clang 10.0.0git

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_TEMPLATE_INST_CALLBACK_H
15 #define LLVM_CLANG_TEMPLATE_INST_CALLBACK_H
16
17 #include "clang/Sema/Sema.h"
18
19 namespace clang {
20
21 /// This is a base class for callbacks that will be notified at every
22 /// template instantiation.
23 class TemplateInstantiationCallback {
24 public:
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
42 template <class TemplateInstantiationCallbackPtrs>
43 void initialize(TemplateInstantiationCallbackPtrs &Callbacks,
44 const Sema &TheSema) {
45 for (auto &C : Callbacks) {
46 if (C)
47 C->initialize(TheSema);
48 }
49 }
50
51 template <class TemplateInstantiationCallbackPtrs>
52 void finalize(TemplateInstantiationCallbackPtrs &Callbacks,
53 const Sema &TheSema) {
54 for (auto &C : Callbacks) {
55 if (C)
56 C->finalize(TheSema);
57 }
58 }
59
60 template <class TemplateInstantiationCallbackPtrs>
61 void 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
70 template <class TemplateInstantiationCallbackPtrs>
71 void 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.h
clang::Sema::CodeSynthesisContext
A context in which code is being synthesized (where a source location alone is not sufficient to iden...
Definition: Sema.h:7987
clang::TemplateInstantiationCallback
This is a base class for callbacks that will be notified at every template instantiation.
Definition: TemplateInstCallback.h:23
clang::TemplateInstantiationCallback::initialize
virtual void initialize(const Sema &TheSema)=0
Called before doing AST-parsing.
clang::Sema
Sema - This implements semantic analysis and AST building for C.
Definition: Sema.h:336
clang::TemplateInstantiationCallback::finalize
virtual void finalize(const Sema &TheSema)=0
Called after AST-parsing is completed.
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
clang::TemplateInstantiationCallback::~TemplateInstantiationCallback
virtual ~TemplateInstantiationCallback()=default
clang::TemplateInstantiationCallback::atTemplateBegin
virtual void atTemplateBegin(const Sema &TheSema, const Sema::CodeSynthesisContext &Inst)=0
Called when instantiation of a template just began.
clang::AttrSyntax::C
clang::TemplateInstantiationCallback::atTemplateEnd
virtual void atTemplateEnd(const Sema &TheSema, const Sema::CodeSynthesisContext &Inst)=0
Called when instantiation of a template is just about to end.