Implement parsing of metadata on local variables.

pkg/analyzer/lib/src/fasta/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 513 matching lines @@
     push(variable);
     scope[variable.name.name] = variable.name.staticElement =
         new AnalyzerLocalVariableElemment(variable);
   }
 
   void endVariablesDeclaration(int count, Token endToken) {
     debugEvent("VariablesDeclaration");
     List<VariableDeclaration> variables = popList(count);
     TypeAnnotation type = pop();
     pop(); // TODO(paulberry): Modifiers.
+    pop(); // Metadata.
+    pop(); // Comment.
     push(ast.variableDeclarationStatement(
         ast.variableDeclarationList(null, null, null, type, variables),
         toAnalyzerToken(endToken)));
   }
 
   void handleAssignmentExpression(Token token) {
     debugEvent("AssignmentExpression");
     Expression rhs = pop();
     Expression lhs = pop();
     push(ast.assignmentExpression(lhs, toAnalyzerToken(token), rhs));
@@ skipping 1299 matching lines @@
 
     // This is temporary placeholder code to get tests to pass.
     // TODO(paulberry): after analyzer and fasta token representations are
     // unified, refactor the code in analyzer's parser that handles
     // documentation comments so that it is reusable, and reuse it here.
     // See Parser.parseCommentAndMetadata
     var tokens = <analyzer.Token>[toAnalyzerCommentToken(comments)];
     var references = <CommentReference>[];
     return ast.documentationComment(tokens, references);
   }
+
+  @override
+  void debugEvent(String name) {
+    // printEvent(name);
+  }

[scheglov, 2017/04/04 15:57:30]

Do we need this?
Did you forget to remove this after debuging?

[ahe, 2017/04/05 14:18:03]

It's not needed, but keeping the method here makes debugging easier.

 }
 
 /// Data structure placed on the stack to represent a class body.
 ///
 /// This is needed because analyzer has no separate AST representation of a
 /// class body; it simply stores all of the relevant data in the
 /// [ClassDeclaration] object.
 class _ClassBody {
   final Token beginToken;
 
@@ skipping 84 matching lines @@
       } else if (identical('static', s)) {
         staticKeyword = token;
       } else if (identical('var', s)) {
         finalConstOrVarKeyword = token;
       } else {
         internalError('Unhandled modifier: $s');
       }
     }
   }
 }