CIndexUSRs.cpp
4.52 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
//===- CIndexUSRs.cpp - Clang-C Source Indexing Library -------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the generation and use of USRs from CXEntities.
//
//===----------------------------------------------------------------------===//
#include "CIndexer.h"
#include "CXCursor.h"
#include "CXString.h"
#include "CXTranslationUnit.h"
#include "clang/Frontend/ASTUnit.h"
#include "clang/Index/USRGeneration.h"
#include "clang/Lex/PreprocessingRecord.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang;
using namespace clang::index;
//===----------------------------------------------------------------------===//
// API hooks.
//===----------------------------------------------------------------------===//
static inline StringRef extractUSRSuffix(StringRef s) {
return s.startswith("c:") ? s.substr(2) : "";
}
bool cxcursor::getDeclCursorUSR(const Decl *D, SmallVectorImpl<char> &Buf) {
return generateUSRForDecl(D, Buf);
}
CXString clang_getCursorUSR(CXCursor C) {
const CXCursorKind &K = clang_getCursorKind(C);
if (clang_isDeclaration(K)) {
const Decl *D = cxcursor::getCursorDecl(C);
if (!D)
return cxstring::createEmpty();
CXTranslationUnit TU = cxcursor::getCursorTU(C);
if (!TU)
return cxstring::createEmpty();
cxstring::CXStringBuf *buf = cxstring::getCXStringBuf(TU);
if (!buf)
return cxstring::createEmpty();
bool Ignore = cxcursor::getDeclCursorUSR(D, buf->Data);
if (Ignore) {
buf->dispose();
return cxstring::createEmpty();
}
// Return the C-string, but don't make a copy since it is already in
// the string buffer.
buf->Data.push_back('\0');
return createCXString(buf);
}
if (K == CXCursor_MacroDefinition) {
CXTranslationUnit TU = cxcursor::getCursorTU(C);
if (!TU)
return cxstring::createEmpty();
cxstring::CXStringBuf *buf = cxstring::getCXStringBuf(TU);
if (!buf)
return cxstring::createEmpty();
bool Ignore = generateUSRForMacro(cxcursor::getCursorMacroDefinition(C),
cxtu::getASTUnit(TU)->getSourceManager(),
buf->Data);
if (Ignore) {
buf->dispose();
return cxstring::createEmpty();
}
// Return the C-string, but don't make a copy since it is already in
// the string buffer.
buf->Data.push_back('\0');
return createCXString(buf);
}
return cxstring::createEmpty();
}
CXString clang_constructUSR_ObjCIvar(const char *name, CXString classUSR) {
SmallString<128> Buf(getUSRSpacePrefix());
llvm::raw_svector_ostream OS(Buf);
OS << extractUSRSuffix(clang_getCString(classUSR));
generateUSRForObjCIvar(name, OS);
return cxstring::createDup(OS.str());
}
CXString clang_constructUSR_ObjCMethod(const char *name,
unsigned isInstanceMethod,
CXString classUSR) {
SmallString<128> Buf(getUSRSpacePrefix());
llvm::raw_svector_ostream OS(Buf);
OS << extractUSRSuffix(clang_getCString(classUSR));
generateUSRForObjCMethod(name, isInstanceMethod, OS);
return cxstring::createDup(OS.str());
}
CXString clang_constructUSR_ObjCClass(const char *name) {
SmallString<128> Buf(getUSRSpacePrefix());
llvm::raw_svector_ostream OS(Buf);
generateUSRForObjCClass(name, OS);
return cxstring::createDup(OS.str());
}
CXString clang_constructUSR_ObjCProtocol(const char *name) {
SmallString<128> Buf(getUSRSpacePrefix());
llvm::raw_svector_ostream OS(Buf);
generateUSRForObjCProtocol(name, OS);
return cxstring::createDup(OS.str());
}
CXString clang_constructUSR_ObjCCategory(const char *class_name,
const char *category_name) {
SmallString<128> Buf(getUSRSpacePrefix());
llvm::raw_svector_ostream OS(Buf);
generateUSRForObjCCategory(class_name, category_name, OS);
return cxstring::createDup(OS.str());
}
CXString clang_constructUSR_ObjCProperty(const char *property,
CXString classUSR) {
SmallString<128> Buf(getUSRSpacePrefix());
llvm::raw_svector_ostream OS(Buf);
OS << extractUSRSuffix(clang_getCString(classUSR));
generateUSRForObjCProperty(property, /*isClassProp=*/false, OS);
return cxstring::createDup(OS.str());
}