77643dbef6
and extended the instanceof test case. Review URL: http://codereview.chromium.org/6341 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@470 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
// Copyright 2006-2008 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_CODE_STUBS_H_
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#define V8_CODE_STUBS_H_
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namespace v8 { namespace internal {
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// Stub is base classes of all stubs.
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class CodeStub BASE_EMBEDDED {
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public:
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enum Major {
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CallFunction,
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GenericBinaryOp,
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SmiOp,
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Compare,
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RecordWrite, // Last stub that allows stub calls inside.
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StackCheck,
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UnarySub,
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RevertToNumber,
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ToBoolean,
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Instanceof,
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CounterOp,
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ArgumentsAccess,
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Runtime,
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CEntry,
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JSEntry,
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GetProperty, // ARM only
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SetProperty, // ARM only
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InvokeBuiltin, // ARM only
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JSExit, // ARM only
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NUMBER_OF_IDS
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};
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// Retrieve the code for the stub. Generate the code if needed.
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Handle<Code> GetCode();
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static Major MajorKeyFromKey(uint32_t key) {
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return static_cast<Major>(MajorKeyBits::decode(key));
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};
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static int MinorKeyFromKey(uint32_t key) {
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return MinorKeyBits::decode(key);
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};
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static const char* MajorName(Major major_key);
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virtual ~CodeStub() {}
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protected:
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static const int kMajorBits = 5;
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static const int kMinorBits = kBitsPerPointer - kMajorBits - kSmiTagSize;
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private:
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// Generates the assembler code for the stub.
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virtual void Generate(MacroAssembler* masm) = 0;
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// Returns information for computing the number key.
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virtual Major MajorKey() = 0;
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virtual int MinorKey() = 0;
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// Returns a name for logging/debugging purposes.
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virtual const char* GetName() { return MajorName(MajorKey()); }
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#ifdef DEBUG
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virtual void Print() { PrintF("%s\n", GetName()); }
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#endif
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// Computes the key based on major and minor.
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uint32_t GetKey() {
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ASSERT(static_cast<int>(MajorKey()) < NUMBER_OF_IDS);
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return MinorKeyBits::encode(MinorKey()) |
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MajorKeyBits::encode(MajorKey());
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}
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bool AllowsStubCalls() { return MajorKey() <= RecordWrite; }
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class MajorKeyBits: public BitField<uint32_t, 0, kMajorBits> {};
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class MinorKeyBits: public BitField<uint32_t, kMajorBits, kMinorBits> {};
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friend class BreakPointIterator;
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};
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} } // namespace v8::internal
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#endif // V8_CODE_STUBS_H_
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