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
|
// Copyright 2017 the V8 project 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 "src/d8/d8-console.h"
#include "src/d8/d8.h"
#include "src/execution/isolate.h"
namespace v8 {
namespace {
void WriteToFile(const char* prefix, FILE* file, Isolate* isolate,
const debug::ConsoleCallArguments& args) {
if (prefix) fprintf(file, "%s: ", prefix);
for (int i = 0; i < args.Length(); i++) {
HandleScope handle_scope(isolate);
if (i > 0) fprintf(file, " ");
Local<Value> arg = args[i];
Local<String> str_obj;
if (arg->IsSymbol()) arg = Local<Symbol>::Cast(arg)->Name();
if (!arg->ToString(isolate->GetCurrentContext()).ToLocal(&str_obj)) return;
v8::String::Utf8Value str(isolate, str_obj);
int n = static_cast<int>(fwrite(*str, sizeof(**str), str.length(), file));
if (n != str.length()) {
printf("Error in fwrite\n");
base::OS::ExitProcess(1);
}
}
fprintf(file, "\n");
}
} // anonymous namespace
D8Console::D8Console(Isolate* isolate) : isolate_(isolate) {
default_timer_ = base::TimeTicks::HighResolutionNow();
}
void D8Console::Assert(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
// If no arguments given, the "first" argument is undefined which is
// false-ish.
if (args.Length() > 0 && args[0]->BooleanValue(isolate_)) return;
WriteToFile("console.assert", stdout, isolate_, args);
isolate_->ThrowException(v8::Exception::Error(
v8::String::NewFromUtf8(isolate_, "console.assert failed",
v8::NewStringType::kNormal)
.ToLocalChecked()));
}
void D8Console::Log(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
WriteToFile(nullptr, stdout, isolate_, args);
}
void D8Console::Error(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
WriteToFile("console.error", stderr, isolate_, args);
}
void D8Console::Warn(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
WriteToFile("console.warn", stdout, isolate_, args);
}
void D8Console::Info(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
WriteToFile("console.info", stdout, isolate_, args);
}
void D8Console::Debug(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
WriteToFile("console.debug", stdout, isolate_, args);
}
void D8Console::Time(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
if (args.Length() == 0) {
default_timer_ = base::TimeTicks::HighResolutionNow();
} else {
Local<Value> arg = args[0];
Local<String> label;
v8::TryCatch try_catch(isolate_);
if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) return;
v8::String::Utf8Value utf8(isolate_, label);
std::string string(*utf8);
auto find = timers_.find(string);
if (find != timers_.end()) {
find->second = base::TimeTicks::HighResolutionNow();
} else {
timers_.insert(std::pair<std::string, base::TimeTicks>(
string, base::TimeTicks::HighResolutionNow()));
}
}
}
void D8Console::TimeEnd(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
base::TimeDelta delta;
if (args.Length() == 0) {
delta = base::TimeTicks::HighResolutionNow() - default_timer_;
printf("console.timeEnd: default, %f\n", delta.InMillisecondsF());
} else {
base::TimeTicks now = base::TimeTicks::HighResolutionNow();
Local<Value> arg = args[0];
Local<String> label;
v8::TryCatch try_catch(isolate_);
if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) return;
v8::String::Utf8Value utf8(isolate_, label);
std::string string(*utf8);
auto find = timers_.find(string);
if (find != timers_.end()) {
delta = now - find->second;
}
printf("console.timeEnd: %s, %f\n", *utf8, delta.InMillisecondsF());
}
}
void D8Console::TimeStamp(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
base::TimeDelta delta = base::TimeTicks::HighResolutionNow() - default_timer_;
if (args.Length() == 0) {
printf("console.timeStamp: default, %f\n", delta.InMillisecondsF());
} else {
Local<Value> arg = args[0];
Local<String> label;
v8::TryCatch try_catch(isolate_);
if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) return;
v8::String::Utf8Value utf8(isolate_, label);
std::string string(*utf8);
printf("console.timeStamp: %s, %f\n", *utf8, delta.InMillisecondsF());
}
}
void D8Console::Trace(const debug::ConsoleCallArguments& args,
const v8::debug::ConsoleContext&) {
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate_);
i_isolate->PrintStack(stderr, i::Isolate::kPrintStackConcise);
}
} // namespace v8
|
