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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
//===-- Twine.cpp - Fast Temporary String Concatenation -------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/Twine.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
std::string Twine::str() const {
// If we're storing only a std::string, just return it.
if (LHSKind == StdStringKind && RHSKind == EmptyKind)
return *LHS.stdString;
// Otherwise, flatten and copy the contents first.
SmallString<256> Vec;
return toStringRef(Vec).str();
}
void Twine::toVector(SmallVectorImpl<char> &Out) const {
raw_svector_ostream OS(Out);
print(OS);
}
StringRef Twine::toStringRef(SmallVectorImpl<char> &Out) const {
if (isSingleStringRef())
return getSingleStringRef();
toVector(Out);
return StringRef(Out.data(), Out.size());
}
StringRef Twine::toNullTerminatedStringRef(SmallVectorImpl<char> &Out) const {
if (isUnary()) {
switch (getLHSKind()) {
case CStringKind:
// Already null terminated, yay!
return StringRef(LHS.cString);
case StdStringKind: {
const std::string *str = LHS.stdString;
return StringRef(str->c_str(), str->size());
}
default:
break;
}
}
toVector(Out);
Out.push_back(0);
Out.pop_back();
return StringRef(Out.data(), Out.size());
}
void Twine::printOneChild(raw_ostream &OS, Child Ptr,
NodeKind Kind) const {
switch (Kind) {
case Twine::NullKind: break;
case Twine::EmptyKind: break;
case Twine::TwineKind:
Ptr.twine->print(OS);
break;
case Twine::CStringKind:
OS << Ptr.cString;
break;
case Twine::StdStringKind:
OS << *Ptr.stdString;
break;
case Twine::StringRefKind:
OS << *Ptr.stringRef;
break;
case Twine::CharKind:
OS << Ptr.character;
break;
case Twine::DecUIKind:
OS << Ptr.decUI;
break;
case Twine::DecIKind:
OS << Ptr.decI;
break;
case Twine::DecULKind:
OS << *Ptr.decUL;
break;
case Twine::DecLKind:
OS << *Ptr.decL;
break;
case Twine::DecULLKind:
OS << *Ptr.decULL;
break;
case Twine::DecLLKind:
OS << *Ptr.decLL;
break;
case Twine::UHexKind:
OS.write_hex(*Ptr.uHex);
break;
}
}
void Twine::printOneChildRepr(raw_ostream &OS, Child Ptr,
NodeKind Kind) const {
switch (Kind) {
case Twine::NullKind:
OS << "null"; break;
case Twine::EmptyKind:
OS << "empty"; break;
case Twine::TwineKind:
OS << "rope:";
Ptr.twine->printRepr(OS);
break;
case Twine::CStringKind:
OS << "cstring:\""
<< Ptr.cString << "\"";
break;
case Twine::StdStringKind:
OS << "std::string:\""
<< Ptr.stdString << "\"";
break;
case Twine::StringRefKind:
OS << "stringref:\""
<< Ptr.stringRef << "\"";
break;
case Twine::CharKind:
OS << "char:\"" << Ptr.character << "\"";
break;
case Twine::DecUIKind:
OS << "decUI:\"" << Ptr.decUI << "\"";
break;
case Twine::DecIKind:
OS << "decI:\"" << Ptr.decI << "\"";
break;
case Twine::DecULKind:
OS << "decUL:\"" << *Ptr.decUL << "\"";
break;
case Twine::DecLKind:
OS << "decL:\"" << *Ptr.decL << "\"";
break;
case Twine::DecULLKind:
OS << "decULL:\"" << *Ptr.decULL << "\"";
break;
case Twine::DecLLKind:
OS << "decLL:\"" << *Ptr.decLL << "\"";
break;
case Twine::UHexKind:
OS << "uhex:\"" << Ptr.uHex << "\"";
break;
}
}
void Twine::print(raw_ostream &OS) const {
printOneChild(OS, LHS, getLHSKind());
printOneChild(OS, RHS, getRHSKind());
}
void Twine::printRepr(raw_ostream &OS) const {
OS << "(Twine ";
printOneChildRepr(OS, LHS, getLHSKind());
OS << " ";
printOneChildRepr(OS, RHS, getRHSKind());
OS << ")";
}
void Twine::dump() const {
print(llvm::dbgs());
}
void Twine::dumpRepr() const {
printRepr(llvm::dbgs());
}
|
