| // Copyright 2010 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef V8_FAST_CODEGEN_H_ |
| #define V8_FAST_CODEGEN_H_ |
| |
| #include "v8.h" |
| |
| #include "ast.h" |
| #include "compiler.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class FastCodeGenSyntaxChecker: public AstVisitor { |
| public: |
| explicit FastCodeGenSyntaxChecker() |
| : info_(NULL), has_supported_syntax_(true) { |
| } |
| |
| void Check(FunctionLiteral* fun, CompilationInfo* info); |
| |
| CompilationInfo* info() { return info_; } |
| bool has_supported_syntax() { return has_supported_syntax_; } |
| |
| private: |
| void VisitDeclarations(ZoneList<Declaration*>* decls); |
| void VisitStatements(ZoneList<Statement*>* stmts); |
| |
| // AST node visit functions. |
| #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
| AST_NODE_LIST(DECLARE_VISIT) |
| #undef DECLARE_VISIT |
| |
| CompilationInfo* info_; |
| bool has_supported_syntax_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FastCodeGenSyntaxChecker); |
| }; |
| |
| |
| class FastCodeGenerator: public AstVisitor { |
| public: |
| FastCodeGenerator(MacroAssembler* masm, Handle<Script> script, bool is_eval) |
| : masm_(masm), |
| script_(script), |
| is_eval_(is_eval), |
| function_(NULL), |
| info_(NULL) { |
| } |
| |
| static Handle<Code> MakeCode(FunctionLiteral* fun, |
| Handle<Script> script, |
| bool is_eval, |
| CompilationInfo* info); |
| |
| void Generate(FunctionLiteral* fun, CompilationInfo* info); |
| |
| private: |
| MacroAssembler* masm() { return masm_; } |
| FunctionLiteral* function() { return function_; } |
| Label* bailout() { return &bailout_; } |
| |
| bool has_receiver() { return !info_->receiver().is_null(); } |
| Handle<Object> receiver() { return info_->receiver(); } |
| bool has_this_properties() { return info_->has_this_properties(); } |
| |
| // AST node visit functions. |
| #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
| AST_NODE_LIST(DECLARE_VISIT) |
| #undef DECLARE_VISIT |
| |
| // Emit code to load the receiver from the stack into a given register. |
| void EmitLoadReceiver(Register reg); |
| |
| // Emit code to check that the receiver has the same map as the |
| // compile-time receiver. Receiver is expected in {ia32-edx, x64-rdx, |
| // arm-r1}. Emit a branch to the (single) bailout label if check fails. |
| void EmitReceiverMapCheck(); |
| |
| // Emit code to load a global variable value into {is32-eax, x64-rax, |
| // arm-r0}. Register {ia32-edx, x64-rdx, arm-r1} is preserved if it is |
| // holding the receiver and {is32-ecx, x64-rcx, arm-r2} is always |
| // clobbered. |
| void EmitGlobalVariableLoad(Handle<String> name); |
| |
| // Emit a store to an own property of this. The stored value is expected |
| // in {ia32-eax, x64-rax, arm-r0} and the receiver in {is32-edx, x64-rdx, |
| // arm-r1}. Both are preserve. |
| void EmitThisPropertyStore(Handle<String> name); |
| |
| MacroAssembler* masm_; |
| Handle<Script> script_; |
| bool is_eval_; |
| |
| FunctionLiteral* function_; |
| CompilationInfo* info_; |
| |
| Label bailout_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FastCodeGenerator); |
| }; |
| |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_FAST_CODEGEN_H_ |