Enable await in more statements.

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 "lib/invocation_mirror.h"
 #include "platform/utils.h"
 #include "vm/ast_transformer.h"
 #include "vm/bootstrap.h"
@@ skipping 6679 matching lines @@
   ASSERT(CurrentToken() == Token::kIF);
   const intptr_t if_pos = TokenPos();
   SourceLabel* label = NULL;
   if (label_name != NULL) {
     label = SourceLabel::New(if_pos, label_name, SourceLabel::kStatement);
     OpenBlock();
     current_block_->scope->AddLabel(label);
   }
   ConsumeToken();
   ExpectToken(Token::kLPAREN);
-  AstNode* cond_expr = ParseExpr(kAllowConst, kConsumeCascades);
+  AstNode* cond_expr = ParseAwaitableExpr(kAllowConst, kConsumeCascades);
   ExpectToken(Token::kRPAREN);
   const bool parsing_loop_body = false;
   SequenceNode* true_branch = ParseNestedStatement(parsing_loop_body, NULL);
   SequenceNode* false_branch = NULL;
   if (CurrentToken() == Token::kELSE) {
     ConsumeToken();
     false_branch = ParseNestedStatement(parsing_loop_body, NULL);
   }
   AstNode* if_node = new(I) IfNode(
       if_pos, cond_expr, true_branch, false_branch);
@@ skipping 152 matching lines @@
 
 AstNode* Parser::ParseSwitchStatement(String* label_name) {
   TRACE_PARSER("ParseSwitchStatement");
   ASSERT(CurrentToken() == Token::kSWITCH);
   const intptr_t switch_pos = TokenPos();
   SourceLabel* label =
       SourceLabel::New(switch_pos, label_name, SourceLabel::kSwitch);
   ConsumeToken();
   ExpectToken(Token::kLPAREN);
   const intptr_t expr_pos = TokenPos();
-  AstNode* switch_expr = ParseExpr(kAllowConst, kConsumeCascades);
+  AstNode* switch_expr = ParseAwaitableExpr(kAllowConst, kConsumeCascades);
   ExpectToken(Token::kRPAREN);
   ExpectToken(Token::kLBRACE);
   OpenBlock();
   current_block_->scope->AddLabel(label);
 
   // Store switch expression in temporary local variable. The type of the
   // variable is set to dynamic. It will later be patched to match the
   // type of the case clause expressions. Therefore, we have to allocate
   // a new type representing dynamic and can't reuse the canonical
   // type object for dynamic.
@@ skipping 958 matching lines @@
     statement = ParseTryStatement(label_name);
   } else if (token == Token::kRETURN) {
     const intptr_t return_pos = TokenPos();
     ConsumeToken();
     if (CurrentToken() != Token::kSEMICOLON) {
       if (current_function().IsConstructor() &&
           (current_block_->scope->function_level() == 0)) {
         ReportError(return_pos,
                     "return of a value not allowed in constructors");
       }
-      AstNode* expr = ParseExpr(kAllowConst, kConsumeCascades);
+      AstNode* expr = ParseAwaitableExpr(kAllowConst, kConsumeCascades);
       statement = new(I) ReturnNode(statement_pos, expr);
     } else {
       statement = new(I) ReturnNode(statement_pos);
     }
     AddNodeForFinallyInlining(statement);
     ExpectSemicolon();
   } else if (token == Token::kIF) {
     statement = ParseIfStatement(label_name);
   } else if (token == Token::kASSERT) {
     statement = ParseAssertStatement();
@@ skipping 3657 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart