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Diffstat (limited to 'src/sksl/ast/SkSLASTModifiers.h')
-rw-r--r-- | src/sksl/ast/SkSLASTModifiers.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/sksl/ast/SkSLASTModifiers.h b/src/sksl/ast/SkSLASTModifiers.h new file mode 100644 index 0000000000..6ef29aa72a --- /dev/null +++ b/src/sksl/ast/SkSLASTModifiers.h @@ -0,0 +1,70 @@ +/* + * 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 + }; + + 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 & 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 |