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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SKSL_FIELDACCESS | 8 #ifndef SKSL_FIELDACCESS |
9 #define SKSL_FIELDACCESS | 9 #define SKSL_FIELDACCESS |
10 | 10 |
11 #include "SkSLExpression.h" | 11 #include "SkSLExpression.h" |
12 #include "SkSLUtil.h" | 12 #include "SkSLUtil.h" |
13 | 13 |
14 namespace SkSL { | 14 namespace SkSL { |
15 | 15 |
16 /** | 16 /** |
17 * An expression which extracts a field from a struct, as in 'foo.bar'. | 17 * An expression which extracts a field from a struct, as in 'foo.bar'. |
18 */ | 18 */ |
19 struct FieldAccess : public Expression { | 19 struct FieldAccess : public Expression { |
20 enum OwnerKind { | 20 enum OwnerKind { |
21 kDefault_OwnerKind, | 21 kDefault_OwnerKind, |
22 // this field access is to a field of an anonymous interface block (and
thus, the field name | 22 // this field access is to a field of an anonymous interface block (and
thus, the field name |
23 // is actually in global scope, so only the field name needs to be writt
en in GLSL) | 23 // is actually in global scope, so only the field name needs to be writt
en in GLSL) |
24 kAnonymousInterfaceBlock_OwnerKind | 24 kAnonymousInterfaceBlock_OwnerKind |
25 }; | 25 }; |
26 | 26 |
27 FieldAccess(std::unique_ptr<Expression> base, int fieldIndex, | 27 FieldAccess(std::unique_ptr<Expression> base, int fieldIndex, |
28 OwnerKind ownerKind = kDefault_OwnerKind) | 28 OwnerKind ownerKind = kDefault_OwnerKind) |
29 : INHERITED(base->fPosition, kFieldAccess_Kind, base->fType.fields()[fieldIn
dex].fType) | 29 : INHERITED(base->fPosition, kFieldAccess_Kind, *base->fType.fields()[fieldI
ndex].fType) |
30 , fBase(std::move(base)) | 30 , fBase(std::move(base)) |
31 , fFieldIndex(fieldIndex) | 31 , fFieldIndex(fieldIndex) |
32 , fOwnerKind(ownerKind) {} | 32 , fOwnerKind(ownerKind) {} |
33 | 33 |
34 virtual std::string description() const override { | 34 virtual std::string description() const override { |
35 return fBase->description() + "." + fBase->fType.fields()[fFieldIndex].f
Name; | 35 return fBase->description() + "." + fBase->fType.fields()[fFieldIndex].f
Name; |
36 } | 36 } |
37 | 37 |
38 const std::unique_ptr<Expression> fBase; | 38 const std::unique_ptr<Expression> fBase; |
39 const int fFieldIndex; | 39 const int fFieldIndex; |
40 const OwnerKind fOwnerKind; | 40 const OwnerKind fOwnerKind; |
41 | 41 |
42 typedef Expression INHERITED; | 42 typedef Expression INHERITED; |
43 }; | 43 }; |
44 | 44 |
45 } // namespace | 45 } // namespace |
46 | 46 |
47 #endif | 47 #endif |
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