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
15namespace SkSL {
16
17/**
18 * An expression modified by a unary operator appearing in front of it, such as '-x' or '!inside'.
19 */
20struct 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