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
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef TOOLS_JSON_SCHEMA_COMPILER_UTIL_H__
#define TOOLS_JSON_SCHEMA_COMPILER_UTIL_H__
#include <string>
#include <vector>
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
namespace json_schema_compiler {
namespace util {
// Creates a new item at |out| from |from|[|index|]. These are used by template
// specializations of |Get(Optional)ArrayFromList|.
bool GetItemFromList(const base::ListValue& from, int index, int* out);
bool GetItemFromList(const base::ListValue& from, int index, bool* out);
bool GetItemFromList(const base::ListValue& from, int index, double* out);
bool GetItemFromList(const base::ListValue& from, int index, std::string* out);
bool GetItemFromList(const base::ListValue& from,
int index,
linked_ptr<base::Value>* out);
bool GetItemFromList(const base::ListValue& from,
int index,
linked_ptr<base::DictionaryValue>* out);
// This template is used for types generated by tools/json_schema_compiler.
template<class T>
bool GetItemFromList(const base::ListValue& from,
int index,
linked_ptr<T>* out) {
const base::DictionaryValue* dict;
if (!from.GetDictionary(index, &dict))
return false;
scoped_ptr<T> obj(new T());
if (!T::Populate(*dict, obj.get()))
return false;
*out = linked_ptr<T>(obj.release());
return true;
}
// Populates |out| with |list|. Returns false if there is no list at the
// specified key or if the list has anything other than |T|.
template <class T>
bool PopulateArrayFromList(
const base::ListValue& list, std::vector<T>* out) {
out->clear();
T value;
for (size_t i = 0; i < list.GetSize(); ++i) {
if (!GetItemFromList(list, i, &value))
return false;
out->push_back(value);
}
return true;
}
// Populates |out| with |from|.|name|. Returns false if there is no list at
// the specified key or if the list has anything other than |T|.
template <class T>
bool PopulateArrayFromDictionary(
const base::DictionaryValue& from,
const std::string& name,
std::vector<T>* out) {
const base::ListValue* list = NULL;
if (!from.GetListWithoutPathExpansion(name, &list))
return false;
return PopulateArrayFromList(*list, out);
}
// Creates a new vector containing |list| at |out|. Returns
// true on success or if there is nothing at the specified key. Returns false
// if anything other than a list of |T| is at the specified key.
template <class T>
bool PopulateOptionalArrayFromList(
const base::ListValue& list,
scoped_ptr<std::vector<T> >* out) {
out->reset(new std::vector<T>());
T value;
for (size_t i = 0; i < list.GetSize(); ++i) {
if (!GetItemFromList(list, i, &value)) {
out->reset();
return false;
}
(*out)->push_back(value);
}
return true;
}
// Creates a new vector containing |from|.|name| at |out|. Returns
// true on success or if there is nothing at the specified key. Returns false
// if anything other than a list of |T| is at the specified key.
template <class T>
bool PopulateOptionalArrayFromDictionary(
const base::DictionaryValue& from,
const std::string& name,
scoped_ptr<std::vector<T> >* out) {
const base::ListValue* list = NULL;
{
const base::Value* maybe_list = NULL;
// Since |name| is optional, its absence is acceptable. However, anything
// other than a ListValue is not.
if (!from.GetWithoutPathExpansion(name, &maybe_list))
return true;
if (!maybe_list->IsType(base::Value::TYPE_LIST))
return false;
list = static_cast<const base::ListValue*>(maybe_list);
}
return PopulateOptionalArrayFromList(*list, out);
}
// Appends a Value newly created from |from| to |out|. These used by template
// specializations of |Set(Optional)ArrayToList|.
void AddItemToList(const int from, base::ListValue* out);
void AddItemToList(const bool from, base::ListValue* out);
void AddItemToList(const double from, base::ListValue* out);
void AddItemToList(const std::string& from, base::ListValue* out);
void AddItemToList(const linked_ptr<base::Value>& from,
base::ListValue* out);
void AddItemToList(const linked_ptr<base::DictionaryValue>& from,
base::ListValue* out);
// This template is used for types generated by tools/json_schema_compiler.
template<class T>
void AddItemToList(const linked_ptr<T>& from, base::ListValue* out) {
out->Append(from->ToValue().release());
}
// Set |out| to the the contents of |from|. Requires GetItemFromList to be
// implemented for |T|.
template <class T>
void PopulateListFromArray(
const std::vector<T>& from,
base::ListValue* out) {
out->Clear();
for (typename std::vector<T>::const_iterator it = from.begin();
it != from.end(); ++it) {
AddItemToList(*it, out);
}
}
// Set |out| to the the contents of |from| if |from| is non-NULL. Requires
// GetItemFromList to be implemented for |T|.
template <class T>
void PopulateListFromOptionalArray(
const scoped_ptr<std::vector<T> >& from,
base::ListValue* out) {
if (from.get())
PopulateListFromArray(*from, out);
}
template <class T>
scoped_ptr<base::Value> CreateValueFromArray(const std::vector<T>& from) {
base::ListValue* list = new base::ListValue();
PopulateListFromArray(from, list);
return scoped_ptr<base::Value>(list);
}
template <class T>
scoped_ptr<base::Value> CreateValueFromOptionalArray(
const scoped_ptr<std::vector<T> >& from) {
if (from.get())
return CreateValueFromArray(*from);
return scoped_ptr<base::Value>();
}
std::string ValueTypeToString(base::Value::Type type);
} // namespace util
} // namespace json_schema_compiler
#endif // TOOLS_JSON_SCHEMA_COMPILER_UTIL_H__
|
