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(int offset, Modifiers::Flag precision) 22 : INHERITED(offset, kPrecision_Kind) 23 , fPrecision(precision) {} 24 25 String description() const { 26 switch (fPrecision) { 27 case Modifiers::kLowp_Flag: return String("precision lowp float;"); 28 case Modifiers::kMediump_Flag: return String("precision mediump float;"); 29 case Modifiers::kHighp_Flag: return String("precision highp float;"); 30 default: 31 ASSERT(false); 32 return String("<error>"); 33 } 34 ASSERT(false); 35 return String("<error>"); 36 } 37 38 const Modifiers::Flag fPrecision; 39 40 typedef ASTDeclaration INHERITED; 41 }; 42 43 } // namespace 44 45 #endif 46
