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_ASTINTERFACEBLOCK 9 #define SKSL_ASTINTERFACEBLOCK 10 11 #include "SkSLASTVarDeclaration.h" 12 #include "../ir/SkSLModifiers.h" 13 14 namespace SkSL { 15 16 /** 17 * An interface block, as in: 18 * 19 * out sk_PerVertex { 20 * layout(builtin=0) float4 sk_Position; 21 * layout(builtin=1) float sk_PointSize; 22 * }; 23 */ 24 struct ASTInterfaceBlock : public ASTDeclaration { 25 // valueName is empty when it was not present in the source 26 ASTInterfaceBlock(int offset, 27 Modifiers modifiers, 28 StringFragment typeName, 29 std::vector<std::unique_ptr<ASTVarDeclarations>> declarations, 30 StringFragment instanceName, 31 std::vector<std::unique_ptr<ASTExpression>> sizes) 32 : INHERITED(offset, kInterfaceBlock_Kind) 33 , fModifiers(modifiers) 34 , fTypeName(typeName) 35 , fDeclarations(std::move(declarations)) 36 , fInstanceName(instanceName) 37 , fSizes(std::move(sizes)) {} 38 39 String description() const override { 40 String result = fModifiers.description() + fTypeName + " {\n"; 41 for (size_t i = 0; i < fDeclarations.size(); i++) { 42 result += fDeclarations[i]->description() + "\n"; 43 } 44 result += "}"; 45 if (fInstanceName.fLength) { 46 result += " " + fInstanceName; 47 for (const auto& size : fSizes) { 48 result += "["; 49 if (size) { 50 result += size->description(); 51 } 52 result += "]"; 53 } 54 } 55 return result + ";"; 56 } 57 58 const Modifiers fModifiers; 59 const StringFragment fTypeName; 60 const std::vector<std::unique_ptr<ASTVarDeclarations>> fDeclarations; 61 const StringFragment fInstanceName; 62 const std::vector<std::unique_ptr<ASTExpression>> fSizes; 63 64 typedef ASTDeclaration INHERITED; 65 }; 66 67 } // namespace 68 69 #endif 70
