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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_MODIFIERS
#define SKSL_MODIFIERS
#include "../ast/SkSLASTModifiers.h"
#include "SkSLLayout.h"
namespace SkSL {
/**
* A set of modifier keywords (in, out, uniform, etc.) appearing before a declaration.
*/
struct Modifiers {
enum Flag {
kNo_Flag = ASTModifiers::kNo_Flag,
kConst_Flag = ASTModifiers::kConst_Flag,
kIn_Flag = ASTModifiers::kIn_Flag,
kOut_Flag = ASTModifiers::kOut_Flag,
kLowp_Flag = ASTModifiers::kLowp_Flag,
kMediump_Flag = ASTModifiers::kMediump_Flag,
kHighp_Flag = ASTModifiers::kHighp_Flag,
kUniform_Flag = ASTModifiers::kUniform_Flag,
kFlat_Flag = ASTModifiers::kFlat_Flag,
kNoPerspective_Flag = ASTModifiers::kNoPerspective_Flag
};
Modifiers(const ASTModifiers& modifiers)
: fLayout(modifiers.fLayout)
, fFlags(modifiers.fFlags) {}
Modifiers(Layout& layout, int flags)
: fLayout(layout)
, fFlags(flags) {}
std::string description() const {
std::string result = fLayout.description();
if (fFlags & kUniform_Flag) {
result += "uniform ";
}
if (fFlags & kConst_Flag) {
result += "const ";
}
if (fFlags & kLowp_Flag) {
result += "lowp ";
}
if (fFlags & kMediump_Flag) {
result += "mediump ";
}
if (fFlags & kHighp_Flag) {
result += "highp ";
}
if (fFlags & kFlat_Flag) {
result += "flat ";
}
if (fFlags & kNoPerspective_Flag) {
result += "noperspective ";
}
if ((fFlags & kIn_Flag) && (fFlags & kOut_Flag)) {
result += "inout ";
} else if (fFlags & kIn_Flag) {
result += "in ";
} else if (fFlags & kOut_Flag) {
result += "out ";
}
return result;
}
bool operator==(const Modifiers& other) const {
return fLayout == other.fLayout && fFlags == other.fFlags;
}
bool operator!=(const Modifiers& other) const {
return !(*this == other);
}
Layout fLayout;
int fFlags;
};
} // namespace
#endif
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