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_IFSTATEMENT
9 #define SKSL_IFSTATEMENT
10 
11 #include "SkSLExpression.h"
12 #include "SkSLStatement.h"
13 
14 namespace SkSL {
15 
16 /**
17  * An 'if' statement.
18  */
19 struct IfStatement : public Statement {
IfStatementIfStatement20     IfStatement(int offset, bool isStatic, std::unique_ptr<Expression> test,
21                 std::unique_ptr<Statement> ifTrue, std::unique_ptr<Statement> ifFalse)
22     : INHERITED(offset, kIf_Kind)
23     , fIsStatic(isStatic)
24     , fTest(std::move(test))
25     , fIfTrue(std::move(ifTrue))
26     , fIfFalse(std::move(ifFalse)) {}
27 
cloneIfStatement28     std::unique_ptr<Statement> clone() const override {
29         return std::unique_ptr<Statement>(new IfStatement(fOffset, fIsStatic, fTest->clone(),
30                 fIfTrue->clone(), fIfFalse ? fIfFalse->clone() : nullptr));
31     }
32 
descriptionIfStatement33     String description() const override {
34         String result;
35         if (fIsStatic) {
36             result += "@";
37         }
38         result += "if (" + fTest->description() + ") " + fIfTrue->description();
39         if (fIfFalse) {
40             result += " else " + fIfFalse->description();
41         }
42         return result;
43     }
44 
45     bool fIsStatic;
46     std::unique_ptr<Expression> fTest;
47     std::unique_ptr<Statement> fIfTrue;
48     // may be null
49     std::unique_ptr<Statement> fIfFalse;
50 
51     typedef Statement INHERITED;
52 };
53 
54 } // namespace
55 
56 #endif
57