(modifiers);
|
| + return parseMethodDeclaration(commentAndMetadata, modifiers.externalKeyword, modifiers.staticKeyword, type);
|
| + }
|
| + return parseInitializedIdentifierList(commentAndMetadata, modifiers.staticKeyword, validateModifiersForField(modifiers), type);
|
| + }
|
| + /**
|
| + * Parse a list of class members.
|
| + * <pre>
|
| + * classMembers ::=
|
| + * (metadata memberDefinition)
|
| + * </pre>
|
| + * @return the list of class members that were parsed
|
| + */
|
| + List<ClassMember> parseClassMembers(String className) {
|
| + List<ClassMember> members = new List<ClassMember>();
|
| + Token memberStart = _currentToken;
|
| + while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET) && !matches(Keyword.CLASS) && !matches(Keyword.TYPEDEF)) {
|
| + if (matches5(TokenType.SEMICOLON)) {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + ClassMember member = parseClassMember(className);
|
| + if (member != null) {
|
| + members.add(member);
|
| + }
|
| + }
|
| + if (_currentToken == memberStart) {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + advance();
|
| + }
|
| + memberStart = _currentToken;
|
| + }
|
| + return members;
|
| + }
|
| + /**
|
| + * Parse a class type alias.
|
| + * <pre>
|
| + * classTypeAlias ::=
|
| + * identifier typeParameters? '=' 'abstract'? mixinApplication
|
| + * mixinApplication ::=
|
| + * type withClause implementsClause? ';'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the member
|
| + * @param keyword the token representing the 'typedef' keyword
|
| + * @return the class type alias that was parsed
|
| + */
|
| + ClassTypeAlias parseClassTypeAlias(CommentAndMetadata commentAndMetadata, Token keyword) {
|
| + SimpleIdentifier name = parseSimpleIdentifier();
|
| + TypeParameterList typeParameters = null;
|
| + if (matches5(TokenType.LT)) {
|
| + typeParameters = parseTypeParameterList();
|
| + }
|
| + Token equals = expect2(TokenType.EQ);
|
| + Token abstractKeyword = null;
|
| + if (matches(Keyword.ABSTRACT)) {
|
| + abstractKeyword = andAdvance;
|
| + }
|
| + TypeName superclass = parseTypeName();
|
| + WithClause withClause = parseWithClause();
|
| + ImplementsClause implementsClause = null;
|
| + if (matches(Keyword.IMPLEMENTS)) {
|
| + implementsClause = parseImplementsClause();
|
| + }
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new ClassTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, name, typeParameters, equals, abstractKeyword, superclass, withClause, implementsClause, semicolon);
|
| + }
|
| + /**
|
| + * Parse a list of combinators in a directive.
|
| + * <pre>
|
| + * combinator ::=
|
| + * 'show' identifier (',' identifier)
|
| + * | 'hide' identifier (',' identifier)
|
| + * </pre>
|
| + * @return the combinators that were parsed
|
| + */
|
| + List<Combinator> parseCombinators() {
|
| + List<Combinator> combinators = new List<Combinator>();
|
| + while (matches2(Parser._SHOW) || matches2(Parser._HIDE)) {
|
| + Token keyword = expect2(TokenType.IDENTIFIER);
|
| + if (keyword.lexeme == Parser._SHOW) {
|
| + List<SimpleIdentifier> shownNames = parseIdentifierList();
|
| + combinators.add(new ShowCombinator(keyword, shownNames));
|
| + } else {
|
| + List<SimpleIdentifier> hiddenNames = parseIdentifierList();
|
| + combinators.add(new HideCombinator(keyword, hiddenNames));
|
| + }
|
| + }
|
| + return combinators;
|
| + }
|
| + /**
|
| + * Parse the documentation comment and metadata preceeding a declaration. This method allows any
|
| + * number of documentation comments to occur before, after or between the metadata, but only
|
| + * returns the last (right-most) documentation comment that is found.
|
| + * <pre>
|
| + * metadata ::=
|
| + * annotation
|
| + * </pre>
|
| + * @return the documentation comment and metadata that were parsed
|
| + */
|
| + CommentAndMetadata parseCommentAndMetadata() {
|
| + Comment comment = parseDocumentationComment();
|
| + List<Annotation> metadata = new List<Annotation>();
|
| + while (matches5(TokenType.AT)) {
|
| + metadata.add(parseAnnotation());
|
| + Comment optionalComment = parseDocumentationComment();
|
| + if (optionalComment != null) {
|
| + comment = optionalComment;
|
| + }
|
| + }
|
| + return new CommentAndMetadata(comment, metadata);
|
| + }
|
| + /**
|
| + * Parse a comment reference from the source between square brackets.
|
| + * <pre>
|
| + * commentReference ::=
|
| + * 'new'? prefixedIdentifier
|
| + * </pre>
|
| + * @param referenceSource the source occurring between the square brackets within a documentation
|
| + * comment
|
| + * @param sourceOffset the offset of the first character of the reference source
|
| + * @return the comment reference that was parsed
|
| + */
|
| + CommentReference parseCommentReference(String referenceSource, int sourceOffset) {
|
| + if (referenceSource.length == 0) {
|
| + return null;
|
| + }
|
| + try {
|
| + List<bool> errorFound = [false];
|
| + AnalysisErrorListener listener = new AnalysisErrorListener_1(errorFound);
|
| + StringScanner scanner = new StringScanner(null, referenceSource, listener);
|
| + scanner.setSourceStart(1, 1, sourceOffset);
|
| + Token firstToken = scanner.tokenize();
|
| + if (!errorFound[0]) {
|
| + Token newKeyword = null;
|
| + if (matches3(firstToken, Keyword.NEW)) {
|
| + newKeyword = firstToken;
|
| + firstToken = firstToken.next;
|
| + }
|
| + if (matchesIdentifier2(firstToken)) {
|
| + Token secondToken = firstToken.next;
|
| + Token thirdToken = secondToken.next;
|
| + Token nextToken;
|
| + Identifier identifier;
|
| + if (matches4(secondToken, TokenType.PERIOD) && matchesIdentifier2(thirdToken)) {
|
| + identifier = new PrefixedIdentifier(new SimpleIdentifier(firstToken), secondToken, new SimpleIdentifier(thirdToken));
|
| + nextToken = thirdToken.next;
|
| + } else {
|
| + identifier = new SimpleIdentifier(firstToken);
|
| + nextToken = firstToken.next;
|
| + }
|
| + if (nextToken.type != TokenType.EOF) {
|
| + }
|
| + return new CommentReference(newKeyword, identifier);
|
| + } else if (matches3(firstToken, Keyword.THIS) || matches3(firstToken, Keyword.NULL) || matches3(firstToken, Keyword.TRUE) || matches3(firstToken, Keyword.FALSE)) {
|
| + return null;
|
| + } else if (matches4(firstToken, TokenType.STRING)) {
|
| + } else {
|
| + }
|
| + }
|
| + } on Exception catch (exception) {
|
| + }
|
| + return null;
|
| + }
|
| + /**
|
| + * Parse all of the comment references occurring in the given array of documentation comments.
|
| + * <pre>
|
| + * commentReference ::=
|
| + * '[' 'new'? qualified ']' libraryReference?
|
| + * libraryReference ::=
|
| + * '(' stringLiteral ')'
|
| + * </pre>
|
| + * @param tokens the comment tokens representing the documentation comments to be parsed
|
| + * @return the comment references that were parsed
|
| + */
|
| + List<CommentReference> parseCommentReferences(List<Token> tokens) {
|
| + List<CommentReference> references = new List<CommentReference>();
|
| + for (Token token in tokens) {
|
| + String comment = token.lexeme;
|
| + int leftIndex = comment.indexOf('[');
|
| + while (leftIndex >= 0) {
|
| + int rightIndex = comment.indexOf(']', leftIndex);
|
| + if (rightIndex >= 0) {
|
| + int firstChar = comment.charCodeAt(leftIndex + 1);
|
| + if (firstChar != 0x27 && firstChar != 0x22 && firstChar != 0x3a) {
|
| + CommentReference reference = parseCommentReference(comment.substring(leftIndex + 1, rightIndex), token.offset + leftIndex + 1);
|
| + if (reference != null) {
|
| + references.add(reference);
|
| + }
|
| + }
|
| + } else {
|
| + rightIndex = leftIndex + 1;
|
| + }
|
| + leftIndex = comment.indexOf('[', rightIndex);
|
| + }
|
| + }
|
| + return references;
|
| + }
|
| + /**
|
| + * Parse a compilation unit.
|
| + * <p>
|
| + * Specified:
|
| + * <pre>
|
| + * compilationUnit ::=
|
| + * scriptTag? directive* topLevelDeclaration
|
| + * </pre>
|
| + * Actual:
|
| + * <pre>
|
| + * compilationUnit ::=
|
| + * scriptTag? topLevelElement
|
| + * topLevelElement ::=
|
| + * directive
|
| + * | topLevelDeclaration
|
| + * </pre>
|
| + * @return the compilation unit that was parsed
|
| + */
|
| + CompilationUnit parseCompilationUnit2() {
|
| + Token firstToken = _currentToken.precedingComments;
|
| + if (firstToken == null) {
|
| + firstToken = _currentToken;
|
| + }
|
| + ScriptTag scriptTag = null;
|
| + if (matches5(TokenType.SCRIPT_TAG)) {
|
| + scriptTag = new ScriptTag(andAdvance);
|
| + }
|
| + bool libraryDirectiveFound = false;
|
| + bool partOfDirectiveFound = false;
|
| + bool partDirectiveFound = false;
|
| + bool directiveFoundAfterDeclaration = false;
|
| + List<Directive> directives = new List<Directive>();
|
| + List<CompilationUnitMember> declarations = new List<CompilationUnitMember>();
|
| + Token memberStart = _currentToken;
|
| + while (!matches5(TokenType.EOF)) {
|
| + CommentAndMetadata commentAndMetadata = parseCommentAndMetadata();
|
| + if (matches(Keyword.IMPORT) || matches(Keyword.EXPORT) || matches(Keyword.LIBRARY) || matches(Keyword.PART)) {
|
| + Directive directive = parseDirective(commentAndMetadata);
|
| + if (declarations.length > 0 && !directiveFoundAfterDeclaration) {
|
| + reportError3(ParserErrorCode.DIRECTIVE_AFTER_DECLARATION, []);
|
| + directiveFoundAfterDeclaration = true;
|
| + }
|
| + if (directive is LibraryDirective) {
|
| + if (libraryDirectiveFound) {
|
| + reportError3(ParserErrorCode.MULTIPLE_LIBRARY_DIRECTIVES, []);
|
| + } else {
|
| + if (directives.length > 0) {
|
| + reportError3(ParserErrorCode.LIBRARY_DIRECTIVE_NOT_FIRST, []);
|
| + }
|
| + libraryDirectiveFound = true;
|
| + }
|
| + } else if (directive is PartDirective) {
|
| + partDirectiveFound = true;
|
| + } else if (partDirectiveFound) {
|
| + if (directive is ExportDirective) {
|
| + reportError3(ParserErrorCode.EXPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, []);
|
| + } else if (directive is ImportDirective) {
|
| + reportError3(ParserErrorCode.IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, []);
|
| + }
|
| + }
|
| + if (directive is PartOfDirective) {
|
| + if (partOfDirectiveFound) {
|
| + reportError3(ParserErrorCode.MULTIPLE_PART_OF_DIRECTIVES, []);
|
| + } else {
|
| + for (Directive preceedingDirective in directives) {
|
| + reportError4(ParserErrorCode.NON_PART_OF_DIRECTIVE_IN_PART, preceedingDirective.keyword, []);
|
| + }
|
| + partOfDirectiveFound = true;
|
| + }
|
| + } else {
|
| + if (partOfDirectiveFound) {
|
| + reportError4(ParserErrorCode.NON_PART_OF_DIRECTIVE_IN_PART, directive.keyword, []);
|
| + }
|
| + }
|
| + directives.add(directive);
|
| + } else if (matches5(TokenType.SEMICOLON)) {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + CompilationUnitMember member = parseCompilationUnitMember(commentAndMetadata);
|
| + if (member != null) {
|
| + declarations.add(member);
|
| + }
|
| + }
|
| + if (_currentToken == memberStart) {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + advance();
|
| + }
|
| + memberStart = _currentToken;
|
| + }
|
| + return new CompilationUnit(firstToken, scriptTag, directives, declarations, _currentToken);
|
| + }
|
| + /**
|
| + * Parse a compilation unit member.
|
| + * <pre>
|
| + * compilationUnitMember ::=
|
| + * classDefinition
|
| + * | functionTypeAlias
|
| + * | external functionSignature
|
| + * | external getterSignature
|
| + * | external setterSignature
|
| + * | functionSignature functionBody
|
| + * | returnType? getOrSet identifier formalParameterList functionBody
|
| + * | (final | const) type? staticFinalDeclarationList ';'
|
| + * | variableDeclaration ';'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the member
|
| + * @return the compilation unit member that was parsed
|
| + */
|
| + CompilationUnitMember parseCompilationUnitMember(CommentAndMetadata commentAndMetadata) {
|
| + Modifiers modifiers = parseModifiers();
|
| + if (matches(Keyword.CLASS)) {
|
| + return parseClassDeclaration(commentAndMetadata, validateModifiersForClass(modifiers));
|
| + } else if (matches(Keyword.TYPEDEF)) {
|
| + validateModifiersForTypedef(modifiers);
|
| + return parseTypeAlias(commentAndMetadata);
|
| + }
|
| + if (matches(Keyword.VOID)) {
|
| + TypeName returnType = parseReturnType();
|
| + if ((matches(Keyword.GET) || matches(Keyword.SET)) && matchesIdentifier2(peek())) {
|
| + validateModifiersForTopLevelFunction(modifiers);
|
| + return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null, false);
|
| + } else if (matches(Keyword.OPERATOR) && peek().isOperator()) {
|
| + return null;
|
| + } else if (matchesIdentifier() && matchesAny(peek(), [TokenType.OPEN_PAREN, TokenType.OPEN_CURLY_BRACKET, TokenType.FUNCTION])) {
|
| + validateModifiersForTopLevelFunction(modifiers);
|
| + return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null, false);
|
| + } else {
|
| + if (matchesIdentifier()) {
|
| + if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
|
| + reportError(ParserErrorCode.VOID_VARIABLE, returnType, []);
|
| + return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(validateModifiersForTopLevelVariable(modifiers), null), expect2(TokenType.SEMICOLON));
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| + } else if ((matches(Keyword.GET) || matches(Keyword.SET)) && matchesIdentifier2(peek())) {
|
| + validateModifiersForTopLevelFunction(modifiers);
|
| + return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null, false);
|
| + } else if (matches(Keyword.OPERATOR) && peek().isOperator()) {
|
| + return null;
|
| + } else if (!matchesIdentifier()) {
|
| + return null;
|
| + } else if (matches4(peek(), TokenType.OPEN_PAREN)) {
|
| + validateModifiersForTopLevelFunction(modifiers);
|
| + return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, null, false);
|
| + } else if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
|
| + return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(validateModifiersForTopLevelVariable(modifiers), null), expect2(TokenType.SEMICOLON));
|
| + }
|
| + TypeName returnType = parseReturnType();
|
| + if (matches(Keyword.GET) || matches(Keyword.SET)) {
|
| + validateModifiersForTopLevelFunction(modifiers);
|
| + return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, returnType, false);
|
| + } else if (!matchesIdentifier()) {
|
| + return null;
|
| + }
|
| + if (matchesAny(peek(), [TokenType.OPEN_PAREN, TokenType.FUNCTION, TokenType.OPEN_CURLY_BRACKET])) {
|
| + validateModifiersForTopLevelFunction(modifiers);
|
| + return parseFunctionDeclaration(commentAndMetadata, modifiers.externalKeyword, returnType, false);
|
| + }
|
| + return new TopLevelVariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, parseVariableDeclarationList2(validateModifiersForTopLevelVariable(modifiers), returnType), expect2(TokenType.SEMICOLON));
|
| + }
|
| + /**
|
| + * Parse a conditional expression.
|
| + * <pre>
|
| + * conditionalExpression ::=
|
| + * logicalOrExpression ('?' expressionWithoutCascade ':' expressionWithoutCascade)?
|
| + * </pre>
|
| + * @return the conditional expression that was parsed
|
| + */
|
| + Expression parseConditionalExpression() {
|
| + Expression condition = parseLogicalOrExpression();
|
| + if (!matches5(TokenType.QUESTION)) {
|
| + return condition;
|
| + }
|
| + Token question = andAdvance;
|
| + Expression thenExpression = parseExpressionWithoutCascade();
|
| + Token colon = expect2(TokenType.COLON);
|
| + Expression elseExpression = parseExpressionWithoutCascade();
|
| + return new ConditionalExpression(condition, question, thenExpression, colon, elseExpression);
|
| + }
|
| + /**
|
| + * Parse a const expression.
|
| + * <pre>
|
| + * constExpression ::=
|
| + * instanceCreationExpression
|
| + * | listLiteral
|
| + * | mapLiteral
|
| + * </pre>
|
| + * @return the const expression that was parsed
|
| + */
|
| + Expression parseConstExpression() {
|
| + Token keyword = expect(Keyword.CONST);
|
| + if (matches5(TokenType.OPEN_SQUARE_BRACKET) || matches5(TokenType.INDEX)) {
|
| + return parseListLiteral(keyword, null);
|
| + } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + return parseMapLiteral(keyword, null);
|
| + } else if (matches5(TokenType.LT)) {
|
| + return parseListOrMapLiteral(keyword);
|
| + }
|
| + return parseInstanceCreationExpression(keyword);
|
| + }
|
| + ConstructorDeclaration parseConstructor(CommentAndMetadata commentAndMetadata, Token externalKeyword, Token constKeyword, Token factoryKeyword, SimpleIdentifier returnType, Token period, SimpleIdentifier name, FormalParameterList parameters) {
|
| + bool bodyAllowed = externalKeyword == null;
|
| + Token separator = null;
|
| + List<ConstructorInitializer> initializers = null;
|
| + if (matches5(TokenType.COLON)) {
|
| + separator = andAdvance;
|
| + initializers = new List<ConstructorInitializer>();
|
| + do {
|
| + if (matches(Keyword.THIS)) {
|
| + if (matches4(peek(), TokenType.OPEN_PAREN)) {
|
| + bodyAllowed = false;
|
| + initializers.add(parseRedirectingConstructorInvocation());
|
| + } else if (matches4(peek(), TokenType.PERIOD) && matches4(peek2(3), TokenType.OPEN_PAREN)) {
|
| + bodyAllowed = false;
|
| + initializers.add(parseRedirectingConstructorInvocation());
|
| + } else {
|
| + initializers.add(parseConstructorFieldInitializer());
|
| + }
|
| + } else if (matches(Keyword.SUPER)) {
|
| + initializers.add(parseSuperConstructorInvocation());
|
| + } else {
|
| + initializers.add(parseConstructorFieldInitializer());
|
| + }
|
| + } while (optional(TokenType.COMMA));
|
| + }
|
| + ConstructorName redirectedConstructor = null;
|
| + FunctionBody body;
|
| + if (matches5(TokenType.EQ)) {
|
| + separator = andAdvance;
|
| + redirectedConstructor = parseConstructorName();
|
| + body = new EmptyFunctionBody(expect2(TokenType.SEMICOLON));
|
| + } else {
|
| + body = parseFunctionBody(true, false);
|
| + if (!bodyAllowed && body is! EmptyFunctionBody) {
|
| + reportError3(ParserErrorCode.EXTERNAL_CONSTRUCTOR_WITH_BODY, []);
|
| + }
|
| + }
|
| + return new ConstructorDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, constKeyword, factoryKeyword, returnType, period, name, parameters, separator, initializers, redirectedConstructor, body);
|
| + }
|
| + /**
|
| + * Parse a field initializer within a constructor.
|
| + * <pre>
|
| + * fieldInitializer:
|
| + * ('this' '.')? identifier '=' conditionalExpression cascadeSection
|
| + * </pre>
|
| + * @return the field initializer that was parsed
|
| + */
|
| + ConstructorFieldInitializer parseConstructorFieldInitializer() {
|
| + Token keyword = null;
|
| + Token period = null;
|
| + if (matches(Keyword.THIS)) {
|
| + keyword = andAdvance;
|
| + period = expect2(TokenType.PERIOD);
|
| + }
|
| + SimpleIdentifier fieldName = parseSimpleIdentifier();
|
| + Token equals = expect2(TokenType.EQ);
|
| + Expression expression = parseConditionalExpression();
|
| + TokenType tokenType = _currentToken.type;
|
| + if (tokenType == TokenType.PERIOD_PERIOD) {
|
| + List<Expression> cascadeSections = new List<Expression>();
|
| + while (tokenType == TokenType.PERIOD_PERIOD) {
|
| + Expression section = parseCascadeSection();
|
| + if (section != null) {
|
| + cascadeSections.add(section);
|
| + }
|
| + tokenType = _currentToken.type;
|
| + }
|
| + expression = new CascadeExpression(expression, cascadeSections);
|
| + }
|
| + return new ConstructorFieldInitializer(keyword, period, fieldName, equals, expression);
|
| + }
|
| + /**
|
| + * Parse the name of a constructor.
|
| + * <pre>
|
| + * constructorName:
|
| + * type ('.' identifier)?
|
| + * </pre>
|
| + * @return the constructor name that was parsed
|
| + */
|
| + ConstructorName parseConstructorName() {
|
| + TypeName type = parseTypeName();
|
| + Token period = null;
|
| + SimpleIdentifier name = null;
|
| + if (matches5(TokenType.PERIOD)) {
|
| + period = andAdvance;
|
| + name = parseSimpleIdentifier();
|
| + }
|
| + return new ConstructorName(type, period, name);
|
| + }
|
| + /**
|
| + * Parse a continue statement.
|
| + * <pre>
|
| + * continueStatement ::=
|
| + * 'continue' identifier? ';'
|
| + * </pre>
|
| + * @return the continue statement that was parsed
|
| + */
|
| + Statement parseContinueStatement() {
|
| + Token continueKeyword = expect(Keyword.CONTINUE);
|
| + if (!_inLoop && !_inSwitch) {
|
| + reportError4(ParserErrorCode.CONTINUE_OUTSIDE_OF_LOOP, continueKeyword, []);
|
| + }
|
| + SimpleIdentifier label = null;
|
| + if (matchesIdentifier()) {
|
| + label = parseSimpleIdentifier();
|
| + }
|
| + if (_inSwitch && !_inLoop && label == null) {
|
| + reportError4(ParserErrorCode.CONTINUE_WITHOUT_LABEL_IN_CASE, continueKeyword, []);
|
| + }
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new ContinueStatement(continueKeyword, label, semicolon);
|
| + }
|
| + /**
|
| + * Parse a directive.
|
| + * <pre>
|
| + * directive ::=
|
| + * exportDirective
|
| + * | libraryDirective
|
| + * | importDirective
|
| + * | partDirective
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the directive
|
| + * @return the directive that was parsed
|
| + */
|
| + Directive parseDirective(CommentAndMetadata commentAndMetadata) {
|
| + if (matches(Keyword.IMPORT)) {
|
| + return parseImportDirective(commentAndMetadata);
|
| + } else if (matches(Keyword.EXPORT)) {
|
| + return parseExportDirective(commentAndMetadata);
|
| + } else if (matches(Keyword.LIBRARY)) {
|
| + return parseLibraryDirective(commentAndMetadata);
|
| + } else if (matches(Keyword.PART)) {
|
| + return parsePartDirective(commentAndMetadata);
|
| + } else {
|
| + return null;
|
| + }
|
| + }
|
| + /**
|
| + * Parse a documentation comment.
|
| + * <pre>
|
| + * documentationComment ::=
|
| + * multiLineComment?
|
| + * | singleLineComment
|
| + * </pre>
|
| + * @return the documentation comment that was parsed, or {@code null} if there was no comment
|
| + */
|
| + Comment parseDocumentationComment() {
|
| + List<Token> commentTokens = new List<Token>();
|
| + Token commentToken = _currentToken.precedingComments;
|
| + while (commentToken != null) {
|
| + if (commentToken.type == TokenType.SINGLE_LINE_COMMENT) {
|
| + if (commentToken.lexeme.startsWith("///")) {
|
| + if (commentTokens.length == 1 && commentTokens[0].lexeme.startsWith("/**")) {
|
| + commentTokens.clear();
|
| + }
|
| + commentTokens.add(commentToken);
|
| + }
|
| + } else {
|
| + if (commentToken.lexeme.startsWith("/**")) {
|
| + commentTokens.clear();
|
| + commentTokens.add(commentToken);
|
| + }
|
| + }
|
| + commentToken = commentToken.next;
|
| + }
|
| + if (commentTokens.isEmpty) {
|
| + return null;
|
| + }
|
| + List<Token> tokens = new List.from(commentTokens);
|
| + List<CommentReference> references = parseCommentReferences(tokens);
|
| + return Comment.createDocumentationComment2(tokens, references);
|
| + }
|
| + /**
|
| + * Parse a do statement.
|
| + * <pre>
|
| + * doStatement ::=
|
| + * 'do' statement 'while' '(' expression ')' ';'
|
| + * </pre>
|
| + * @return the do statement that was parsed
|
| + */
|
| + Statement parseDoStatement() {
|
| + bool wasInLoop = _inLoop;
|
| + _inLoop = true;
|
| + try {
|
| + Token doKeyword = expect(Keyword.DO);
|
| + Statement body = parseStatement2();
|
| + Token whileKeyword = expect(Keyword.WHILE);
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + Expression condition = parseExpression2();
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new DoStatement(doKeyword, body, whileKeyword, leftParenthesis, condition, rightParenthesis, semicolon);
|
| + } finally {
|
| + _inLoop = wasInLoop;
|
| + }
|
| + }
|
| + /**
|
| + * Parse an empty statement.
|
| + * <pre>
|
| + * emptyStatement ::=
|
| + * ';'
|
| + * </pre>
|
| + * @return the empty statement that was parsed
|
| + */
|
| + Statement parseEmptyStatement() => new EmptyStatement(andAdvance);
|
| + /**
|
| + * Parse an equality expression.
|
| + * <pre>
|
| + * equalityExpression ::=
|
| + * relationalExpression (equalityOperator relationalExpression)?
|
| + * | 'super' equalityOperator relationalExpression
|
| + * </pre>
|
| + * @return the equality expression that was parsed
|
| + */
|
| + Expression parseEqualityExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && _currentToken.next.type.isEqualityOperator()) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseRelationalExpression();
|
| + }
|
| + while (_currentToken.type.isEqualityOperator()) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseRelationalExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse an export directive.
|
| + * <pre>
|
| + * exportDirective ::=
|
| + * metadata 'export' stringLiteral combinator*';'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the directive
|
| + * @return the export directive that was parsed
|
| + */
|
| + ExportDirective parseExportDirective(CommentAndMetadata commentAndMetadata) {
|
| + Token exportKeyword = expect(Keyword.EXPORT);
|
| + StringLiteral libraryUri = parseStringLiteral();
|
| + List<Combinator> combinators = parseCombinators();
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new ExportDirective(commentAndMetadata.comment, commentAndMetadata.metadata, exportKeyword, libraryUri, combinators, semicolon);
|
| + }
|
| + /**
|
| + * Parse an expression that does not contain any cascades.
|
| + * <pre>
|
| + * expression ::=
|
| + * assignableExpression assignmentOperator expression
|
| + * | conditionalExpression cascadeSection
|
| + * | throwExpression
|
| + * </pre>
|
| + * @return the expression that was parsed
|
| + */
|
| + Expression parseExpression2() {
|
| + if (matches(Keyword.THROW)) {
|
| + return parseThrowExpression();
|
| + }
|
| + Expression expression = parseConditionalExpression();
|
| + TokenType tokenType = _currentToken.type;
|
| + if (tokenType == TokenType.PERIOD_PERIOD) {
|
| + List<Expression> cascadeSections = new List<Expression>();
|
| + while (tokenType == TokenType.PERIOD_PERIOD) {
|
| + Expression section = parseCascadeSection();
|
| + if (section != null) {
|
| + cascadeSections.add(section);
|
| + }
|
| + tokenType = _currentToken.type;
|
| + }
|
| + return new CascadeExpression(expression, cascadeSections);
|
| + } else if (tokenType.isAssignmentOperator()) {
|
| + Token operator = andAdvance;
|
| + ensureAssignable(expression);
|
| + return new AssignmentExpression(expression, operator, parseExpression2());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a list of expressions.
|
| + * <pre>
|
| + * expressionList ::=
|
| + * expression (',' expression)
|
| + * </pre>
|
| + * @return the expression that was parsed
|
| + */
|
| + List<Expression> parseExpressionList() {
|
| + List<Expression> expressions = new List<Expression>();
|
| + expressions.add(parseExpression2());
|
| + while (optional(TokenType.COMMA)) {
|
| + expressions.add(parseExpression2());
|
| + }
|
| + return expressions;
|
| + }
|
| + /**
|
| + * Parse an expression that does not contain any cascades.
|
| + * <pre>
|
| + * expressionWithoutCascade ::=
|
| + * assignableExpression assignmentOperator expressionWithoutCascade
|
| + * | conditionalExpression
|
| + * | throwExpressionWithoutCascade
|
| + * </pre>
|
| + * @return the expression that was parsed
|
| + */
|
| + Expression parseExpressionWithoutCascade() {
|
| + if (matches(Keyword.THROW)) {
|
| + return parseThrowExpressionWithoutCascade();
|
| + }
|
| + Expression expression = parseConditionalExpression();
|
| + if (_currentToken.type.isAssignmentOperator()) {
|
| + Token operator = andAdvance;
|
| + ensureAssignable(expression);
|
| + expression = new AssignmentExpression(expression, operator, parseExpressionWithoutCascade());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a class extends clause.
|
| + * <pre>
|
| + * classExtendsClause ::=
|
| + * 'extends' type
|
| + * </pre>
|
| + * @return the class extends clause that was parsed
|
| + */
|
| + ExtendsClause parseExtendsClause() {
|
| + Token keyword = expect(Keyword.EXTENDS);
|
| + TypeName superclass = parseTypeName();
|
| + return new ExtendsClause(keyword, superclass);
|
| + }
|
| + /**
|
| + * Parse the 'final', 'const', 'var' or type preceding a variable declaration.
|
| + * <pre>
|
| + * finalConstVarOrType ::=
|
| + * | 'final' type?
|
| + * | 'const' type?
|
| + * | 'var'
|
| + * | type
|
| + * </pre>
|
| + * @param optional {@code true} if the keyword and type are optional
|
| + * @return the 'final', 'const', 'var' or type that was parsed
|
| + */
|
| + FinalConstVarOrType parseFinalConstVarOrType(bool optional) {
|
| + Token keyword = null;
|
| + TypeName type = null;
|
| + if (matches(Keyword.FINAL) || matches(Keyword.CONST)) {
|
| + keyword = andAdvance;
|
| + if (matchesIdentifier2(peek()) || matches4(peek(), TokenType.LT) || matches3(peek(), Keyword.THIS)) {
|
| + type = parseTypeName();
|
| + }
|
| + } else if (matches(Keyword.VAR)) {
|
| + keyword = andAdvance;
|
| + } else {
|
| + if (matchesIdentifier2(peek()) || matches4(peek(), TokenType.LT) || matches3(peek(), Keyword.THIS) || (matches4(peek(), TokenType.PERIOD) && matchesIdentifier2(peek2(2)) && (matchesIdentifier2(peek2(3)) || matches4(peek2(3), TokenType.LT) || matches3(peek2(3), Keyword.THIS)))) {
|
| + type = parseReturnType();
|
| + } else if (!optional) {
|
| + reportError3(ParserErrorCode.MISSING_CONST_FINAL_VAR_OR_TYPE, []);
|
| + }
|
| + }
|
| + return new FinalConstVarOrType(keyword, type);
|
| + }
|
| + /**
|
| + * Parse a formal parameter. At most one of {@code isOptional} and {@code isNamed} can be{@code true}.
|
| + * <pre>
|
| + * defaultFormalParameter ::=
|
| + * normalFormalParameter ('=' expression)?
|
| + * defaultNamedParameter ::=
|
| + * normalFormalParameter (':' expression)?
|
| + * </pre>
|
| + * @param kind the kind of parameter being expected based on the presence or absence of group
|
| + * delimiters
|
| + * @return the formal parameter that was parsed
|
| + */
|
| + FormalParameter parseFormalParameter(ParameterKind kind) {
|
| + NormalFormalParameter parameter = parseNormalFormalParameter();
|
| + if (matches5(TokenType.EQ)) {
|
| + Token seperator = andAdvance;
|
| + Expression defaultValue = parseExpression2();
|
| + if (kind == ParameterKind.NAMED) {
|
| + reportError4(ParserErrorCode.WRONG_SEPARATOR_FOR_NAMED_PARAMETER, seperator, []);
|
| + } else if (kind == ParameterKind.REQUIRED) {
|
| + reportError(ParserErrorCode.POSITIONAL_PARAMETER_OUTSIDE_GROUP, parameter, []);
|
| + }
|
| + return new DefaultFormalParameter(parameter, kind, seperator, defaultValue);
|
| + } else if (matches5(TokenType.COLON)) {
|
| + Token seperator = andAdvance;
|
| + Expression defaultValue = parseExpression2();
|
| + if (kind == ParameterKind.POSITIONAL) {
|
| + reportError4(ParserErrorCode.WRONG_SEPARATOR_FOR_POSITIONAL_PARAMETER, seperator, []);
|
| + } else if (kind == ParameterKind.REQUIRED) {
|
| + reportError(ParserErrorCode.NAMED_PARAMETER_OUTSIDE_GROUP, parameter, []);
|
| + }
|
| + return new DefaultFormalParameter(parameter, kind, seperator, defaultValue);
|
| + } else if (kind != ParameterKind.REQUIRED) {
|
| + return new DefaultFormalParameter(parameter, kind, null, null);
|
| + }
|
| + return parameter;
|
| + }
|
| + /**
|
| + * Parse a list of formal parameters.
|
| + * <pre>
|
| + * formalParameterList ::=
|
| + * '(' ')'
|
| + * | '(' normalFormalParameters (',' optionalFormalParameters)? ')'
|
| + * | '(' optionalFormalParameters ')'
|
| + * normalFormalParameters ::=
|
| + * normalFormalParameter (',' normalFormalParameter)
|
| + * optionalFormalParameters ::=
|
| + * optionalPositionalFormalParameters
|
| + * | namedFormalParameters
|
| + * optionalPositionalFormalParameters ::=
|
| + * '[' defaultFormalParameter (',' defaultFormalParameter)* ']'
|
| + * namedFormalParameters ::=
|
| + * '{' defaultNamedParameter (',' defaultNamedParameter)* '}'
|
| + * </pre>
|
| + * @return the formal parameters that were parsed
|
| + */
|
| + FormalParameterList parseFormalParameterList() {
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + if (matches5(TokenType.CLOSE_PAREN)) {
|
| + return new FormalParameterList(leftParenthesis, null, null, null, andAdvance);
|
| + }
|
| + List<FormalParameter> parameters = new List<FormalParameter>();
|
| + List<FormalParameter> normalParameters = new List<FormalParameter>();
|
| + List<FormalParameter> positionalParameters = new List<FormalParameter>();
|
| + List<FormalParameter> namedParameters = new List<FormalParameter>();
|
| + List<FormalParameter> currentParameters = normalParameters;
|
| + Token leftSquareBracket = null;
|
| + Token rightSquareBracket = null;
|
| + Token leftCurlyBracket = null;
|
| + Token rightCurlyBracket = null;
|
| + ParameterKind kind = ParameterKind.REQUIRED;
|
| + bool firstParameter = true;
|
| + bool reportedMuliplePositionalGroups = false;
|
| + bool reportedMulipleNamedGroups = false;
|
| + bool reportedMixedGroups = false;
|
| + Token initialToken = null;
|
| + do {
|
| + if (firstParameter) {
|
| + firstParameter = false;
|
| + } else if (!optional(TokenType.COMMA)) {
|
| + if ((leftParenthesis as BeginToken).endToken != null) {
|
| + reportError3(ParserErrorCode.EXPECTED_TOKEN, [TokenType.COMMA.lexeme]);
|
| + } else {
|
| + break;
|
| + }
|
| + }
|
| + initialToken = _currentToken;
|
| + if (matches5(TokenType.OPEN_SQUARE_BRACKET)) {
|
| + if (leftSquareBracket != null && !reportedMuliplePositionalGroups) {
|
| + reportError3(ParserErrorCode.MULTIPLE_POSITIONAL_PARAMETER_GROUPS, []);
|
| + reportedMuliplePositionalGroups = true;
|
| + }
|
| + if (leftCurlyBracket != null && !reportedMixedGroups) {
|
| + reportError3(ParserErrorCode.MIXED_PARAMETER_GROUPS, []);
|
| + reportedMixedGroups = true;
|
| + }
|
| + leftSquareBracket = andAdvance;
|
| + currentParameters = positionalParameters;
|
| + kind = ParameterKind.POSITIONAL;
|
| + } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + if (leftCurlyBracket != null && !reportedMulipleNamedGroups) {
|
| + reportError3(ParserErrorCode.MULTIPLE_NAMED_PARAMETER_GROUPS, []);
|
| + reportedMulipleNamedGroups = true;
|
| + }
|
| + if (leftSquareBracket != null && !reportedMixedGroups) {
|
| + reportError3(ParserErrorCode.MIXED_PARAMETER_GROUPS, []);
|
| + reportedMixedGroups = true;
|
| + }
|
| + leftCurlyBracket = andAdvance;
|
| + currentParameters = namedParameters;
|
| + kind = ParameterKind.NAMED;
|
| + }
|
| + FormalParameter parameter = parseFormalParameter(kind);
|
| + parameters.add(parameter);
|
| + currentParameters.add(parameter);
|
| + if (matches5(TokenType.CLOSE_SQUARE_BRACKET)) {
|
| + rightSquareBracket = andAdvance;
|
| + currentParameters = normalParameters;
|
| + if (leftSquareBracket == null) {
|
| + }
|
| + kind = ParameterKind.REQUIRED;
|
| + } else if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
|
| + rightCurlyBracket = andAdvance;
|
| + currentParameters = normalParameters;
|
| + if (leftCurlyBracket == null) {
|
| + }
|
| + kind = ParameterKind.REQUIRED;
|
| + }
|
| + } while (!matches5(TokenType.CLOSE_PAREN) && initialToken != _currentToken);
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + if (leftSquareBracket != null && rightSquareBracket == null) {
|
| + }
|
| + if (leftCurlyBracket != null && rightCurlyBracket == null) {
|
| + }
|
| + if (leftSquareBracket == null) {
|
| + leftSquareBracket = leftCurlyBracket;
|
| + }
|
| + if (rightSquareBracket == null) {
|
| + rightSquareBracket = rightCurlyBracket;
|
| + }
|
| + return new FormalParameterList(leftParenthesis, parameters, leftSquareBracket, rightSquareBracket, rightParenthesis);
|
| + }
|
| + /**
|
| + * Parse a for statement.
|
| + * <pre>
|
| + * forStatement ::=
|
| + * 'for' '(' forLoopParts ')' statement
|
| + * forLoopParts ::=
|
| + * forInitializerStatement expression? ';' expressionList?
|
| + * | declaredIdentifier 'in' expression
|
| + * | identifier 'in' expression
|
| + * forInitializerStatement ::=
|
| + * variableDeclarationList ';'
|
| + * | expression? ';'
|
| + * </pre>
|
| + * @return the for statement that was parsed
|
| + */
|
| + Statement parseForStatement() {
|
| + bool wasInLoop = _inLoop;
|
| + _inLoop = true;
|
| + try {
|
| + Token forKeyword = expect(Keyword.FOR);
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + VariableDeclarationList variableList = null;
|
| + Expression initialization = null;
|
| + if (!matches5(TokenType.SEMICOLON)) {
|
| + if (matchesIdentifier() && matches3(peek(), Keyword.IN)) {
|
| + List<VariableDeclaration> variables = new List<VariableDeclaration>();
|
| + SimpleIdentifier variableName = parseSimpleIdentifier();
|
| + variables.add(new VariableDeclaration(null, null, variableName, null, null));
|
| + variableList = new VariableDeclarationList(null, null, variables);
|
| + } else if (isInitializedVariableDeclaration()) {
|
| + variableList = parseVariableDeclarationList();
|
| + } else {
|
| + initialization = parseExpression2();
|
| + }
|
| + if (matches(Keyword.IN)) {
|
| + SimpleFormalParameter loopParameter = null;
|
| + if (variableList == null) {
|
| + reportError3(ParserErrorCode.MISSING_VARIABLE_IN_FOR_EACH, []);
|
| + } else {
|
| + NodeList<VariableDeclaration> variables5 = variableList.variables;
|
| + if (variables5.length > 1) {
|
| + reportError3(ParserErrorCode.MULTIPLE_VARIABLES_IN_FOR_EACH, [variables5.length.toString()]);
|
| + }
|
| + VariableDeclaration variable = variables5[0];
|
| + if (variable.initializer != null) {
|
| + reportError3(ParserErrorCode.INITIALIZED_VARIABLE_IN_FOR_EACH, []);
|
| + }
|
| + loopParameter = new SimpleFormalParameter(null, null, variableList.keyword, variableList.type, variable.name);
|
| + }
|
| + Token inKeyword = expect(Keyword.IN);
|
| + Expression iterator = parseExpression2();
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + Statement body = parseStatement2();
|
| + return new ForEachStatement(forKeyword, leftParenthesis, loopParameter, inKeyword, iterator, rightParenthesis, body);
|
| + }
|
| + }
|
| + Token leftSeparator = expect2(TokenType.SEMICOLON);
|
| + Expression condition = null;
|
| + if (!matches5(TokenType.SEMICOLON)) {
|
| + condition = parseExpression2();
|
| + }
|
| + Token rightSeparator = expect2(TokenType.SEMICOLON);
|
| + List<Expression> updaters = null;
|
| + if (!matches5(TokenType.CLOSE_PAREN)) {
|
| + updaters = parseExpressionList();
|
| + }
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + Statement body = parseStatement2();
|
| + return new ForStatement(forKeyword, leftParenthesis, variableList, initialization, leftSeparator, condition, rightSeparator, updaters, rightParenthesis, body);
|
| + } finally {
|
| + _inLoop = wasInLoop;
|
| + }
|
| + }
|
| + /**
|
| + * Parse a function body.
|
| + * <pre>
|
| + * functionBody ::=
|
| + * '=>' expression ';'
|
| + * | block
|
| + * functionExpressionBody ::=
|
| + * '=>' expression
|
| + * | block
|
| + * </pre>
|
| + * @param mayBeEmpty {@code true} if the function body is allowed to be empty
|
| + * @param inExpression {@code true} if the function body is being parsed as part of an expression
|
| + * and therefore does not have a terminating semicolon
|
| + * @return the function body that was parsed
|
| + */
|
| + FunctionBody parseFunctionBody(bool mayBeEmpty, bool inExpression) {
|
| + bool wasInLoop = _inLoop;
|
| + bool wasInSwitch = _inSwitch;
|
| + _inLoop = false;
|
| + _inSwitch = false;
|
| + try {
|
| + if (matches5(TokenType.SEMICOLON)) {
|
| + if (!mayBeEmpty) {
|
| + reportError3(ParserErrorCode.MISSING_FUNCTION_BODY, []);
|
| + }
|
| + return new EmptyFunctionBody(andAdvance);
|
| + } else if (matches5(TokenType.FUNCTION)) {
|
| + Token functionDefinition = andAdvance;
|
| + Expression expression = parseExpression2();
|
| + Token semicolon = null;
|
| + if (!inExpression) {
|
| + semicolon = expect2(TokenType.SEMICOLON);
|
| + }
|
| + return new ExpressionFunctionBody(functionDefinition, expression, semicolon);
|
| + } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + return new BlockFunctionBody(parseBlock());
|
| + } else if (matches2("native")) {
|
| + advance();
|
| + parseStringLiteral();
|
| + return new EmptyFunctionBody(andAdvance);
|
| + } else {
|
| + reportError3(ParserErrorCode.MISSING_FUNCTION_BODY, []);
|
| + return new EmptyFunctionBody(createSyntheticToken(TokenType.SEMICOLON));
|
| + }
|
| + } finally {
|
| + _inLoop = wasInLoop;
|
| + _inSwitch = wasInSwitch;
|
| + }
|
| + }
|
| + /**
|
| + * Parse a function declaration.
|
| + * <pre>
|
| + * functionDeclaration ::=
|
| + * functionSignature functionBody
|
| + * | returnType? getOrSet identifier formalParameterList functionBody
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param externalKeyword the 'external' keyword, or {@code null} if the function is not external
|
| + * @param returnType the return type, or {@code null} if there is no return type
|
| + * @param isStatement {@code true} if the function declaration is being parsed as a statement
|
| + * @return the function declaration that was parsed
|
| + */
|
| + FunctionDeclaration parseFunctionDeclaration(CommentAndMetadata commentAndMetadata, Token externalKeyword, TypeName returnType, bool isStatement) {
|
| + Token keyword = null;
|
| + bool isGetter = false;
|
| + if (matches(Keyword.GET) && !matches4(peek(), TokenType.OPEN_PAREN)) {
|
| + keyword = andAdvance;
|
| + isGetter = true;
|
| + } else if (matches(Keyword.SET) && !matches4(peek(), TokenType.OPEN_PAREN)) {
|
| + keyword = andAdvance;
|
| + }
|
| + SimpleIdentifier name = parseSimpleIdentifier();
|
| + FormalParameterList parameters = null;
|
| + if (!isGetter) {
|
| + if (matches5(TokenType.OPEN_PAREN)) {
|
| + parameters = parseFormalParameterList();
|
| + validateFormalParameterList(parameters);
|
| + } else {
|
| + reportError3(ParserErrorCode.MISSING_FUNCTION_PARAMETERS, []);
|
| + }
|
| + } else if (matches5(TokenType.OPEN_PAREN)) {
|
| + reportError3(ParserErrorCode.GETTER_WITH_PARAMETERS, []);
|
| + parseFormalParameterList();
|
| + }
|
| + FunctionBody body = null;
|
| + if (externalKeyword == null) {
|
| + body = parseFunctionBody(false, false);
|
| + }
|
| + if (!isStatement && matches5(TokenType.SEMICOLON)) {
|
| + reportError3(ParserErrorCode.UNEXPECTED_TOKEN, [_currentToken.lexeme]);
|
| + advance();
|
| + }
|
| + return new FunctionDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, returnType, keyword, name, new FunctionExpression(parameters, body));
|
| + }
|
| + /**
|
| + * Parse a function declaration statement.
|
| + * <pre>
|
| + * functionDeclarationStatement ::=
|
| + * functionSignature functionBody
|
| + * </pre>
|
| + * @return the function declaration statement that was parsed
|
| + */
|
| + Statement parseFunctionDeclarationStatement() => parseFunctionDeclarationStatement2(parseCommentAndMetadata(), parseOptionalReturnType());
|
| + /**
|
| + * Parse a function declaration statement.
|
| + * <pre>
|
| + * functionDeclarationStatement ::=
|
| + * functionSignature functionBody
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param returnType the return type, or {@code null} if there is no return type
|
| + * @return the function declaration statement that was parsed
|
| + */
|
| + Statement parseFunctionDeclarationStatement2(CommentAndMetadata commentAndMetadata, TypeName returnType) => new FunctionDeclarationStatement(parseFunctionDeclaration(commentAndMetadata, null, returnType, true));
|
| + /**
|
| + * Parse a function expression.
|
| + * <pre>
|
| + * functionExpression ::=
|
| + * (returnType? identifier)? formalParameterList functionExpressionBody
|
| + * </pre>
|
| + * @return the function expression that was parsed
|
| + */
|
| + FunctionExpression parseFunctionExpression() {
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + validateFormalParameterList(parameters);
|
| + FunctionBody body = parseFunctionBody(false, true);
|
| + return new FunctionExpression(parameters, body);
|
| + }
|
| + /**
|
| + * Parse a function type alias.
|
| + * <pre>
|
| + * functionTypeAlias ::=
|
| + * functionPrefix typeParameterList? formalParameterList ';'
|
| + * functionPrefix ::=
|
| + * returnType? name
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the member
|
| + * @param keyword the token representing the 'typedef' keyword
|
| + * @return the function type alias that was parsed
|
| + */
|
| + FunctionTypeAlias parseFunctionTypeAlias(CommentAndMetadata commentAndMetadata, Token keyword) {
|
| + TypeName returnType = null;
|
| + if (hasReturnTypeInTypeAlias()) {
|
| + returnType = parseReturnType();
|
| + }
|
| + SimpleIdentifier name = parseSimpleIdentifier2(ParserErrorCode.BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME);
|
| + TypeParameterList typeParameters = null;
|
| + if (matches5(TokenType.LT)) {
|
| + typeParameters = parseTypeParameterList();
|
| + }
|
| + if (matches5(TokenType.SEMICOLON)) {
|
| + reportError3(ParserErrorCode.MISSING_TYPEDEF_PARAMETERS, []);
|
| + FormalParameterList parameters = new FormalParameterList(createSyntheticToken(TokenType.OPEN_PAREN), null, null, null, createSyntheticToken(TokenType.CLOSE_PAREN));
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new FunctionTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
|
| + } else if (!matches5(TokenType.OPEN_PAREN)) {
|
| + return null;
|
| + }
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + validateFormalParameterList(parameters);
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new FunctionTypeAlias(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, returnType, name, typeParameters, parameters, semicolon);
|
| + }
|
| + /**
|
| + * Parse a getter.
|
| + * <pre>
|
| + * getter ::=
|
| + * getterSignature functionBody?
|
| + * getterSignature ::=
|
| + * 'external'? 'static'? returnType? 'get' identifier
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param externalKeyword the 'external' token
|
| + * @param staticKeyword the static keyword, or {@code null} if the getter is not static
|
| + * @param the return type that has already been parsed, or {@code null} if there was no return
|
| + * type
|
| + * @return the getter that was parsed
|
| + */
|
| + MethodDeclaration parseGetter(CommentAndMetadata commentAndMetadata, Token externalKeyword, Token staticKeyword, TypeName returnType) {
|
| + Token propertyKeyword = expect(Keyword.GET);
|
| + SimpleIdentifier name = parseSimpleIdentifier();
|
| + if (matches5(TokenType.OPEN_PAREN) && matches4(peek(), TokenType.CLOSE_PAREN)) {
|
| + reportError3(ParserErrorCode.GETTER_WITH_PARAMETERS, []);
|
| + advance();
|
| + advance();
|
| + }
|
| + FunctionBody body = parseFunctionBody(true, false);
|
| + if (externalKeyword != null && body is! EmptyFunctionBody) {
|
| + reportError3(ParserErrorCode.EXTERNAL_GETTER_WITH_BODY, []);
|
| + }
|
| + return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, propertyKeyword, null, name, null, body);
|
| + }
|
| + /**
|
| + * Parse a list of identifiers.
|
| + * <pre>
|
| + * identifierList ::=
|
| + * identifier (',' identifier)
|
| + * </pre>
|
| + * @return the list of identifiers that were parsed
|
| + */
|
| + List<SimpleIdentifier> parseIdentifierList() {
|
| + List<SimpleIdentifier> identifiers = new List<SimpleIdentifier>();
|
| + identifiers.add(parseSimpleIdentifier());
|
| + while (matches5(TokenType.COMMA)) {
|
| + advance();
|
| + identifiers.add(parseSimpleIdentifier());
|
| + }
|
| + return identifiers;
|
| + }
|
| + /**
|
| + * Parse an if statement.
|
| + * <pre>
|
| + * ifStatement ::=
|
| + * 'if' '(' expression ')' statement ('else' statement)?
|
| + * </pre>
|
| + * @return the if statement that was parsed
|
| + */
|
| + Statement parseIfStatement() {
|
| + Token ifKeyword = expect(Keyword.IF);
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + Expression condition = parseExpression2();
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + Statement thenStatement = parseStatement2();
|
| + Token elseKeyword = null;
|
| + Statement elseStatement = null;
|
| + if (matches(Keyword.ELSE)) {
|
| + elseKeyword = andAdvance;
|
| + elseStatement = parseStatement2();
|
| + }
|
| + return new IfStatement(ifKeyword, leftParenthesis, condition, rightParenthesis, thenStatement, elseKeyword, elseStatement);
|
| + }
|
| + /**
|
| + * Parse an implements clause.
|
| + * <pre>
|
| + * implementsClause ::=
|
| + * 'implements' type (',' type)
|
| + * </pre>
|
| + * @return the implements clause that was parsed
|
| + */
|
| + ImplementsClause parseImplementsClause() {
|
| + Token keyword = expect(Keyword.IMPLEMENTS);
|
| + List<TypeName> interfaces = new List<TypeName>();
|
| + interfaces.add(parseTypeName());
|
| + while (optional(TokenType.COMMA)) {
|
| + interfaces.add(parseTypeName());
|
| + }
|
| + return new ImplementsClause(keyword, interfaces);
|
| + }
|
| + /**
|
| + * Parse an import directive.
|
| + * <pre>
|
| + * importDirective ::=
|
| + * metadata 'import' stringLiteral ('as' identifier)? combinator*';'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the directive
|
| + * @return the import directive that was parsed
|
| + */
|
| + ImportDirective parseImportDirective(CommentAndMetadata commentAndMetadata) {
|
| + Token importKeyword = expect(Keyword.IMPORT);
|
| + StringLiteral libraryUri = parseStringLiteral();
|
| + Token asToken = null;
|
| + SimpleIdentifier prefix = null;
|
| + if (matches(Keyword.AS)) {
|
| + asToken = andAdvance;
|
| + prefix = parseSimpleIdentifier();
|
| + }
|
| + List<Combinator> combinators = parseCombinators();
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new ImportDirective(commentAndMetadata.comment, commentAndMetadata.metadata, importKeyword, libraryUri, asToken, prefix, combinators, semicolon);
|
| + }
|
| + /**
|
| + * Parse a list of initialized identifiers.
|
| + * <pre>
|
| + * ?? ::=
|
| + * 'static'? ('var' | type) initializedIdentifierList ';'
|
| + * | 'final' type? initializedIdentifierList ';'
|
| + * initializedIdentifierList ::=
|
| + * initializedIdentifier (',' initializedIdentifier)
|
| + * initializedIdentifier ::=
|
| + * identifier ('=' expression)?
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param staticKeyword the static keyword, or {@code null} if the getter is not static
|
| + * @param keyword the token representing the 'final', 'const' or 'var' keyword, or {@code null} if
|
| + * there is no keyword
|
| + * @param type the type that has already been parsed, or {@code null} if 'var' was provided
|
| + * @return the getter that was parsed
|
| + */
|
| + FieldDeclaration parseInitializedIdentifierList(CommentAndMetadata commentAndMetadata, Token staticKeyword, Token keyword, TypeName type) {
|
| + VariableDeclarationList fieldList = parseVariableDeclarationList2(keyword, type);
|
| + return new FieldDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, staticKeyword, fieldList, expect2(TokenType.SEMICOLON));
|
| + }
|
| + /**
|
| + * Parse an instance creation expression.
|
| + * <pre>
|
| + * instanceCreationExpression ::=
|
| + * ('new' | 'const') type ('.' identifier)? argumentList
|
| + * </pre>
|
| + * @param keyword the 'new' or 'const' keyword that introduces the expression
|
| + * @return the instance creation expression that was parsed
|
| + */
|
| + InstanceCreationExpression parseInstanceCreationExpression(Token keyword) {
|
| + ConstructorName constructorName = parseConstructorName();
|
| + ArgumentList argumentList = parseArgumentList();
|
| + return new InstanceCreationExpression(keyword, constructorName, argumentList);
|
| + }
|
| + /**
|
| + * Parse a library directive.
|
| + * <pre>
|
| + * libraryDirective ::=
|
| + * metadata 'library' identifier ';'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the directive
|
| + * @return the library directive that was parsed
|
| + */
|
| + LibraryDirective parseLibraryDirective(CommentAndMetadata commentAndMetadata) {
|
| + Token keyword = expect(Keyword.LIBRARY);
|
| + LibraryIdentifier libraryName = parseLibraryName(ParserErrorCode.MISSING_NAME_IN_LIBRARY_DIRECTIVE, keyword);
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new LibraryDirective(commentAndMetadata.comment, commentAndMetadata.metadata, keyword, libraryName, semicolon);
|
| + }
|
| + /**
|
| + * Parse a library identifier.
|
| + * <pre>
|
| + * libraryIdentifier ::=
|
| + * identifier ('.' identifier)
|
| + * </pre>
|
| + * @return the library identifier that was parsed
|
| + */
|
| + LibraryIdentifier parseLibraryIdentifier() {
|
| + List<SimpleIdentifier> components = new List<SimpleIdentifier>();
|
| + components.add(parseSimpleIdentifier());
|
| + while (matches5(TokenType.PERIOD)) {
|
| + advance();
|
| + components.add(parseSimpleIdentifier());
|
| + }
|
| + return new LibraryIdentifier(components);
|
| + }
|
| + /**
|
| + * Parse a library name.
|
| + * <pre>
|
| + * libraryName ::=
|
| + * libraryIdentifier
|
| + * </pre>
|
| + * @param missingNameError the error code to be used if the library name is missing
|
| + * @param missingNameToken the token associated with the error produced if the library name is
|
| + * missing
|
| + * @return the library name that was parsed
|
| + */
|
| + LibraryIdentifier parseLibraryName(ParserErrorCode missingNameError, Token missingNameToken) {
|
| + if (matchesIdentifier()) {
|
| + return parseLibraryIdentifier();
|
| + } else if (matches5(TokenType.STRING)) {
|
| + StringLiteral string = parseStringLiteral();
|
| + reportError(ParserErrorCode.NON_IDENTIFIER_LIBRARY_NAME, string, []);
|
| + } else {
|
| + reportError4(missingNameError, missingNameToken, []);
|
| + }
|
| + List<SimpleIdentifier> components = new List<SimpleIdentifier>();
|
| + components.add(createSyntheticIdentifier());
|
| + return new LibraryIdentifier(components);
|
| + }
|
| + /**
|
| + * Parse a list literal.
|
| + * <pre>
|
| + * listLiteral ::=
|
| + * 'const'? typeArguments? '[' (expressionList ','?)? ']'
|
| + * </pre>
|
| + * @param modifier the 'const' modifier appearing before the literal, or {@code null} if there is
|
| + * no modifier
|
| + * @param typeArguments the type arguments appearing before the literal, or {@code null} if there
|
| + * are no type arguments
|
| + * @return the list literal that was parsed
|
| + */
|
| + ListLiteral parseListLiteral(Token modifier, TypeArgumentList typeArguments) {
|
| + if (matches5(TokenType.INDEX)) {
|
| + BeginToken leftBracket = new BeginToken(TokenType.OPEN_SQUARE_BRACKET, _currentToken.offset);
|
| + Token rightBracket = new Token(TokenType.CLOSE_SQUARE_BRACKET, _currentToken.offset + 1);
|
| + leftBracket.endToken2 = rightBracket;
|
| + rightBracket.setNext(_currentToken.next);
|
| + leftBracket.setNext(rightBracket);
|
| + _currentToken.previous.setNext(leftBracket);
|
| + _currentToken = _currentToken.next;
|
| + return new ListLiteral(modifier, typeArguments, leftBracket, null, rightBracket);
|
| + }
|
| + Token leftBracket = expect2(TokenType.OPEN_SQUARE_BRACKET);
|
| + if (matches5(TokenType.CLOSE_SQUARE_BRACKET)) {
|
| + return new ListLiteral(modifier, typeArguments, leftBracket, null, andAdvance);
|
| + }
|
| + List<Expression> elements = new List<Expression>();
|
| + elements.add(parseExpression2());
|
| + while (optional(TokenType.COMMA)) {
|
| + if (matches5(TokenType.CLOSE_SQUARE_BRACKET)) {
|
| + return new ListLiteral(modifier, typeArguments, leftBracket, elements, andAdvance);
|
| + }
|
| + elements.add(parseExpression2());
|
| + }
|
| + Token rightBracket = expect2(TokenType.CLOSE_SQUARE_BRACKET);
|
| + return new ListLiteral(modifier, typeArguments, leftBracket, elements, rightBracket);
|
| + }
|
| + /**
|
| + * Parse a list or map literal.
|
| + * <pre>
|
| + * listOrMapLiteral ::=
|
| + * listLiteral
|
| + * | mapLiteral
|
| + * </pre>
|
| + * @param modifier the 'const' modifier appearing before the literal, or {@code null} if there is
|
| + * no modifier
|
| + * @return the list or map literal that was parsed
|
| + */
|
| + TypedLiteral parseListOrMapLiteral(Token modifier) {
|
| + TypeArgumentList typeArguments = null;
|
| + if (matches5(TokenType.LT)) {
|
| + typeArguments = parseTypeArgumentList();
|
| + }
|
| + if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + return parseMapLiteral(modifier, typeArguments);
|
| + } else if (matches5(TokenType.OPEN_SQUARE_BRACKET) || matches5(TokenType.INDEX)) {
|
| + return parseListLiteral(modifier, typeArguments);
|
| + }
|
| + reportError3(ParserErrorCode.EXPECTED_LIST_OR_MAP_LITERAL, []);
|
| + return new ListLiteral(modifier, typeArguments, createSyntheticToken(TokenType.OPEN_SQUARE_BRACKET), null, createSyntheticToken(TokenType.CLOSE_SQUARE_BRACKET));
|
| + }
|
| + /**
|
| + * Parse a logical and expression.
|
| + * <pre>
|
| + * logicalAndExpression ::=
|
| + * bitwiseOrExpression ('&&' bitwiseOrExpression)
|
| + * </pre>
|
| + * @return the logical and expression that was parsed
|
| + */
|
| + Expression parseLogicalAndExpression() {
|
| + Expression expression = parseBitwiseOrExpression();
|
| + while (matches5(TokenType.AMPERSAND_AMPERSAND)) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseBitwiseOrExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a logical or expression.
|
| + * <pre>
|
| + * logicalOrExpression ::=
|
| + * logicalAndExpression ('||' logicalAndExpression)
|
| + * </pre>
|
| + * @return the logical or expression that was parsed
|
| + */
|
| + Expression parseLogicalOrExpression() {
|
| + Expression expression = parseLogicalAndExpression();
|
| + while (matches5(TokenType.BAR_BAR)) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseLogicalAndExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a map literal.
|
| + * <pre>
|
| + * mapLiteral ::=
|
| + * 'const'? typeArguments? '{' (mapLiteralEntry (',' mapLiteralEntry)* ','?)? '}'
|
| + * </pre>
|
| + * @param modifier the 'const' modifier appearing before the literal, or {@code null} if there is
|
| + * no modifier
|
| + * @param typeArguments the type arguments that were declared, or {@code null} if there are no
|
| + * type arguments
|
| + * @return the map literal that was parsed
|
| + */
|
| + MapLiteral parseMapLiteral(Token modifier, TypeArgumentList typeArguments) {
|
| + Token leftBracket = expect2(TokenType.OPEN_CURLY_BRACKET);
|
| + List<MapLiteralEntry> entries = new List<MapLiteralEntry>();
|
| + if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
|
| + return new MapLiteral(modifier, typeArguments, leftBracket, entries, andAdvance);
|
| + }
|
| + entries.add(parseMapLiteralEntry());
|
| + while (optional(TokenType.COMMA)) {
|
| + if (matches5(TokenType.CLOSE_CURLY_BRACKET)) {
|
| + return new MapLiteral(modifier, typeArguments, leftBracket, entries, andAdvance);
|
| + }
|
| + entries.add(parseMapLiteralEntry());
|
| + }
|
| + Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
|
| + return new MapLiteral(modifier, typeArguments, leftBracket, entries, rightBracket);
|
| + }
|
| + /**
|
| + * Parse a map literal entry.
|
| + * <pre>
|
| + * mapLiteralEntry ::=
|
| + * stringLiteral ':' expression
|
| + * </pre>
|
| + * @return the map literal entry that was parsed
|
| + */
|
| + MapLiteralEntry parseMapLiteralEntry() {
|
| + StringLiteral key = parseStringLiteral();
|
| + Token separator = expect2(TokenType.COLON);
|
| + Expression value = parseExpression2();
|
| + return new MapLiteralEntry(key, separator, value);
|
| + }
|
| + /**
|
| + * Parse a method declaration.
|
| + * <pre>
|
| + * functionDeclaration ::=
|
| + * 'external'? 'static'? functionSignature functionBody
|
| + * | 'external'? functionSignature ';'
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param externalKeyword the 'external' token
|
| + * @param staticKeyword the static keyword, or {@code null} if the getter is not static
|
| + * @param returnType the return type of the method
|
| + * @return the method declaration that was parsed
|
| + */
|
| + MethodDeclaration parseMethodDeclaration(CommentAndMetadata commentAndMetadata, Token externalKeyword, Token staticKeyword, TypeName returnType) {
|
| + SimpleIdentifier methodName = parseSimpleIdentifier();
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + validateFormalParameterList(parameters);
|
| + return parseMethodDeclaration2(commentAndMetadata, externalKeyword, staticKeyword, returnType, methodName, parameters);
|
| + }
|
| + /**
|
| + * Parse a method declaration.
|
| + * <pre>
|
| + * functionDeclaration ::=
|
| + * ('external' 'static'?)? functionSignature functionBody
|
| + * | 'external'? functionSignature ';'
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param externalKeyword the 'external' token
|
| + * @param staticKeyword the static keyword, or {@code null} if the getter is not static
|
| + * @param returnType the return type of the method
|
| + * @param name the name of the method
|
| + * @param parameters the parameters to the method
|
| + * @return the method declaration that was parsed
|
| + */
|
| + MethodDeclaration parseMethodDeclaration2(CommentAndMetadata commentAndMetadata, Token externalKeyword, Token staticKeyword, TypeName returnType, SimpleIdentifier name, FormalParameterList parameters) {
|
| + FunctionBody body = parseFunctionBody(externalKeyword != null || staticKeyword == null, false);
|
| + if (externalKeyword != null) {
|
| + if (body is! EmptyFunctionBody) {
|
| + reportError(ParserErrorCode.EXTERNAL_METHOD_WITH_BODY, body, []);
|
| + }
|
| + } else if (staticKeyword != null) {
|
| + if (body is EmptyFunctionBody) {
|
| + reportError(ParserErrorCode.ABSTRACT_STATIC_METHOD, body, []);
|
| + }
|
| + }
|
| + return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, null, null, name, parameters, body);
|
| + }
|
| + /**
|
| + * Parse the modifiers preceding a declaration. This method allows the modifiers to appear in any
|
| + * order but does generate errors for duplicated modifiers. Checks for other problems, such as
|
| + * having the modifiers appear in the wrong order or specifying both 'const' and 'final', are
|
| + * reported in one of the methods whose name is prefixed with {@code validateModifiersFor}.
|
| + * <pre>
|
| + * modifiers ::=
|
| + * ('abstract' | 'const' | 'external' | 'factory' | 'final' | 'static' | 'var')
|
| + * </pre>
|
| + * @return the modifiers that were parsed
|
| + */
|
| + Modifiers parseModifiers() {
|
| + Modifiers modifiers = new Modifiers();
|
| + bool progress = true;
|
| + while (progress) {
|
| + if (matches(Keyword.ABSTRACT)) {
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.abstractKeyword4 = andAdvance;
|
| + }
|
| + } else if (matches(Keyword.CONST)) {
|
| + if (modifiers.constKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.constKeyword3 = andAdvance;
|
| + }
|
| + } else if (matches(Keyword.EXTERNAL)) {
|
| + if (modifiers.externalKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.externalKeyword5 = andAdvance;
|
| + }
|
| + } else if (matches(Keyword.FACTORY)) {
|
| + if (modifiers.factoryKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.factoryKeyword3 = andAdvance;
|
| + }
|
| + } else if (matches(Keyword.FINAL)) {
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.finalKeyword2 = andAdvance;
|
| + }
|
| + } else if (matches(Keyword.STATIC)) {
|
| + if (modifiers.staticKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.staticKeyword2 = andAdvance;
|
| + }
|
| + } else if (matches(Keyword.VAR)) {
|
| + if (modifiers.varKeyword != null) {
|
| + reportError3(ParserErrorCode.DUPLICATED_MODIFIER, [_currentToken.lexeme]);
|
| + advance();
|
| + } else {
|
| + modifiers.varKeyword2 = andAdvance;
|
| + }
|
| + } else {
|
| + progress = false;
|
| + }
|
| + }
|
| + return modifiers;
|
| + }
|
| + /**
|
| + * Parse a multiplicative expression.
|
| + * <pre>
|
| + * multiplicativeExpression ::=
|
| + * unaryExpression (multiplicativeOperator unaryExpression)
|
| + * | 'super' (multiplicativeOperator unaryExpression)+
|
| + * </pre>
|
| + * @return the multiplicative expression that was parsed
|
| + */
|
| + Expression parseMultiplicativeExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && _currentToken.next.type.isMultiplicativeOperator()) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseUnaryExpression();
|
| + }
|
| + while (_currentToken.type.isMultiplicativeOperator()) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseUnaryExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a new expression.
|
| + * <pre>
|
| + * newExpression ::=
|
| + * instanceCreationExpression
|
| + * </pre>
|
| + * @return the new expression that was parsed
|
| + */
|
| + InstanceCreationExpression parseNewExpression() => parseInstanceCreationExpression(expect(Keyword.NEW));
|
| + /**
|
| + * Parse a non-labeled statement.
|
| + * <pre>
|
| + * nonLabeledStatement ::=
|
| + * block
|
| + * | assertStatement
|
| + * | breakStatement
|
| + * | continueStatement
|
| + * | doStatement
|
| + * | forStatement
|
| + * | ifStatement
|
| + * | returnStatement
|
| + * | switchStatement
|
| + * | tryStatement
|
| + * | whileStatement
|
| + * | variableDeclarationList ';'
|
| + * | expressionStatement
|
| + * | functionSignature functionBody
|
| + * </pre>
|
| + * @return the non-labeled statement that was parsed
|
| + */
|
| + Statement parseNonLabeledStatement() {
|
| + CommentAndMetadata commentAndMetadata = parseCommentAndMetadata();
|
| + if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + if (matches4(peek(), TokenType.STRING)) {
|
| + Token afterString = skipStringLiteral(_currentToken.next);
|
| + if (afterString != null && afterString.type == TokenType.COLON) {
|
| + return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
|
| + }
|
| + }
|
| + return parseBlock();
|
| + } else if (matches5(TokenType.KEYWORD) && !(_currentToken as KeywordToken).keyword.isPseudoKeyword()) {
|
| + Keyword keyword29 = (_currentToken as KeywordToken).keyword;
|
| + if (keyword29 == Keyword.ASSERT) {
|
| + return parseAssertStatement();
|
| + } else if (keyword29 == Keyword.BREAK) {
|
| + return parseBreakStatement();
|
| + } else if (keyword29 == Keyword.CONTINUE) {
|
| + return parseContinueStatement();
|
| + } else if (keyword29 == Keyword.DO) {
|
| + return parseDoStatement();
|
| + } else if (keyword29 == Keyword.FOR) {
|
| + return parseForStatement();
|
| + } else if (keyword29 == Keyword.IF) {
|
| + return parseIfStatement();
|
| + } else if (keyword29 == Keyword.RETURN) {
|
| + return parseReturnStatement();
|
| + } else if (keyword29 == Keyword.SWITCH) {
|
| + return parseSwitchStatement();
|
| + } else if (keyword29 == Keyword.THROW) {
|
| + return new ExpressionStatement(parseThrowExpression(), expect2(TokenType.SEMICOLON));
|
| + } else if (keyword29 == Keyword.TRY) {
|
| + return parseTryStatement();
|
| + } else if (keyword29 == Keyword.WHILE) {
|
| + return parseWhileStatement();
|
| + } else if (keyword29 == Keyword.VAR || keyword29 == Keyword.FINAL) {
|
| + return parseVariableDeclarationStatement();
|
| + } else if (keyword29 == Keyword.VOID) {
|
| + TypeName returnType = parseReturnType();
|
| + if (matchesIdentifier() && matchesAny(peek(), [TokenType.OPEN_PAREN, TokenType.OPEN_CURLY_BRACKET, TokenType.FUNCTION])) {
|
| + return parseFunctionDeclarationStatement2(commentAndMetadata, returnType);
|
| + } else {
|
| + if (matchesIdentifier()) {
|
| + if (matchesAny(peek(), [TokenType.EQ, TokenType.COMMA, TokenType.SEMICOLON])) {
|
| + reportError(ParserErrorCode.VOID_VARIABLE, returnType, []);
|
| + return parseVariableDeclarationStatement();
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| + } else if (keyword29 == Keyword.CONST) {
|
| + if (matchesAny(peek(), [TokenType.LT, TokenType.OPEN_CURLY_BRACKET, TokenType.OPEN_SQUARE_BRACKET, TokenType.INDEX])) {
|
| + return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
|
| + } else if (matches4(peek(), TokenType.IDENTIFIER)) {
|
| + Token afterType = skipTypeName(peek());
|
| + if (afterType != null) {
|
| + if (matches4(afterType, TokenType.OPEN_PAREN) || (matches4(afterType, TokenType.PERIOD) && matches4(afterType.next, TokenType.IDENTIFIER) && matches4(afterType.next.next, TokenType.OPEN_PAREN))) {
|
| + return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
|
| + }
|
| + }
|
| + }
|
| + return parseVariableDeclarationStatement();
|
| + } else if (keyword29 == Keyword.NEW || keyword29 == Keyword.TRUE || keyword29 == Keyword.FALSE || keyword29 == Keyword.NULL || keyword29 == Keyword.SUPER || keyword29 == Keyword.THIS) {
|
| + return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
|
| + } else {
|
| + return null;
|
| + }
|
| + } else if (matches5(TokenType.SEMICOLON)) {
|
| + return parseEmptyStatement();
|
| + } else if (isInitializedVariableDeclaration()) {
|
| + return parseVariableDeclarationStatement();
|
| + } else if (isFunctionDeclaration()) {
|
| + return parseFunctionDeclarationStatement();
|
| + } else {
|
| + return new ExpressionStatement(parseExpression2(), expect2(TokenType.SEMICOLON));
|
| + }
|
| + }
|
| + /**
|
| + * Parse a normal formal parameter.
|
| + * <pre>
|
| + * normalFormalParameter ::=
|
| + * functionSignature
|
| + * | fieldFormalParameter
|
| + * | simpleFormalParameter
|
| + * functionSignature:
|
| + * metadata returnType? identifier formalParameterList
|
| + * fieldFormalParameter ::=
|
| + * metadata finalConstVarOrType? 'this' '.' identifier
|
| + * simpleFormalParameter ::=
|
| + * declaredIdentifier
|
| + * | metadata identifier
|
| + * </pre>
|
| + * @return the normal formal parameter that was parsed
|
| + */
|
| + NormalFormalParameter parseNormalFormalParameter() {
|
| + CommentAndMetadata commentAndMetadata = parseCommentAndMetadata();
|
| + FinalConstVarOrType holder = parseFinalConstVarOrType(true);
|
| + Token thisKeyword = null;
|
| + Token period = null;
|
| + if (matches(Keyword.THIS)) {
|
| + thisKeyword = andAdvance;
|
| + period = expect2(TokenType.PERIOD);
|
| + }
|
| + SimpleIdentifier identifier = parseSimpleIdentifier();
|
| + if (matches5(TokenType.OPEN_PAREN)) {
|
| + if (thisKeyword != null) {
|
| + }
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + return new FunctionTypedFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.type, identifier, parameters);
|
| + }
|
| + TypeName type18 = holder.type;
|
| + if (type18 != null && matches3(type18.name.beginToken, Keyword.VOID)) {
|
| + reportError4(ParserErrorCode.VOID_PARAMETER, type18.name.beginToken, []);
|
| + }
|
| + if (thisKeyword != null) {
|
| + return new FieldFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, thisKeyword, period, identifier);
|
| + }
|
| + return new SimpleFormalParameter(commentAndMetadata.comment, commentAndMetadata.metadata, holder.keyword, holder.type, identifier);
|
| + }
|
| + /**
|
| + * Parse an operator declaration.
|
| + * <pre>
|
| + * operatorDeclaration ::=
|
| + * operatorSignature (';' | functionBody)
|
| + * operatorSignature ::=
|
| + * 'external'? returnType? 'operator' operator formalParameterList
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param externalKeyword the 'external' token
|
| + * @param the return type that has already been parsed, or {@code null} if there was no return
|
| + * type
|
| + * @return the operator declaration that was parsed
|
| + */
|
| + MethodDeclaration parseOperator(CommentAndMetadata commentAndMetadata, Token externalKeyword, TypeName returnType) {
|
| + Token operatorKeyword = expect(Keyword.OPERATOR);
|
| + if (!_currentToken.isUserDefinableOperator()) {
|
| + reportError3(ParserErrorCode.NON_USER_DEFINABLE_OPERATOR, [_currentToken.lexeme]);
|
| + }
|
| + SimpleIdentifier name = new SimpleIdentifier(andAdvance);
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + validateFormalParameterList(parameters);
|
| + FunctionBody body = parseFunctionBody(true, false);
|
| + if (externalKeyword != null && body is! EmptyFunctionBody) {
|
| + reportError3(ParserErrorCode.EXTERNAL_OPERATOR_WITH_BODY, []);
|
| + }
|
| + return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, null, returnType, null, operatorKeyword, name, parameters, body);
|
| + }
|
| + /**
|
| + * Parse a return type if one is given, otherwise return {@code null} without advancing.
|
| + * @return the return type that was parsed
|
| + */
|
| + TypeName parseOptionalReturnType() {
|
| + if (matches(Keyword.VOID)) {
|
| + return parseReturnType();
|
| + } else if (matchesIdentifier() && !matches(Keyword.GET) && !matches(Keyword.SET) && !matches(Keyword.OPERATOR) && (matchesIdentifier2(peek()) || matches4(peek(), TokenType.LT))) {
|
| + return parseReturnType();
|
| + } else if (matchesIdentifier() && matches4(peek(), TokenType.PERIOD) && matchesIdentifier2(peek2(2)) && (matchesIdentifier2(peek2(3)) || matches4(peek2(3), TokenType.LT))) {
|
| + return parseReturnType();
|
| + }
|
| + return null;
|
| + }
|
| + /**
|
| + * Parse a part or part-of directive.
|
| + * <pre>
|
| + * partDirective ::=
|
| + * metadata 'part' stringLiteral ';'
|
| + * partOfDirective ::=
|
| + * metadata 'part' 'of' identifier ';'
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the directive
|
| + * @return the part or part-of directive that was parsed
|
| + */
|
| + Directive parsePartDirective(CommentAndMetadata commentAndMetadata) {
|
| + Token partKeyword = expect(Keyword.PART);
|
| + if (matches2(Parser._OF)) {
|
| + Token ofKeyword = andAdvance;
|
| + LibraryIdentifier libraryName = parseLibraryName(ParserErrorCode.MISSING_NAME_IN_PART_OF_DIRECTIVE, ofKeyword);
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new PartOfDirective(commentAndMetadata.comment, commentAndMetadata.metadata, partKeyword, ofKeyword, libraryName, semicolon);
|
| + }
|
| + StringLiteral partUri = parseStringLiteral();
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new PartDirective(commentAndMetadata.comment, commentAndMetadata.metadata, partKeyword, partUri, semicolon);
|
| + }
|
| + /**
|
| + * Parse a postfix expression.
|
| + * <pre>
|
| + * postfixExpression ::=
|
| + * assignableExpression postfixOperator
|
| + * | primary selector
|
| + * selector ::=
|
| + * assignableSelector
|
| + * | argumentList
|
| + * </pre>
|
| + * @return the postfix expression that was parsed
|
| + */
|
| + Expression parsePostfixExpression() {
|
| + Expression operand = parseAssignableExpression(true);
|
| + if (matches5(TokenType.OPEN_SQUARE_BRACKET) || matches5(TokenType.PERIOD) || matches5(TokenType.OPEN_PAREN)) {
|
| + do {
|
| + if (matches5(TokenType.OPEN_PAREN)) {
|
| + ArgumentList argumentList = parseArgumentList();
|
| + if (operand is PropertyAccess) {
|
| + PropertyAccess access = operand as PropertyAccess;
|
| + operand = new MethodInvocation(access.target, access.operator, access.propertyName, argumentList);
|
| + } else {
|
| + operand = new FunctionExpressionInvocation(operand, argumentList);
|
| + }
|
| + } else {
|
| + operand = parseAssignableSelector(operand, true);
|
| + }
|
| + } while (matches5(TokenType.OPEN_SQUARE_BRACKET) || matches5(TokenType.PERIOD) || matches5(TokenType.OPEN_PAREN));
|
| + return operand;
|
| + }
|
| + if (!_currentToken.type.isIncrementOperator()) {
|
| + return operand;
|
| + }
|
| + if (operand is FunctionExpressionInvocation) {
|
| + reportError3(ParserErrorCode.MISSING_ASSIGNABLE_SELECTOR, []);
|
| + }
|
| + Token operator = andAdvance;
|
| + return new PostfixExpression(operand, operator);
|
| + }
|
| + /**
|
| + * Parse a prefixed identifier.
|
| + * <pre>
|
| + * prefixedIdentifier ::=
|
| + * identifier ('.' identifier)?
|
| + * </pre>
|
| + * @return the prefixed identifier that was parsed
|
| + */
|
| + Identifier parsePrefixedIdentifier() {
|
| + SimpleIdentifier qualifier = parseSimpleIdentifier();
|
| + if (!matches5(TokenType.PERIOD)) {
|
| + return qualifier;
|
| + }
|
| + Token period = andAdvance;
|
| + SimpleIdentifier qualified = parseSimpleIdentifier();
|
| + return new PrefixedIdentifier(qualifier, period, qualified);
|
| + }
|
| + /**
|
| + * Parse a primary expression.
|
| + * <pre>
|
| + * primary ::=
|
| + * thisExpression
|
| + * | 'super' assignableSelector
|
| + * | functionExpression
|
| + * | literal
|
| + * | identifier
|
| + * | newExpression
|
| + * | constObjectExpression
|
| + * | '(' expression ')'
|
| + * | argumentDefinitionTest
|
| + * literal ::=
|
| + * nullLiteral
|
| + * | booleanLiteral
|
| + * | numericLiteral
|
| + * | stringLiteral
|
| + * | mapLiteral
|
| + * | listLiteral
|
| + * </pre>
|
| + * @return the primary expression that was parsed
|
| + */
|
| + Expression parsePrimaryExpression() {
|
| + if (matches(Keyword.THIS)) {
|
| + return new ThisExpression(andAdvance);
|
| + } else if (matches(Keyword.SUPER)) {
|
| + return parseAssignableSelector(new SuperExpression(andAdvance), false);
|
| + } else if (matches(Keyword.NULL)) {
|
| + return new NullLiteral(andAdvance);
|
| + } else if (matches(Keyword.FALSE)) {
|
| + return new BooleanLiteral(andAdvance, false);
|
| + } else if (matches(Keyword.TRUE)) {
|
| + return new BooleanLiteral(andAdvance, true);
|
| + } else if (matches5(TokenType.DOUBLE)) {
|
| + Token token = andAdvance;
|
| + double value = 0.0;
|
| + try {
|
| + value = double.parse(token.lexeme);
|
| + } on NumberFormatException catch (exception) {
|
| + }
|
| + return new DoubleLiteral(token, value);
|
| + } else if (matches5(TokenType.HEXADECIMAL)) {
|
| + Token token = andAdvance;
|
| + int value = null;
|
| + try {
|
| + value = int.parse(token.lexeme.substring(2), radix: 16);
|
| + } on NumberFormatException catch (exception) {
|
| + }
|
| + return new IntegerLiteral.con1(token, value);
|
| + } else if (matches5(TokenType.INT)) {
|
| + Token token = andAdvance;
|
| + int value = null;
|
| + try {
|
| + value = int.parse(token.lexeme);
|
| + } on NumberFormatException catch (exception) {
|
| + }
|
| + return new IntegerLiteral.con1(token, value);
|
| + } else if (matches5(TokenType.STRING)) {
|
| + return parseStringLiteral();
|
| + } else if (matches5(TokenType.OPEN_CURLY_BRACKET)) {
|
| + return parseMapLiteral(null, null);
|
| + } else if (matches5(TokenType.OPEN_SQUARE_BRACKET) || matches5(TokenType.INDEX)) {
|
| + return parseListLiteral(null, null);
|
| + } else if (matchesIdentifier()) {
|
| + return parsePrefixedIdentifier();
|
| + } else if (matches(Keyword.NEW)) {
|
| + return parseNewExpression();
|
| + } else if (matches(Keyword.CONST)) {
|
| + return parseConstExpression();
|
| + } else if (matches5(TokenType.OPEN_PAREN)) {
|
| + if (isFunctionExpression(_currentToken)) {
|
| + return parseFunctionExpression();
|
| + }
|
| + Token leftParenthesis = andAdvance;
|
| + Expression expression = parseExpression2();
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + return new ParenthesizedExpression(leftParenthesis, expression, rightParenthesis);
|
| + } else if (matches5(TokenType.LT)) {
|
| + return parseListOrMapLiteral(null);
|
| + } else if (matches5(TokenType.QUESTION)) {
|
| + return parseArgumentDefinitionTest();
|
| + } else if (matches(Keyword.VOID)) {
|
| + reportError3(ParserErrorCode.UNEXPECTED_TOKEN, [_currentToken.lexeme]);
|
| + advance();
|
| + return parsePrimaryExpression();
|
| + } else {
|
| + return createSyntheticIdentifier();
|
| + }
|
| + }
|
| + /**
|
| + * Parse a redirecting constructor invocation.
|
| + * <pre>
|
| + * redirectingConstructorInvocation ::=
|
| + * 'this' ('.' identifier)? arguments
|
| + * </pre>
|
| + * @return the redirecting constructor invocation that was parsed
|
| + */
|
| + RedirectingConstructorInvocation parseRedirectingConstructorInvocation() {
|
| + Token keyword = expect(Keyword.THIS);
|
| + Token period = null;
|
| + SimpleIdentifier constructorName = null;
|
| + if (matches5(TokenType.PERIOD)) {
|
| + period = andAdvance;
|
| + constructorName = parseSimpleIdentifier();
|
| + }
|
| + ArgumentList argumentList = parseArgumentList();
|
| + return new RedirectingConstructorInvocation(keyword, period, constructorName, argumentList);
|
| + }
|
| + /**
|
| + * Parse a relational expression.
|
| + * <pre>
|
| + * relationalExpression ::=
|
| + * shiftExpression ('is' type | 'as' type | relationalOperator shiftExpression)?
|
| + * | 'super' relationalOperator shiftExpression
|
| + * </pre>
|
| + * @return the relational expression that was parsed
|
| + */
|
| + Expression parseRelationalExpression() {
|
| + if (matches(Keyword.SUPER) && _currentToken.next.type.isRelationalOperator()) {
|
| + Expression expression = new SuperExpression(andAdvance);
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseShiftExpression());
|
| + return expression;
|
| + }
|
| + Expression expression = parseShiftExpression();
|
| + if (matches(Keyword.AS)) {
|
| + Token isOperator = andAdvance;
|
| + expression = new AsExpression(expression, isOperator, parseTypeName());
|
| + } else if (matches(Keyword.IS)) {
|
| + Token isOperator = andAdvance;
|
| + Token notOperator = null;
|
| + if (matches5(TokenType.BANG)) {
|
| + notOperator = andAdvance;
|
| + }
|
| + expression = new IsExpression(expression, isOperator, notOperator, parseTypeName());
|
| + } else if (_currentToken.type.isRelationalOperator()) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseShiftExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a return statement.
|
| + * <pre>
|
| + * returnStatement ::=
|
| + * 'return' expression? ';'
|
| + * </pre>
|
| + * @return the return statement that was parsed
|
| + */
|
| + Statement parseReturnStatement() {
|
| + Token returnKeyword = expect(Keyword.RETURN);
|
| + if (matches5(TokenType.SEMICOLON)) {
|
| + return new ReturnStatement(returnKeyword, null, andAdvance);
|
| + }
|
| + Expression expression = parseExpression2();
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new ReturnStatement(returnKeyword, expression, semicolon);
|
| + }
|
| + /**
|
| + * Parse a return type.
|
| + * <pre>
|
| + * returnType ::=
|
| + * 'void'
|
| + * | type
|
| + * </pre>
|
| + * @return the return type that was parsed
|
| + */
|
| + TypeName parseReturnType() {
|
| + if (matches(Keyword.VOID)) {
|
| + return new TypeName(new SimpleIdentifier(andAdvance), null);
|
| + } else {
|
| + return parseTypeName();
|
| + }
|
| + }
|
| + /**
|
| + * Parse a setter.
|
| + * <pre>
|
| + * setter ::=
|
| + * setterSignature functionBody?
|
| + * setterSignature ::=
|
| + * 'external'? 'static'? returnType? 'set' identifier formalParameterList
|
| + * </pre>
|
| + * @param commentAndMetadata the documentation comment and metadata to be associated with the
|
| + * declaration
|
| + * @param externalKeyword the 'external' token
|
| + * @param staticKeyword the static keyword, or {@code null} if the setter is not static
|
| + * @param the return type that has already been parsed, or {@code null} if there was no return
|
| + * type
|
| + * @return the setter that was parsed
|
| + */
|
| + MethodDeclaration parseSetter(CommentAndMetadata commentAndMetadata, Token externalKeyword, Token staticKeyword, TypeName returnType) {
|
| + Token propertyKeyword = expect(Keyword.SET);
|
| + SimpleIdentifier name = parseSimpleIdentifier();
|
| + FormalParameterList parameters = parseFormalParameterList();
|
| + validateFormalParameterList(parameters);
|
| + FunctionBody body = parseFunctionBody(true, false);
|
| + if (externalKeyword != null && body is! EmptyFunctionBody) {
|
| + reportError3(ParserErrorCode.EXTERNAL_SETTER_WITH_BODY, []);
|
| + }
|
| + return new MethodDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, externalKeyword, staticKeyword, returnType, propertyKeyword, null, name, parameters, body);
|
| + }
|
| + /**
|
| + * Parse a shift expression.
|
| + * <pre>
|
| + * shiftExpression ::=
|
| + * additiveExpression (shiftOperator additiveExpression)
|
| + * | 'super' (shiftOperator additiveExpression)+
|
| + * </pre>
|
| + * @return the shift expression that was parsed
|
| + */
|
| + Expression parseShiftExpression() {
|
| + Expression expression;
|
| + if (matches(Keyword.SUPER) && _currentToken.next.type.isShiftOperator()) {
|
| + expression = new SuperExpression(andAdvance);
|
| + } else {
|
| + expression = parseAdditiveExpression();
|
| + }
|
| + while (_currentToken.type.isShiftOperator()) {
|
| + Token operator = andAdvance;
|
| + expression = new BinaryExpression(expression, operator, parseAdditiveExpression());
|
| + }
|
| + return expression;
|
| + }
|
| + /**
|
| + * Parse a simple identifier.
|
| + * <pre>
|
| + * identifier ::=
|
| + * IDENTIFIER
|
| + * </pre>
|
| + * @return the simple identifier that was parsed
|
| + */
|
| + SimpleIdentifier parseSimpleIdentifier() {
|
| + if (matchesIdentifier()) {
|
| + return new SimpleIdentifier(andAdvance);
|
| + }
|
| + reportError3(ParserErrorCode.MISSING_IDENTIFIER, []);
|
| + return createSyntheticIdentifier();
|
| + }
|
| + /**
|
| + * Parse a simple identifier and validate that it is not a built-in identifier.
|
| + * <pre>
|
| + * identifier ::=
|
| + * IDENTIFIER
|
| + * </pre>
|
| + * @param errorCode the error code to be used to report a built-in identifier if one is found
|
| + * @return the simple identifier that was parsed
|
| + */
|
| + SimpleIdentifier parseSimpleIdentifier2(ParserErrorCode errorCode) {
|
| + if (matchesIdentifier()) {
|
| + Token token = andAdvance;
|
| + if (token.type == TokenType.KEYWORD) {
|
| + reportError4(errorCode, token, [token.lexeme]);
|
| + }
|
| + return new SimpleIdentifier(token);
|
| + }
|
| + reportError3(ParserErrorCode.MISSING_IDENTIFIER, []);
|
| + return createSyntheticIdentifier();
|
| + }
|
| + /**
|
| + * Parse a statement.
|
| + * <pre>
|
| + * statement ::=
|
| + * label* nonLabeledStatement
|
| + * </pre>
|
| + * @return the statement that was parsed
|
| + */
|
| + Statement parseStatement2() {
|
| + List<Label> labels = new List<Label>();
|
| + while (matchesIdentifier() && matches4(peek(), TokenType.COLON)) {
|
| + SimpleIdentifier label = parseSimpleIdentifier();
|
| + Token colon = expect2(TokenType.COLON);
|
| + labels.add(new Label(label, colon));
|
| + }
|
| + Statement statement = parseNonLabeledStatement();
|
| + if (labels.isEmpty) {
|
| + return statement;
|
| + }
|
| + return new LabeledStatement(labels, statement);
|
| + }
|
| + /**
|
| + * Parse a list of statements within a switch statement.
|
| + * <pre>
|
| + * statements ::=
|
| + * statement
|
| + * </pre>
|
| + * @return the statements that were parsed
|
| + */
|
| + List<Statement> parseStatements2() {
|
| + List<Statement> statements = new List<Statement>();
|
| + Token statementStart = _currentToken;
|
| + while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET) && !isSwitchMember()) {
|
| + statements.add(parseStatement2());
|
| + if (_currentToken == statementStart) {
|
| + reportError4(ParserErrorCode.UNEXPECTED_TOKEN, _currentToken, [_currentToken.lexeme]);
|
| + advance();
|
| + }
|
| + statementStart = _currentToken;
|
| + }
|
| + return statements;
|
| + }
|
| + /**
|
| + * Parse a string literal that contains interpolations.
|
| + * @return the string literal that was parsed
|
| + */
|
| + StringInterpolation parseStringInterpolation(Token string) {
|
| + List<InterpolationElement> elements = new List<InterpolationElement>();
|
| + elements.add(new InterpolationString(string, computeStringValue(string.lexeme)));
|
| + while (matches5(TokenType.STRING_INTERPOLATION_EXPRESSION) || matches5(TokenType.STRING_INTERPOLATION_IDENTIFIER)) {
|
| + if (matches5(TokenType.STRING_INTERPOLATION_EXPRESSION)) {
|
| + Token openToken = andAdvance;
|
| + Expression expression = parseExpression2();
|
| + Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
|
| + elements.add(new InterpolationExpression(openToken, expression, rightBracket));
|
| + } else {
|
| + Token openToken = andAdvance;
|
| + Expression expression = null;
|
| + if (matches(Keyword.THIS)) {
|
| + expression = new ThisExpression(andAdvance);
|
| + } else {
|
| + expression = parseSimpleIdentifier();
|
| + }
|
| + elements.add(new InterpolationExpression(openToken, expression, null));
|
| + }
|
| + if (matches5(TokenType.STRING)) {
|
| + string = andAdvance;
|
| + elements.add(new InterpolationString(string, computeStringValue(string.lexeme)));
|
| + }
|
| + }
|
| + return new StringInterpolation(elements);
|
| + }
|
| + /**
|
| + * Parse a string literal.
|
| + * <pre>
|
| + * stringLiteral ::=
|
| + * MULTI_LINE_STRING+
|
| + * | SINGLE_LINE_STRING+
|
| + * </pre>
|
| + * @return the string literal that was parsed
|
| + */
|
| + StringLiteral parseStringLiteral() {
|
| + List<StringLiteral> strings = new List<StringLiteral>();
|
| + while (matches5(TokenType.STRING)) {
|
| + Token string = andAdvance;
|
| + if (matches5(TokenType.STRING_INTERPOLATION_EXPRESSION) || matches5(TokenType.STRING_INTERPOLATION_IDENTIFIER)) {
|
| + strings.add(parseStringInterpolation(string));
|
| + } else {
|
| + strings.add(new SimpleStringLiteral(string, computeStringValue(string.lexeme)));
|
| + }
|
| + }
|
| + if (strings.length < 1) {
|
| + reportError3(ParserErrorCode.EXPECTED_STRING_LITERAL, []);
|
| + return createSyntheticStringLiteral();
|
| + } else if (strings.length == 1) {
|
| + return strings[0];
|
| + } else {
|
| + return new AdjacentStrings(strings);
|
| + }
|
| + }
|
| + /**
|
| + * Parse a super constructor invocation.
|
| + * <pre>
|
| + * superConstructorInvocation ::=
|
| + * 'super' ('.' identifier)? arguments
|
| + * </pre>
|
| + * @return the super constructor invocation that was parsed
|
| + */
|
| + SuperConstructorInvocation parseSuperConstructorInvocation() {
|
| + Token keyword = expect(Keyword.SUPER);
|
| + Token period = null;
|
| + SimpleIdentifier constructorName = null;
|
| + if (matches5(TokenType.PERIOD)) {
|
| + period = andAdvance;
|
| + constructorName = parseSimpleIdentifier();
|
| + }
|
| + ArgumentList argumentList = parseArgumentList();
|
| + return new SuperConstructorInvocation(keyword, period, constructorName, argumentList);
|
| + }
|
| + /**
|
| + * Parse a switch statement.
|
| + * <pre>
|
| + * switchStatement ::=
|
| + * 'switch' '(' expression ')' '{' switchCase* defaultCase? '}'
|
| + * switchCase ::=
|
| + * label* ('case' expression ':') statements
|
| + * defaultCase ::=
|
| + * label* 'default' ':' statements
|
| + * </pre>
|
| + * @return the switch statement that was parsed
|
| + */
|
| + SwitchStatement parseSwitchStatement() {
|
| + bool wasInSwitch = _inSwitch;
|
| + _inSwitch = true;
|
| + try {
|
| + Set<String> definedLabels = new Set<String>();
|
| + Token keyword = expect(Keyword.SWITCH);
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + Expression expression = parseExpression2();
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + Token leftBracket = expect2(TokenType.OPEN_CURLY_BRACKET);
|
| + List<SwitchMember> members = new List<SwitchMember>();
|
| + while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET)) {
|
| + List<Label> labels = new List<Label>();
|
| + while (matchesIdentifier() && matches4(peek(), TokenType.COLON)) {
|
| + SimpleIdentifier identifier = parseSimpleIdentifier();
|
| + String label = identifier.token.lexeme;
|
| + if (definedLabels.contains(label)) {
|
| + reportError4(ParserErrorCode.DUPLICATE_LABEL_IN_SWITCH_STATEMENT, identifier.token, [label]);
|
| + } else {
|
| + javaSetAdd(definedLabels, label);
|
| + }
|
| + Token colon = expect2(TokenType.COLON);
|
| + labels.add(new Label(identifier, colon));
|
| + }
|
| + if (matches(Keyword.CASE)) {
|
| + Token caseKeyword = andAdvance;
|
| + Expression caseExpression = parseExpression2();
|
| + Token colon = expect2(TokenType.COLON);
|
| + members.add(new SwitchCase(labels, caseKeyword, caseExpression, colon, parseStatements2()));
|
| + } else if (matches(Keyword.DEFAULT)) {
|
| + Token defaultKeyword = andAdvance;
|
| + Token colon = expect2(TokenType.COLON);
|
| + members.add(new SwitchDefault(labels, defaultKeyword, colon, parseStatements2()));
|
| + } else {
|
| + reportError3(ParserErrorCode.EXPECTED_CASE_OR_DEFAULT, []);
|
| + while (!matches5(TokenType.EOF) && !matches5(TokenType.CLOSE_CURLY_BRACKET) && !matches(Keyword.CASE) && !matches(Keyword.DEFAULT)) {
|
| + advance();
|
| + }
|
| + }
|
| + }
|
| + Token rightBracket = expect2(TokenType.CLOSE_CURLY_BRACKET);
|
| + return new SwitchStatement(keyword, leftParenthesis, expression, rightParenthesis, leftBracket, members, rightBracket);
|
| + } finally {
|
| + _inSwitch = wasInSwitch;
|
| + }
|
| + }
|
| + /**
|
| + * Parse a throw expression.
|
| + * <pre>
|
| + * throwExpression ::=
|
| + * 'throw' expression? ';'
|
| + * </pre>
|
| + * @return the throw expression that was parsed
|
| + */
|
| + Expression parseThrowExpression() {
|
| + Token keyword = expect(Keyword.THROW);
|
| + if (matches5(TokenType.SEMICOLON) || matches5(TokenType.CLOSE_PAREN)) {
|
| + return new ThrowExpression(keyword, null);
|
| + }
|
| + Expression expression = parseExpression2();
|
| + return new ThrowExpression(keyword, expression);
|
| + }
|
| + /**
|
| + * Parse a throw expression.
|
| + * <pre>
|
| + * throwExpressionWithoutCascade ::=
|
| + * 'throw' expressionWithoutCascade? ';'
|
| + * </pre>
|
| + * @return the throw expression that was parsed
|
| + */
|
| + Expression parseThrowExpressionWithoutCascade() {
|
| + Token keyword = expect(Keyword.THROW);
|
| + if (matches5(TokenType.SEMICOLON) || matches5(TokenType.CLOSE_PAREN)) {
|
| + return new ThrowExpression(keyword, null);
|
| + }
|
| + Expression expression = parseExpressionWithoutCascade();
|
| + return new ThrowExpression(keyword, expression);
|
| + }
|
| + /**
|
| + * Parse a try statement.
|
| + * <pre>
|
| + * tryStatement ::=
|
| + * 'try' block (onPart+ finallyPart? | finallyPart)
|
| + * onPart ::=
|
| + * catchPart block
|
| + * | 'on' qualified catchPart? block
|
| + * catchPart ::=
|
| + * 'catch' '(' identifier (',' identifier)? ')'
|
| + * finallyPart ::=
|
| + * 'finally' block
|
| + * </pre>
|
| + * @return the try statement that was parsed
|
| + */
|
| + Statement parseTryStatement() {
|
| + Token tryKeyword = expect(Keyword.TRY);
|
| + Block body = parseBlock();
|
| + List<CatchClause> catchClauses = new List<CatchClause>();
|
| + Block finallyClause = null;
|
| + while (matches2(Parser._ON) || matches(Keyword.CATCH)) {
|
| + Token onKeyword = null;
|
| + TypeName exceptionType = null;
|
| + if (matches2(Parser._ON)) {
|
| + onKeyword = andAdvance;
|
| + exceptionType = new TypeName(parsePrefixedIdentifier(), null);
|
| + }
|
| + Token catchKeyword = null;
|
| + Token leftParenthesis = null;
|
| + SimpleIdentifier exceptionParameter = null;
|
| + Token comma = null;
|
| + SimpleIdentifier stackTraceParameter = null;
|
| + Token rightParenthesis = null;
|
| + if (matches(Keyword.CATCH)) {
|
| + catchKeyword = andAdvance;
|
| + leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + exceptionParameter = parseSimpleIdentifier();
|
| + if (matches5(TokenType.COMMA)) {
|
| + comma = andAdvance;
|
| + stackTraceParameter = parseSimpleIdentifier();
|
| + }
|
| + rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + }
|
| + Block catchBody = parseBlock();
|
| + catchClauses.add(new CatchClause(onKeyword, exceptionType, catchKeyword, leftParenthesis, exceptionParameter, comma, stackTraceParameter, rightParenthesis, catchBody));
|
| + }
|
| + Token finallyKeyword = null;
|
| + if (matches(Keyword.FINALLY)) {
|
| + finallyKeyword = andAdvance;
|
| + finallyClause = parseBlock();
|
| + } else {
|
| + if (catchClauses.isEmpty) {
|
| + reportError3(ParserErrorCode.MISSING_CATCH_OR_FINALLY, []);
|
| + }
|
| + }
|
| + return new TryStatement(tryKeyword, body, catchClauses, finallyKeyword, finallyClause);
|
| + }
|
| + /**
|
| + * Parse a type alias.
|
| + * <pre>
|
| + * typeAlias ::=
|
| + * 'typedef' typeAliasBody
|
| + * typeAliasBody ::=
|
| + * classTypeAlias
|
| + * | functionTypeAlias
|
| + * classTypeAlias ::=
|
| + * identifier typeParameters? '=' 'abstract'? mixinApplication
|
| + * mixinApplication ::=
|
| + * qualified withClause implementsClause? ';'
|
| + * functionTypeAlias ::=
|
| + * functionPrefix typeParameterList? formalParameterList ';'
|
| + * functionPrefix ::=
|
| + * returnType? name
|
| + * </pre>
|
| + * @param commentAndMetadata the metadata to be associated with the member
|
| + * @return the type alias that was parsed
|
| + */
|
| + TypeAlias parseTypeAlias(CommentAndMetadata commentAndMetadata) {
|
| + Token keyword = expect(Keyword.TYPEDEF);
|
| + if (matchesIdentifier()) {
|
| + Token next = peek();
|
| + if (matches4(next, TokenType.LT)) {
|
| + next = skipTypeParameterList(next);
|
| + if (next != null && matches4(next, TokenType.EQ)) {
|
| + return parseClassTypeAlias(commentAndMetadata, keyword);
|
| + }
|
| + } else if (matches4(next, TokenType.EQ)) {
|
| + return parseClassTypeAlias(commentAndMetadata, keyword);
|
| + }
|
| + }
|
| + return parseFunctionTypeAlias(commentAndMetadata, keyword);
|
| + }
|
| + /**
|
| + * Parse a list of type arguments.
|
| + * <pre>
|
| + * typeArguments ::=
|
| + * '<' typeList '>'
|
| + * typeList ::=
|
| + * type (',' type)
|
| + * </pre>
|
| + * @return the type argument list that was parsed
|
| + */
|
| + TypeArgumentList parseTypeArgumentList() {
|
| + Token leftBracket = expect2(TokenType.LT);
|
| + List<TypeName> arguments = new List<TypeName>();
|
| + arguments.add(parseTypeName());
|
| + while (optional(TokenType.COMMA)) {
|
| + arguments.add(parseTypeName());
|
| + }
|
| + Token rightBracket = expect2(TokenType.GT);
|
| + return new TypeArgumentList(leftBracket, arguments, rightBracket);
|
| + }
|
| + /**
|
| + * Parse a type name.
|
| + * <pre>
|
| + * type ::=
|
| + * qualified typeArguments?
|
| + * </pre>
|
| + * @return the type name that was parsed
|
| + */
|
| + TypeName parseTypeName() {
|
| + Identifier typeName = parsePrefixedIdentifier();
|
| + TypeArgumentList typeArguments = null;
|
| + if (matches5(TokenType.LT)) {
|
| + typeArguments = parseTypeArgumentList();
|
| + }
|
| + return new TypeName(typeName, typeArguments);
|
| + }
|
| + /**
|
| + * Parse a type parameter.
|
| + * <pre>
|
| + * typeParameter ::=
|
| + * metadata name ('extends' bound)?
|
| + * </pre>
|
| + * @return the type parameter that was parsed
|
| + */
|
| + TypeParameter parseTypeParameter() {
|
| + CommentAndMetadata commentAndMetadata = parseCommentAndMetadata();
|
| + SimpleIdentifier name = parseSimpleIdentifier2(ParserErrorCode.BUILT_IN_IDENTIFIER_AS_TYPE_VARIABLE_NAME);
|
| + if (matches(Keyword.EXTENDS)) {
|
| + Token keyword = andAdvance;
|
| + TypeName bound = parseTypeName();
|
| + return new TypeParameter(commentAndMetadata.comment, commentAndMetadata.metadata, name, keyword, bound);
|
| + }
|
| + return new TypeParameter(commentAndMetadata.comment, commentAndMetadata.metadata, name, null, null);
|
| + }
|
| + /**
|
| + * Parse a list of type parameters.
|
| + * <pre>
|
| + * typeParameterList ::=
|
| + * '<' typeParameter (',' typeParameter)* '>'
|
| + * </pre>
|
| + * @return the list of type parameters that were parsed
|
| + */
|
| + TypeParameterList parseTypeParameterList() {
|
| + Token leftBracket = expect2(TokenType.LT);
|
| + List<TypeParameter> typeParameters = new List<TypeParameter>();
|
| + typeParameters.add(parseTypeParameter());
|
| + while (optional(TokenType.COMMA)) {
|
| + typeParameters.add(parseTypeParameter());
|
| + }
|
| + Token rightBracket = expect2(TokenType.GT);
|
| + return new TypeParameterList(leftBracket, typeParameters, rightBracket);
|
| + }
|
| + /**
|
| + * Parse a unary expression.
|
| + * <pre>
|
| + * unaryExpression ::=
|
| + * prefixOperator unaryExpression
|
| + * | postfixExpression
|
| + * | unaryOperator 'super'
|
| + * | '-' 'super'
|
| + * | incrementOperator assignableExpression
|
| + * </pre>
|
| + * @return the unary expression that was parsed
|
| + */
|
| + Expression parseUnaryExpression() {
|
| + if (matches5(TokenType.MINUS) || matches5(TokenType.BANG) || matches5(TokenType.TILDE)) {
|
| + Token operator = andAdvance;
|
| + if (matches(Keyword.SUPER)) {
|
| + if (matches4(peek(), TokenType.OPEN_SQUARE_BRACKET) || matches4(peek(), TokenType.PERIOD)) {
|
| + return new PrefixExpression(operator, parseUnaryExpression());
|
| + }
|
| + return new PrefixExpression(operator, new SuperExpression(andAdvance));
|
| + }
|
| + return new PrefixExpression(operator, parseUnaryExpression());
|
| + } else if (_currentToken.type.isIncrementOperator()) {
|
| + Token operator = andAdvance;
|
| + if (matches(Keyword.SUPER)) {
|
| + if (operator.type == TokenType.MINUS_MINUS) {
|
| + int offset7 = operator.offset;
|
| + Token firstOperator = new Token(TokenType.MINUS, offset7);
|
| + Token secondOperator = new Token(TokenType.MINUS, offset7 + 1);
|
| + secondOperator.setNext(_currentToken);
|
| + firstOperator.setNext(secondOperator);
|
| + operator.previous.setNext(firstOperator);
|
| + return new PrefixExpression(firstOperator, new PrefixExpression(secondOperator, new SuperExpression(andAdvance)));
|
| + } else {
|
| + reportError3(ParserErrorCode.INVALID_OPERATOR_FOR_SUPER, [operator.lexeme]);
|
| + return new PrefixExpression(operator, new SuperExpression(andAdvance));
|
| + }
|
| + }
|
| + return new PrefixExpression(operator, parseAssignableExpression(false));
|
| + } else if (matches5(TokenType.PLUS)) {
|
| + reportError3(ParserErrorCode.USE_OF_UNARY_PLUS_OPERATOR, []);
|
| + }
|
| + return parsePostfixExpression();
|
| + }
|
| + /**
|
| + * Parse a variable declaration.
|
| + * <pre>
|
| + * variableDeclaration ::=
|
| + * identifier ('=' expression)?
|
| + * </pre>
|
| + * @return the variable declaration that was parsed
|
| + */
|
| + VariableDeclaration parseVariableDeclaration() {
|
| + CommentAndMetadata commentAndMetadata = parseCommentAndMetadata();
|
| + SimpleIdentifier name = parseSimpleIdentifier();
|
| + Token equals = null;
|
| + Expression initializer = null;
|
| + if (matches5(TokenType.EQ)) {
|
| + equals = andAdvance;
|
| + initializer = parseExpression2();
|
| + }
|
| + return new VariableDeclaration(commentAndMetadata.comment, commentAndMetadata.metadata, name, equals, initializer);
|
| + }
|
| + /**
|
| + * Parse a variable declaration list.
|
| + * <pre>
|
| + * variableDeclarationList ::=
|
| + * finalConstVarOrType variableDeclaration (',' variableDeclaration)
|
| + * </pre>
|
| + * @return the variable declaration list that was parsed
|
| + */
|
| + VariableDeclarationList parseVariableDeclarationList() {
|
| + FinalConstVarOrType holder = parseFinalConstVarOrType(false);
|
| + return parseVariableDeclarationList2(holder.keyword, holder.type);
|
| + }
|
| + /**
|
| + * Parse a variable declaration list.
|
| + * <pre>
|
| + * variableDeclarationList ::=
|
| + * finalConstVarOrType variableDeclaration (',' variableDeclaration)
|
| + * </pre>
|
| + * @param keyword the token representing the 'final', 'const' or 'var' keyword, or {@code null} if
|
| + * there is no keyword
|
| + * @param type the type of the variables in the list
|
| + * @return the variable declaration list that was parsed
|
| + */
|
| + VariableDeclarationList parseVariableDeclarationList2(Token keyword, TypeName type) {
|
| + List<VariableDeclaration> variables = new List<VariableDeclaration>();
|
| + variables.add(parseVariableDeclaration());
|
| + while (matches5(TokenType.COMMA)) {
|
| + advance();
|
| + variables.add(parseVariableDeclaration());
|
| + }
|
| + return new VariableDeclarationList(keyword, type, variables);
|
| + }
|
| + /**
|
| + * Parse a variable declaration statement.
|
| + * <pre>
|
| + * variableDeclarationStatement ::=
|
| + * variableDeclarationList ';'
|
| + * </pre>
|
| + * @return the variable declaration statement that was parsed
|
| + */
|
| + VariableDeclarationStatement parseVariableDeclarationStatement() {
|
| + VariableDeclarationList variableList = parseVariableDeclarationList();
|
| + Token semicolon = expect2(TokenType.SEMICOLON);
|
| + return new VariableDeclarationStatement(variableList, semicolon);
|
| + }
|
| + /**
|
| + * Parse a while statement.
|
| + * <pre>
|
| + * whileStatement ::=
|
| + * 'while' '(' expression ')' statement
|
| + * </pre>
|
| + * @return the while statement that was parsed
|
| + */
|
| + Statement parseWhileStatement() {
|
| + bool wasInLoop = _inLoop;
|
| + _inLoop = true;
|
| + try {
|
| + Token keyword = expect(Keyword.WHILE);
|
| + Token leftParenthesis = expect2(TokenType.OPEN_PAREN);
|
| + Expression condition = parseExpression2();
|
| + Token rightParenthesis = expect2(TokenType.CLOSE_PAREN);
|
| + Statement body = parseStatement2();
|
| + return new WhileStatement(keyword, leftParenthesis, condition, rightParenthesis, body);
|
| + } finally {
|
| + _inLoop = wasInLoop;
|
| + }
|
| + }
|
| + /**
|
| + * Parse a with clause.
|
| + * <pre>
|
| + * withClause ::=
|
| + * 'with' typeName (',' typeName)
|
| + * </pre>
|
| + * @return the with clause that was parsed
|
| + */
|
| + WithClause parseWithClause() {
|
| + Token with6 = expect(Keyword.WITH);
|
| + List<TypeName> types = new List<TypeName>();
|
| + types.add(parseTypeName());
|
| + while (optional(TokenType.COMMA)) {
|
| + types.add(parseTypeName());
|
| + }
|
| + return new WithClause(with6, types);
|
| + }
|
| + /**
|
| + * Return the token that is immediately after the current token. This is equivalent to{@link #peek(int) peek(1)}.
|
| + * @return the token that is immediately after the current token
|
| + */
|
| + Token peek() => _currentToken.next;
|
| + /**
|
| + * Return the token that is the given distance after the current token.
|
| + * @param distance the number of tokens to look ahead, where {@code 0} is the current token,{@code 1} is the next token, etc.
|
| + * @return the token that is the given distance after the current token
|
| + */
|
| + Token peek2(int distance) {
|
| + Token token = _currentToken;
|
| + for (int i = 0; i < distance; i++) {
|
| + token = token.next;
|
| + }
|
| + return token;
|
| + }
|
| + /**
|
| + * Report an error with the given error code and arguments.
|
| + * @param errorCode the error code of the error to be reported
|
| + * @param node the node specifying the location of the error
|
| + * @param arguments the arguments to the error, used to compose the error message
|
| + */
|
| + void reportError(ParserErrorCode errorCode, ASTNode node, List<Object> arguments) {
|
| + _errorListener.onError(new AnalysisError.con2(_source, node.offset, node.length, errorCode, [arguments]));
|
| + }
|
| + /**
|
| + * Report an error with the given error code and arguments.
|
| + * @param errorCode the error code of the error to be reported
|
| + * @param arguments the arguments to the error, used to compose the error message
|
| + */
|
| + void reportError3(ParserErrorCode errorCode, List<Object> arguments) {
|
| + reportError4(errorCode, _currentToken, arguments);
|
| + }
|
| + /**
|
| + * Report an error with the given error code and arguments.
|
| + * @param errorCode the error code of the error to be reported
|
| + * @param token the token specifying the location of the error
|
| + * @param arguments the arguments to the error, used to compose the error message
|
| + */
|
| + void reportError4(ParserErrorCode errorCode, Token token, List<Object> arguments) {
|
| + _errorListener.onError(new AnalysisError.con2(_source, token.offset, token.length, errorCode, [arguments]));
|
| + }
|
| + /**
|
| + * Parse the 'final', 'const', 'var' or type preceding a variable declaration, starting at the
|
| + * given token, without actually creating a type or changing the current token. Return the token
|
| + * following the type that was parsed, or {@code null} if the given token is not the first token
|
| + * in a valid type.
|
| + * <pre>
|
| + * finalConstVarOrType ::=
|
| + * | 'final' type?
|
| + * | 'const' type?
|
| + * | 'var'
|
| + * | type
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the type that was parsed
|
| + */
|
| + Token skipFinalConstVarOrType(Token startToken) {
|
| + if (matches3(startToken, Keyword.FINAL) || matches3(startToken, Keyword.CONST)) {
|
| + Token next2 = startToken.next;
|
| + if (matchesIdentifier2(next2.next) || matches4(next2.next, TokenType.LT) || matches3(next2.next, Keyword.THIS)) {
|
| + return skipTypeName(next2);
|
| + }
|
| + } else if (matches3(startToken, Keyword.VAR)) {
|
| + return startToken.next;
|
| + } else if (matchesIdentifier2(startToken)) {
|
| + Token next3 = startToken.next;
|
| + if (matchesIdentifier2(next3) || matches4(next3, TokenType.LT) || matches3(next3, Keyword.THIS) || (matches4(next3, TokenType.PERIOD) && matchesIdentifier2(next3.next) && (matchesIdentifier2(next3.next.next) || matches4(next3.next.next, TokenType.LT) || matches3(next3.next.next, Keyword.THIS)))) {
|
| + return skipReturnType(startToken);
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| + /**
|
| + * Parse a list of formal parameters, starting at the given token, without actually creating a
|
| + * formal parameter list or changing the current token. Return the token following the formal
|
| + * parameter list that was parsed, or {@code null} if the given token is not the first token in a
|
| + * valid list of formal parameter.
|
| + * <p>
|
| + * Note that unlike other skip methods, this method uses a heuristic. In the worst case, the
|
| + * parameters could be prefixed by metadata, which would require us to be able to skip arbitrary
|
| + * expressions. Rather than duplicate the logic of most of the parse methods we simply look for
|
| + * something that is likely to be a list of parameters and then skip to returning the token after
|
| + * the closing parenthesis.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseFormalParameterList()}.
|
| + * <pre>
|
| + * formalParameterList ::=
|
| + * '(' ')'
|
| + * | '(' normalFormalParameters (',' optionalFormalParameters)? ')'
|
| + * | '(' optionalFormalParameters ')'
|
| + * normalFormalParameters ::=
|
| + * normalFormalParameter (',' normalFormalParameter)
|
| + * optionalFormalParameters ::=
|
| + * optionalPositionalFormalParameters
|
| + * | namedFormalParameters
|
| + * optionalPositionalFormalParameters ::=
|
| + * '[' defaultFormalParameter (',' defaultFormalParameter)* ']'
|
| + * namedFormalParameters ::=
|
| + * '{' defaultNamedParameter (',' defaultNamedParameter)* '}'
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the formal parameter list that was parsed
|
| + */
|
| + Token skipFormalParameterList(Token startToken) {
|
| + if (!matches4(startToken, TokenType.OPEN_PAREN)) {
|
| + return null;
|
| + }
|
| + Token next4 = startToken.next;
|
| + if (matches4(next4, TokenType.CLOSE_PAREN)) {
|
| + return next4.next;
|
| + }
|
| + if (matchesAny(next4, [TokenType.AT, TokenType.OPEN_SQUARE_BRACKET, TokenType.OPEN_CURLY_BRACKET]) || matches3(next4, Keyword.VOID) || (matchesIdentifier2(next4) && (matchesAny(next4.next, [TokenType.COMMA, TokenType.CLOSE_PAREN])))) {
|
| + return skipPastMatchingToken(startToken);
|
| + }
|
| + if (matchesIdentifier2(next4) && matches4(next4.next, TokenType.OPEN_PAREN)) {
|
| + Token afterParameters = skipFormalParameterList(next4.next);
|
| + if (afterParameters != null && (matchesAny(afterParameters, [TokenType.COMMA, TokenType.CLOSE_PAREN]))) {
|
| + return skipPastMatchingToken(startToken);
|
| + }
|
| + }
|
| + Token afterType = skipFinalConstVarOrType(next4);
|
| + if (afterType == null) {
|
| + return null;
|
| + }
|
| + if (skipSimpleIdentifier(afterType) == null) {
|
| + return null;
|
| + }
|
| + return skipPastMatchingToken(startToken);
|
| + }
|
| + /**
|
| + * If the given token is a begin token with an associated end token, then return the token
|
| + * following the end token. Otherwise, return {@code null}.
|
| + * @param startToken the token that is assumed to be a being token
|
| + * @return the token following the matching end token
|
| + */
|
| + Token skipPastMatchingToken(Token startToken) {
|
| + if (startToken is! BeginToken) {
|
| + return null;
|
| + }
|
| + Token closeParen = (startToken as BeginToken).endToken;
|
| + if (closeParen == null) {
|
| + return null;
|
| + }
|
| + return closeParen.next;
|
| + }
|
| + /**
|
| + * Parse a prefixed identifier, starting at the given token, without actually creating a prefixed
|
| + * identifier or changing the current token. Return the token following the prefixed identifier
|
| + * that was parsed, or {@code null} if the given token is not the first token in a valid prefixed
|
| + * identifier.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parsePrefixedIdentifier()}.
|
| + * <pre>
|
| + * prefixedIdentifier ::=
|
| + * identifier ('.' identifier)?
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the prefixed identifier that was parsed
|
| + */
|
| + Token skipPrefixedIdentifier(Token startToken) {
|
| + Token token = skipSimpleIdentifier(startToken);
|
| + if (token == null) {
|
| + return null;
|
| + } else if (!matches4(token, TokenType.PERIOD)) {
|
| + return token;
|
| + }
|
| + return skipSimpleIdentifier(token.next);
|
| + }
|
| + /**
|
| + * Parse a return type, starting at the given token, without actually creating a return type or
|
| + * changing the current token. Return the token following the return type that was parsed, or{@code null} if the given token is not the first token in a valid return type.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseReturnType()}.
|
| + * <pre>
|
| + * returnType ::=
|
| + * 'void'
|
| + * | type
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the return type that was parsed
|
| + */
|
| + Token skipReturnType(Token startToken) {
|
| + if (matches3(startToken, Keyword.VOID)) {
|
| + return startToken.next;
|
| + } else {
|
| + return skipTypeName(startToken);
|
| + }
|
| + }
|
| + /**
|
| + * Parse a simple identifier, starting at the given token, without actually creating a simple
|
| + * identifier or changing the current token. Return the token following the simple identifier that
|
| + * was parsed, or {@code null} if the given token is not the first token in a valid simple
|
| + * identifier.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseSimpleIdentifier()}.
|
| + * <pre>
|
| + * identifier ::=
|
| + * IDENTIFIER
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the simple identifier that was parsed
|
| + */
|
| + Token skipSimpleIdentifier(Token startToken) {
|
| + if (matches4(startToken, TokenType.IDENTIFIER) || (matches4(startToken, TokenType.KEYWORD) && (startToken as KeywordToken).keyword.isPseudoKeyword())) {
|
| + return startToken.next;
|
| + }
|
| + return null;
|
| + }
|
| + /**
|
| + * Parse a string literal that contains interpolations, starting at the given token, without
|
| + * actually creating a string literal or changing the current token. Return the token following
|
| + * the string literal that was parsed, or {@code null} if the given token is not the first token
|
| + * in a valid string literal.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseStringInterpolation(Token)}.
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the string literal that was parsed
|
| + */
|
| + Token skipStringInterpolation(Token startToken) {
|
| + Token token = startToken;
|
| + TokenType type19 = token.type;
|
| + while (type19 == TokenType.STRING_INTERPOLATION_EXPRESSION || type19 == TokenType.STRING_INTERPOLATION_IDENTIFIER) {
|
| + if (type19 == TokenType.STRING_INTERPOLATION_EXPRESSION) {
|
| + token = token.next;
|
| + type19 = token.type;
|
| + int bracketNestingLevel = 1;
|
| + while (bracketNestingLevel > 0) {
|
| + if (type19 == TokenType.EOF) {
|
| + return null;
|
| + } else if (type19 == TokenType.OPEN_CURLY_BRACKET) {
|
| + bracketNestingLevel++;
|
| + } else if (type19 == TokenType.CLOSE_CURLY_BRACKET) {
|
| + bracketNestingLevel--;
|
| + } else if (type19 == TokenType.STRING) {
|
| + token = skipStringLiteral(token);
|
| + if (token == null) {
|
| + return null;
|
| + }
|
| + } else {
|
| + token = token.next;
|
| + }
|
| + type19 = token.type;
|
| + }
|
| + token = token.next;
|
| + type19 = token.type;
|
| + } else {
|
| + token = token.next;
|
| + if (token.type != TokenType.IDENTIFIER) {
|
| + return null;
|
| + }
|
| + token = token.next;
|
| + }
|
| + type19 = token.type;
|
| + if (type19 == TokenType.STRING) {
|
| + token = token.next;
|
| + type19 = token.type;
|
| + }
|
| + }
|
| + return token;
|
| + }
|
| + /**
|
| + * Parse a string literal, starting at the given token, without actually creating a string literal
|
| + * or changing the current token. Return the token following the string literal that was parsed,
|
| + * or {@code null} if the given token is not the first token in a valid string literal.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseStringLiteral()}.
|
| + * <pre>
|
| + * stringLiteral ::=
|
| + * MULTI_LINE_STRING+
|
| + * | SINGLE_LINE_STRING+
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the string literal that was parsed
|
| + */
|
| + Token skipStringLiteral(Token startToken) {
|
| + Token token = startToken;
|
| + while (token != null && matches4(token, TokenType.STRING)) {
|
| + token = token.next;
|
| + TokenType type20 = token.type;
|
| + if (type20 == TokenType.STRING_INTERPOLATION_EXPRESSION || type20 == TokenType.STRING_INTERPOLATION_IDENTIFIER) {
|
| + token = skipStringInterpolation(token);
|
| + }
|
| + }
|
| + if (token == startToken) {
|
| + return null;
|
| + }
|
| + return token;
|
| + }
|
| + /**
|
| + * Parse a list of type arguments, starting at the given token, without actually creating a type argument list
|
| + * or changing the current token. Return the token following the type argument list that was parsed,
|
| + * or {@code null} if the given token is not the first token in a valid type argument list.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseTypeArgumentList()}.
|
| + * <pre>
|
| + * typeArguments ::=
|
| + * '<' typeList '>'
|
| + * typeList ::=
|
| + * type (',' type)
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the type argument list that was parsed
|
| + */
|
| + Token skipTypeArgumentList(Token startToken) {
|
| + Token token = startToken;
|
| + if (!matches4(token, TokenType.LT)) {
|
| + return null;
|
| + }
|
| + token = skipTypeName(token.next);
|
| + if (token == null) {
|
| + return null;
|
| + }
|
| + while (matches4(token, TokenType.COMMA)) {
|
| + token = skipTypeName(token.next);
|
| + if (token == null) {
|
| + return null;
|
| + }
|
| + }
|
| + if (token.type == TokenType.GT) {
|
| + return token.next;
|
| + } else if (token.type == TokenType.GT_GT) {
|
| + Token second = new Token(TokenType.GT, token.offset + 1);
|
| + second.setNextWithoutSettingPrevious(token.next);
|
| + return second;
|
| + }
|
| + return null;
|
| + }
|
| + /**
|
| + * Parse a type name, starting at the given token, without actually creating a type name or
|
| + * changing the current token. Return the token following the type name that was parsed, or{@code null} if the given token is not the first token in a valid type name.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseTypeName()}.
|
| + * <pre>
|
| + * type ::=
|
| + * qualified typeArguments?
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the type name that was parsed
|
| + */
|
| + Token skipTypeName(Token startToken) {
|
| + Token token = skipPrefixedIdentifier(startToken);
|
| + if (token == null) {
|
| + return null;
|
| + }
|
| + if (matches4(token, TokenType.LT)) {
|
| + token = skipTypeArgumentList(token);
|
| + }
|
| + return token;
|
| + }
|
| + /**
|
| + * Parse a list of type parameters, starting at the given token, without actually creating a type
|
| + * parameter list or changing the current token. Return the token following the type parameter
|
| + * list that was parsed, or {@code null} if the given token is not the first token in a valid type
|
| + * parameter list.
|
| + * <p>
|
| + * This method must be kept in sync with {@link #parseTypeParameterList()}.
|
| + * <pre>
|
| + * typeParameterList ::=
|
| + * '<' typeParameter (',' typeParameter)* '>'
|
| + * </pre>
|
| + * @param startToken the token at which parsing is to begin
|
| + * @return the token following the type parameter list that was parsed
|
| + */
|
| + Token skipTypeParameterList(Token startToken) {
|
| + if (!matches4(startToken, TokenType.LT)) {
|
| + return null;
|
| + }
|
| + int depth = 1;
|
| + Token next5 = startToken.next;
|
| + while (depth > 0) {
|
| + if (matches4(next5, TokenType.EOF)) {
|
| + return null;
|
| + } else if (matches4(next5, TokenType.LT)) {
|
| + depth++;
|
| + } else if (matches4(next5, TokenType.GT)) {
|
| + depth--;
|
| + } else if (matches4(next5, TokenType.GT_EQ)) {
|
| + if (depth == 1) {
|
| + Token fakeEquals = new Token(TokenType.EQ, next5.offset + 2);
|
| + fakeEquals.setNextWithoutSettingPrevious(next5.next);
|
| + return fakeEquals;
|
| + }
|
| + depth--;
|
| + } else if (matches4(next5, TokenType.GT_GT)) {
|
| + depth -= 2;
|
| + } else if (matches4(next5, TokenType.GT_GT_EQ)) {
|
| + if (depth < 2) {
|
| + return null;
|
| + } else if (depth == 2) {
|
| + Token fakeEquals = new Token(TokenType.EQ, next5.offset + 2);
|
| + fakeEquals.setNextWithoutSettingPrevious(next5.next);
|
| + return fakeEquals;
|
| + }
|
| + depth -= 2;
|
| + }
|
| + next5 = next5.next;
|
| + }
|
| + return next5;
|
| + }
|
| + /**
|
| + * Translate the characters at the given index in the given string, appending the translated
|
| + * character to the given builder. The index is assumed to be valid.
|
| + * @param builder the builder to which the translated character is to be appended
|
| + * @param lexeme the string containing the character(s) to be translated
|
| + * @param index the index of the character to be translated
|
| + * @return the index of the next character to be translated
|
| + */
|
| + int translateCharacter(StringBuffer builder, String lexeme, int index) {
|
| + int currentChar = lexeme.charCodeAt(index);
|
| + if (currentChar != 0x5c) {
|
| + builder.addCharCode(currentChar);
|
| + return index + 1;
|
| + }
|
| + int length8 = lexeme.length;
|
| + int currentIndex = index + 1;
|
| + if (currentIndex >= length8) {
|
| + return length8;
|
| + }
|
| + currentChar = lexeme.charCodeAt(currentIndex);
|
| + if (currentChar == 0x6e) {
|
| + builder.addCharCode(0xa);
|
| + } else if (currentChar == 0x72) {
|
| + builder.addCharCode(0xd);
|
| + } else if (currentChar == 0x66) {
|
| + builder.addCharCode(0xc);
|
| + } else if (currentChar == 0x62) {
|
| + builder.addCharCode(0x8);
|
| + } else if (currentChar == 0x74) {
|
| + builder.addCharCode(0x9);
|
| + } else if (currentChar == 0x76) {
|
| + builder.addCharCode(0xb);
|
| + } else if (currentChar == 0x78) {
|
| + if (currentIndex + 2 >= length8) {
|
| + reportError3(ParserErrorCode.INVALID_HEX_ESCAPE, []);
|
| + return length8;
|
| + }
|
| + int firstDigit = lexeme.charCodeAt(currentIndex + 1);
|
| + int secondDigit = lexeme.charCodeAt(currentIndex + 2);
|
| + if (!isHexDigit(firstDigit) || !isHexDigit(secondDigit)) {
|
| + reportError3(ParserErrorCode.INVALID_HEX_ESCAPE, []);
|
| + } else {
|
| + builder.addCharCode(((Character.digit(firstDigit, 16) << 4) + Character.digit(secondDigit, 16)) as int);
|
| + }
|
| + return currentIndex + 3;
|
| + } else if (currentChar == 0x75) {
|
| + currentIndex++;
|
| + if (currentIndex >= length8) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + return length8;
|
| + }
|
| + currentChar = lexeme.charCodeAt(currentIndex);
|
| + if (currentChar == 0x7b) {
|
| + currentIndex++;
|
| + if (currentIndex >= length8) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + return length8;
|
| + }
|
| + currentChar = lexeme.charCodeAt(currentIndex);
|
| + int digitCount = 0;
|
| + int value = 0;
|
| + while (currentChar != 0x7d) {
|
| + if (!isHexDigit(currentChar)) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + currentIndex++;
|
| + while (currentIndex < length8 && lexeme.charCodeAt(currentIndex) != 0x7d) {
|
| + currentIndex++;
|
| + }
|
| + return currentIndex + 1;
|
| + }
|
| + digitCount++;
|
| + value = (value << 4) + Character.digit(currentChar, 16);
|
| + currentIndex++;
|
| + if (currentIndex >= length8) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + return length8;
|
| + }
|
| + currentChar = lexeme.charCodeAt(currentIndex);
|
| + }
|
| + if (digitCount < 1 || digitCount > 6) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + }
|
| + appendScalarValue(builder, lexeme.substring(index, currentIndex + 1), value, index, currentIndex);
|
| + return currentIndex + 1;
|
| + } else {
|
| + if (currentIndex + 3 >= length8) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + return length8;
|
| + }
|
| + int firstDigit = currentChar;
|
| + int secondDigit = lexeme.charCodeAt(currentIndex + 1);
|
| + int thirdDigit = lexeme.charCodeAt(currentIndex + 2);
|
| + int fourthDigit = lexeme.charCodeAt(currentIndex + 3);
|
| + if (!isHexDigit(firstDigit) || !isHexDigit(secondDigit) || !isHexDigit(thirdDigit) || !isHexDigit(fourthDigit)) {
|
| + reportError3(ParserErrorCode.INVALID_UNICODE_ESCAPE, []);
|
| + } else {
|
| + appendScalarValue(builder, lexeme.substring(index, currentIndex + 1), ((((((Character.digit(firstDigit, 16) << 4) + Character.digit(secondDigit, 16)) << 4) + Character.digit(thirdDigit, 16)) << 4) + Character.digit(fourthDigit, 16)), index, currentIndex + 3);
|
| + }
|
| + return currentIndex + 4;
|
| + }
|
| + } else {
|
| + builder.addCharCode(currentChar);
|
| + }
|
| + return currentIndex + 1;
|
| + }
|
| + /**
|
| + * Validate that the given parameter list does not contain any field initializers.
|
| + * @param parameterList the parameter list to be validated
|
| + */
|
| + void validateFormalParameterList(FormalParameterList parameterList) {
|
| + for (FormalParameter parameter in parameterList.parameters) {
|
| + if (parameter is FieldFormalParameter) {
|
| + reportError(ParserErrorCode.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR, (parameter as FieldFormalParameter).identifier, []);
|
| + }
|
| + }
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a class and return the 'abstract'
|
| + * keyword if there is one.
|
| + * @param modifiers the modifiers being validated
|
| + */
|
| + Token validateModifiersForClass(Modifiers modifiers) {
|
| + validateModifiersForTopLevelDeclaration(modifiers);
|
| + if (modifiers.constKeyword != null) {
|
| + reportError4(ParserErrorCode.CONST_CLASS, modifiers.constKeyword, []);
|
| + }
|
| + if (modifiers.externalKeyword != null) {
|
| + reportError4(ParserErrorCode.EXTERNAL_CLASS, modifiers.externalKeyword, []);
|
| + }
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError4(ParserErrorCode.FINAL_CLASS, modifiers.finalKeyword, []);
|
| + }
|
| + if (modifiers.varKeyword != null) {
|
| + reportError4(ParserErrorCode.VAR_CLASS, modifiers.varKeyword, []);
|
| + }
|
| + return modifiers.abstractKeyword;
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a constructor and return the
|
| + * 'const' keyword if there is one.
|
| + * @param modifiers the modifiers being validated
|
| + * @return the 'const' or 'final' keyword associated with the constructor
|
| + */
|
| + Token validateModifiersForConstructor(Modifiers modifiers) {
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
|
| + }
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError4(ParserErrorCode.FINAL_CONSTRUCTOR, modifiers.finalKeyword, []);
|
| + }
|
| + if (modifiers.staticKeyword != null) {
|
| + reportError4(ParserErrorCode.STATIC_CONSTRUCTOR, modifiers.staticKeyword, []);
|
| + }
|
| + if (modifiers.varKeyword != null) {
|
| + reportError4(ParserErrorCode.CONSTRUCTOR_WITH_RETURN_TYPE, modifiers.varKeyword, []);
|
| + }
|
| + Token externalKeyword6 = modifiers.externalKeyword;
|
| + Token constKeyword4 = modifiers.constKeyword;
|
| + Token factoryKeyword4 = modifiers.factoryKeyword;
|
| + if (externalKeyword6 != null && constKeyword4 != null && constKeyword4.offset < externalKeyword6.offset) {
|
| + reportError4(ParserErrorCode.EXTERNAL_AFTER_CONST, externalKeyword6, []);
|
| + }
|
| + if (externalKeyword6 != null && factoryKeyword4 != null && factoryKeyword4.offset < externalKeyword6.offset) {
|
| + reportError4(ParserErrorCode.EXTERNAL_AFTER_FACTORY, externalKeyword6, []);
|
| + }
|
| + return constKeyword4;
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a field and return the 'final',
|
| + * 'const' or 'var' keyword if there is one.
|
| + * @param modifiers the modifiers being validated
|
| + * @return the 'final', 'const' or 'var' keyword associated with the field
|
| + */
|
| + Token validateModifiersForField(Modifiers modifiers) {
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
|
| + }
|
| + if (modifiers.externalKeyword != null) {
|
| + reportError4(ParserErrorCode.EXTERNAL_FIELD, modifiers.externalKeyword, []);
|
| + }
|
| + if (modifiers.factoryKeyword != null) {
|
| + reportError4(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
|
| + }
|
| + Token staticKeyword3 = modifiers.staticKeyword;
|
| + Token constKeyword5 = modifiers.constKeyword;
|
| + Token finalKeyword3 = modifiers.finalKeyword;
|
| + Token varKeyword3 = modifiers.varKeyword;
|
| + if (constKeyword5 != null) {
|
| + if (finalKeyword3 != null) {
|
| + reportError4(ParserErrorCode.CONST_AND_FINAL, finalKeyword3, []);
|
| + }
|
| + if (varKeyword3 != null) {
|
| + reportError4(ParserErrorCode.CONST_AND_VAR, varKeyword3, []);
|
| + }
|
| + if (staticKeyword3 != null && constKeyword5.offset < staticKeyword3.offset) {
|
| + reportError4(ParserErrorCode.STATIC_AFTER_CONST, staticKeyword3, []);
|
| + }
|
| + } else if (finalKeyword3 != null) {
|
| + if (varKeyword3 != null) {
|
| + reportError4(ParserErrorCode.FINAL_AND_VAR, varKeyword3, []);
|
| + }
|
| + if (staticKeyword3 != null && finalKeyword3.offset < staticKeyword3.offset) {
|
| + reportError4(ParserErrorCode.STATIC_AFTER_FINAL, staticKeyword3, []);
|
| + }
|
| + } else if (varKeyword3 != null && staticKeyword3 != null && varKeyword3.offset < staticKeyword3.offset) {
|
| + reportError4(ParserErrorCode.STATIC_AFTER_VAR, staticKeyword3, []);
|
| + }
|
| + return lexicallyFirst([constKeyword5, finalKeyword3, varKeyword3]);
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a getter, setter, or method.
|
| + * @param modifiers the modifiers being validated
|
| + */
|
| + void validateModifiersForGetterOrSetterOrMethod(Modifiers modifiers) {
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
|
| + }
|
| + if (modifiers.constKeyword != null) {
|
| + reportError4(ParserErrorCode.CONST_METHOD, modifiers.constKeyword, []);
|
| + }
|
| + if (modifiers.factoryKeyword != null) {
|
| + reportError4(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
|
| + }
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError4(ParserErrorCode.FINAL_METHOD, modifiers.finalKeyword, []);
|
| + }
|
| + if (modifiers.varKeyword != null) {
|
| + reportError4(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
|
| + }
|
| + Token externalKeyword7 = modifiers.externalKeyword;
|
| + Token staticKeyword4 = modifiers.staticKeyword;
|
| + if (externalKeyword7 != null && staticKeyword4 != null && staticKeyword4.offset < externalKeyword7.offset) {
|
| + reportError4(ParserErrorCode.EXTERNAL_AFTER_STATIC, externalKeyword7, []);
|
| + }
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a getter, setter, or method.
|
| + * @param modifiers the modifiers being validated
|
| + */
|
| + void validateModifiersForOperator(Modifiers modifiers) {
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.ABSTRACT_CLASS_MEMBER, []);
|
| + }
|
| + if (modifiers.constKeyword != null) {
|
| + reportError4(ParserErrorCode.CONST_METHOD, modifiers.constKeyword, []);
|
| + }
|
| + if (modifiers.factoryKeyword != null) {
|
| + reportError4(ParserErrorCode.NON_CONSTRUCTOR_FACTORY, modifiers.factoryKeyword, []);
|
| + }
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError4(ParserErrorCode.FINAL_METHOD, modifiers.finalKeyword, []);
|
| + }
|
| + if (modifiers.staticKeyword != null) {
|
| + reportError4(ParserErrorCode.STATIC_OPERATOR, modifiers.staticKeyword, []);
|
| + }
|
| + if (modifiers.varKeyword != null) {
|
| + reportError4(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
|
| + }
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a top-level declaration.
|
| + * @param modifiers the modifiers being validated
|
| + */
|
| + void validateModifiersForTopLevelDeclaration(Modifiers modifiers) {
|
| + if (modifiers.factoryKeyword != null) {
|
| + reportError4(ParserErrorCode.FACTORY_TOP_LEVEL_DECLARATION, modifiers.factoryKeyword, []);
|
| + }
|
| + if (modifiers.staticKeyword != null) {
|
| + reportError4(ParserErrorCode.STATIC_TOP_LEVEL_DECLARATION, modifiers.staticKeyword, []);
|
| + }
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a top-level function.
|
| + * @param modifiers the modifiers being validated
|
| + */
|
| + void validateModifiersForTopLevelFunction(Modifiers modifiers) {
|
| + validateModifiersForTopLevelDeclaration(modifiers);
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.ABSTRACT_TOP_LEVEL_FUNCTION, []);
|
| + }
|
| + if (modifiers.constKeyword != null) {
|
| + reportError4(ParserErrorCode.CONST_CLASS, modifiers.constKeyword, []);
|
| + }
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError4(ParserErrorCode.FINAL_CLASS, modifiers.finalKeyword, []);
|
| + }
|
| + if (modifiers.varKeyword != null) {
|
| + reportError4(ParserErrorCode.VAR_RETURN_TYPE, modifiers.varKeyword, []);
|
| + }
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a field and return the 'final',
|
| + * 'const' or 'var' keyword if there is one.
|
| + * @param modifiers the modifiers being validated
|
| + * @return the 'final', 'const' or 'var' keyword associated with the field
|
| + */
|
| + Token validateModifiersForTopLevelVariable(Modifiers modifiers) {
|
| + validateModifiersForTopLevelDeclaration(modifiers);
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError3(ParserErrorCode.ABSTRACT_TOP_LEVEL_VARIABLE, []);
|
| + }
|
| + if (modifiers.externalKeyword != null) {
|
| + reportError4(ParserErrorCode.EXTERNAL_FIELD, modifiers.externalKeyword, []);
|
| + }
|
| + Token constKeyword6 = modifiers.constKeyword;
|
| + Token finalKeyword4 = modifiers.finalKeyword;
|
| + Token varKeyword4 = modifiers.varKeyword;
|
| + if (constKeyword6 != null) {
|
| + if (finalKeyword4 != null) {
|
| + reportError4(ParserErrorCode.CONST_AND_FINAL, finalKeyword4, []);
|
| + }
|
| + if (varKeyword4 != null) {
|
| + reportError4(ParserErrorCode.CONST_AND_VAR, varKeyword4, []);
|
| + }
|
| + } else if (finalKeyword4 != null) {
|
| + if (varKeyword4 != null) {
|
| + reportError4(ParserErrorCode.FINAL_AND_VAR, varKeyword4, []);
|
| + }
|
| + }
|
| + return lexicallyFirst([constKeyword6, finalKeyword4, varKeyword4]);
|
| + }
|
| + /**
|
| + * Validate that the given set of modifiers is appropriate for a class and return the 'abstract'
|
| + * keyword if there is one.
|
| + * @param modifiers the modifiers being validated
|
| + */
|
| + void validateModifiersForTypedef(Modifiers modifiers) {
|
| + validateModifiersForTopLevelDeclaration(modifiers);
|
| + if (modifiers.abstractKeyword != null) {
|
| + reportError4(ParserErrorCode.ABSTRACT_TYPEDEF, modifiers.abstractKeyword, []);
|
| + }
|
| + if (modifiers.constKeyword != null) {
|
| + reportError4(ParserErrorCode.CONST_TYPEDEF, modifiers.constKeyword, []);
|
| + }
|
| + if (modifiers.externalKeyword != null) {
|
| + reportError4(ParserErrorCode.EXTERNAL_TYPEDEF, modifiers.externalKeyword, []);
|
| + }
|
| + if (modifiers.finalKeyword != null) {
|
| + reportError4(ParserErrorCode.FINAL_TYPEDEF, modifiers.finalKeyword, []);
|
| + }
|
| + if (modifiers.varKeyword != null) {
|
| + reportError4(ParserErrorCode.VAR_TYPEDEF, modifiers.varKeyword, []);
|
| + }
|
| + }
|
| +}
|
| +class AnalysisErrorListener_1 implements AnalysisErrorListener {
|
| + List<bool> errorFound;
|
| + AnalysisErrorListener_1(this.errorFound);
|
| + void onError(AnalysisError error) {
|
| + errorFound[0] = true;
|
| + }
|
| +}
|
| +/**
|
| + * The enumeration {@code ParserErrorCode} defines the error codes used for errors detected by the
|
| + * parser. The convention for this class is for the name of the error code to indicate the problem
|
| + * that caused the error to be generated and for the error message to explain what is wrong and,
|
| + * when appropriate, how the problem can be corrected.
|
| + */
|
| +class ParserErrorCode implements ErrorCode {
|
| + static final ParserErrorCode ABSTRACT_CLASS_MEMBER = new ParserErrorCode.con2('ABSTRACT_CLASS_MEMBER', 0, "Members of classes cannot be declared to be 'abstract'");
|
| + static final ParserErrorCode ABSTRACT_STATIC_METHOD = new ParserErrorCode.con2('ABSTRACT_STATIC_METHOD', 1, "Static methods cannot be declared to be 'abstract'");
|
| + static final ParserErrorCode ABSTRACT_TOP_LEVEL_FUNCTION = new ParserErrorCode.con2('ABSTRACT_TOP_LEVEL_FUNCTION', 2, "Top-level functions cannot be declared to be 'abstract'");
|
| + static final ParserErrorCode ABSTRACT_TOP_LEVEL_VARIABLE = new ParserErrorCode.con2('ABSTRACT_TOP_LEVEL_VARIABLE', 3, "Top-level variables cannot be declared to be 'abstract'");
|
| + static final ParserErrorCode ABSTRACT_TYPEDEF = new ParserErrorCode.con2('ABSTRACT_TYPEDEF', 4, "Type aliases cannot be declared to be 'abstract'");
|
| + static final ParserErrorCode BREAK_OUTSIDE_OF_LOOP = new ParserErrorCode.con2('BREAK_OUTSIDE_OF_LOOP', 5, "A break statement cannot be used outside of a loop or switch statement");
|
| + static final ParserErrorCode BUILT_IN_IDENTIFIER_AS_TYPE_NAME = new ParserErrorCode.con2('BUILT_IN_IDENTIFIER_AS_TYPE_NAME', 6, "The built-in identifier '%s' cannot be used as a type name");
|
| + static final ParserErrorCode BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME = new ParserErrorCode.con2('BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME', 7, "The built-in identifier '%s' cannot be used as a type alias name");
|
| + static final ParserErrorCode BUILT_IN_IDENTIFIER_AS_TYPE_VARIABLE_NAME = new ParserErrorCode.con2('BUILT_IN_IDENTIFIER_AS_TYPE_VARIABLE_NAME', 8, "The built-in identifier '%s' cannot be used as a type variable name");
|
| + static final ParserErrorCode CONST_AND_FINAL = new ParserErrorCode.con2('CONST_AND_FINAL', 9, "Members cannot be declared to be both 'const' and 'final'");
|
| + static final ParserErrorCode CONST_AND_VAR = new ParserErrorCode.con2('CONST_AND_VAR', 10, "Members cannot be declared to be both 'const' and 'var'");
|
| + static final ParserErrorCode CONST_CLASS = new ParserErrorCode.con2('CONST_CLASS', 11, "Classes cannot be declared to be 'const'");
|
| + static final ParserErrorCode CONST_METHOD = new ParserErrorCode.con2('CONST_METHOD', 12, "Getters, setters and methods cannot be declared to be 'const'");
|
| + static final ParserErrorCode CONST_TYPEDEF = new ParserErrorCode.con2('CONST_TYPEDEF', 13, "Type aliases cannot be declared to be 'const'");
|
| + static final ParserErrorCode CONSTRUCTOR_WITH_RETURN_TYPE = new ParserErrorCode.con2('CONSTRUCTOR_WITH_RETURN_TYPE', 14, "Constructors cannot have a return type");
|
| + static final ParserErrorCode CONTINUE_OUTSIDE_OF_LOOP = new ParserErrorCode.con2('CONTINUE_OUTSIDE_OF_LOOP', 15, "A continue statement cannot be used outside of a loop or switch statement");
|
| + static final ParserErrorCode CONTINUE_WITHOUT_LABEL_IN_CASE = new ParserErrorCode.con2('CONTINUE_WITHOUT_LABEL_IN_CASE', 16, "A continue statement in a switch statement must have a label as a target");
|
| + static final ParserErrorCode DIRECTIVE_AFTER_DECLARATION = new ParserErrorCode.con2('DIRECTIVE_AFTER_DECLARATION', 17, "Directives must appear before any declarations");
|
| + static final ParserErrorCode DUPLICATE_LABEL_IN_SWITCH_STATEMENT = new ParserErrorCode.con2('DUPLICATE_LABEL_IN_SWITCH_STATEMENT', 18, "The label %s was already used in this switch statement");
|
| + static final ParserErrorCode DUPLICATED_MODIFIER = new ParserErrorCode.con2('DUPLICATED_MODIFIER', 19, "The modifier '%s' was already specified.");
|
| + static final ParserErrorCode EXPECTED_CASE_OR_DEFAULT = new ParserErrorCode.con2('EXPECTED_CASE_OR_DEFAULT', 20, "Expected 'case' or 'default'");
|
| + static final ParserErrorCode EXPECTED_LIST_OR_MAP_LITERAL = new ParserErrorCode.con2('EXPECTED_LIST_OR_MAP_LITERAL', 21, "Expected a list or map literal");
|
| + static final ParserErrorCode EXPECTED_STRING_LITERAL = new ParserErrorCode.con2('EXPECTED_STRING_LITERAL', 22, "Expected a string literal");
|
| + static final ParserErrorCode EXPECTED_TOKEN = new ParserErrorCode.con2('EXPECTED_TOKEN', 23, "Expected to find: %s");
|
| + static final ParserErrorCode EXPORT_DIRECTIVE_AFTER_PART_DIRECTIVE = new ParserErrorCode.con2('EXPORT_DIRECTIVE_AFTER_PART_DIRECTIVE', 24, "Export directives must preceed part directives");
|
| + static final ParserErrorCode EXTERNAL_AFTER_CONST = new ParserErrorCode.con2('EXTERNAL_AFTER_CONST', 25, "The modifier 'external' should be before the modifier 'const'");
|
| + static final ParserErrorCode EXTERNAL_AFTER_FACTORY = new ParserErrorCode.con2('EXTERNAL_AFTER_FACTORY', 26, "The modifier 'external' should be before the modifier 'factory'");
|
| + static final ParserErrorCode EXTERNAL_AFTER_STATIC = new ParserErrorCode.con2('EXTERNAL_AFTER_STATIC', 27, "The modifier 'external' should be before the modifier 'static'");
|
| + static final ParserErrorCode EXTERNAL_CLASS = new ParserErrorCode.con2('EXTERNAL_CLASS', 28, "Classes cannot be declared to be 'external'");
|
| + static final ParserErrorCode EXTERNAL_CONSTRUCTOR_WITH_BODY = new ParserErrorCode.con2('EXTERNAL_CONSTRUCTOR_WITH_BODY', 29, "External constructors cannot have a body");
|
| + static final ParserErrorCode EXTERNAL_FIELD = new ParserErrorCode.con2('EXTERNAL_FIELD', 30, "Fields cannot be declared to be 'external'");
|
| + static final ParserErrorCode EXTERNAL_GETTER_WITH_BODY = new ParserErrorCode.con2('EXTERNAL_GETTER_WITH_BODY', 31, "External getters cannot have a body");
|
| + static final ParserErrorCode EXTERNAL_METHOD_WITH_BODY = new ParserErrorCode.con2('EXTERNAL_METHOD_WITH_BODY', 32, "External methods cannot have a body");
|
| + static final ParserErrorCode EXTERNAL_OPERATOR_WITH_BODY = new ParserErrorCode.con2('EXTERNAL_OPERATOR_WITH_BODY', 33, "External operators cannot have a body");
|
| + static final ParserErrorCode EXTERNAL_SETTER_WITH_BODY = new ParserErrorCode.con2('EXTERNAL_SETTER_WITH_BODY', 34, "External setters cannot have a body");
|
| + static final ParserErrorCode EXTERNAL_TYPEDEF = new ParserErrorCode.con2('EXTERNAL_TYPEDEF', 35, "Type aliases cannot be declared to be 'external'");
|
| + static final ParserErrorCode FACTORY_TOP_LEVEL_DECLARATION = new ParserErrorCode.con2('FACTORY_TOP_LEVEL_DECLARATION', 36, "Top-level declarations cannot be declared to be 'factory'");
|
| + static final ParserErrorCode FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR = new ParserErrorCode.con2('FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR', 37, "Field initializers can only be used in a constructor");
|
| + static final ParserErrorCode FINAL_AND_VAR = new ParserErrorCode.con2('FINAL_AND_VAR', 38, "Members cannot be declared to be both 'final' and 'var'");
|
| + static final ParserErrorCode FINAL_CLASS = new ParserErrorCode.con2('FINAL_CLASS', 39, "Classes cannot be declared to be 'final'");
|
| + static final ParserErrorCode FINAL_CONSTRUCTOR = new ParserErrorCode.con2('FINAL_CONSTRUCTOR', 40, "A constructor cannot be declared to be 'final'");
|
| + static final ParserErrorCode FINAL_METHOD = new ParserErrorCode.con2('FINAL_METHOD', 41, "Getters, setters and methods cannot be declared to be 'final'");
|
| + static final ParserErrorCode FINAL_TYPEDEF = new ParserErrorCode.con2('FINAL_TYPEDEF', 42, "Type aliases cannot be declared to be 'final'");
|
| + static final ParserErrorCode GETTER_WITH_PARAMETERS = new ParserErrorCode.con2('GETTER_WITH_PARAMETERS', 43, "Getter should be declared without a parameter list");
|
| + static final ParserErrorCode ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE = new ParserErrorCode.con2('ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE', 44, "Illegal assignment to non-assignable expression");
|
| + static final ParserErrorCode IMPLEMENTS_BEFORE_EXTENDS = new ParserErrorCode.con2('IMPLEMENTS_BEFORE_EXTENDS', 45, "The extends clause must be before the implements clause");
|
| + static final ParserErrorCode IMPLEMENTS_BEFORE_WITH = new ParserErrorCode.con2('IMPLEMENTS_BEFORE_WITH', 46, "The with clause must be before the implements clause");
|
| + static final ParserErrorCode IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE = new ParserErrorCode.con2('IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE', 47, "Import directives must preceed part directives");
|
| + static final ParserErrorCode INITIALIZED_VARIABLE_IN_FOR_EACH = new ParserErrorCode.con2('INITIALIZED_VARIABLE_IN_FOR_EACH', 48, "The loop variable in a for-each loop cannot be initialized");
|
| + static final ParserErrorCode INVALID_CODE_POINT = new ParserErrorCode.con2('INVALID_CODE_POINT', 49, "The escape sequence '%s' is not a valid code point");
|
| + static final ParserErrorCode INVALID_COMMENT_REFERENCE = new ParserErrorCode.con2('INVALID_COMMENT_REFERENCE', 50, "Comment references should contain a possibly prefixed identifier and can start with 'new', but should not contain anything else");
|
| + static final ParserErrorCode INVALID_HEX_ESCAPE = new ParserErrorCode.con2('INVALID_HEX_ESCAPE', 51, "An escape sequence starting with '\\x' must be followed by 2 hexidecimal digits");
|
| + static final ParserErrorCode INVALID_OPERATOR_FOR_SUPER = new ParserErrorCode.con2('INVALID_OPERATOR_FOR_SUPER', 52, "The operator '%s' cannot be used with 'super'");
|
| + static final ParserErrorCode INVALID_UNICODE_ESCAPE = new ParserErrorCode.con2('INVALID_UNICODE_ESCAPE', 53, "An escape sequence starting with '\\u' must be followed by 4 hexidecimal digits or from 1 to 6 digits between '{' and '}'");
|
| + static final ParserErrorCode LIBRARY_DIRECTIVE_NOT_FIRST = new ParserErrorCode.con2('LIBRARY_DIRECTIVE_NOT_FIRST', 54, "The library directive must appear before all other directives");
|
| + static final ParserErrorCode MISSING_ASSIGNABLE_SELECTOR = new ParserErrorCode.con2('MISSING_ASSIGNABLE_SELECTOR', 55, "Missing selector such as \".<identifier>\" or \"[0]\"");
|
| + static final ParserErrorCode MISSING_CATCH_OR_FINALLY = new ParserErrorCode.con2('MISSING_CATCH_OR_FINALLY', 56, "A try statement must have either a catch or finally clause");
|
| + static final ParserErrorCode MISSING_CLASS_BODY = new ParserErrorCode.con2('MISSING_CLASS_BODY', 57, "A class definition must have a body, even if it is empty");
|
| + static final ParserErrorCode MISSING_CONST_FINAL_VAR_OR_TYPE = new ParserErrorCode.con2('MISSING_CONST_FINAL_VAR_OR_TYPE', 58, "Variables must be declared using the keywords 'const', 'final', 'var' or a type name");
|
| + static final ParserErrorCode MISSING_FUNCTION_BODY = new ParserErrorCode.con2('MISSING_FUNCTION_BODY', 59, "A function body must be provided");
|
| + static final ParserErrorCode MISSING_FUNCTION_PARAMETERS = new ParserErrorCode.con2('MISSING_FUNCTION_PARAMETERS', 60, "Functions must have an explicit list of parameters");
|
| + static final ParserErrorCode MISSING_IDENTIFIER = new ParserErrorCode.con2('MISSING_IDENTIFIER', 61, "Expected an identifier");
|
| + static final ParserErrorCode MISSING_NAME_IN_LIBRARY_DIRECTIVE = new ParserErrorCode.con2('MISSING_NAME_IN_LIBRARY_DIRECTIVE', 62, "Library directives must include a library name");
|
| + static final ParserErrorCode MISSING_NAME_IN_PART_OF_DIRECTIVE = new ParserErrorCode.con2('MISSING_NAME_IN_PART_OF_DIRECTIVE', 63, "Library directives must include a library name");
|
| + static final ParserErrorCode MISSING_TYPEDEF_PARAMETERS = new ParserErrorCode.con2('MISSING_TYPEDEF_PARAMETERS', 64, "Type aliases for functions must have an explicit list of parameters");
|
| + static final ParserErrorCode MISSING_VARIABLE_IN_FOR_EACH = new ParserErrorCode.con2('MISSING_VARIABLE_IN_FOR_EACH', 65, "A loop variable must be declared in a for-each loop before the 'in', but none were found");
|
| + static final ParserErrorCode MIXED_PARAMETER_GROUPS = new ParserErrorCode.con2('MIXED_PARAMETER_GROUPS', 66, "Cannot have both positional and named parameters in a single parameter list");
|
| + static final ParserErrorCode MULTIPLE_EXTENDS_CLAUSES = new ParserErrorCode.con2('MULTIPLE_EXTENDS_CLAUSES', 67, "Each class definition can have at most one extends clause");
|
| + static final ParserErrorCode MULTIPLE_IMPLEMENTS_CLAUSES = new ParserErrorCode.con2('MULTIPLE_IMPLEMENTS_CLAUSES', 68, "Each class definition can have at most one implements clause");
|
| + static final ParserErrorCode MULTIPLE_LIBRARY_DIRECTIVES = new ParserErrorCode.con2('MULTIPLE_LIBRARY_DIRECTIVES', 69, "Only one library directive may be declared in a file");
|
| + static final ParserErrorCode MULTIPLE_NAMED_PARAMETER_GROUPS = new ParserErrorCode.con2('MULTIPLE_NAMED_PARAMETER_GROUPS', 70, "Cannot have multiple groups of named parameters in a single parameter list");
|
| + static final ParserErrorCode MULTIPLE_PART_OF_DIRECTIVES = new ParserErrorCode.con2('MULTIPLE_PART_OF_DIRECTIVES', 71, "Only one part-of directive may be declared in a file");
|
| + static final ParserErrorCode MULTIPLE_POSITIONAL_PARAMETER_GROUPS = new ParserErrorCode.con2('MULTIPLE_POSITIONAL_PARAMETER_GROUPS', 72, "Cannot have multiple groups of positional parameters in a single parameter list");
|
| + static final ParserErrorCode MULTIPLE_VARIABLES_IN_FOR_EACH = new ParserErrorCode.con2('MULTIPLE_VARIABLES_IN_FOR_EACH', 73, "A single loop variable must be declared in a for-each loop before the 'in', but %s were found");
|
| + static final ParserErrorCode MULTIPLE_WITH_CLAUSES = new ParserErrorCode.con2('MULTIPLE_WITH_CLAUSES', 74, "Each class definition can have at most one with clause");
|
| + static final ParserErrorCode NAMED_PARAMETER_OUTSIDE_GROUP = new ParserErrorCode.con2('NAMED_PARAMETER_OUTSIDE_GROUP', 75, "Named parameters must be enclosed in curly braces ('{' and '}')");
|
| + static final ParserErrorCode NON_CONSTRUCTOR_FACTORY = new ParserErrorCode.con2('NON_CONSTRUCTOR_FACTORY', 76, "Only constructors can be declared to be a 'factory'");
|
| + static final ParserErrorCode NON_IDENTIFIER_LIBRARY_NAME = new ParserErrorCode.con2('NON_IDENTIFIER_LIBRARY_NAME', 77, "The name of a library must be an identifier");
|
| + static final ParserErrorCode NON_PART_OF_DIRECTIVE_IN_PART = new ParserErrorCode.con2('NON_PART_OF_DIRECTIVE_IN_PART', 78, "The part-of directive must be the only directive in a part");
|
| + static final ParserErrorCode NON_USER_DEFINABLE_OPERATOR = new ParserErrorCode.con2('NON_USER_DEFINABLE_OPERATOR', 79, "The operator '%s' is not user definable");
|
| + static final ParserErrorCode POSITIONAL_AFTER_NAMED_ARGUMENT = new ParserErrorCode.con2('POSITIONAL_AFTER_NAMED_ARGUMENT', 80, "Positional arguments must occur before named arguments");
|
| + static final ParserErrorCode POSITIONAL_PARAMETER_OUTSIDE_GROUP = new ParserErrorCode.con2('POSITIONAL_PARAMETER_OUTSIDE_GROUP', 81, "Positional parameters must be enclosed in square brackets ('[' and ']')");
|
| + static final ParserErrorCode STATIC_AFTER_CONST = new ParserErrorCode.con2('STATIC_AFTER_CONST', 82, "The modifier 'static' should be before the modifier 'const'");
|
| + static final ParserErrorCode STATIC_AFTER_FINAL = new ParserErrorCode.con2('STATIC_AFTER_FINAL', 83, "The modifier 'static' should be before the modifier 'final'");
|
| + static final ParserErrorCode STATIC_AFTER_VAR = new ParserErrorCode.con2('STATIC_AFTER_VAR', 84, "The modifier 'static' should be before the modifier 'var'");
|
| + static final ParserErrorCode STATIC_CONSTRUCTOR = new ParserErrorCode.con2('STATIC_CONSTRUCTOR', 85, "Constructors cannot be static");
|
| + static final ParserErrorCode STATIC_OPERATOR = new ParserErrorCode.con2('STATIC_OPERATOR', 86, "Operators cannot be static");
|
| + static final ParserErrorCode STATIC_TOP_LEVEL_DECLARATION = new ParserErrorCode.con2('STATIC_TOP_LEVEL_DECLARATION', 87, "Top-level declarations cannot be declared to be 'static'");
|
| + static final ParserErrorCode UNEXPECTED_TOKEN = new ParserErrorCode.con2('UNEXPECTED_TOKEN', 88, "Unexpected token '%s'");
|
| + static final ParserErrorCode USE_OF_UNARY_PLUS_OPERATOR = new ParserErrorCode.con2('USE_OF_UNARY_PLUS_OPERATOR', 89, "There is no unary plus operator in Dart");
|
| + static final ParserErrorCode WITH_BEFORE_EXTENDS = new ParserErrorCode.con2('WITH_BEFORE_EXTENDS', 90, "The extends clause must be before the with clause");
|
| + static final ParserErrorCode WITH_WITHOUT_EXTENDS = new ParserErrorCode.con2('WITH_WITHOUT_EXTENDS', 91, "The with clause cannot be used without an extends clause");
|
| + static final ParserErrorCode WRONG_SEPARATOR_FOR_NAMED_PARAMETER = new ParserErrorCode.con2('WRONG_SEPARATOR_FOR_NAMED_PARAMETER', 92, "The default value of a named parameter should be preceeded by ':'");
|
| + static final ParserErrorCode WRONG_SEPARATOR_FOR_POSITIONAL_PARAMETER = new ParserErrorCode.con2('WRONG_SEPARATOR_FOR_POSITIONAL_PARAMETER', 93, "The default value of a positional parameter should be preceeded by '='");
|
| + static final ParserErrorCode VAR_CLASS = new ParserErrorCode.con2('VAR_CLASS', 94, "Classes cannot be declared to be 'var'");
|
| + static final ParserErrorCode VAR_RETURN_TYPE = new ParserErrorCode.con2('VAR_RETURN_TYPE', 95, "The return type cannot be 'var'");
|
| + static final ParserErrorCode VAR_TYPEDEF = new ParserErrorCode.con2('VAR_TYPEDEF', 96, "Type aliases cannot be declared to be 'var'");
|
| + static final ParserErrorCode VOID_PARAMETER = new ParserErrorCode.con2('VOID_PARAMETER', 97, "Parameters cannot have a type of 'void'");
|
| + static final ParserErrorCode VOID_VARIABLE = new ParserErrorCode.con2('VOID_VARIABLE', 98, "Variables cannot have a type of 'void'");
|
| + static final List<ParserErrorCode> values = [ABSTRACT_CLASS_MEMBER, ABSTRACT_STATIC_METHOD, ABSTRACT_TOP_LEVEL_FUNCTION, ABSTRACT_TOP_LEVEL_VARIABLE, ABSTRACT_TYPEDEF, BREAK_OUTSIDE_OF_LOOP, BUILT_IN_IDENTIFIER_AS_TYPE_NAME, BUILT_IN_IDENTIFIER_AS_TYPEDEF_NAME, BUILT_IN_IDENTIFIER_AS_TYPE_VARIABLE_NAME, CONST_AND_FINAL, CONST_AND_VAR, CONST_CLASS, CONST_METHOD, CONST_TYPEDEF, CONSTRUCTOR_WITH_RETURN_TYPE, CONTINUE_OUTSIDE_OF_LOOP, CONTINUE_WITHOUT_LABEL_IN_CASE, DIRECTIVE_AFTER_DECLARATION, DUPLICATE_LABEL_IN_SWITCH_STATEMENT, DUPLICATED_MODIFIER, EXPECTED_CASE_OR_DEFAULT, EXPECTED_LIST_OR_MAP_LITERAL, EXPECTED_STRING_LITERAL, EXPECTED_TOKEN, EXPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, EXTERNAL_AFTER_CONST, EXTERNAL_AFTER_FACTORY, EXTERNAL_AFTER_STATIC, EXTERNAL_CLASS, EXTERNAL_CONSTRUCTOR_WITH_BODY, EXTERNAL_FIELD, EXTERNAL_GETTER_WITH_BODY, EXTERNAL_METHOD_WITH_BODY, EXTERNAL_OPERATOR_WITH_BODY, EXTERNAL_SETTER_WITH_BODY, EXTERNAL_TYPEDEF, FACTORY_TOP_LEVEL_DECLARATION, FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR, FINAL_AND_VAR, FINAL_CLASS, FINAL_CONSTRUCTOR, FINAL_METHOD, FINAL_TYPEDEF, GETTER_WITH_PARAMETERS, ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE, IMPLEMENTS_BEFORE_EXTENDS, IMPLEMENTS_BEFORE_WITH, IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE, INITIALIZED_VARIABLE_IN_FOR_EACH, INVALID_CODE_POINT, INVALID_COMMENT_REFERENCE, INVALID_HEX_ESCAPE, INVALID_OPERATOR_FOR_SUPER, INVALID_UNICODE_ESCAPE, LIBRARY_DIRECTIVE_NOT_FIRST, MISSING_ASSIGNABLE_SELECTOR, MISSING_CATCH_OR_FINALLY, MISSING_CLASS_BODY, MISSING_CONST_FINAL_VAR_OR_TYPE, MISSING_FUNCTION_BODY, MISSING_FUNCTION_PARAMETERS, MISSING_IDENTIFIER, MISSING_NAME_IN_LIBRARY_DIRECTIVE, MISSING_NAME_IN_PART_OF_DIRECTIVE, MISSING_TYPEDEF_PARAMETERS, MISSING_VARIABLE_IN_FOR_EACH, MIXED_PARAMETER_GROUPS, MULTIPLE_EXTENDS_CLAUSES, MULTIPLE_IMPLEMENTS_CLAUSES, MULTIPLE_LIBRARY_DIRECTIVES, MULTIPLE_NAMED_PARAMETER_GROUPS, MULTIPLE_PART_OF_DIRECTIVES, MULTIPLE_POSITIONAL_PARAMETER_GROUPS, MULTIPLE_VARIABLES_IN_FOR_EACH, MULTIPLE_WITH_CLAUSES, NAMED_PARAMETER_OUTSIDE_GROUP, NON_CONSTRUCTOR_FACTORY, NON_IDENTIFIER_LIBRARY_NAME, NON_PART_OF_DIRECTIVE_IN_PART, NON_USER_DEFINABLE_OPERATOR, POSITIONAL_AFTER_NAMED_ARGUMENT, POSITIONAL_PARAMETER_OUTSIDE_GROUP, STATIC_AFTER_CONST, STATIC_AFTER_FINAL, STATIC_AFTER_VAR, STATIC_CONSTRUCTOR, STATIC_OPERATOR, STATIC_TOP_LEVEL_DECLARATION, UNEXPECTED_TOKEN, USE_OF_UNARY_PLUS_OPERATOR, WITH_BEFORE_EXTENDS, WITH_WITHOUT_EXTENDS, WRONG_SEPARATOR_FOR_NAMED_PARAMETER, WRONG_SEPARATOR_FOR_POSITIONAL_PARAMETER, VAR_CLASS, VAR_RETURN_TYPE, VAR_TYPEDEF, VOID_PARAMETER, VOID_VARIABLE];
|
| + String __name;
|
| + int __ordinal = 0;
|
| + /**
|
| + * The severity of this error.
|
| + */
|
| + ErrorSeverity _severity;
|
| + /**
|
| + * The message template used to create the message to be displayed for this error.
|
| + */
|
| + String _message;
|
| + /**
|
| + * Initialize a newly created error code to have the given severity and message.
|
| + * @param severity the severity of the error
|
| + * @param message the message template used to create the message to be displayed for the error
|
| + */
|
| + ParserErrorCode.con1(String ___name, int ___ordinal, ErrorSeverity severity, String message) {
|
| + _jtd_constructor_208_impl(___name, ___ordinal, severity, message);
|
| + }
|
| + _jtd_constructor_208_impl(String ___name, int ___ordinal, ErrorSeverity severity, String message) {
|
| + __name = ___name;
|
| + __ordinal = ___ordinal;
|
| + this._severity = severity;
|
| + this._message = message;
|
| + }
|
| + /**
|
| + * Initialize a newly created error code to have the given message and a severity of ERROR.
|
| + * @param message the message template used to create the message to be displayed for the error
|
| + */
|
| + ParserErrorCode.con2(String ___name, int ___ordinal, String message) {
|
| + _jtd_constructor_209_impl(___name, ___ordinal, message);
|
| + }
|
| + _jtd_constructor_209_impl(String ___name, int ___ordinal, String message) {
|
| + _jtd_constructor_208_impl(___name, ___ordinal, ErrorSeverity.ERROR, message);
|
| + }
|
| + ErrorSeverity get errorSeverity => _severity;
|
| + String get message => _message;
|
| + ErrorType get type => ErrorType.SYNTACTIC_ERROR;
|
| + bool needsRecompilation() => true;
|
| + String toString() => __name;
|
| +}
|
| +/**
|
| + * Instances of the class {link ToFormattedSourceVisitor} write a source representation of a visited
|
| + * AST node (and all of it's children) to a writer.
|
| + */
|
| +class ToFormattedSourceVisitor implements ASTVisitor<Object> {
|
| + /**
|
| + * The writer to which the source is to be written.
|
| + */
|
| + PrintWriter _writer;
|
| + int _indentLevel = 0;
|
| + String _indentString = "";
|
| + /**
|
| + * Initialize a newly created visitor to write source code representing the visited nodes to the
|
| + * given writer.
|
| + * @param writer the writer to which the source is to be written
|
| + */
|
| + ToFormattedSourceVisitor(PrintWriter writer) {
|
| + this._writer = writer;
|
| + }
|
| + Object visitAdjacentStrings(AdjacentStrings node) {
|
| + visitList5(node.strings, " ");
|
| + return null;
|
| + }
|
| + Object visitAnnotation(Annotation node) {
|
| + _writer.print('@');
|
| + visit(node.name);
|
| + visit7(".", node.constructorName);
|
| + visit(node.arguments);
|
| + return null;
|
| + }
|
| + Object visitArgumentDefinitionTest(ArgumentDefinitionTest node) {
|
| + _writer.print('?');
|
| + visit(node.identifier);
|
| + return null;
|
| + }
|
| + Object visitArgumentList(ArgumentList node) {
|
| + _writer.print('(');
|
| + visitList5(node.arguments, ", ");
|
| + _writer.print(')');
|
| + return null;
|
| + }
|
| + Object visitAsExpression(AsExpression node) {
|
| + visit(node.expression);
|
| + _writer.print(" as ");
|
| + visit(node.type);
|
| + return null;
|
| + }
|
| + Object visitAssertStatement(AssertStatement node) {
|
| + _writer.print("assert(");
|
| + visit(node.condition);
|
| + _writer.print(");");
|
| + return null;
|
| + }
|
| + Object visitAssignmentExpression(AssignmentExpression node) {
|
| + visit(node.leftHandSide);
|
| + _writer.print(' ');
|
| + _writer.print(node.operator.lexeme);
|
| + _writer.print(' ');
|
| + visit(node.rightHandSide);
|
| + return null;
|
| + }
|
| + Object visitBinaryExpression(BinaryExpression node) {
|
| + visit(node.leftOperand);
|
| + _writer.print(' ');
|
| + _writer.print(node.operator.lexeme);
|
| + _writer.print(' ');
|
| + visit(node.rightOperand);
|
| + return null;
|
| + }
|
| + Object visitBlock(Block node) {
|
| + _writer.print('{');
|
| + {
|
| + indentInc();
|
| + visitList5(node.statements, "\n");
|
| + indentDec();
|
| + }
|
| + nl2();
|
| + _writer.print('}');
|
| + return null;
|
| + }
|
| + Object visitBlockFunctionBody(BlockFunctionBody node) {
|
| + visit(node.block);
|
| + return null;
|
| + }
|
| + Object visitBooleanLiteral(BooleanLiteral node) {
|
| + _writer.print(node.literal.lexeme);
|
| + return null;
|
| + }
|
| + Object visitBreakStatement(BreakStatement node) {
|
| + _writer.print("break");
|
| + visit7(" ", node.label);
|
| + _writer.print(";");
|
| + return null;
|
| + }
|
| + Object visitCascadeExpression(CascadeExpression node) {
|
| + visit(node.target);
|
| + visitList(node.cascadeSections);
|
| + return null;
|
| + }
|
| + Object visitCatchClause(CatchClause node) {
|
| + visit7("on ", node.exceptionType);
|
| + if (node.catchKeyword != null) {
|
| + if (node.exceptionType != null) {
|
| + _writer.print(' ');
|
| + }
|
| + _writer.print("catch (");
|
| + visit(node.exceptionParameter);
|
| + visit7(", ", node.stackTraceParameter);
|
| + _writer.print(") ");
|
| + } else {
|
| + _writer.print(" ");
|
| + }
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitClassDeclaration(ClassDeclaration node) {
|
| + visit(node.documentationComment);
|
| + visit8(node.abstractKeyword, " ");
|
| + _writer.print("class ");
|
| + visit(node.name);
|
| + visit(node.typeParameters);
|
| + visit7(" ", node.extendsClause);
|
| + visit7(" ", node.withClause);
|
| + visit7(" ", node.implementsClause);
|
| + _writer.print(" {");
|
| + {
|
| + indentInc();
|
| + visitList5(node.members, "\n");
|
| + indentDec();
|
| + }
|
| + nl2();
|
| + _writer.print("}");
|
| + return null;
|
| + }
|
| + Object visitClassTypeAlias(ClassTypeAlias node) {
|
| + _writer.print("typedef ");
|
| + visit(node.name);
|
| + visit(node.typeParameters);
|
| + _writer.print(" = ");
|
| + if (node.abstractKeyword != null) {
|
| + _writer.print("abstract ");
|
| + }
|
| + visit(node.superclass);
|
| + visit7(" ", node.withClause);
|
| + visit7(" ", node.implementsClause);
|
| + _writer.print(";");
|
| + return null;
|
| + }
|
| + Object visitComment(Comment node) {
|
| + Token token = node.beginToken;
|
| + while (token != null) {
|
| + bool firstLine = true;
|
| + for (String line in StringUtils.split(token.lexeme, "\n")) {
|
| + if (firstLine) {
|
| + firstLine = false;
|
| + } else {
|
| + line = " ${line.trim()}";
|
| + line = StringUtils.replace(line, "/*", "/ *");
|
| + }
|
| + _writer.print(line);
|
| + nl2();
|
| + }
|
| + if (token == node.endToken) {
|
| + break;
|
| + }
|
| + }
|
| + return null;
|
| + }
|
| + Object visitCommentReference(CommentReference node) => null;
|
| + Object visitCompilationUnit(CompilationUnit node) {
|
| + ScriptTag scriptTag5 = node.scriptTag;
|
| + NodeList<Directive> directives4 = node.directives;
|
| + visit(scriptTag5);
|
| + String prefix = scriptTag5 == null ? "" : " ";
|
| + visitList7(prefix, directives4, "\n");
|
| + prefix = scriptTag5 == null && directives4.isEmpty ? "" : "\n\n";
|
| + visitList7(prefix, node.declarations, "\n");
|
| + return null;
|
| + }
|
| + Object visitConditionalExpression(ConditionalExpression node) {
|
| + visit(node.condition);
|
| + _writer.print(" ? ");
|
| + visit(node.thenExpression);
|
| + _writer.print(" : ");
|
| + visit(node.elseExpression);
|
| + return null;
|
| + }
|
| + Object visitConstructorDeclaration(ConstructorDeclaration node) {
|
| + visit(node.documentationComment);
|
| + visit8(node.externalKeyword, " ");
|
| + visit8(node.constKeyword, " ");
|
| + visit8(node.factoryKeyword, " ");
|
| + visit(node.returnType);
|
| + visit7(".", node.name);
|
| + visit(node.parameters);
|
| + visitList7(" : ", node.initializers, ", ");
|
| + visit7(" = ", node.redirectedConstructor);
|
| + if (node.body is! EmptyFunctionBody) {
|
| + _writer.print(' ');
|
| + }
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitConstructorFieldInitializer(ConstructorFieldInitializer node) {
|
| + visit8(node.keyword, ".");
|
| + visit(node.fieldName);
|
| + _writer.print(" = ");
|
| + visit(node.expression);
|
| + return null;
|
| + }
|
| + Object visitConstructorName(ConstructorName node) {
|
| + visit(node.type);
|
| + visit7(".", node.name);
|
| + return null;
|
| + }
|
| + Object visitContinueStatement(ContinueStatement node) {
|
| + _writer.print("continue");
|
| + visit7(" ", node.label);
|
| + _writer.print(";");
|
| + return null;
|
| + }
|
| + Object visitDefaultFormalParameter(DefaultFormalParameter node) {
|
| + visit(node.parameter);
|
| + if (node.separator != null) {
|
| + _writer.print(" ");
|
| + _writer.print(node.separator.lexeme);
|
| + visit7(" ", node.defaultValue);
|
| + }
|
| + return null;
|
| + }
|
| + Object visitDoStatement(DoStatement node) {
|
| + _writer.print("do ");
|
| + visit(node.body);
|
| + _writer.print(" while (");
|
| + visit(node.condition);
|
| + _writer.print(");");
|
| + return null;
|
| + }
|
| + Object visitDoubleLiteral(DoubleLiteral node) {
|
| + _writer.print(node.literal.lexeme);
|
| + return null;
|
| + }
|
| + Object visitEmptyFunctionBody(EmptyFunctionBody node) {
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitEmptyStatement(EmptyStatement node) {
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitExportDirective(ExportDirective node) {
|
| + _writer.print("export ");
|
| + visit(node.libraryUri);
|
| + visitList7(" ", node.combinators, " ");
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitExpressionFunctionBody(ExpressionFunctionBody node) {
|
| + _writer.print("=> ");
|
| + visit(node.expression);
|
| + if (node.semicolon != null) {
|
| + _writer.print(';');
|
| + }
|
| + return null;
|
| + }
|
| + Object visitExpressionStatement(ExpressionStatement node) {
|
| + visit(node.expression);
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitExtendsClause(ExtendsClause node) {
|
| + _writer.print("extends ");
|
| + visit(node.superclass);
|
| + return null;
|
| + }
|
| + Object visitFieldDeclaration(FieldDeclaration node) {
|
| + visit(node.documentationComment);
|
| + visit8(node.keyword, " ");
|
| + visit(node.fields);
|
| + _writer.print(";");
|
| + return null;
|
| + }
|
| + Object visitFieldFormalParameter(FieldFormalParameter node) {
|
| + visit8(node.keyword, " ");
|
| + visit6(node.type, " ");
|
| + _writer.print("this.");
|
| + visit(node.identifier);
|
| + return null;
|
| + }
|
| + Object visitForEachStatement(ForEachStatement node) {
|
| + _writer.print("for (");
|
| + visit(node.loopParameter);
|
| + _writer.print(" in ");
|
| + visit(node.iterator);
|
| + _writer.print(") ");
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitFormalParameterList(FormalParameterList node) {
|
| + String groupEnd = null;
|
| + _writer.print('(');
|
| + NodeList<FormalParameter> parameters11 = node.parameters;
|
| + int size6 = parameters11.length;
|
| + for (int i = 0; i < size6; i++) {
|
| + FormalParameter parameter = parameters11[i];
|
| + if (i > 0) {
|
| + _writer.print(", ");
|
| + }
|
| + if (groupEnd == null && parameter is DefaultFormalParameter) {
|
| + if (parameter.kind == ParameterKind.NAMED) {
|
| + groupEnd = "}";
|
| + _writer.print('{');
|
| + } else {
|
| + groupEnd = "]";
|
| + _writer.print('[');
|
| + }
|
| + }
|
| + parameter.accept(this);
|
| + }
|
| + if (groupEnd != null) {
|
| + _writer.print(groupEnd);
|
| + }
|
| + _writer.print(')');
|
| + return null;
|
| + }
|
| + Object visitForStatement(ForStatement node) {
|
| + Expression initialization4 = node.initialization;
|
| + _writer.print("for (");
|
| + if (initialization4 != null) {
|
| + visit(initialization4);
|
| + } else {
|
| + visit(node.variables);
|
| + }
|
| + _writer.print(";");
|
| + visit7(" ", node.condition);
|
| + _writer.print(";");
|
| + visitList7(" ", node.updaters, ", ");
|
| + _writer.print(") ");
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitFunctionDeclaration(FunctionDeclaration node) {
|
| + visit6(node.returnType, " ");
|
| + visit8(node.propertyKeyword, " ");
|
| + visit(node.name);
|
| + visit(node.functionExpression);
|
| + return null;
|
| + }
|
| + Object visitFunctionDeclarationStatement(FunctionDeclarationStatement node) {
|
| + visit(node.functionDeclaration);
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitFunctionExpression(FunctionExpression node) {
|
| + visit(node.parameters);
|
| + _writer.print(' ');
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitFunctionExpressionInvocation(FunctionExpressionInvocation node) {
|
| + visit(node.function);
|
| + visit(node.argumentList);
|
| + return null;
|
| + }
|
| + Object visitFunctionTypeAlias(FunctionTypeAlias node) {
|
| + _writer.print("typedef ");
|
| + visit6(node.returnType, " ");
|
| + visit(node.name);
|
| + visit(node.typeParameters);
|
| + visit(node.parameters);
|
| + _writer.print(";");
|
| + return null;
|
| + }
|
| + Object visitFunctionTypedFormalParameter(FunctionTypedFormalParameter node) {
|
| + visit6(node.returnType, " ");
|
| + visit(node.identifier);
|
| + visit(node.parameters);
|
| + return null;
|
| + }
|
| + Object visitHideCombinator(HideCombinator node) {
|
| + _writer.print("hide ");
|
| + visitList5(node.hiddenNames, ", ");
|
| + return null;
|
| + }
|
| + Object visitIfStatement(IfStatement node) {
|
| + _writer.print("if (");
|
| + visit(node.condition);
|
| + _writer.print(") ");
|
| + visit(node.thenStatement);
|
| + visit7(" else ", node.elseStatement);
|
| + return null;
|
| + }
|
| + Object visitImplementsClause(ImplementsClause node) {
|
| + _writer.print("implements ");
|
| + visitList5(node.interfaces, ", ");
|
| + return null;
|
| + }
|
| + Object visitImportDirective(ImportDirective node) {
|
| + _writer.print("import ");
|
| + visit(node.libraryUri);
|
| + visit7(" as ", node.prefix);
|
| + visitList7(" ", node.combinators, " ");
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitIndexExpression(IndexExpression node) {
|
| + if (node.isCascaded()) {
|
| + _writer.print("..");
|
| + } else {
|
| + visit(node.array);
|
| + }
|
| + _writer.print('[');
|
| + visit(node.index);
|
| + _writer.print(']');
|
| + return null;
|
| + }
|
| + Object visitInstanceCreationExpression(InstanceCreationExpression node) {
|
| + visit8(node.keyword, " ");
|
| + visit(node.constructorName);
|
| + visit(node.argumentList);
|
| + return null;
|
| + }
|
| + Object visitIntegerLiteral(IntegerLiteral node) {
|
| + _writer.print(node.literal.lexeme);
|
| + return null;
|
| + }
|
| + Object visitInterpolationExpression(InterpolationExpression node) {
|
| + if (node.rightBracket != null) {
|
| + _writer.print("\${");
|
| + visit(node.expression);
|
| + _writer.print("}");
|
| + } else {
|
| + _writer.print("\$");
|
| + visit(node.expression);
|
| + }
|
| + return null;
|
| + }
|
| + Object visitInterpolationString(InterpolationString node) {
|
| + _writer.print(node.contents.lexeme);
|
| + return null;
|
| + }
|
| + Object visitIsExpression(IsExpression node) {
|
| + visit(node.expression);
|
| + if (node.notOperator == null) {
|
| + _writer.print(" is ");
|
| + } else {
|
| + _writer.print(" is! ");
|
| + }
|
| + visit(node.type);
|
| + return null;
|
| + }
|
| + Object visitLabel(Label node) {
|
| + visit(node.label);
|
| + _writer.print(":");
|
| + return null;
|
| + }
|
| + Object visitLabeledStatement(LabeledStatement node) {
|
| + visitList6(node.labels, " ", " ");
|
| + visit(node.statement);
|
| + return null;
|
| + }
|
| + Object visitLibraryDirective(LibraryDirective node) {
|
| + _writer.print("library ");
|
| + visit(node.name);
|
| + _writer.print(';');
|
| + nl();
|
| + return null;
|
| + }
|
| + Object visitLibraryIdentifier(LibraryIdentifier node) {
|
| + _writer.print(node.name);
|
| + return null;
|
| + }
|
| + Object visitListLiteral(ListLiteral node) {
|
| + if (node.modifier != null) {
|
| + _writer.print(node.modifier.lexeme);
|
| + _writer.print(' ');
|
| + }
|
| + visit6(node.typeArguments, " ");
|
| + _writer.print("[");
|
| + visitList5(node.elements, ", ");
|
| + _writer.print("]");
|
| + return null;
|
| + }
|
| + Object visitMapLiteral(MapLiteral node) {
|
| + if (node.modifier != null) {
|
| + _writer.print(node.modifier.lexeme);
|
| + _writer.print(' ');
|
| + }
|
| + visit6(node.typeArguments, " ");
|
| + _writer.print("{");
|
| + visitList5(node.entries, ", ");
|
| + _writer.print("}");
|
| + return null;
|
| + }
|
| + Object visitMapLiteralEntry(MapLiteralEntry node) {
|
| + visit(node.key);
|
| + _writer.print(" : ");
|
| + visit(node.value);
|
| + return null;
|
| + }
|
| + Object visitMethodDeclaration(MethodDeclaration node) {
|
| + visit(node.documentationComment);
|
| + visit8(node.externalKeyword, " ");
|
| + visit8(node.modifierKeyword, " ");
|
| + visit6(node.returnType, " ");
|
| + visit8(node.propertyKeyword, " ");
|
| + visit8(node.operatorKeyword, " ");
|
| + visit(node.name);
|
| + if (!node.isGetter()) {
|
| + visit(node.parameters);
|
| + }
|
| + if (node.body is! EmptyFunctionBody) {
|
| + _writer.print(' ');
|
| + }
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitMethodInvocation(MethodInvocation node) {
|
| + if (node.isCascaded()) {
|
| + _writer.print("..");
|
| + } else {
|
| + visit6(node.target, ".");
|
| + }
|
| + visit(node.methodName);
|
| + visit(node.argumentList);
|
| + return null;
|
| + }
|
| + Object visitNamedExpression(NamedExpression node) {
|
| + visit(node.name);
|
| + visit7(" ", node.expression);
|
| + return null;
|
| + }
|
| + Object visitNullLiteral(NullLiteral node) {
|
| + _writer.print("null");
|
| + return null;
|
| + }
|
| + Object visitParenthesizedExpression(ParenthesizedExpression node) {
|
| + _writer.print('(');
|
| + visit(node.expression);
|
| + _writer.print(')');
|
| + return null;
|
| + }
|
| + Object visitPartDirective(PartDirective node) {
|
| + _writer.print("part ");
|
| + visit(node.partUri);
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitPartOfDirective(PartOfDirective node) {
|
| + _writer.print("part of ");
|
| + visit(node.libraryName);
|
| + _writer.print(';');
|
| + return null;
|
| + }
|
| + Object visitPostfixExpression(PostfixExpression node) {
|
| + visit(node.operand);
|
| + _writer.print(node.operator.lexeme);
|
| + return null;
|
| + }
|
| + Object visitPrefixedIdentifier(PrefixedIdentifier node) {
|
| + visit(node.prefix);
|
| + _writer.print('.');
|
| + visit(node.identifier);
|
| + return null;
|
| + }
|
| + Object visitPrefixExpression(PrefixExpression node) {
|
| + _writer.print(node.operator.lexeme);
|
| + visit(node.operand);
|
| + return null;
|
| + }
|
| + Object visitPropertyAccess(PropertyAccess node) {
|
| + if (node.isCascaded()) {
|
| + _writer.print("..");
|
| + } else {
|
| + visit6(node.target, ".");
|
| + }
|
| + visit(node.propertyName);
|
| + return null;
|
| + }
|
| + Object visitRedirectingConstructorInvocation(RedirectingConstructorInvocation node) {
|
| + _writer.print("this");
|
| + visit7(".", node.constructorName);
|
| + visit(node.argumentList);
|
| + return null;
|
| + }
|
| + Object visitReturnStatement(ReturnStatement node) {
|
| + Expression expression15 = node.expression;
|
| + if (expression15 == null) {
|
| + _writer.print("return;");
|
| + } else {
|
| + _writer.print("return ");
|
| + expression15.accept(this);
|
| + _writer.print(";");
|
| + }
|
| + return null;
|
| + }
|
| + Object visitScriptTag(ScriptTag node) {
|
| + _writer.print(node.scriptTag.lexeme);
|
| + return null;
|
| + }
|
| + Object visitShowCombinator(ShowCombinator node) {
|
| + _writer.print("show ");
|
| + visitList5(node.shownNames, ", ");
|
| + return null;
|
| + }
|
| + Object visitSimpleFormalParameter(SimpleFormalParameter node) {
|
| + visit8(node.keyword, " ");
|
| + visit6(node.type, " ");
|
| + visit(node.identifier);
|
| + return null;
|
| + }
|
| + Object visitSimpleIdentifier(SimpleIdentifier node) {
|
| + _writer.print(node.token.lexeme);
|
| + return null;
|
| + }
|
| + Object visitSimpleStringLiteral(SimpleStringLiteral node) {
|
| + _writer.print(node.literal.lexeme);
|
| + return null;
|
| + }
|
| + Object visitStringInterpolation(StringInterpolation node) {
|
| + visitList(node.elements);
|
| + return null;
|
| + }
|
| + Object visitSuperConstructorInvocation(SuperConstructorInvocation node) {
|
| + _writer.print("super");
|
| + visit7(".", node.constructorName);
|
| + visit(node.argumentList);
|
| + return null;
|
| + }
|
| + Object visitSuperExpression(SuperExpression node) {
|
| + _writer.print("super");
|
| + return null;
|
| + }
|
| + Object visitSwitchCase(SwitchCase node) {
|
| + visitList6(node.labels, " ", " ");
|
| + _writer.print("case ");
|
| + visit(node.expression);
|
| + _writer.print(": ");
|
| + {
|
| + indentInc();
|
| + visitList5(node.statements, "\n");
|
| + indentDec();
|
| + }
|
| + return null;
|
| + }
|
| + Object visitSwitchDefault(SwitchDefault node) {
|
| + visitList6(node.labels, " ", " ");
|
| + _writer.print("default: ");
|
| + {
|
| + indentInc();
|
| + visitList5(node.statements, "\n");
|
| + indentDec();
|
| + }
|
| + return null;
|
| + }
|
| + Object visitSwitchStatement(SwitchStatement node) {
|
| + _writer.print("switch (");
|
| + visit(node.expression);
|
| + _writer.print(") {");
|
| + {
|
| + indentInc();
|
| + visitList5(node.members, "\n");
|
| + indentDec();
|
| + }
|
| + nl2();
|
| + _writer.print('}');
|
| + return null;
|
| + }
|
| + Object visitThisExpression(ThisExpression node) {
|
| + _writer.print("this");
|
| + return null;
|
| + }
|
| + Object visitThrowExpression(ThrowExpression node) {
|
| + _writer.print("throw ");
|
| + visit(node.expression);
|
| + return null;
|
| + }
|
| + Object visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) {
|
| + visit6(node.variables, ";");
|
| + return null;
|
| + }
|
| + Object visitTryStatement(TryStatement node) {
|
| + _writer.print("try ");
|
| + visit(node.body);
|
| + visitList7(" ", node.catchClauses, " ");
|
| + visit7(" finally ", node.finallyClause);
|
| + return null;
|
| + }
|
| + Object visitTypeArgumentList(TypeArgumentList node) {
|
| + _writer.print('<');
|
| + visitList5(node.arguments, ", ");
|
| + _writer.print('>');
|
| + return null;
|
| + }
|
| + Object visitTypeName(TypeName node) {
|
| + visit(node.name);
|
| + visit(node.typeArguments);
|
| + return null;
|
| + }
|
| + Object visitTypeParameter(TypeParameter node) {
|
| + visit(node.name);
|
| + visit7(" extends ", node.bound);
|
| + return null;
|
| + }
|
| + Object visitTypeParameterList(TypeParameterList node) {
|
| + _writer.print('<');
|
| + visitList5(node.typeParameters, ", ");
|
| + _writer.print('>');
|
| + return null;
|
| + }
|
| + Object visitVariableDeclaration(VariableDeclaration node) {
|
| + visit(node.name);
|
| + visit7(" = ", node.initializer);
|
| + return null;
|
| + }
|
| + Object visitVariableDeclarationList(VariableDeclarationList node) {
|
| + visit8(node.keyword, " ");
|
| + visit6(node.type, " ");
|
| + visitList5(node.variables, ", ");
|
| + return null;
|
| + }
|
| + Object visitVariableDeclarationStatement(VariableDeclarationStatement node) {
|
| + visit(node.variables);
|
| + _writer.print(";");
|
| + return null;
|
| + }
|
| + Object visitWhileStatement(WhileStatement node) {
|
| + _writer.print("while (");
|
| + visit(node.condition);
|
| + _writer.print(") ");
|
| + visit(node.body);
|
| + return null;
|
| + }
|
| + Object visitWithClause(WithClause node) {
|
| + _writer.print("with ");
|
| + visitList5(node.mixinTypes, ", ");
|
| + return null;
|
| + }
|
| + void indent() {
|
| + _writer.print(_indentString);
|
| + }
|
| + void indentDec() {
|
| + _indentLevel -= 2;
|
| + _indentString = StringUtils.repeat(" ", _indentLevel);
|
| + }
|
| + void indentInc() {
|
| + _indentLevel += 2;
|
| + _indentString = StringUtils.repeat(" ", _indentLevel);
|
| + }
|
| + void nl() {
|
| + _writer.print("\n");
|
| + }
|
| + void nl2() {
|
| + nl();
|
| + indent();
|
| + }
|
| + /**
|
| + * Safely visit the given node.
|
| + * @param node the node to be visited
|
| + */
|
| + void visit(ASTNode node) {
|
| + if (node != null) {
|
| + node.accept(this);
|
| + }
|
| + }
|
| + /**
|
| + * Safely visit the given node, printing the suffix after the node if it is non-<code>null</code>.
|
| + * @param suffix the suffix to be printed if there is a node to visit
|
| + * @param node the node to be visited
|
| + */
|
| + void visit6(ASTNode node, String suffix) {
|
| + if (node != null) {
|
| + node.accept(this);
|
| + _writer.print(suffix);
|
| + }
|
| + }
|
| + /**
|
| + * Safely visit the given node, printing the prefix before the node if it is non-<code>null</code>
|
| + * .
|
| + * @param prefix the prefix to be printed if there is a node to visit
|
| + * @param node the node to be visited
|
| + */
|
| + void visit7(String prefix, ASTNode node) {
|
| + if (node != null) {
|
| + _writer.print(prefix);
|
| + node.accept(this);
|
| + }
|
| + }
|
| + /**
|
| + * Safely visit the given node, printing the suffix after the node if it is non-<code>null</code>.
|
| + * @param suffix the suffix to be printed if there is a node to visit
|
| + * @param node the node to be visited
|
| + */
|
| + void visit8(Token token, String suffix) {
|
| + if (token != null) {
|
| + _writer.print(token.lexeme);
|
| + _writer.print(suffix);
|
| + }
|
| + }
|
| + /**
|
| + * Print a list of nodes without any separation.
|
| + * @param nodes the nodes to be printed
|
| + * @param separator the separator to be printed between adjacent nodes
|
| + */
|
| + void visitList(NodeList<ASTNode> nodes) {
|
| + visitList5(nodes, "");
|
| + }
|
| + /**
|
| + * Print a list of nodes, separated by the given separator.
|
| + * @param nodes the nodes to be printed
|
| + * @param separator the separator to be printed between adjacent nodes
|
| + */
|
| + void visitList5(NodeList<ASTNode> nodes, String separator) {
|
| + if (nodes != null) {
|
| + int size7 = nodes.length;
|
| + for (int i = 0; i < size7; i++) {
|
| + if ("\n" == separator) {
|
| + _writer.print("\n");
|
| + indent();
|
| + } else if (i > 0) {
|
| + _writer.print(separator);
|
| + }
|
| + nodes[i].accept(this);
|
| + }
|
| + }
|
| + }
|
| + /**
|
| + * Print a list of nodes, separated by the given separator.
|
| + * @param nodes the nodes to be printed
|
| + * @param separator the separator to be printed between adjacent nodes
|
| + * @param suffix the suffix to be printed if the list is not empty
|
| + */
|
| + void visitList6(NodeList<ASTNode> nodes, String separator, String suffix) {
|
| + if (nodes != null) {
|
| + int size8 = nodes.length;
|
| + if (size8 > 0) {
|
| + for (int i = 0; i < size8; i++) {
|
| + if (i > 0) {
|
| + _writer.print(separator);
|
| + }
|
| + nodes[i].accept(this);
|
| + }
|
| + _writer.print(suffix);
|
| + }
|
| + }
|
| + }
|
| + /**
|
| + * Print a list of nodes, separated by the given separator.
|
| + * @param prefix the prefix to be printed if the list is not empty
|
| + * @param nodes the nodes to be printed
|
| + * @param separator the separator to be printed between adjacent nodes
|
| + */
|
| + void visitList7(String prefix, NodeList<ASTNode> nodes, String separator) {
|
| + if (nodes != null) {
|
| + int size9 = nodes.length;
|
| + if (size9 > 0) {
|
| + _writer.print(prefix);
|
| + for (int i = 0; i < size9; i++) {
|
| + if (i > 0) {
|
| + _writer.print(separator);
|
| + }
|
| + nodes[i].accept(this);
|
| + }
|
| + }
|
| + }
|
| + }
|
| +}
|
|
|
Chromium Code Reviews
Issue 12197019:
Drop of generated scanner and example scanner driver. (Closed)
Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/