clang 19.0.0git
TemplateInstCallback.h
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1//===- TemplateInstCallback.h - Template Instantiation Callback - C++ --===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===---------------------------------------------------------------------===//
8//
9// This file defines the TemplateInstantiationCallback class, which is the
10// base class for callbacks that will be notified at template instantiations.
11//
12//===---------------------------------------------------------------------===//
13
14#ifndef LLVM_CLANG_SEMA_TEMPLATEINSTCALLBACK_H
15#define LLVM_CLANG_SEMA_TEMPLATEINSTCALLBACK_H
16
17#include "clang/Sema/Sema.h"
18
19namespace clang {
20
21/// This is a base class for callbacks that will be notified at every
22/// template instantiation.
24public:
25 virtual ~TemplateInstantiationCallback() = default;
26
27 /// Called before doing AST-parsing.
28 virtual void initialize(const Sema &TheSema) = 0;
29
30 /// Called after AST-parsing is completed.
31 virtual void finalize(const Sema &TheSema) = 0;
32
33 /// Called when instantiation of a template just began.
34 virtual void atTemplateBegin(const Sema &TheSema,
35 const Sema::CodeSynthesisContext &Inst) = 0;
36
37 /// Called when instantiation of a template is just about to end.
38 virtual void atTemplateEnd(const Sema &TheSema,
39 const Sema::CodeSynthesisContext &Inst) = 0;
40};
41
42template <class TemplateInstantiationCallbackPtrs>
43void initialize(TemplateInstantiationCallbackPtrs &Callbacks,
44 const Sema &TheSema) {
45 for (auto &C : Callbacks) {
46 if (C)
47 C->initialize(TheSema);
48 }
49}
50
51template <class TemplateInstantiationCallbackPtrs>
52void finalize(TemplateInstantiationCallbackPtrs &Callbacks,
53 const Sema &TheSema) {
54 for (auto &C : Callbacks) {
55 if (C)
56 C->finalize(TheSema);
57 }
58}
59
60template <class TemplateInstantiationCallbackPtrs>
61void atTemplateBegin(TemplateInstantiationCallbackPtrs &Callbacks,
62 const Sema &TheSema,
63 const Sema::CodeSynthesisContext &Inst) {
64 for (auto &C : Callbacks) {
65 if (C)
66 C->atTemplateBegin(TheSema, Inst);
67 }
68}
69
70template <class TemplateInstantiationCallbackPtrs>
71void atTemplateEnd(TemplateInstantiationCallbackPtrs &Callbacks,
72 const Sema &TheSema,
73 const Sema::CodeSynthesisContext &Inst) {
74 for (auto &C : Callbacks) {
75 if (C)
76 C->atTemplateEnd(TheSema, Inst);
77 }
78}
79
80} // namespace clang
81
82#endif
Sema - This implements semantic analysis and AST building for C.
Definition: Sema.h:450
This is a base class for callbacks that will be notified at every template instantiation.
virtual void atTemplateEnd(const Sema &TheSema, const Sema::CodeSynthesisContext &Inst)=0
Called when instantiation of a template is just about to end.
virtual void finalize(const Sema &TheSema)=0
Called after AST-parsing is completed.
virtual void initialize(const Sema &TheSema)=0
Called before doing AST-parsing.
virtual ~TemplateInstantiationCallback()=default
virtual void atTemplateBegin(const Sema &TheSema, const Sema::CodeSynthesisContext &Inst)=0
Called when instantiation of a template just began.
The JSON file list parser is used to communicate input to InstallAPI.
void atTemplateEnd(TemplateInstantiationCallbackPtrs &Callbacks, const Sema &TheSema, const Sema::CodeSynthesisContext &Inst)
void atTemplateBegin(TemplateInstantiationCallbackPtrs &Callbacks, const Sema &TheSema, const Sema::CodeSynthesisContext &Inst)
void initialize(TemplateInstantiationCallbackPtrs &Callbacks, const Sema &TheSema)
void finalize(TemplateInstantiationCallbackPtrs &Callbacks, const Sema &TheSema)
A context in which code is being synthesized (where a source location alone is not sufficient to iden...
Definition: Sema.h:9719