Cleanup: use const reference for ParsedFunction where possible.

runtime/vm/ast_transformer.cc

 // Copyright (c) 2014, 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.
 
 #include "vm/ast_transformer.h"
 
 #include "vm/object_store.h"
 #include "vm/parser.h"
 #include "vm/thread.h"
 
@@ skipping 27 matching lines @@
 
 #define DEFINE_UNREACHABLE(BaseName)                                           \
 void AwaitTransformer::Visit##BaseName##Node(BaseName##Node* node) {           \
   UNREACHABLE();                                                               \
 }
 
 FOR_EACH_UNREACHABLE_NODE(DEFINE_UNREACHABLE)
 #undef DEFINE_UNREACHABLE
 
 AwaitTransformer::AwaitTransformer(SequenceNode* preamble,
-                                   ParsedFunction* const parsed_function,
+                                   const ParsedFunction& parsed_function,
                                    LocalScope* function_top)
     : preamble_(preamble),
       temp_cnt_(0),
       parsed_function_(parsed_function),
       function_top_(function_top),
       thread_(Thread::Current()) {
   ASSERT(function_top_ != NULL);
 }
 
 
@@ skipping 146 matching lines @@
       Scanner::kNoSourcePos,
       async_catch_helper,
       catch_helper_args));
   ReturnNode* continuation_return = new(Z) ReturnNode(Scanner::kNoSourcePos);
   continuation_return->set_return_type(ReturnNode::kContinuationTarget);
   preamble_->Add(continuation_return);
 
   // If this expression is part of a try block, also append the code for
   // restoring the saved try context that lives on the stack.
   const String& async_saved_try_ctx_name =
-      String::Handle(Z, parsed_function_->async_saved_try_ctx_name());
+      String::Handle(Z, parsed_function_.async_saved_try_ctx_name());
   if (!async_saved_try_ctx_name.IsNull()) {
     LocalVariable* async_saved_try_ctx =
         GetVariableInScope(preamble_->scope(), async_saved_try_ctx_name);
     preamble_->Add(new (Z) StoreLocalNode(
         Scanner::kNoSourcePos,
-        parsed_function_->saved_try_ctx(),
+        parsed_function_.saved_try_ctx(),
         new (Z) LoadLocalNode(Scanner::kNoSourcePos, async_saved_try_ctx)));
   }
 
   LoadLocalNode* load_error_param = new (Z) LoadLocalNode(
       Scanner::kNoSourcePos, error_param);
   SequenceNode* error_ne_null_branch = new (Z) SequenceNode(
       Scanner::kNoSourcePos, ChainNewScope(preamble_->scope()));
   error_ne_null_branch->Add(new (Z) ThrowNode(
       Scanner::kNoSourcePos,
       load_error_param,
@@ skipping 363 matching lines @@
 void AwaitTransformer::VisitThrowNode(ThrowNode* node) {
   // TODO(mlippautz): Check if relevant.
   AstNode* new_exception = Transform(node->exception());
   AstNode* new_stacktrace = Transform(node->stacktrace());
   result_ = new(Z) ThrowNode(node->token_pos(),
                              new_exception,
                              new_stacktrace);
 }
 
 }  // namespace dart