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
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#ifndef cmDefinitions_h
#define cmDefinitions_h
#include <cmConfigure.h> // IWYU pragma: keep
#include <string>
#include <vector>
#include "cmLinkedTree.h"
#include "cm_unordered_map.hxx"
/** \class cmDefinitions
* \brief Store a scope of variable definitions for CMake language.
*
* This stores the state of variable definitions (set or unset) for
* one scope. Sets are always local. Gets search parent scopes
* transitively and save results locally.
*/
class cmDefinitions
{
typedef cmLinkedTree<cmDefinitions>::iterator StackIter;
public:
static const char* Get(const std::string& key, StackIter begin,
StackIter end);
static void Raise(const std::string& key, StackIter begin, StackIter end);
static bool HasKey(const std::string& key, StackIter begin, StackIter end);
/** Set (or unset if null) a value associated with a key. */
void Set(const std::string& key, const char* value);
std::vector<std::string> UnusedKeys() const;
static std::vector<std::string> ClosureKeys(StackIter begin, StackIter end);
static cmDefinitions MakeClosure(StackIter begin, StackIter end);
private:
// String with existence boolean.
struct Def : public std::string
{
private:
typedef std::string std_string;
public:
Def()
: std_string()
, Exists(false)
, Used(false)
{
}
Def(const char* v)
: std_string(v ? v : "")
, Exists(v ? true : false)
, Used(false)
{
}
Def(const std_string& v)
: std_string(v)
, Exists(true)
, Used(false)
{
}
Def(Def const& d)
: std_string(d)
, Exists(d.Exists)
, Used(d.Used)
{
}
bool Exists;
bool Used;
};
static Def NoDef;
typedef CM_UNORDERED_MAP<std::string, Def> MapType;
MapType Map;
static Def const& GetInternal(const std::string& key, StackIter begin,
StackIter end, bool raise);
};
#endif
|
