Implement parsing support for generic functions

runtime/vm/parser.h

 // Copyright (c) 2012, 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.
 
 #ifndef VM_PARSER_H_
 #define VM_PARSER_H_
 
 #include "include/dart_api.h"
 
 #include "platform/assert.h"
@@ skipping 267 matching lines @@
     kParameterMetadataOffset,
     kParameterEntrySize,
   };
   static RawObject* ParseFunctionParameters(const Function& func);
 
  private:
   friend class EffectGraphVisitor;  // For BuildNoSuchMethodArguments.
 
   struct Block;
   class TryStack;
+  class TokenPosScope;
 
   Parser(const Script& script,
          const Library& library,
          TokenPosition token_pos);
   Parser(const Script& script,
          ParsedFunction* function,
          TokenPosition token_pos);
   ~Parser();
 
   // The function for which we will generate code.
@@ skipping 447 matching lines @@
   SequenceNode* ParseNestedStatement(bool parsing_loop_body,
                                      SourceLabel* label);
   void ParseStatementSequence();
   bool IsIdentifier();
   bool IsSymbol(const String& symbol);
   bool IsSimpleLiteral(const AbstractType& type, Instance* value);
   bool IsFunctionTypeAliasName();
   bool IsMixinAppAlias();
   bool TryParseQualIdent();
   bool TryParseTypeParameters();
+  bool TryParseTypeArguments();
+  bool IsTypeParameters();
+  bool IsArgumentPart();
+  bool IsParameterPart();
   bool TryParseOptionalType();
   bool TryParseReturnType();
   bool IsVariableDeclaration();
+  bool IsFunctionReturnType();
   bool IsFunctionDeclaration();
   bool IsFunctionLiteral();
   bool IsForInStatement();
   bool IsTopLevelAccessor();
 
   AstNode* ParseBinaryExpr(int min_preced);
   LiteralNode* ParseConstExpr();
   static const bool kRequireConst = true;
   static const bool kAllowConst = false;
   static const bool kConsumeCascades = true;
@@ skipping 199 matching lines @@
 
   intptr_t recursion_counter_;
   friend class RecursionChecker;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_