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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.llvm.Conventions \
// RUN: -std=c++14 -verify %s
#include "Inputs/system-header-simulator-cxx.h"
//===----------------------------------------------------------------------===//
// Forward declarations for StringRef tests.
//===----------------------------------------------------------------------===//
using size_type = size_t;
namespace std {
template <class T>
struct numeric_limits { const static bool is_signed; };
} // end of namespace std
namespace llvm {
template <class T>
struct iterator_range;
template <class Func>
struct function_ref;
struct hash_code;
template <class T>
struct SmallVectorImpl;
struct APInt;
class StringRef {
public:
static const size_t npos = ~size_t(0);
using iterator = const char *;
using const_iterator = const char *;
using size_type = size_t;
/*implicit*/ StringRef() = default;
StringRef(std::nullptr_t) = delete;
/*implicit*/ StringRef(const char *Str);
/*implicit*/ constexpr StringRef(const char *data, size_t length);
/*implicit*/ StringRef(const std::string &Str);
static StringRef withNullAsEmpty(const char *data);
iterator begin() const;
iterator end() const;
const unsigned char *bytes_begin() const;
const unsigned char *bytes_end() const;
iterator_range<const unsigned char *> bytes() const;
const char *data() const;
bool empty() const;
size_t size() const;
char front() const;
char back() const;
template <typename Allocator>
StringRef copy(Allocator &A) const;
bool equals(StringRef RHS) const;
bool equals_lower(StringRef RHS) const;
int compare(StringRef RHS) const;
int compare_lower(StringRef RHS) const;
int compare_numeric(StringRef RHS) const;
unsigned edit_distance(StringRef Other, bool AllowReplacements = true,
unsigned MaxEditDistance = 0) const;
std::string str() const;
char operator[](size_t Index) const;
template <typename T>
typename std::enable_if<std::is_same<T, std::string>::value,
StringRef>::type &
operator=(T &&Str) = delete;
operator std::string() const;
bool startswith(StringRef Prefix) const;
bool startswith_lower(StringRef Prefix) const;
bool endswith(StringRef Suffix) const;
bool endswith_lower(StringRef Suffix) const;
size_t find(char C, size_t From = 0) const;
size_t find_lower(char C, size_t From = 0) const;
size_t find_if(function_ref<bool(char)> F, size_t From = 0) const;
size_t find_if_not(function_ref<bool(char)> F, size_t From = 0) const;
size_t find(StringRef Str, size_t From = 0) const;
size_t find_lower(StringRef Str, size_t From = 0) const;
size_t rfind(char C, size_t From = npos) const;
size_t rfind_lower(char C, size_t From = npos) const;
size_t rfind(StringRef Str) const;
size_t rfind_lower(StringRef Str) const;
size_t find_first_of(char C, size_t From = 0) const;
size_t find_first_of(StringRef Chars, size_t From = 0) const;
size_t find_first_not_of(char C, size_t From = 0) const;
size_t find_first_not_of(StringRef Chars, size_t From = 0) const;
size_t find_last_of(char C, size_t From = npos) const;
size_t find_last_of(StringRef Chars, size_t From = npos) const;
size_t find_last_not_of(char C, size_t From = npos) const;
size_t find_last_not_of(StringRef Chars, size_t From = npos) const;
bool contains(StringRef Other) const;
bool contains(char C) const;
bool contains_lower(StringRef Other) const;
bool contains_lower(char C) const;
size_t count(char C) const;
size_t count(StringRef Str) const;
template <typename T>
typename std::enable_if<std::numeric_limits<T>::is_signed, bool>::type
getAsInteger(unsigned Radix, T &Result) const;
template <typename T>
typename std::enable_if<!std::numeric_limits<T>::is_signed, bool>::type
getAsInteger(unsigned Radix, T &Result) const;
template <typename T>
typename std::enable_if<std::numeric_limits<T>::is_signed, bool>::type
consumeInteger(unsigned Radix, T &Result);
template <typename T>
typename std::enable_if<!std::numeric_limits<T>::is_signed, bool>::type
consumeInteger(unsigned Radix, T &Result);
bool getAsInteger(unsigned Radix, APInt &Result) const;
bool getAsDouble(double &Result, bool AllowInexact = true) const;
std::string lower() const;
std::string upper() const;
StringRef substr(size_t Start, size_t N = npos) const;
StringRef take_front(size_t N = 1) const;
StringRef take_back(size_t N = 1) const;
StringRef take_while(function_ref<bool(char)> F) const;
StringRef take_until(function_ref<bool(char)> F) const;
StringRef drop_front(size_t N = 1) const;
StringRef drop_back(size_t N = 1) const;
StringRef drop_while(function_ref<bool(char)> F) const;
StringRef drop_until(function_ref<bool(char)> F) const;
bool consume_front(StringRef Prefix);
bool consume_back(StringRef Suffix);
StringRef slice(size_t Start, size_t End) const;
std::pair<StringRef, StringRef> split(char Separator) const;
std::pair<StringRef, StringRef> split(StringRef Separator) const;
std::pair<StringRef, StringRef> rsplit(StringRef Separator) const;
void split(SmallVectorImpl<StringRef> &A,
StringRef Separator, int MaxSplit = -1,
bool KeepEmpty = true) const;
void split(SmallVectorImpl<StringRef> &A, char Separator, int MaxSplit = -1,
bool KeepEmpty = true) const;
std::pair<StringRef, StringRef> rsplit(char Separator) const;
StringRef ltrim(char Char) const;
StringRef ltrim(StringRef Chars = " \t\n\v\f\r") const;
StringRef rtrim(char Char) const;
StringRef rtrim(StringRef Chars = " \t\n\v\f\r") const;
StringRef trim(char Char) const;
StringRef trim(StringRef Chars = " \t\n\v\f\r") const;
};
inline bool operator==(StringRef LHS, StringRef RHS);
inline bool operator!=(StringRef LHS, StringRef RHS);
inline bool operator<(StringRef LHS, StringRef RHS);
inline bool operator<=(StringRef LHS, StringRef RHS);
inline bool operator>(StringRef LHS, StringRef RHS);
inline bool operator>=(StringRef LHS, StringRef RHS);
inline std::string &operator+=(std::string &buffer, StringRef string);
hash_code hash_value(StringRef S);
} // end of namespace llvm
//===----------------------------------------------------------------------===//
// Tests for StringRef.
//===----------------------------------------------------------------------===//
void temporarayStringToStringRefAssignmentTest() {
// TODO: Emit a warning.
llvm::StringRef Ref = std::string("Yimmy yummy test.");
}
void assigningStringToStringRefWithLongerLifetimeTest() {
llvm::StringRef Ref;
{
// TODO: Emit a warning.
std::string TmpStr("This is a fine string.");
Ref = TmpStr;
}
}
std::string getTemporaryString() {
return "One two three.";
}
void assigningTempStringFromFunctionToStringRefTest() {
// TODO: Emit a warning.
llvm::StringRef Ref = getTemporaryString();
}
//===----------------------------------------------------------------------===//
// Forward declaration for Clang AST nodes.
//===----------------------------------------------------------------------===//
namespace llvm {
template <class T, int Size>
struct SmallVector {};
} // end of namespace llvm
namespace clang {
struct Type;
struct Decl;
struct Stmt;
struct Attr;
} // end of namespace clang
//===----------------------------------------------------------------------===//
// Tests for Clang AST nodes.
//===----------------------------------------------------------------------===//
namespace clang {
struct Type {
std::string str; // expected-warning{{AST class 'Type' has a field 'str' that allocates heap memory (type std::string)}}
};
} // end of namespace clang
namespace clang {
struct Decl {
llvm::SmallVector<int, 5> Vec; // expected-warning{{AST class 'Decl' has a field 'Vec' that allocates heap memory (type llvm::SmallVector<int, 5>)}}
};
} // end of namespace clang
|
