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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- TemplateInstCallback.h - Template Instantiation Callback - C++ --===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===---------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This file defines the TemplateInstantiationCallback class, which is the |
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| 10 | // base class for callbacks that will be notified at template instantiations. |
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| 11 | // |
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| 12 | //===---------------------------------------------------------------------===// |
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| 13 | |||
| 14 | #ifndef LLVM_CLANG_SEMA_TEMPLATEINSTCALLBACK_H |
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| 15 | #define LLVM_CLANG_SEMA_TEMPLATEINSTCALLBACK_H |
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| 16 | |||
| 17 | #include "clang/Sema/Sema.h" |
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| 18 | |||
| 19 | namespace clang { |
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| 20 | |||
| 21 | /// This is a base class for callbacks that will be notified at every |
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| 22 | /// template instantiation. |
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| 23 | class TemplateInstantiationCallback { |
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| 24 | public: |
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| 25 | virtual ~TemplateInstantiationCallback() = default; |
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| 26 | |||
| 27 | /// Called before doing AST-parsing. |
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| 28 | virtual void initialize(const Sema &TheSema) = 0; |
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| 29 | |||
| 30 | /// Called after AST-parsing is completed. |
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| 31 | virtual void finalize(const Sema &TheSema) = 0; |
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| 32 | |||
| 33 | /// Called when instantiation of a template just began. |
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| 34 | virtual void atTemplateBegin(const Sema &TheSema, |
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| 35 | const Sema::CodeSynthesisContext &Inst) = 0; |
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| 36 | |||
| 37 | /// Called when instantiation of a template is just about to end. |
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| 38 | virtual void atTemplateEnd(const Sema &TheSema, |
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| 39 | const Sema::CodeSynthesisContext &Inst) = 0; |
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| 40 | }; |
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| 41 | |||
| 42 | template <class TemplateInstantiationCallbackPtrs> |
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| 43 | void initialize(TemplateInstantiationCallbackPtrs &Callbacks, |
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| 44 | const Sema &TheSema) { |
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| 45 | for (auto &C : Callbacks) { |
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| 46 | if (C) |
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| 47 | C->initialize(TheSema); |
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| 48 | } |
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| 49 | } |
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| 50 | |||
| 51 | template <class TemplateInstantiationCallbackPtrs> |
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| 52 | void finalize(TemplateInstantiationCallbackPtrs &Callbacks, |
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| 53 | const Sema &TheSema) { |
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| 54 | for (auto &C : Callbacks) { |
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| 55 | if (C) |
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| 56 | C->finalize(TheSema); |
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| 57 | } |
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| 58 | } |
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| 59 | |||
| 60 | template <class TemplateInstantiationCallbackPtrs> |
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| 61 | void atTemplateBegin(TemplateInstantiationCallbackPtrs &Callbacks, |
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| 62 | const Sema &TheSema, |
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| 63 | const Sema::CodeSynthesisContext &Inst) { |
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| 64 | for (auto &C : Callbacks) { |
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| 65 | if (C) |
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| 66 | C->atTemplateBegin(TheSema, Inst); |
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| 67 | } |
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| 68 | } |
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| 69 | |||
| 70 | template <class TemplateInstantiationCallbackPtrs> |
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| 71 | void atTemplateEnd(TemplateInstantiationCallbackPtrs &Callbacks, |
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| 72 | const Sema &TheSema, |
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| 73 | const Sema::CodeSynthesisContext &Inst) { |
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| 74 | for (auto &C : Callbacks) { |
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| 75 | if (C) |
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| 76 | C->atTemplateEnd(TheSema, Inst); |
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| 77 | } |
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| 78 | } |
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| 79 | |||
| 80 | } // namespace clang |
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| 81 | |||
| 82 | #endif |