Parse 'while' and 'do-while' statements with Fasta.

pkg/front_end/lib/src/fasta/analyzer/ast_builder.dart

 // Copyright (c) 2016, 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.
 
 library fasta.analyzer.ast_builder;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast_factory.dart' show AstFactory;
 import 'package:analyzer/dart/ast/standard_ast_factory.dart' as standard;
 import 'package:analyzer/dart/ast/token.dart' as analyzer show Token;
@@ skipping 386 matching lines @@
     debugEvent("VariableInitializer");
     assert(assignmentOperator.stringValue == "=");
     Expression initializer = pop();
     Identifier identifier = pop();
     // TODO(ahe): Don't push initializers, instead install them.
     push(ast.variableDeclaration(
         identifier, toAnalyzerToken(assignmentOperator), initializer));
   }
 
   @override
+  void endWhileStatement(Token whileKeyword, Token endToken) {
+    debugEvent("WhileStatement");
+    Statement body = pop();
+    ParenthesizedExpression condition = pop();
+    pop(); // continue target
+    pop(); // break target
+    push(ast.whileStatement(
+        toAnalyzerToken(whileKeyword),
+        condition.leftParenthesis,
+        condition.expression,
+        condition.rightParenthesis,
+        body));
+  }
+
+  @override
   void handleNoVariableInitializer(Token token) {
     debugEvent("NoVariableInitializer");
   }
 
   void endInitializedIdentifier(Token nameToken) {
     debugEvent("InitializedIdentifier");
     AstNode node = pop();
     VariableDeclaration variable;
     // TODO(paulberry): This seems kludgy.  It would be preferable if we
     // could respond to a "handleNoVariableInitializer" event by converting a
@@ skipping 534 matching lines @@
         uri, configurations, combinators, toAnalyzerToken(semicolon)));
   }
 
   @override
   void endDottedName(int count, Token firstIdentifier) {
     debugEvent("DottedName");
     List<SimpleIdentifier> components = popList(count);
     push(ast.dottedName(components));
   }
 
+  @override
+  void endDoWhileStatement(
+      Token doKeyword, Token whileKeyword, Token semicolon) {
+    debugEvent("DoWhileStatement");
+    ParenthesizedExpression condition = pop();
+    Statement body = pop();
+    pop(); // continue target
+    pop(); // break target
+    push(ast.doStatement(
+        toAnalyzerToken(doKeyword),
+        body,
+        toAnalyzerToken(whileKeyword),
+        condition.leftParenthesis,
+        condition.expression,
+        condition.rightParenthesis,
+        toAnalyzerToken(semicolon)));
+  }
+
   void endConditionalUri(Token ifKeyword, Token equalitySign) {
     debugEvent("ConditionalUri");
     StringLiteral libraryUri = pop();
     // TODO(paulberry,ahe): the parser should report the right paren token to
     // the listener.
     Token rightParen = null;
     StringLiteral value;
     if (equalitySign != null) {
       value = pop();
     }
@@ skipping 633 matching lines @@
       } else if (identical('static', s)) {
         staticKeyword = token;
       } else if (identical('var', s)) {
         finalConstOrVarKeyword = token;
       } else {
         internalError('Unhandled modifier: $s');
       }
     }
   }
 }