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 "../SkSLCompiler.h" 13 #include "../SkSLLexer.h" 14 15 namespace SkSL { 16 17 /** 18 * An expression modified by a unary operator appearing in front of it, such as '-x' or '!inside'. 19 */ 20 struct ASTPrefixExpression : public ASTExpression { 21 ASTPrefixExpression(Token op, std::unique_ptr<ASTExpression> operand) 22 : INHERITED(op.fOffset, kPrefix_Kind) 23 , fOperator(op.fKind) 24 , fOperand(std::move(operand)) {} 25 26 String description() const override { 27 return Compiler::OperatorName(fOperator) + fOperand->description(); 28 } 29 30 const Token::Kind fOperator; 31 const std::unique_ptr<ASTExpression> fOperand; 32 33 typedef ASTExpression INHERITED; 34 }; 35 36 } // namespace 37 38 #endif 39
