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_ASTPREFIXEXPRESSION 9 #define SKSL_ASTPREFIXEXPRESSION 10 11 #include "SkSLASTExpression.h" 12 #include "../SkSLToken.h" 13 14 namespace SkSL { 15 16 /** 17 * An expression modified by a unary operator appearing in front of it, such as '-x' or '!inside'. 18 */ 19 struct ASTPrefixExpression : public ASTExpression { ASTPrefixExpressionASTPrefixExpression20 ASTPrefixExpression(Token op, std::unique_ptr<ASTExpression> operand) 21 : INHERITED(op.fPosition, kPrefix_Kind) 22 , fOperator(op.fKind) 23 , fOperand(std::move(operand)) {} 24 descriptionASTPrefixExpression25 String description() const override { 26 return Token::OperatorName(fOperator) + fOperand->description(); 27 } 28 29 const Token::Kind fOperator; 30 const std::unique_ptr<ASTExpression> fOperand; 31 32 typedef ASTExpression INHERITED; 33 }; 34 35 } // namespace 36 37 #endif 38