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//
// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef COMPILER_TRANSLATOR_CONSTANTUNION_H_
#define COMPILER_TRANSLATOR_CONSTANTUNION_H_
#include <assert.h>
#include "compiler/translator/Common.h"
#include "compiler/translator/BaseTypes.h"
namespace sh
{
class TDiagnostics;
class TConstantUnion
{
public:
POOL_ALLOCATOR_NEW_DELETE();
TConstantUnion();
bool cast(TBasicType newType, const TConstantUnion &constant);
void setIConst(int i) {iConst = i; type = EbtInt; }
void setUConst(unsigned int u) { uConst = u; type = EbtUInt; }
void setFConst(float f) {fConst = f; type = EbtFloat; }
void setBConst(bool b) {bConst = b; type = EbtBool; }
int getIConst() const { return iConst; }
unsigned int getUConst() const { return uConst; }
float getFConst() const { return fConst; }
bool getBConst() const { return bConst; }
bool operator==(const int i) const;
bool operator==(const unsigned int u) const;
bool operator==(const float f) const;
bool operator==(const bool b) const;
bool operator==(const TConstantUnion &constant) const;
bool operator!=(const int i) const;
bool operator!=(const unsigned int u) const;
bool operator!=(const float f) const;
bool operator!=(const bool b) const;
bool operator!=(const TConstantUnion &constant) const;
bool operator>(const TConstantUnion &constant) const;
bool operator<(const TConstantUnion &constant) const;
static TConstantUnion add(const TConstantUnion &lhs,
const TConstantUnion &rhs,
TDiagnostics *diag,
const TSourceLoc &line);
static TConstantUnion sub(const TConstantUnion &lhs,
const TConstantUnion &rhs,
TDiagnostics *diag,
const TSourceLoc &line);
static TConstantUnion mul(const TConstantUnion &lhs,
const TConstantUnion &rhs,
TDiagnostics *diag,
const TSourceLoc &line);
TConstantUnion operator%(const TConstantUnion &constant) const;
static TConstantUnion rshift(const TConstantUnion &lhs,
const TConstantUnion &rhs,
TDiagnostics *diag,
const TSourceLoc &line);
static TConstantUnion lshift(const TConstantUnion &lhs,
const TConstantUnion &rhs,
TDiagnostics *diag,
const TSourceLoc &line);
TConstantUnion operator&(const TConstantUnion &constant) const;
TConstantUnion operator|(const TConstantUnion &constant) const;
TConstantUnion operator^(const TConstantUnion &constant) const;
TConstantUnion operator&&(const TConstantUnion &constant) const;
TConstantUnion operator||(const TConstantUnion &constant) const;
TBasicType getType() const { return type; }
private:
union {
int iConst; // used for ivec, scalar ints
unsigned int uConst; // used for uvec, scalar uints
bool bConst; // used for bvec, scalar bools
float fConst; // used for vec, mat, scalar floats
};
TBasicType type;
};
} // namespace sh
#endif // COMPILER_TRANSLATOR_CONSTANTUNION_H_
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