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_TERNARYEXPRESSION 9 #define SKSL_TERNARYEXPRESSION 10 11 #include "SkSLExpression.h" 12 #include "../SkSLPosition.h" 13 14 namespace SkSL { 15 16 /** 17 * A ternary expression (test ? ifTrue : ifFalse). 18 */ 19 struct TernaryExpression : public Expression { TernaryExpressionTernaryExpression20 TernaryExpression(int offset, std::unique_ptr<Expression> test, 21 std::unique_ptr<Expression> ifTrue, std::unique_ptr<Expression> ifFalse) 22 : INHERITED(offset, kTernary_Kind, ifTrue->fType) 23 , fTest(std::move(test)) 24 , fIfTrue(std::move(ifTrue)) 25 , fIfFalse(std::move(ifFalse)) { 26 SkASSERT(fIfTrue->fType == fIfFalse->fType); 27 } 28 hasSideEffectsTernaryExpression29 bool hasSideEffects() const override { 30 return fTest->hasSideEffects() || fIfTrue->hasSideEffects() || fIfFalse->hasSideEffects(); 31 } 32 cloneTernaryExpression33 std::unique_ptr<Expression> clone() const override { 34 return std::unique_ptr<Expression>(new TernaryExpression(fOffset, fTest->clone(), 35 fIfTrue->clone(), 36 fIfFalse->clone())); 37 } 38 descriptionTernaryExpression39 String description() const override { 40 return "(" + fTest->description() + " ? " + fIfTrue->description() + " : " + 41 fIfFalse->description() + ")"; 42 } 43 44 std::unique_ptr<Expression> fTest; 45 std::unique_ptr<Expression> fIfTrue; 46 std::unique_ptr<Expression> fIfFalse; 47 48 typedef Expression INHERITED; 49 }; 50 51 } // namespace 52 53 #endif 54