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Unified Diff: sdk/lib/_internal/compiler/implementation/scanner/partial_parser.dart

Issue 694353007: Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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Index: sdk/lib/_internal/compiler/implementation/scanner/partial_parser.dart
diff --git a/sdk/lib/_internal/compiler/implementation/scanner/partial_parser.dart b/sdk/lib/_internal/compiler/implementation/scanner/partial_parser.dart
deleted file mode 100644
index c6ccbf47c195864ec9bac83bfb4869b78336b903..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/compiler/implementation/scanner/partial_parser.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of scanner;
-
-class PartialParser extends Parser {
- PartialParser(Listener listener) : super(listener);
-
- Token parseClassBody(Token token) => skipClassBody(token);
-
- Token fullParseClassBody(Token token) => super.parseClassBody(token);
-
- Token parseExpression(Token token) => skipExpression(token);
-
- Token parseArgumentsOpt(Token token) {
- // This method is overridden for two reasons:
- // 1. Avoid generating events for arguments.
- // 2. Avoid calling skip expression for each argument (which doesn't work).
- if (optional('(', token)) {
- BeginGroupToken begin = token;
- return begin.endGroup.next;
- } else {
- return token;
- }
- }
-
- Token skipExpression(Token token) {
- while (true) {
- final kind = token.kind;
- final value = token.stringValue;
- if ((identical(kind, EOF_TOKEN)) ||
- (identical(value, ';')) ||
- (identical(value, ',')) ||
- (identical(value, '}')) ||
- (identical(value, ')')) ||
- (identical(value, ']'))) {
- break;
- }
- if (identical(value, '=') ||
- identical(value, '?') ||
- identical(value, ':')) {
- var nextValue = token.next.stringValue;
- if (identical(nextValue, 'const')) {
- token = token.next;
- nextValue = token.next.stringValue;
- }
- if (identical(nextValue, '{')) {
- // Handle cases like this:
- // class Foo {
- // var map;
- // Foo() : map = {};
- // Foo.x() : map = true ? {} : {};
- // }
- BeginGroupToken begin = token.next;
- token = (begin.endGroup != null) ? begin.endGroup : token;
- token = token.next;
- continue;
- }
- if (identical(nextValue, '<')) {
- // Handle cases like this:
- // class Foo {
- // var map;
- // Foo() : map = <String, Foo>{};
- // Foo.x() : map = true ? <String, Foo>{} : <String, Foo>{};
- // }
- BeginGroupToken begin = token.next;
- token = (begin.endGroup != null) ? begin.endGroup : token;
- token = token.next;
- if (identical(token.stringValue, '{')) {
- begin = token;
- token = (begin.endGroup != null) ? begin.endGroup : token;
- token = token.next;
- }
- continue;
- }
- }
- if (!mayParseFunctionExpressions && identical(value, '{')) {
- break;
- }
- if (token is BeginGroupToken) {
- BeginGroupToken begin = token;
- token = (begin.endGroup != null) ? begin.endGroup : token;
- } else if (token is ErrorToken) {
- listener.reportErrorToken(token);
- }
- token = token.next;
- }
- return token;
- }
-
- Token skipClassBody(Token token) {
- if (!optional('{', token)) {
- return listener.expectedClassBodyToSkip(token);
- }
- BeginGroupToken beginGroupToken = token;
- Token endGroup = beginGroupToken.endGroup;
- if (endGroup == null) {
- return listener.unmatched(beginGroupToken);
- } else if (!identical(endGroup.kind, $CLOSE_CURLY_BRACKET)) {
- return listener.unmatched(beginGroupToken);
- }
- return endGroup;
- }
-
- Token skipAsyncModifier(Token token) {
- String value = token.stringValue;
- if (identical(value, 'async')) {
- token = token.next;
- value = token.stringValue;
-
- if (identical(value, '*')) {
- token = token.next;
- }
- } else if (identical(value, 'sync')) {
- token = token.next;
- value = token.stringValue;
-
- if (identical(value, '*')) {
- token = token.next;
- }
- }
- return token;
- }
-
- Token parseFunctionBody(Token token, bool isExpression, bool allowAbstract) {
- assert(!isExpression);
- token = skipAsyncModifier(token);
- String value = token.stringValue;
- if (identical(value, ';')) {
- if (!allowAbstract) {
- listener.reportError(token, MessageKind.BODY_EXPECTED);
- }
- listener.handleNoFunctionBody(token);
- } else {
- if (identical(value, '=>')) {
- token = parseExpression(token.next);
- expectSemicolon(token);
- } else if (value == '=') {
- token = parseRedirectingFactoryBody(token);
- expectSemicolon(token);
- } else {
- token = skipBlock(token);
- }
- listener.skippedFunctionBody(token);
- }
- return token;
- }
-
- Token parseFormalParameters(Token token) => skipFormals(token);
-
- Token skipFormals(Token token) {
- listener.beginOptionalFormalParameters(token);
- if (!optional('(', token)) {
- if (optional(';', token)) {
- listener.recoverableError(token, "expected '('");
- return token;
- }
- return listener.unexpected(token);
- }
- BeginGroupToken beginGroupToken = token;
- Token endToken = beginGroupToken.endGroup;
- listener.endFormalParameters(0, token, endToken);
- return endToken.next;
- }
-}

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