Use iterator, moveNext(), current.

runtime/vm/parser.cc

 // 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.
 
 #include "vm/parser.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 5810 matching lines @@
   // where T is the type of the for loop variable. However, the type error
   // would refer to the compiler generated iterator and could confuse the user.
   // It is better to leave the iterator untyped and postpone the type error
   // until the loop variable is assigned to.
   const AbstractType& iterator_type = Type::ZoneHandle(Type::DynamicType());
   LocalVariable* iterator_var =
       new LocalVariable(collection_pos, iterator_name, iterator_type);
   current_block_->scope->AddVariable(iterator_var);
 
   // Generate initialization of iterator variable.
-  const String& iterator_method_name =
+  const String& iterator_getter_name =
       String::ZoneHandle(Symbols::GetIterator());
   ArgumentListNode* no_args = new ArgumentListNode(collection_pos);
-  AstNode* get_iterator = new InstanceCallNode(
-      collection_pos, collection_expr, iterator_method_name, no_args);
+  AstNode* get_iterator = new InstanceGetterNode(
+      collection_pos, collection_expr, iterator_getter_name);
   AstNode* iterator_init =
       new StoreLocalNode(collection_pos, iterator_var, get_iterator);
   current_block_->statements->Add(iterator_init);
 
   // Generate while loop condition.
-  AstNode* iterator_has_next = new InstanceGetterNode(
+  AstNode* iterator_moveNext = new InstanceCallNode(
       collection_pos,
       new LoadLocalNode(collection_pos, iterator_var),
-      String::ZoneHandle(Symbols::HasNext()));
+      String::ZoneHandle(Symbols::MoveNext()),
+      no_args);
 
   // Parse the for loop body. Ideally, we would use ParseNestedStatement()
   // here, but that does not work well because we have to insert an implicit
   // variable assignment and potentially a variable declaration in the
   // loop body.
   OpenLoopBlock();
   current_block_->scope->AddLabel(label);
 
-  AstNode* iterator_next = new InstanceCallNode(
+  AstNode* iterator_current = new InstanceGetterNode(
       collection_pos,
       new LoadLocalNode(collection_pos, iterator_var),
-      String::ZoneHandle(Symbols::Next()),
-      no_args);
+      String::ZoneHandle(Symbols::Current()));
 
   // Generate assignment of next iterator value to loop variable.
   AstNode* loop_var_assignment = NULL;
   if (loop_var != NULL) {
     // The for loop declares a new variable. Add it to the loop body scope.
     current_block_->scope->AddVariable(loop_var);
     loop_var_assignment =
-        new StoreLocalNode(loop_var_pos, loop_var, iterator_next);
+        new StoreLocalNode(loop_var_pos, loop_var, iterator_current);
   } else {
     AstNode* loop_var_primary =
         ResolveIdent(loop_var_pos, *loop_var_name, false);
     ASSERT(!loop_var_primary->IsPrimaryNode());
     loop_var_assignment =
-        CreateAssignmentNode(loop_var_primary, iterator_next);
+        CreateAssignmentNode(loop_var_primary, iterator_current);
     if (loop_var_assignment == NULL) {
       ErrorMsg(loop_var_pos, "variable or field '%s' is not assignable",
                loop_var_name->ToCString());
     }
   }
   current_block_->statements->Add(loop_var_assignment);
 
   // Now parse the for-in loop statement or block.
   if (CurrentToken() == Token::kLBRACE) {
     ConsumeToken();
     ParseStatementSequence();
     ExpectToken(Token::kRBRACE);
   } else {
     AstNode* statement = ParseStatement();
     if (statement != NULL) {
       current_block_->statements->Add(statement);
     }
   }
 
   SequenceNode* for_loop_statement = CloseBlock();
 
   AstNode* while_statement =
-      new WhileNode(forin_pos, label, iterator_has_next, for_loop_statement);
+      new WhileNode(forin_pos, label, iterator_moveNext, for_loop_statement);
   current_block_->statements->Add(while_statement);
 
   return CloseBlock();  // Implicit block around while loop.
 }
 
 
 AstNode* Parser::ParseForStatement(String* label_name) {
   TRACE_PARSER("ParseForStatement");
   const intptr_t for_pos = TokenPos();
   ConsumeToken();
@@ skipping 4111 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart