| // 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_PRETTYPRINTER_H_ |
| #define V8_PRETTYPRINTER_H_ |
| |
| #include "src/allocation.h" |
| #include "src/ast.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| #ifdef DEBUG |
| |
| class PrettyPrinter: public AstVisitor { |
| public: |
| explicit PrettyPrinter(Zone* zone); |
| virtual ~PrettyPrinter(); |
| |
| // The following routines print a node into a string. |
| // The result string is alive as long as the PrettyPrinter is alive. |
| const char* Print(AstNode* node); |
| const char* PrintExpression(FunctionLiteral* program); |
| const char* PrintProgram(FunctionLiteral* program); |
| |
| void Print(const char* format, ...); |
| |
| // Print a node to stdout. |
| static void PrintOut(Zone* zone, AstNode* node); |
| |
| // Individual nodes |
| #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
| AST_NODE_LIST(DECLARE_VISIT) |
| #undef DECLARE_VISIT |
| |
| private: |
| char* output_; // output string buffer |
| int size_; // output_ size |
| int pos_; // current printing position |
| |
| protected: |
| void Init(); |
| const char* Output() const { return output_; } |
| |
| virtual void PrintStatements(ZoneList<Statement*>* statements); |
| void PrintLabels(ZoneStringList* labels); |
| virtual void PrintArguments(ZoneList<Expression*>* arguments); |
| void PrintLiteral(Handle<Object> value, bool quote); |
| void PrintParameters(Scope* scope); |
| void PrintDeclarations(ZoneList<Declaration*>* declarations); |
| void PrintFunctionLiteral(FunctionLiteral* function); |
| void PrintCaseClause(CaseClause* clause); |
| |
| DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
| }; |
| |
| |
| // Prints the AST structure |
| class AstPrinter: public PrettyPrinter { |
| public: |
| explicit AstPrinter(Zone* zone); |
| virtual ~AstPrinter(); |
| |
| const char* PrintProgram(FunctionLiteral* program); |
| |
| // Individual nodes |
| #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
| AST_NODE_LIST(DECLARE_VISIT) |
| #undef DECLARE_VISIT |
| |
| private: |
| friend class IndentedScope; |
| void PrintIndented(const char* txt); |
| void PrintIndentedVisit(const char* s, AstNode* node); |
| |
| void PrintStatements(ZoneList<Statement*>* statements); |
| void PrintDeclarations(ZoneList<Declaration*>* declarations); |
| void PrintParameters(Scope* scope); |
| void PrintArguments(ZoneList<Expression*>* arguments); |
| void PrintCaseClause(CaseClause* clause); |
| void PrintLiteralIndented(const char* info, Handle<Object> value, bool quote); |
| void PrintLiteralWithModeIndented(const char* info, |
| Variable* var, |
| Handle<Object> value); |
| void PrintLabelsIndented(ZoneStringList* labels); |
| |
| void inc_indent() { indent_++; } |
| void dec_indent() { indent_--; } |
| |
| int indent_; |
| }; |
| |
| #endif // DEBUG |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_PRETTYPRINTER_H_ |