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
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SCOPE_H_
#define SCOPE_H_
#include <android-base/macros.h>
#include <android-base/logging.h>
#include <string>
#include <vector>
#include <map>
namespace android {
/* This class is used to represent declarations or notes
* which are otherwise not included in a HIDL HAL
*/
template<typename T>
struct Scope {
Scope() {}
~Scope() {}
void enter(std::string name, T item);
void leave(std::string name);
T lookup(std::string name) const;
private:
std::map<std::string, T> mScopeContents;
DISALLOW_COPY_AND_ASSIGN(Scope);
};
template<typename T>
void Scope<T>::enter(std::string name, T item) {
auto it = mScopeContents.find(name);
if (it != mScopeContents.end()) {
LOG(WARNING) << "Redeclaring variable in scope: " << name;
return;
}
mScopeContents[name] = item;
}
template<typename T>
void Scope<T>::leave(std::string name) {
auto it = mScopeContents.find(name);
if (it == mScopeContents.end()) {
LOG(WARNING) << "Tried to undefined already undefined value in scope: " << name;
return;
}
mScopeContents.erase(it);
}
template<typename T>
T Scope<T>::lookup(std::string name) const {
auto it = mScopeContents.find(name);
if (it == mScopeContents.end()) {
return NULL;
}
return (*it).second;
}
} // namespace android
#endif // SCOPE_H_
|
