Move ParseHoistableDeclaration to ParserBase.

src/parsing/parser-base.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PARSING_PARSER_BASE_H
 #define V8_PARSING_PARSER_BASE_H
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
@@ skipping 1175 matching lines @@
   void ParseFormalParameter(FormalParametersT* parameters, bool* ok);
   void ParseFormalParameterList(FormalParametersT* parameters, bool* ok);
   void CheckArityRestrictions(int param_count, FunctionKind function_type,
                               bool has_rest, int formals_start_pos,
                               int formals_end_pos, bool* ok);
 
   BlockT ParseVariableDeclarations(VariableDeclarationContext var_context,
                                    DeclarationParsingResult* parsing_result,
                                    ZoneList<const AstRawString*>* names,
                                    bool* ok);
+  StatementT ParseHoistableDeclaration(ZoneList<const AstRawString*>* names,
+                                       bool default_export, bool* ok);
+  StatementT ParseHoistableDeclaration(int pos, ParseFunctionFlags flags,
+                                       ZoneList<const AstRawString*>* names,
+                                       bool default_export, bool* ok);
 
   // Under some circumstances, we allow preparsing to abort if the preparsed
   // function is "long and trivial", and fully parse instead. Our current
   // definition of "long and trivial" is:
   // - over kLazyParseTrialLimit statements
   // - all starting with an identifier (i.e., no if, for, while, etc.)
   static const int kLazyParseTrialLimit = 200;
 
   // TODO(nikolaos, marja): The first argument should not really be passed
   // by value. The method is expected to add the parsed statements to the
@@ skipping 2376 matching lines @@
   } while (Check(Token::COMMA));
 
   parsing_result->bindings_loc =
       Scanner::Location(bindings_start, scanner()->location().end_pos);
 
   DCHECK(*ok);
   return init_block;
 }
 
 template <typename Impl>
+typename ParserBase<Impl>::StatementT
+ParserBase<Impl>::ParseHoistableDeclaration(
+    ZoneList<const AstRawString*>* names, bool default_export, bool* ok) {
+  Expect(Token::FUNCTION, CHECK_OK_CUSTOM(GetEmptyStatement));
+  int pos = position();
+  ParseFunctionFlags flags = ParseFunctionFlags::kIsNormal;
+  if (Check(Token::MUL)) {
+    flags |= ParseFunctionFlags::kIsGenerator;
+  }
+  return ParseHoistableDeclaration(pos, flags, names, default_export, ok);
+}
+
+template <typename Impl>
+typename ParserBase<Impl>::StatementT
+ParserBase<Impl>::ParseHoistableDeclaration(
+    int pos, ParseFunctionFlags flags, ZoneList<const AstRawString*>* names,
+    bool default_export, bool* ok) {
+  // FunctionDeclaration ::
+  //   'function' Identifier '(' FormalParameters ')' '{' FunctionBody '}'
+  //   'function' '(' FormalParameters ')' '{' FunctionBody '}'
+  // GeneratorDeclaration ::
+  //   'function' '*' Identifier '(' FormalParameters ')' '{' FunctionBody '}'
+  //   'function' '*' '(' FormalParameters ')' '{' FunctionBody '}'
+  //
+  // The anonymous forms are allowed iff [default_export] is true.
+  //
+  // 'function' and '*' (if present) have been consumed by the caller.
+
+  const bool is_generator = flags & ParseFunctionFlags::kIsGenerator;
+  const bool is_async = flags & ParseFunctionFlags::kIsAsync;
+  DCHECK(!is_generator || !is_async);
+
+  IdentifierT name;
+  FunctionNameValidity name_validity;
+  IdentifierT variable_name;
+  if (default_export && peek() == Token::LPAREN) {
+    impl()->GetDefaultStrings(&name, &variable_name);
+    name_validity = kSkipFunctionNameCheck;
+  } else {
+    bool is_strict_reserved;
+    name = ParseIdentifierOrStrictReservedWord(
+        &is_strict_reserved, CHECK_OK_CUSTOM(GetEmptyStatement));
+    name_validity = is_strict_reserved ? kFunctionNameIsStrictReserved
+                                       : kFunctionNameValidityUnknown;
+    variable_name = name;
+  }
+
+  FuncNameInferrer::State fni_state(fni_);
+  impl()->PushEnclosingName(name);
+  FunctionLiteralT function = impl()->ParseFunctionLiteral(
+      name, scanner()->location(), name_validity,
+      is_generator ? FunctionKind::kGeneratorFunction
+                   : is_async ? FunctionKind::kAsyncFunction
+                              : FunctionKind::kNormalFunction,
+      pos, FunctionLiteral::kDeclaration, language_mode(),
+      CHECK_OK_CUSTOM(GetEmptyStatement));
+
+  return impl()->DeclareFunction(variable_name, function, pos, is_generator,
+                                 is_async, names, ok);
+}
+
+template <typename Impl>
 void ParserBase<Impl>::CheckArityRestrictions(int param_count,
                                               FunctionKind function_kind,
                                               bool has_rest,
                                               int formals_start_pos,
                                               int formals_end_pos, bool* ok) {
   if (IsGetterFunction(function_kind)) {
     if (param_count != 0) {
       impl()->ReportMessageAt(
           Scanner::Location(formals_start_pos, formals_end_pos),
           MessageTemplate::kBadGetterArity);
@@ skipping 657 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H