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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_ASTSUFFIX | |
9 #define SKSL_ASTSUFFIX | |
10 | |
11 #include "SkSLASTPositionNode.h" | |
12 #include "SkSLASTExpression.h" | |
13 | |
14 namespace SkSL { | |
15 | |
16 /** | |
17 * Abstract supertype of all expression suffixes, such as '[0]' or '.rgb'. Suffi xes are not | |
dogben
2016/06/20 16:23:18
nit: "Abstract" is not quite true, since this is i
| |
18 * expressions in and of themselves; they are attached to expressions to modify them. | |
19 */ | |
20 struct ASTSuffix : public ASTPositionNode { | |
21 enum Kind { | |
22 kIndex_Kind, | |
23 kCall_Kind, | |
24 kField_Kind, | |
25 kPostIncrement_Kind, | |
26 kPostDecrement_Kind | |
27 }; | |
28 | |
29 ASTSuffix(Position position, Kind kind) | |
30 : INHERITED(position) | |
31 , fKind(kind) {} | |
32 | |
33 std::string description() const override { | |
34 switch (fKind) { | |
35 case kPostIncrement_Kind: | |
36 return "++"; | |
37 case kPostDecrement_Kind: | |
38 return "--"; | |
39 default: | |
40 ABORT("unsupported suffix operator"); | |
41 } | |
42 } | |
43 | |
44 Kind fKind; | |
45 | |
46 typedef ASTPositionNode INHERITED; | |
47 }; | |
48 | |
49 } // namespace | |
50 | |
51 #endif | |
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