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
|
// Copyright (c) 2011 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.
#include "ppapi/shared_impl/var.h"
#include <limits>
#include "base/logging.h"
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/shared_impl/tracker_base.h"
#include "ppapi/shared_impl/var_tracker.h"
namespace ppapi {
// Var -------------------------------------------------------------------------
Var::Var(PP_Module module) : pp_module_(module), var_id_(0) {
}
Var::~Var() {
}
// static
std::string Var::PPVarToLogString(PP_Var var) {
switch (var.type) {
case PP_VARTYPE_UNDEFINED:
return "[Undefined]";
case PP_VARTYPE_NULL:
return "[Null]";
case PP_VARTYPE_BOOL:
return var.value.as_bool ? "[True]" : "[False]";
case PP_VARTYPE_INT32:
return base::IntToString(var.value.as_int);
case PP_VARTYPE_DOUBLE:
return base::DoubleToString(var.value.as_double);
case PP_VARTYPE_STRING: {
StringVar* string(StringVar::FromPPVar(var));
if (!string)
return "[Invalid string]";
// Since this is for logging, escape NULLs, truncate length.
std::string result;
const size_t kTruncateAboveLength = 128;
if (string->value().size() > kTruncateAboveLength)
result = string->value().substr(0, kTruncateAboveLength) + "...";
else
result = string->value();
std::string null;
null.push_back(0);
ReplaceSubstringsAfterOffset(&result, 0, null, "\\0");
return result;
}
case PP_VARTYPE_OBJECT:
return "[Object]";
default:
return "[Invalid var]";
}
}
StringVar* Var::AsStringVar() {
return NULL;
}
NPObjectVar* Var::AsNPObjectVar() {
return NULL;
}
ProxyObjectVar* Var::AsProxyObjectVar() {
return NULL;
}
int32 Var::GetExistingVarID() const {
return var_id_;
}
int32 Var::GetOrCreateVarID() {
VarTracker* tracker = TrackerBase::Get()->GetVarTracker();
if (var_id_) {
if (!tracker->AddRefVar(var_id_))
return 0;
} else {
var_id_ = tracker->AddVar(this);
if (!var_id_)
return 0;
}
return var_id_;
}
void Var::AssignVarID(int32 id) {
DCHECK(!var_id_); // Must not have already been generated.
var_id_ = id;
}
// StringVar -------------------------------------------------------------------
StringVar::StringVar(PP_Module module, const std::string& str)
: Var(module),
value_(str) {
}
StringVar::StringVar(PP_Module module, const char* str, uint32 len)
: Var(module),
value_(str, len) {
}
StringVar::~StringVar() {
}
StringVar* StringVar::AsStringVar() {
return this;
}
PP_Var StringVar::GetPPVar() {
int32 id = GetOrCreateVarID();
if (!id)
return PP_MakeNull();
PP_Var result;
result.type = PP_VARTYPE_STRING;
result.value.as_id = id;
return result;
}
PP_VarType StringVar::GetType() const {
return PP_VARTYPE_STRING;
}
// static
PP_Var StringVar::StringToPPVar(PP_Module module, const std::string& var) {
return StringToPPVar(module, var.c_str(), var.size());
}
// static
PP_Var StringVar::StringToPPVar(PP_Module module,
const char* data, uint32 len) {
scoped_refptr<StringVar> str(new StringVar(module, data, len));
if (!str || !IsStringUTF8(str->value()))
return PP_MakeNull();
return str->GetPPVar();
}
// static
StringVar* StringVar::FromPPVar(PP_Var var) {
if (var.type != PP_VARTYPE_STRING)
return NULL;
scoped_refptr<Var> var_object(
TrackerBase::Get()->GetVarTracker()->GetVar(var));
if (!var_object)
return NULL;
return var_object->AsStringVar();
}
} // namespace ppapi
|
