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1 /* | |
2 * Copyright 2016 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #ifndef SKSL_ASTPRECISION | |
9 #define SKSL_ASTPRECISION | |
10 | |
11 #include "SkSLASTDeclaration.h" | |
12 #include "../ir/SkSLModifiers.h" | |
13 | |
14 namespace SkSL { | |
15 | |
16 /** | |
17 * Represents a precision declaration (e.g. 'precision mediump float;'). | |
18 */ | |
19 struct ASTPrecision : public ASTDeclaration { | |
20 // FIXME handle the type | |
21 ASTPrecision(Position position, Modifiers::Flag precision) | |
22 : INHERITED(position, kPrecision_Kind) | |
23 , fPrecision(precision) {} | |
24 | |
25 std::string description() const { | |
26 switch (fPrecision) { | |
27 case Modifiers::kLowp_Flag: return "precision lowp float;"; | |
28 case Modifiers::kMediump_Flag: return "precision mediump float;"; | |
29 case Modifiers::kHighp_Flag: return "precision highp float;"; | |
30 default: | |
31 ASSERT(false); | |
32 return "<error>"; | |
33 } | |
34 ASSERT(false); | |
35 return "<error>"; | |
36 } | |
37 | |
38 const Modifiers::Flag fPrecision; | |
39 | |
40 typedef ASTDeclaration INHERITED; | |
41 }; | |
42 | |
43 } // namespace | |
44 | |
45 #endif | |
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