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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_ASTMODIFIERS
#define SKSL_ASTMODIFIERS
#include "SkSLASTLayout.h"
#include "SkSLASTNode.h"
namespace SkSL {
/**
* A set of modifier keywords (in, out, uniform, etc.) appearing before a declaration.
*/
struct ASTModifiers : public ASTNode {
enum Flag {
kNo_Flag = 0,
kConst_Flag = 1,
kIn_Flag = 2,
kOut_Flag = 4,
kLowp_Flag = 8,
kMediump_Flag = 16,
kHighp_Flag = 32,
kUniform_Flag = 64,
kFlat_Flag = 128,
kNoPerspective_Flag = 256
};
ASTModifiers(ASTLayout layout, int flags)
: fLayout(layout)
, fFlags(flags) {}
std::string description() const override {
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;
}
const ASTLayout fLayout;
const int fFlags;
};
} // namespace
#endif
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