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69 lines
2.7 KiB
69 lines
2.7 KiB
// 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_VIRTUAL_FRAME_LIGHT_INL_H_
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#define V8_VIRTUAL_FRAME_LIGHT_INL_H_
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#include "type-info.h"
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#include "register-allocator.h"
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#include "scopes.h"
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namespace v8 {
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namespace internal {
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// On entry to a function, the virtual frame already contains the receiver,
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// the parameters, and a return address. All frame elements are in memory.
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VirtualFrame::VirtualFrame()
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: element_count_(parameter_count() + 2),
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top_of_stack_state_(NO_TOS_REGISTERS),
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register_allocation_map_(0) { }
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// When cloned, a frame is a deep copy of the original.
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VirtualFrame::VirtualFrame(VirtualFrame* original)
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: element_count_(original->element_count()),
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top_of_stack_state_(original->top_of_stack_state_),
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register_allocation_map_(original->register_allocation_map_) { }
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bool VirtualFrame::Equals(VirtualFrame* other) {
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ASSERT(element_count() == other->element_count());
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if (top_of_stack_state_ != other->top_of_stack_state_) return false;
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if (register_allocation_map_ != other->register_allocation_map_) return false;
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return true;
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}
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void VirtualFrame::PrepareForReturn() {
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SpillAll();
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}
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} } // namespace v8::internal
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#endif // V8_VIRTUAL_FRAME_LIGHT_INL_H_
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