Index: pkg/analyzer/lib/src/dart/ast/token.dart |
diff --git a/pkg/analyzer/lib/src/dart/ast/token.dart b/pkg/analyzer/lib/src/dart/ast/token.dart |
index baae1b8a33e2a8d770388963368b376df371b497..ee5df9f01e4e131a9e72562d12477739600762c0 100644 |
--- a/pkg/analyzer/lib/src/dart/ast/token.dart |
+++ b/pkg/analyzer/lib/src/dart/ast/token.dart |
@@ -4,400 +4,21 @@ |
library analyzer.src.dart.ast.token; |
-import 'package:analyzer/dart/ast/token.dart'; |
-import 'package:analyzer/src/generated/java_engine.dart'; |
- |
-/** |
- * The opening half of a grouping pair of tokens. This is used for curly |
- * brackets ('{'), parentheses ('('), and square brackets ('['). |
- */ |
-class BeginToken extends SimpleToken { |
- /** |
- * The token that corresponds to this token. |
- */ |
- Token endToken; |
- |
- /** |
- * Initialize a newly created token to have the given [type] at the given |
- * [offset]. |
- */ |
- BeginToken(TokenType type, int offset) : super(type, offset) { |
- assert(type == TokenType.OPEN_CURLY_BRACKET || |
- type == TokenType.OPEN_PAREN || |
- type == TokenType.OPEN_SQUARE_BRACKET || |
- type == TokenType.STRING_INTERPOLATION_EXPRESSION); |
- } |
- |
- @override |
- Token copy() => new BeginToken(type, offset); |
-} |
- |
-/** |
- * A begin token that is preceded by comments. |
- */ |
-class BeginTokenWithComment extends BeginToken implements TokenWithComment { |
- /** |
- * The first comment in the list of comments that precede this token. |
- */ |
- @override |
- CommentToken _precedingComment; |
- |
- /** |
- * Initialize a newly created token to have the given [type] at the given |
- * [offset] and to be preceded by the comments reachable from the given |
- * [_precedingComment]. |
- */ |
- BeginTokenWithComment(TokenType type, int offset, this._precedingComment) |
- : super(type, offset) { |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- CommentToken get precedingComments => _precedingComment; |
- |
- @override |
- void set precedingComments(CommentToken comment) { |
- _precedingComment = comment; |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- void applyDelta(int delta) { |
- super.applyDelta(delta); |
- Token token = precedingComments; |
- while (token != null) { |
- token.applyDelta(delta); |
- token = token.next; |
- } |
- } |
- |
- @override |
- Token copy() => |
- new BeginTokenWithComment(type, offset, copyComments(precedingComments)); |
-} |
- |
-/** |
- * A token representing a comment. |
- */ |
-class CommentToken extends StringToken { |
- /** |
- * The token that contains this comment. |
- */ |
- TokenWithComment parent; |
- |
- /** |
- * Initialize a newly created token to represent a token of the given [type] |
- * with the given [value] at the given [offset]. |
- */ |
- CommentToken(TokenType type, String value, int offset) |
- : super(type, value, offset); |
- |
- @override |
- CommentToken copy() => new CommentToken(type, _value, offset); |
- |
- /** |
- * Remove this comment token from the list. |
- * |
- * This is used when we decide to interpret the comment as syntax. |
- */ |
- void remove() { |
- if (previous != null) { |
- previous.setNextWithoutSettingPrevious(next); |
- next?.previous = previous; |
- } else { |
- assert(parent.precedingComments == this); |
- parent.precedingComments = next; |
- } |
- } |
-} |
- |
-/** |
- * A documentation comment token. |
- */ |
-class DocumentationCommentToken extends CommentToken { |
- /** |
- * The references embedded within the documentation comment. |
- * This list will be empty unless this is a documentation comment that has |
- * references embedded within it. |
- */ |
- final List<Token> references = <Token>[]; |
- |
- /** |
- * Initialize a newly created token to represent a token of the given [type] |
- * with the given [value] at the given [offset]. |
- */ |
- DocumentationCommentToken(TokenType type, String value, int offset) |
- : super(type, value, offset); |
- |
- @override |
- CommentToken copy() { |
- DocumentationCommentToken copy = |
- new DocumentationCommentToken(type, _value, offset); |
- references.forEach((ref) => copy.references.add(ref.copy())); |
- return copy; |
- } |
-} |
- |
-/** |
- * A token representing a keyword in the language. |
- */ |
-class KeywordToken extends SimpleToken { |
- @override |
- final Keyword keyword; |
- |
- /** |
- * Initialize a newly created token to represent the given [keyword] at the |
- * given [offset]. |
- */ |
- KeywordToken(this.keyword, int offset) : super(TokenType.KEYWORD, offset); |
- |
- @override |
- String get lexeme => keyword.syntax; |
- |
- @override |
- Token copy() => new KeywordToken(keyword, offset); |
- |
- @override |
- Keyword value() => keyword; |
-} |
- |
-/** |
- * A keyword token that is preceded by comments. |
- */ |
-class KeywordTokenWithComment extends KeywordToken implements TokenWithComment { |
- /** |
- * The first comment in the list of comments that precede this token. |
- */ |
- @override |
- CommentToken _precedingComment; |
- |
- /** |
- * Initialize a newly created token to to represent the given [keyword] at the |
- * given [offset] and to be preceded by the comments reachable from the given |
- * [_precedingComment]. |
- */ |
- KeywordTokenWithComment(Keyword keyword, int offset, this._precedingComment) |
- : super(keyword, offset) { |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- CommentToken get precedingComments => _precedingComment; |
- |
- void set precedingComments(CommentToken comment) { |
- _precedingComment = comment; |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- void applyDelta(int delta) { |
- super.applyDelta(delta); |
- Token token = precedingComments; |
- while (token != null) { |
- token.applyDelta(delta); |
- token = token.next; |
- } |
- } |
- |
- @override |
- Token copy() => new KeywordTokenWithComment( |
- keyword, offset, copyComments(precedingComments)); |
-} |
- |
-/** |
- * A token that was scanned from the input. Each token knows which tokens |
- * precede and follow it, acting as a link in a doubly linked list of tokens. |
- */ |
-class SimpleToken implements Token { |
- /** |
- * The type of the token. |
- */ |
- @override |
- final TokenType type; |
- |
- /** |
- * The offset from the beginning of the file to the first character in the |
- * token. |
- */ |
- @override |
- int offset = 0; |
- |
- /** |
- * The previous token in the token stream. |
- */ |
- @override |
- Token previous; |
- |
- /** |
- * The next token in the token stream. |
- */ |
- Token _next; |
- |
- /** |
- * Initialize a newly created token to have the given [type] and [offset]. |
- */ |
- SimpleToken(this.type, this.offset); |
- |
- @override |
- int get end => offset + length; |
- |
- @override |
- bool get isOperator => type.isOperator; |
- |
- @override |
- bool get isSynthetic => length == 0; |
- |
- @override |
- bool get isUserDefinableOperator => type.isUserDefinableOperator; |
- |
- @override |
- Keyword get keyword => null; |
- |
- @override |
- int get length => lexeme.length; |
- |
- @override |
- String get lexeme => type.lexeme; |
- |
- @override |
- Token get next => _next; |
- |
- @override |
- CommentToken get precedingComments => null; |
- |
- @override |
- void applyDelta(int delta) { |
- offset += delta; |
- } |
- |
- @override |
- Token copy() => new Token(type, offset); |
- |
- @override |
- Token copyComments(Token token) { |
- if (token == null) { |
- return null; |
- } |
- Token head = token.copy(); |
- Token tail = head; |
- token = token.next; |
- while (token != null) { |
- tail = tail.setNext(token.copy()); |
- token = token.next; |
- } |
- return head; |
- } |
- |
- @override |
- bool matchesAny(List<TokenType> types) { |
- for (TokenType type in types) { |
- if (this.type == type) { |
- return true; |
- } |
- } |
- return false; |
- } |
- |
- @override |
- Token setNext(Token token) { |
- _next = token; |
- token.previous = this; |
- return token; |
- } |
- |
- @override |
- Token setNextWithoutSettingPrevious(Token token) { |
- _next = token; |
- return token; |
- } |
- |
- @override |
- String toString() => lexeme; |
- |
- @override |
- Object value() => type.lexeme; |
- |
- /** |
- * Sets the `parent` property to `this` for the given [comment] and all the |
- * next tokens. |
- */ |
- void _setCommentParent(CommentToken comment) { |
- while (comment != null) { |
- comment.parent = this; |
- comment = comment.next; |
- } |
- } |
-} |
- |
-/** |
- * A token whose value is independent of it's type. |
- */ |
-class StringToken extends SimpleToken { |
- /** |
- * The lexeme represented by this token. |
- */ |
- String _value; |
- |
- /** |
- * Initialize a newly created token to represent a token of the given [type] |
- * with the given [value] at the given [offset]. |
- */ |
- StringToken(TokenType type, String value, int offset) : super(type, offset) { |
- this._value = StringUtilities.intern(value); |
- } |
- |
- @override |
- String get lexeme => _value; |
- |
- @override |
- Token copy() => new StringToken(type, _value, offset); |
- |
- @override |
- String value() => _value; |
-} |
- |
-/** |
- * A string token that is preceded by comments. |
- */ |
-class StringTokenWithComment extends StringToken implements TokenWithComment { |
- /** |
- * The first comment in the list of comments that precede this token. |
- */ |
- CommentToken _precedingComment; |
- |
- /** |
- * Initialize a newly created token to have the given [type] at the given |
- * [offset] and to be preceded by the comments reachable from the given |
- * [comment]. |
- */ |
- StringTokenWithComment( |
- TokenType type, String value, int offset, this._precedingComment) |
- : super(type, value, offset) { |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- CommentToken get precedingComments => _precedingComment; |
- |
- void set precedingComments(CommentToken comment) { |
- _precedingComment = comment; |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- void applyDelta(int delta) { |
- super.applyDelta(delta); |
- Token token = precedingComments; |
- while (token != null) { |
- token.applyDelta(delta); |
- token = token.next; |
- } |
- } |
- |
- @override |
- Token copy() => new StringTokenWithComment( |
- type, lexeme, offset, copyComments(precedingComments)); |
-} |
+import 'package:front_end/src/scanner/token.dart'; |
+ |
+export 'package:front_end/src/scanner/token.dart' |
+ show |
+ BeginToken, |
+ BeginTokenWithComment, |
+ CommentToken, |
+ DocumentationCommentToken, |
+ KeywordToken, |
+ KeywordTokenWithComment, |
+ SimpleToken, |
+ StringToken, |
+ StringTokenWithComment, |
+ TokenClass, |
+ TokenWithComment; |
/** |
* A token whose value is independent of it's type. |
@@ -413,162 +34,3 @@ class SyntheticStringToken extends StringToken { |
@override |
bool get isSynthetic => true; |
} |
- |
-/** |
- * The classes (or groups) of tokens with a similar use. |
- */ |
-class TokenClass { |
- /** |
- * A value used to indicate that the token type is not part of any specific |
- * class of token. |
- */ |
- static const TokenClass NO_CLASS = const TokenClass('NO_CLASS'); |
- |
- /** |
- * A value used to indicate that the token type is an additive operator. |
- */ |
- static const TokenClass ADDITIVE_OPERATOR = |
- const TokenClass('ADDITIVE_OPERATOR', 13); |
- |
- /** |
- * A value used to indicate that the token type is an assignment operator. |
- */ |
- static const TokenClass ASSIGNMENT_OPERATOR = |
- const TokenClass('ASSIGNMENT_OPERATOR', 1); |
- |
- /** |
- * A value used to indicate that the token type is a bitwise-and operator. |
- */ |
- static const TokenClass BITWISE_AND_OPERATOR = |
- const TokenClass('BITWISE_AND_OPERATOR', 11); |
- |
- /** |
- * A value used to indicate that the token type is a bitwise-or operator. |
- */ |
- static const TokenClass BITWISE_OR_OPERATOR = |
- const TokenClass('BITWISE_OR_OPERATOR', 9); |
- |
- /** |
- * A value used to indicate that the token type is a bitwise-xor operator. |
- */ |
- static const TokenClass BITWISE_XOR_OPERATOR = |
- const TokenClass('BITWISE_XOR_OPERATOR', 10); |
- |
- /** |
- * A value used to indicate that the token type is a cascade operator. |
- */ |
- static const TokenClass CASCADE_OPERATOR = |
- const TokenClass('CASCADE_OPERATOR', 2); |
- |
- /** |
- * A value used to indicate that the token type is a conditional operator. |
- */ |
- static const TokenClass CONDITIONAL_OPERATOR = |
- const TokenClass('CONDITIONAL_OPERATOR', 3); |
- |
- /** |
- * A value used to indicate that the token type is an equality operator. |
- */ |
- static const TokenClass EQUALITY_OPERATOR = |
- const TokenClass('EQUALITY_OPERATOR', 7); |
- |
- /** |
- * A value used to indicate that the token type is an if-null operator. |
- */ |
- static const TokenClass IF_NULL_OPERATOR = |
- const TokenClass('IF_NULL_OPERATOR', 4); |
- |
- /** |
- * A value used to indicate that the token type is a logical-and operator. |
- */ |
- static const TokenClass LOGICAL_AND_OPERATOR = |
- const TokenClass('LOGICAL_AND_OPERATOR', 6); |
- |
- /** |
- * A value used to indicate that the token type is a logical-or operator. |
- */ |
- static const TokenClass LOGICAL_OR_OPERATOR = |
- const TokenClass('LOGICAL_OR_OPERATOR', 5); |
- |
- /** |
- * A value used to indicate that the token type is a multiplicative operator. |
- */ |
- static const TokenClass MULTIPLICATIVE_OPERATOR = |
- const TokenClass('MULTIPLICATIVE_OPERATOR', 14); |
- |
- /** |
- * A value used to indicate that the token type is a relational operator. |
- */ |
- static const TokenClass RELATIONAL_OPERATOR = |
- const TokenClass('RELATIONAL_OPERATOR', 8); |
- |
- /** |
- * A value used to indicate that the token type is a shift operator. |
- */ |
- static const TokenClass SHIFT_OPERATOR = |
- const TokenClass('SHIFT_OPERATOR', 12); |
- |
- /** |
- * A value used to indicate that the token type is a unary operator. |
- */ |
- static const TokenClass UNARY_POSTFIX_OPERATOR = |
- const TokenClass('UNARY_POSTFIX_OPERATOR', 16); |
- |
- /** |
- * A value used to indicate that the token type is a unary operator. |
- */ |
- static const TokenClass UNARY_PREFIX_OPERATOR = |
- const TokenClass('UNARY_PREFIX_OPERATOR', 15); |
- |
- /** |
- * The name of the token class. |
- */ |
- final String name; |
- |
- /** |
- * The precedence of tokens of this class, or `0` if the such tokens do not |
- * represent an operator. |
- */ |
- final int precedence; |
- |
- /** |
- * Initialize a newly created class of tokens to have the given [name] and |
- * [precedence]. |
- */ |
- const TokenClass(this.name, [this.precedence = 0]); |
- |
- @override |
- String toString() => name; |
-} |
- |
-/** |
- * A normal token that is preceded by comments. |
- */ |
-class TokenWithComment extends SimpleToken { |
- /** |
- * The first comment in the list of comments that precede this token. |
- */ |
- CommentToken _precedingComment; |
- |
- /** |
- * Initialize a newly created token to have the given [type] at the given |
- * [offset] and to be preceded by the comments reachable from the given |
- * [comment]. |
- */ |
- TokenWithComment(TokenType type, int offset, this._precedingComment) |
- : super(type, offset) { |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- CommentToken get precedingComments => _precedingComment; |
- |
- void set precedingComments(CommentToken comment) { |
- _precedingComment = comment; |
- _setCommentParent(_precedingComment); |
- } |
- |
- @override |
- Token copy() => |
- new TokenWithComment(type, offset, copyComments(precedingComments)); |
-} |