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_FUNCTIONDEFINITION |
9 | #define SKSL_FUNCTIONDEFINITION |
10 | |
11 | #include "src/sksl/ir/SkSLBlock.h" |
12 | #include "src/sksl/ir/SkSLFunctionDeclaration.h" |
13 | #include "src/sksl/ir/SkSLProgramElement.h" |
14 | |
15 | namespace SkSL { |
16 | |
17 | struct ASTNode; |
18 | |
19 | /** |
20 | * A function definition (a declaration plus an associated block of code). |
21 | */ |
22 | struct FunctionDefinition : public ProgramElement { |
23 | FunctionDefinition(int offset, const FunctionDeclaration& declaration, |
24 | std::unique_ptr<Statement> body) |
25 | : INHERITED(offset, kFunction_Kind) |
26 | , fDeclaration(declaration) |
27 | , fBody(std::move(body)) {} |
28 | |
29 | std::unique_ptr<ProgramElement> clone() const override { |
30 | return std::unique_ptr<ProgramElement>(new FunctionDefinition(fOffset, fDeclaration, |
31 | fBody->clone())); |
32 | } |
33 | |
34 | #ifdef SK_DEBUG |
35 | String description() const override { |
36 | return fDeclaration.description() + " "+ fBody->description(); |
37 | } |
38 | #endif |
39 | |
40 | const FunctionDeclaration& fDeclaration; |
41 | std::unique_ptr<Statement> fBody; |
42 | // This pointer may be null, and even when non-null is not guaranteed to remain valid for the |
43 | // entire lifespan of this object. The parse tree's lifespan is normally controlled by |
44 | // IRGenerator, so the IRGenerator being destroyed or being used to compile another file will |
45 | // invalidate this pointer. |
46 | const ASTNode* fSource = nullptr; |
47 | |
48 | typedef ProgramElement INHERITED; |
49 | }; |
50 | |
51 | } // namespace |
52 | |
53 | #endif |
54 |