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_BOOLLITERAL
9 #define SKSL_BOOLLITERAL
10 
11 #include "SkSLContext.h"
12 #include "SkSLExpression.h"
13 
14 namespace SkSL {
15 
16 /**
17  * Represents 'true' or 'false'.
18  */
19 struct BoolLiteral : public Expression {
BoolLiteralBoolLiteral20     BoolLiteral(const Context& context, int offset, bool value)
21     : INHERITED(offset, kBoolLiteral_Kind, *context.fBool_Type)
22     , fValue(value) {}
23 
descriptionBoolLiteral24     String description() const override {
25         return String(fValue ? "true" : "false");
26     }
27 
hasSideEffectsBoolLiteral28     bool hasSideEffects() const override {
29         return false;
30     }
31 
isConstantBoolLiteral32     bool isConstant() const override {
33         return true;
34     }
35 
compareConstantBoolLiteral36     bool compareConstant(const Context& context, const Expression& other) const override {
37         BoolLiteral& b = (BoolLiteral&) other;
38         return fValue == b.fValue;
39     }
40 
cloneBoolLiteral41     std::unique_ptr<Expression> clone() const override {
42         return std::unique_ptr<Expression>(new BoolLiteral(fOffset, fValue, &fType));
43     }
44 
45     const bool fValue;
46 
47     typedef Expression INHERITED;
48 
49 private:
BoolLiteralBoolLiteral50     BoolLiteral(int offset, bool value, const Type* type)
51     : INHERITED(offset, kBoolLiteral_Kind, *type)
52     , fValue(value) {}
53 };
54 
55 } // namespace
56 
57 #endif
58