mirror of https://github.com/lukechilds/node.git
Ryan Dahl
15 years ago
49 changed files with 1618 additions and 387 deletions
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// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_FAST_CODEGEN_IA32_H_ |
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#define V8_FAST_CODEGEN_IA32_H_ |
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#include "v8.h" |
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#include "ast.h" |
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#include "compiler.h" |
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#include "list.h" |
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namespace v8 { |
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namespace internal { |
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class FastCodeGenSyntaxChecker: public AstVisitor { |
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public: |
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explicit FastCodeGenSyntaxChecker() |
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: info_(NULL), has_supported_syntax_(true) { |
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} |
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void Check(CompilationInfo* info); |
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CompilationInfo* info() { return info_; } |
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bool has_supported_syntax() { return has_supported_syntax_; } |
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private: |
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void VisitDeclarations(ZoneList<Declaration*>* decls); |
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void VisitStatements(ZoneList<Statement*>* stmts); |
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// AST node visit functions.
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#define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
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AST_NODE_LIST(DECLARE_VISIT) |
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#undef DECLARE_VISIT |
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CompilationInfo* info_; |
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bool has_supported_syntax_; |
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DISALLOW_COPY_AND_ASSIGN(FastCodeGenSyntaxChecker); |
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}; |
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class FastCodeGenerator: public AstVisitor { |
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public: |
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explicit FastCodeGenerator(MacroAssembler* masm) |
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: masm_(masm), info_(NULL), destination_(no_reg), smi_bits_(0) { |
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} |
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static Handle<Code> MakeCode(CompilationInfo* info); |
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void Generate(CompilationInfo* compilation_info); |
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private: |
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MacroAssembler* masm() { return masm_; } |
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CompilationInfo* info() { return info_; } |
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Register destination() { return destination_; } |
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void set_destination(Register reg) { destination_ = reg; } |
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FunctionLiteral* function() { return info_->function(); } |
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Scope* scope() { return info_->scope(); } |
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// Platform-specific fixed registers, all guaranteed distinct.
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Register accumulator0(); |
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Register accumulator1(); |
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Register scratch0(); |
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Register scratch1(); |
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Register receiver_reg(); |
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Register context_reg(); |
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Register other_accumulator(Register reg) { |
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ASSERT(reg.is(accumulator0()) || reg.is(accumulator1())); |
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return (reg.is(accumulator0())) ? accumulator1() : accumulator0(); |
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} |
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// Flags are true if the respective register is statically known to hold a
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// smi. We do not track every register, only the accumulator registers.
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bool is_smi(Register reg) { |
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ASSERT(!reg.is(no_reg)); |
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return (smi_bits_ & reg.bit()) != 0; |
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} |
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void set_as_smi(Register reg) { |
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ASSERT(!reg.is(no_reg)); |
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smi_bits_ = smi_bits_ | reg.bit(); |
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} |
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void clear_as_smi(Register reg) { |
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ASSERT(!reg.is(no_reg)); |
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smi_bits_ = smi_bits_ & ~reg.bit(); |
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} |
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// AST node visit functions.
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#define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
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AST_NODE_LIST(DECLARE_VISIT) |
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#undef DECLARE_VISIT |
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// Emit code to load the receiver from the stack into receiver_reg.
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void EmitLoadReceiver(); |
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// Emit code to load a global variable directly from a global property
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// cell into the destination register.
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void EmitGlobalVariableLoad(Handle<Object> cell); |
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// Emit a store to an own property of this. The stored value is expected
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// in accumulator0 and the receiver in receiver_reg. The receiver
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// register is preserved and the result (the stored value) is left in the
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// destination register.
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void EmitThisPropertyStore(Handle<String> name); |
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// Emit a load from an own property of this. The receiver is expected in
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// receiver_reg. The receiver register is preserved and the result is
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// left in the destination register.
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void EmitThisPropertyLoad(Handle<String> name); |
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// Emit a bitwise or operation. The left operand is in accumulator1 and
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// the right is in accumulator0. The result should be left in the
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// destination register.
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void EmitBitOr(); |
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MacroAssembler* masm_; |
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CompilationInfo* info_; |
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Register destination_; |
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uint32_t smi_bits_; |
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DISALLOW_COPY_AND_ASSIGN(FastCodeGenerator); |
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}; |
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} } // namespace v8::internal
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#endif // V8_FAST_CODEGEN_IA32_H_
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@ -0,0 +1,62 @@ |
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// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
|
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// modification, are permitted provided that the following conditions are
|
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// met:
|
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//
|
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// * Redistributions of source code must retain the above copyright
|
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// notice, this list of conditions and the following disclaimer.
|
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// * Redistributions in binary form must reproduce the above
|
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// copyright notice, this list of conditions and the following
|
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// disclaimer in the documentation and/or other materials provided
|
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// with the distribution.
|
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// * Neither the name of Google Inc. nor the names of its
|
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// contributors may be used to endorse or promote products derived
|
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// from this software without specific prior written permission.
|
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//
|
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// When this bug is corrected move to object-define-property and add
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// additional tests for configurable in the same manner as existing tests
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// there.
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var obj = {}; |
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obj[1] = 42; |
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assertEquals(42, obj[1]); |
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Object.defineProperty(obj, '1', {value:10, writable:false}); |
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assertEquals(10, obj[1]); |
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// We should not be able to override obj[1].
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obj[1] = 5; |
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assertEquals(10, obj[1]); |
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// Try on a range of numbers.
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for(var i = 0; i < 1024; i++) { |
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obj[i] = 42; |
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} |
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for(var i = 0; i < 1024; i++) { |
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Object.defineProperty(obj, i, {value: i, writable:false}); |
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} |
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for(var i = 0; i < 1024; i++) { |
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assertEquals(i, obj[i]); |
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} |
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for(var i = 0; i < 1024; i++) { |
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obj[1] = 5; |
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} |
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for(var i = 0; i < 1024; i++) { |
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assertEquals(i, obj[i]); |
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} |
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