Bug 1424420 - Adjust AutoAwaitIsKeyword template parameters slightly so a full parser type need not be written out. r=arai

--HG--
extra : rebase_source : 71991d60647fbc7cfa092d81d9a8e073bed25f36

js/src/frontend/Parser.cpp

@@ -2239,8 +2239,7 @@ Parser<FullParseHandler, CharT>::moduleBody(ModuleSharedContext* modulesc)
     if (!mn)
         return null();
 
-    AutoAwaitIsKeyword<GeneralParser<FullParseHandler, CharT>> awaitIsKeyword(this,
-                                                                              AwaitIsModuleKeyword);
+    AutoAwaitIsKeyword<FullParseHandler, CharT> awaitIsKeyword(this, AwaitIsModuleKeyword);
     ParseNode* pn = statementList(YieldIsName);
     if (!pn)
         return null();
@@ -2583,7 +2582,7 @@ Parser<FullParseHandler, CharT>::standaloneFunction(HandleFunction fun,
 
     YieldHandling yieldHandling = GetYieldHandling(generatorKind);
     AwaitHandling awaitHandling = GetAwaitHandling(asyncKind);
-    AutoAwaitIsKeyword<GeneralParser<FullParseHandler, CharT>> awaitIsKeyword(this, awaitHandling);
+    AutoAwaitIsKeyword<FullParseHandler, CharT> awaitIsKeyword(this, awaitHandling);
     if (!functionFormalParametersAndBody(InAllowed, yieldHandling, fn, Statement,
                                          parameterListEnd, /* isStandaloneFunction = */ true))
     {
@@ -3711,7 +3710,7 @@ GeneralParser<ParseHandler, CharT>::functionFormalParametersAndBody(InHandling i
         AwaitHandling awaitHandling = funbox->isAsync() || (kind == Arrow && awaitIsKeyword())
                                       ? AwaitIsKeyword
                                       : AwaitIsName;
-        AutoAwaitIsKeyword<GeneralParser<ParseHandler, CharT>> awaitIsKeyword(this, awaitHandling);
+        AutoAwaitIsKeyword<ParseHandler, CharT> awaitIsKeyword(this, awaitHandling);
         if (!functionArguments(yieldHandling, kind, pn))
             return false;
     }
@@ -3786,8 +3785,7 @@ GeneralParser<ParseHandler, CharT>::functionFormalParametersAndBody(InHandling i
     bool inheritedStrict = pc->sc()->strict();
     Node body;
     {
-        AutoAwaitIsKeyword<GeneralParser<ParseHandler, CharT>> awaitIsKeyword(this,
-                                                                              bodyAwaitHandling);
+        AutoAwaitIsKeyword<ParseHandler, CharT> awaitIsKeyword(this, bodyAwaitHandling);
         body = functionBody(inHandling, bodyYieldHandling, kind, bodyType);
         if (!body)
             return false;
@@ -3951,8 +3949,7 @@ GeneralParser<ParseHandler, CharT>::functionExpr(uint32_t toStringStart,
 {
     MOZ_ASSERT(anyChars.isCurrentTokenType(TOK_FUNCTION));
 
-    AutoAwaitIsKeyword<GeneralParser<ParseHandler, CharT>> awaitIsKeyword(this,
-                                                                          GetAwaitHandling(asyncKind));
+    AutoAwaitIsKeyword<ParseHandler, CharT> awaitIsKeyword(this, GetAwaitHandling(asyncKind));
     GeneratorKind generatorKind = GeneratorKind::NotGenerator;
     TokenKind tt;
     if (!tokenStream.getToken(&tt))

js/src/frontend/Parser.h

@@ -119,7 +119,7 @@ enum FunctionCallBehavior {
     ForbidAssignmentToFunctionCalls
 };
 
-template <class Parser>
+template <class ParseHandler, typename CharT>
 class AutoAwaitIsKeyword;
 
 class ParserBase : public StrictModeGetter
@@ -168,7 +168,7 @@ class ParserBase : public StrictModeGetter
       return awaitHandling_ != AwaitIsName;
     }
 
-    template<class> friend class AutoAwaitIsKeyword;
+    template<class, typename> friend class AutoAwaitIsKeyword;
 
     ParserBase(JSContext* cx, LifoAlloc& alloc, const ReadOnlyCompileOptions& options,
                const char16_t* chars, size_t length, bool foldConstants,
@@ -1120,7 +1120,7 @@ class Parser<FullParseHandler, CharT> final
 
     // Functions present in both Parser<ParseHandler, CharT> specializations.
 
-    friend class AutoAwaitIsKeyword<GeneralParser<SyntaxParseHandler, CharT>>;
+    friend class AutoAwaitIsKeyword<SyntaxParseHandler, CharT>;
     inline void setAwaitHandling(AwaitHandling awaitHandling);
 
     Node newRegExp();
@@ -1264,15 +1264,17 @@ ParserAnyCharsAccess<Parser>::anyChars(const typename Parser::TokenStream::Chars
     return reinterpret_cast<const Parser*>(parserAddr)->anyChars;
 }
 
-template <class Parser>
+template <class ParseHandler, typename CharT>
 class MOZ_STACK_CLASS AutoAwaitIsKeyword
 {
+    using GeneralParser = frontend::GeneralParser<ParseHandler, CharT>;
+
   private:
-    Parser* parser_;
+    GeneralParser* parser_;
     AwaitHandling oldAwaitHandling_;
 
   public:
-    AutoAwaitIsKeyword(Parser* parser, AwaitHandling awaitHandling) {
+    AutoAwaitIsKeyword(GeneralParser* parser, AwaitHandling awaitHandling) {
         parser_ = parser;
         oldAwaitHandling_ = static_cast<AwaitHandling>(parser_->awaitHandling_);