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/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
*/
#pragma once
#if ENABLE(B3_JIT)
#include "B3SwitchCase.h"
namespace JSC { namespace B3 {
class BasicBlock;
class SwitchValue;
// NOTE: You'll always want to include B3CaseCollectionInlines.h when you use this.
class CaseCollection {
public:
CaseCollection()
{
}
CaseCollection(const SwitchValue* terminal, const BasicBlock* owner)
: m_switch(terminal)
, m_owner(owner)
{
}
const FrequentedBlock& fallThrough() const;
unsigned size() const;
SwitchCase at(unsigned index) const;
SwitchCase operator[](unsigned index) const
{
return at(index);
}
class iterator {
public:
iterator()
: m_collection(nullptr)
, m_index(0)
{
}
iterator(const CaseCollection& collection, unsigned index)
: m_collection(&collection)
, m_index(index)
{
}
SwitchCase operator*()
{
return m_collection->at(m_index);
}
iterator& operator++()
{
m_index++;
return *this;
}
bool operator==(const iterator& other) const
{
ASSERT(m_collection == other.m_collection);
return m_index == other.m_index;
}
private:
const CaseCollection* m_collection;
unsigned m_index;
};
typedef iterator const_iterator;
iterator begin() const { return iterator(*this, 0); }
iterator end() const { return iterator(*this, size()); }
void dump(PrintStream&) const;
private:
const SwitchValue* m_switch { nullptr };
const BasicBlock* m_owner { nullptr };
};
} } // namespace JSC::B3
#endif // ENABLE(B3_JIT)
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