[parser] Refactor of Parse*Statement*, part 7

src/parsing/preparser.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_PREPARSER_H
 #define V8_PARSING_PREPARSER_H
 
 #include "src/ast/scopes.h"
 #include "src/parsing/parser-base.h"
 
@@ skipping 807 matching lines @@
   // which is set to false if parsing failed; it is unchanged otherwise.
   // By making the 'exception handling' explicit, we are forced to check
   // for failure at the call sites.
   Statement ParseFunctionDeclaration(bool* ok);
   Statement ParseAsyncFunctionDeclaration(ZoneList<const AstRawString*>* names,
                                           bool default_export, bool* ok);
   Expression ParseAsyncFunctionExpression(bool* ok);
   Statement ParseClassDeclaration(ZoneList<const AstRawString*>* names,
                                   bool default_export, bool* ok);
   Statement ParseForStatement(ZoneList<const AstRawString*>* labels, bool* ok);
-  Statement ParseTryStatement(bool* ok);
   Expression ParseConditionalExpression(bool accept_IN, bool* ok);
   Expression ParseObjectLiteral(bool* ok);
 
   V8_INLINE PreParserStatementList ParseEagerFunctionBody(
       PreParserIdentifier function_name, int pos,
       const PreParserFormalParameters& parameters, FunctionKind kind,
       FunctionLiteral::FunctionType function_type, bool* ok);
 
   V8_INLINE LazyParsingResult
   SkipLazyFunctionBody(int* materialized_literal_count,
@@ skipping 100 matching lines @@
 
   V8_INLINE PreParserExpression RewriteReturn(PreParserExpression return_value,
                                               int pos) {
     return return_value;
   }
   V8_INLINE PreParserStatement RewriteSwitchStatement(
       PreParserExpression tag, PreParserStatement switch_statement,
       PreParserStatementList cases, Scope* scope) {
     return PreParserStatement::Default();
   }
+  V8_INLINE void RewriteCatchPattern(CatchInfo* catch_info, bool* ok) {}
+  V8_INLINE void ValidateCatchBlock(const CatchInfo& catch_info, bool* ok) {}
+  V8_INLINE PreParserStatement RewriteTryStatement(
+      PreParserStatement try_block, PreParserStatement catch_block,
+      PreParserStatement finally_block, const CatchInfo& catch_info, int pos) {
+    return PreParserStatement::Default();
+  }
 
   V8_INLINE PreParserExpression RewriteDoExpression(PreParserStatement body,
                                                     int pos, bool* ok) {
     return PreParserExpression::Default();
   }
 
   // TODO(nikolaos): The preparser currently does not keep track of labels
   // and targets.
   V8_INLINE PreParserStatement LookupBreakTarget(PreParserIdentifier label,
                                                  bool* ok) {
@@ skipping 214 matching lines @@
 
   V8_INLINE static PreParserStatementList NullStatementList() {
     return PreParserStatementList::Null();
   }
 
   V8_INLINE static bool IsNullStatementList(PreParserStatementList stmts) {
     return stmts.IsNull();
   }
 
   V8_INLINE static PreParserStatement NullStatement() {
-    return PreParserStatement::Default();
+    return PreParserStatement::Null();
   }
 
   V8_INLINE bool IsNullStatement(PreParserStatement stmt) {
     return stmt.IsNullStatement();
   }
 
   V8_INLINE bool IsEmptyStatement(PreParserStatement stmt) {
     return stmt.IsEmptyStatement();
   }
 
   V8_INLINE static PreParserStatement NullBlock() {
-    return PreParserStatement::Default();
+    return PreParserStatement::Null();
   }
 
   V8_INLINE PreParserIdentifier EmptyIdentifierString() const {
     return PreParserIdentifier::Default();
   }
 
   // Odd-ball literal creators.
   V8_INLINE PreParserExpression GetLiteralTheHole(int position) {
     return PreParserExpression::Default();
   }
@@ skipping 200 matching lines @@
     function_state_->NextMaterializedLiteralIndex();
     function_state_->NextMaterializedLiteralIndex();
   }
   return EmptyExpression();
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PREPARSER_H