1*c8dee2aaSAndroid Build Coastguard Worker /* 2*c8dee2aaSAndroid Build Coastguard Worker * Copyright 2016 Google Inc. 3*c8dee2aaSAndroid Build Coastguard Worker * 4*c8dee2aaSAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license that can be 5*c8dee2aaSAndroid Build Coastguard Worker * found in the LICENSE file. 6*c8dee2aaSAndroid Build Coastguard Worker */ 7*c8dee2aaSAndroid Build Coastguard Worker 8*c8dee2aaSAndroid Build Coastguard Worker #ifndef SKSL_NOP 9*c8dee2aaSAndroid Build Coastguard Worker #define SKSL_NOP 10*c8dee2aaSAndroid Build Coastguard Worker 11*c8dee2aaSAndroid Build Coastguard Worker #include "src/sksl/ir/SkSLStatement.h" 12*c8dee2aaSAndroid Build Coastguard Worker #include "src/sksl/ir/SkSLSymbolTable.h" 13*c8dee2aaSAndroid Build Coastguard Worker 14*c8dee2aaSAndroid Build Coastguard Worker namespace SkSL { 15*c8dee2aaSAndroid Build Coastguard Worker 16*c8dee2aaSAndroid Build Coastguard Worker /** 17*c8dee2aaSAndroid Build Coastguard Worker * A no-op statement that does nothing. 18*c8dee2aaSAndroid Build Coastguard Worker */ 19*c8dee2aaSAndroid Build Coastguard Worker class Nop final : public Statement { 20*c8dee2aaSAndroid Build Coastguard Worker public: 21*c8dee2aaSAndroid Build Coastguard Worker inline static constexpr Kind kIRNodeKind = Kind::kNop; 22*c8dee2aaSAndroid Build Coastguard Worker Nop()23*c8dee2aaSAndroid Build Coastguard Worker Nop() 24*c8dee2aaSAndroid Build Coastguard Worker : INHERITED(Position(), kIRNodeKind) {} 25*c8dee2aaSAndroid Build Coastguard Worker Make()26*c8dee2aaSAndroid Build Coastguard Worker static std::unique_ptr<Statement> Make() { 27*c8dee2aaSAndroid Build Coastguard Worker return std::make_unique<Nop>(); 28*c8dee2aaSAndroid Build Coastguard Worker } 29*c8dee2aaSAndroid Build Coastguard Worker isEmpty()30*c8dee2aaSAndroid Build Coastguard Worker bool isEmpty() const override { 31*c8dee2aaSAndroid Build Coastguard Worker return true; 32*c8dee2aaSAndroid Build Coastguard Worker } 33*c8dee2aaSAndroid Build Coastguard Worker description()34*c8dee2aaSAndroid Build Coastguard Worker std::string description() const override { 35*c8dee2aaSAndroid Build Coastguard Worker return ";"; 36*c8dee2aaSAndroid Build Coastguard Worker } 37*c8dee2aaSAndroid Build Coastguard Worker 38*c8dee2aaSAndroid Build Coastguard Worker private: 39*c8dee2aaSAndroid Build Coastguard Worker using INHERITED = Statement; 40*c8dee2aaSAndroid Build Coastguard Worker }; 41*c8dee2aaSAndroid Build Coastguard Worker 42*c8dee2aaSAndroid Build Coastguard Worker } // namespace SkSL 43*c8dee2aaSAndroid Build Coastguard Worker 44*c8dee2aaSAndroid Build Coastguard Worker #endif 45