| Index: third_party/pkg/angular/lib/core/parser/dynamic_parser_impl.dart
|
| diff --git a/third_party/pkg/angular/lib/core/parser/dynamic_parser_impl.dart b/third_party/pkg/angular/lib/core/parser/dynamic_parser_impl.dart
|
| deleted file mode 100644
|
| index 0b893ddcf27389d2924011dc28232c30ba8f3d1e..0000000000000000000000000000000000000000
|
| --- a/third_party/pkg/angular/lib/core/parser/dynamic_parser_impl.dart
|
| +++ /dev/null
|
| @@ -1,311 +0,0 @@
|
| -library angular.core.parser.dynamic_parser_impl;
|
| -
|
| -import 'package:angular/core/parser/parser.dart' show ParserBackend;
|
| -import 'package:angular/core/parser/lexer.dart';
|
| -import 'package:angular/core/parser/syntax.dart';
|
| -
|
| -class DynamicParserImpl {
|
| - static Token EOF = new Token(-1, null);
|
| - final ParserBackend backend;
|
| - final String input;
|
| - final List<Token> tokens;
|
| - int index = 0;
|
| -
|
| - DynamicParserImpl(Lexer lexer, this.backend, String input)
|
| - : this.input = input, tokens = lexer.call(input);
|
| -
|
| - Token get peek {
|
| - return (index < tokens.length) ? tokens[index] : EOF;
|
| - }
|
| -
|
| - parseChain() {
|
| - bool isChain = false;
|
| - while (optional(';')) {
|
| - isChain = true;
|
| - }
|
| - List expressions = [];
|
| - while (index < tokens.length) {
|
| - if (peek.text == ')' || peek.text == '}' || peek.text == ']') {
|
| - error('Unconsumed token ${peek.text}');
|
| - }
|
| - var expr = parseFilter();
|
| - expressions.add(expr);
|
| - while (optional(';')) {
|
| - isChain = true;
|
| - }
|
| - if (isChain && expr is Filter) {
|
| - error('cannot have a filter in a chain');
|
| - }
|
| - }
|
| - return (expressions.length == 1)
|
| - ? expressions.first
|
| - : backend.newChain(expressions);
|
| - }
|
| -
|
| - parseFilter() {
|
| - var result = parseExpression();
|
| - while (optional('|')) {
|
| - String name = peek.text; // TODO(kasperl): Restrict to identifier?
|
| - advance();
|
| - List arguments = [];
|
| - while (optional(':')) {
|
| - // TODO(kasperl): Is this really supposed to be expressions?
|
| - arguments.add(parseExpression());
|
| - }
|
| - result = backend.newFilter(result, name, arguments);
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - parseExpression() {
|
| - int start = peek.index;
|
| - var result = parseConditional();
|
| - while (peek.text == '=') {
|
| - if (!backend.isAssignable(result)) {
|
| - int end = (index < tokens.length) ? peek.index : input.length;
|
| - String expression = input.substring(start, end);
|
| - error('Expression $expression is not assignable');
|
| - }
|
| - expect('=');
|
| - result = backend.newAssign(result, parseConditional());
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - parseConditional() {
|
| - int start = peek.index;
|
| - var result = parseLogicalOr();
|
| - if (optional('?')) {
|
| - var yes = parseExpression();
|
| - if (!optional(':')) {
|
| - int end = (index < tokens.length) ? peek.index : input.length;
|
| - String expression = input.substring(start, end);
|
| - error('Conditional expression $expression requires all 3 expressions');
|
| - }
|
| - var no = parseExpression();
|
| - result = backend.newConditional(result, yes, no);
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - parseLogicalOr() {
|
| - // '||'
|
| - var result = parseLogicalAnd();
|
| - while (optional('||')) {
|
| - result = backend.newBinaryLogicalOr(result, parseLogicalAnd());
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - parseLogicalAnd() {
|
| - // '&&'
|
| - var result = parseEquality();
|
| - while (optional('&&')) {
|
| - result = backend.newBinaryLogicalAnd(result, parseEquality());
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - parseEquality() {
|
| - // '==','!='
|
| - var result = parseRelational();
|
| - while (true) {
|
| - if (optional('==')) {
|
| - result = backend.newBinaryEqual(result, parseRelational());
|
| - } else if (optional('!=')) {
|
| - result = backend.newBinaryNotEqual(result, parseRelational());
|
| - } else {
|
| - return result;
|
| - }
|
| - }
|
| - }
|
| -
|
| - parseRelational() {
|
| - // '<', '>', '<=', '>='
|
| - var result = parseAdditive();
|
| - while (true) {
|
| - if (optional('<')) {
|
| - result = backend.newBinaryLessThan(result, parseAdditive());
|
| - } else if (optional('>')) {
|
| - result = backend.newBinaryGreaterThan(result, parseAdditive());
|
| - } else if (optional('<=')) {
|
| - result = backend.newBinaryLessThanEqual(result, parseAdditive());
|
| - } else if (optional('>=')) {
|
| - result = backend.newBinaryGreaterThanEqual(result, parseAdditive());
|
| - } else {
|
| - return result;
|
| - }
|
| - }
|
| - }
|
| -
|
| - parseAdditive() {
|
| - // '+', '-'
|
| - var result = parseMultiplicative();
|
| - while (true) {
|
| - if (optional('+')) {
|
| - result = backend.newBinaryPlus(result, parseMultiplicative());
|
| - } else if (optional('-')) {
|
| - result = backend.newBinaryMinus(result, parseMultiplicative());
|
| - } else {
|
| - return result;
|
| - }
|
| - }
|
| - }
|
| -
|
| - parseMultiplicative() {
|
| - // '*', '%', '/', '~/'
|
| - var result = parsePrefix();
|
| - while (true) {
|
| - if (optional('*')) {
|
| - result = backend.newBinaryMultiply(result, parsePrefix());
|
| - } else if (optional('%')) {
|
| - result = backend.newBinaryModulo(result, parsePrefix());
|
| - } else if (optional('/')) {
|
| - result = backend.newBinaryDivide(result, parsePrefix());
|
| - } else if (optional('~/')) {
|
| - result = backend.newBinaryTruncatingDivide(result, parsePrefix());
|
| - } else {
|
| - return result;
|
| - }
|
| - }
|
| - }
|
| -
|
| - parsePrefix() {
|
| - if (optional('+')) {
|
| - // TODO(kasperl): This is different than the original parser.
|
| - return backend.newPrefixPlus(parsePrefix());
|
| - } else if (optional('-')) {
|
| - return backend.newPrefixMinus(parsePrefix());
|
| - } else if (optional('!')) {
|
| - return backend.newPrefixNot(parsePrefix());
|
| - } else {
|
| - return parseAccessOrCallMember();
|
| - }
|
| - }
|
| -
|
| - parseAccessOrCallMember() {
|
| - var result = parsePrimary();
|
| - while (true) {
|
| - if (optional('.')) {
|
| - // TODO(kasperl): Check that this is an identifier. Are keywords okay?
|
| - String name = peek.text;
|
| - advance();
|
| - if (optional('(')) {
|
| - List arguments = parseExpressionList(')');
|
| - expect(')');
|
| - result = backend.newCallMember(result, name, arguments);
|
| - } else {
|
| - result = backend.newAccessMember(result, name);
|
| - }
|
| - } else if (optional('[')) {
|
| - var key = parseExpression();
|
| - expect(']');
|
| - result = backend.newAccessKeyed(result, key);
|
| - } else if (optional('(')) {
|
| - List arguments = parseExpressionList(')');
|
| - expect(')');
|
| - result = backend.newCallFunction(result, arguments);
|
| - } else {
|
| - return result;
|
| - }
|
| - }
|
| - }
|
| -
|
| - parsePrimary() {
|
| - if (optional('(')) {
|
| - var result = parseExpression();
|
| - expect(')');
|
| - return result;
|
| - } else if (optional('null') || optional('undefined')) {
|
| - return backend.newLiteralNull();
|
| - } else if (optional('true')) {
|
| - return backend.newLiteralBoolean(true);
|
| - } else if (optional('false')) {
|
| - return backend.newLiteralBoolean(false);
|
| - } else if (optional('[')) {
|
| - List elements = parseExpressionList(']');
|
| - expect(']');
|
| - return backend.newLiteralArray(elements);
|
| - } else if (peek.text == '{') {
|
| - return parseObject();
|
| - } else if (peek.key != null) {
|
| - return parseAccessOrCallScope();
|
| - } else if (peek.value != null) {
|
| - var value = peek.value;
|
| - advance();
|
| - return (value is num)
|
| - ? backend.newLiteralNumber(value)
|
| - : backend.newLiteralString(value);
|
| - } else if (index >= tokens.length) {
|
| - throw 'Unexpected end of expression: $input';
|
| - } else {
|
| - error('Unexpected token ${peek.text}');
|
| - }
|
| - }
|
| -
|
| - parseAccessOrCallScope() {
|
| - String name = peek.key;
|
| - advance();
|
| - if (!optional('(')) return backend.newAccessScope(name);
|
| - List arguments = parseExpressionList(')');
|
| - expect(')');
|
| - return backend.newCallScope(name, arguments);
|
| - }
|
| -
|
| - parseObject() {
|
| - List<String> keys = [];
|
| - List values = [];
|
| - expect('{');
|
| - if (peek.text != '}') {
|
| - do {
|
| - // TODO(kasperl): Stricter checking. Only allow identifiers
|
| - // and strings as keys. Maybe also keywords?
|
| - var value = peek.value;
|
| - keys.add(value is String ? value : peek.text);
|
| - advance();
|
| - expect(':');
|
| - values.add(parseExpression());
|
| - } while (optional(','));
|
| - }
|
| - expect('}');
|
| - return backend.newLiteralObject(keys, values);
|
| - }
|
| -
|
| - List parseExpressionList(String terminator) {
|
| - List result = [];
|
| - if (peek.text != terminator) {
|
| - do {
|
| - result.add(parseExpression());
|
| - } while (optional(','));
|
| - }
|
| - return result;
|
| - }
|
| -
|
| - bool optional(text) {
|
| - if (peek.text == text) {
|
| - advance();
|
| - return true;
|
| - } else {
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - void expect(text) {
|
| - if (peek.text == text) {
|
| - advance();
|
| - } else {
|
| - error('Missing expected $text');
|
| - }
|
| - }
|
| -
|
| - void advance() {
|
| - index++;
|
| - }
|
| -
|
| - void error(message) {
|
| - String location = (index < tokens.length)
|
| - ? 'at column ${tokens[index].index + 1} in'
|
| - : 'the end of the expression';
|
| - throw 'Parser Error: $message $location [$input]';
|
| - }
|
| -}
|
|
|