| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_TERNARYEXPRESSION |
| #define SKSL_TERNARYEXPRESSION |
| |
| #include "src/sksl/SkSLPosition.h" |
| #include "src/sksl/ir/SkSLExpression.h" |
| |
| namespace SkSL { |
| |
| /** |
| * A ternary expression (test ? ifTrue : ifFalse). |
| */ |
| struct TernaryExpression : public Expression { |
| TernaryExpression(int offset, std::unique_ptr<Expression> test, |
| std::unique_ptr<Expression> ifTrue, std::unique_ptr<Expression> ifFalse) |
| : INHERITED(offset, kTernary_Kind, ifTrue->fType) |
| , fTest(std::move(test)) |
| , fIfTrue(std::move(ifTrue)) |
| , fIfFalse(std::move(ifFalse)) { |
| SkASSERT(fIfTrue->fType == fIfFalse->fType); |
| } |
| |
| bool hasProperty(Property property) const override { |
| return fTest->hasProperty(property) || fIfTrue->hasProperty(property) || |
| fIfFalse->hasProperty(property); |
| } |
| |
| bool isConstantOrUniform() const override { |
| return fTest->isConstantOrUniform() && fIfTrue->isConstantOrUniform() && |
| fIfFalse->isConstantOrUniform(); |
| } |
| |
| int nodeCount() const override { |
| return 1 + fTest->nodeCount() + fIfTrue->nodeCount() + fIfFalse->nodeCount(); |
| } |
| |
| std::unique_ptr<Expression> clone() const override { |
| return std::unique_ptr<Expression>(new TernaryExpression(fOffset, fTest->clone(), |
| fIfTrue->clone(), |
| fIfFalse->clone())); |
| } |
| |
| String description() const override { |
| return "(" + fTest->description() + " ? " + fIfTrue->description() + " : " + |
| fIfFalse->description() + ")"; |
| } |
| |
| std::unique_ptr<Expression> fTest; |
| std::unique_ptr<Expression> fIfTrue; |
| std::unique_ptr<Expression> fIfFalse; |
| |
| typedef Expression INHERITED; |
| }; |
| |
| } // namespace |
| |
| #endif |