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_FORSTATEMENT
9#define SKSL_FORSTATEMENT
10
11#include "src/sksl/ir/SkSLExpression.h"
12#include "src/sksl/ir/SkSLStatement.h"
13#include "src/sksl/ir/SkSLSymbolTable.h"
14
15namespace SkSL {
16
17/**
18 * A 'for' statement.
19 */
20struct ForStatement : public Statement {
21 ForStatement(int offset, std::unique_ptr<Statement> initializer,
22 std::unique_ptr<Expression> test, std::unique_ptr<Expression> next,
23 std::unique_ptr<Statement> statement, std::shared_ptr<SymbolTable> symbols)
24 : INHERITED(offset, kFor_Kind)
25 , fSymbols(symbols)
26 , fInitializer(std::move(initializer))
27 , fTest(std::move(test))
28 , fNext(std::move(next))
29 , fStatement(std::move(statement)) {}
30
31 std::unique_ptr<Statement> clone() const override {
32 return std::unique_ptr<Statement>(new ForStatement(fOffset, fInitializer->clone(),
33 fTest->clone(), fNext->clone(),
34 fStatement->clone(), fSymbols));
35 }
36
37#ifdef SK_DEBUG
38 String description() const override {
39 String result("for (");
40 if (fInitializer) {
41 result += fInitializer->description();
42 }
43 result += " ";
44 if (fTest) {
45 result += fTest->description();
46 }
47 result += "; ";
48 if (fNext) {
49 result += fNext->description();
50 }
51 result += ") " + fStatement->description();
52 return result;
53 }
54#endif
55
56 // it's important to keep fSymbols defined first (and thus destroyed last) because destroying
57 // the other fields can update symbol reference counts
58 const std::shared_ptr<SymbolTable> fSymbols;
59 std::unique_ptr<Statement> fInitializer;
60 std::unique_ptr<Expression> fTest;
61 std::unique_ptr<Expression> fNext;
62 std::unique_ptr<Statement> fStatement;
63
64 typedef Statement INHERITED;
65};
66
67} // namespace
68
69#endif
70