1 // Copyright 2017 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/d8/d8-console.h"
6 #include "src/d8/d8.h"
7 #include "src/execution/isolate.h"
8
9 namespace v8 {
10
11 namespace {
WriteToFile(const char * prefix,FILE * file,Isolate * isolate,const debug::ConsoleCallArguments & args)12 void WriteToFile(const char* prefix, FILE* file, Isolate* isolate,
13 const debug::ConsoleCallArguments& args) {
14 if (prefix) fprintf(file, "%s: ", prefix);
15 for (int i = 0; i < args.Length(); i++) {
16 HandleScope handle_scope(isolate);
17 if (i > 0) fprintf(file, " ");
18
19 Local<Value> arg = args[i];
20 Local<String> str_obj;
21
22 if (arg->IsSymbol()) arg = Local<Symbol>::Cast(arg)->Description(isolate);
23 if (!arg->ToString(isolate->GetCurrentContext()).ToLocal(&str_obj)) return;
24
25 v8::String::Utf8Value str(isolate, str_obj);
26 int n = static_cast<int>(fwrite(*str, sizeof(**str), str.length(), file));
27 if (n != str.length()) {
28 printf("Error in fwrite\n");
29 base::OS::ExitProcess(1);
30 }
31 }
32 fprintf(file, "\n");
33 }
34 } // anonymous namespace
35
D8Console(Isolate * isolate)36 D8Console::D8Console(Isolate* isolate) : isolate_(isolate) {
37 default_timer_ = base::TimeTicks::Now();
38 }
39
Assert(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)40 void D8Console::Assert(const debug::ConsoleCallArguments& args,
41 const v8::debug::ConsoleContext&) {
42 // If no arguments given, the "first" argument is undefined which is
43 // false-ish.
44 if (args.Length() > 0 && args[0]->BooleanValue(isolate_)) return;
45 WriteToFile("console.assert", stdout, isolate_, args);
46 isolate_->ThrowError("console.assert failed");
47 }
48
Log(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)49 void D8Console::Log(const debug::ConsoleCallArguments& args,
50 const v8::debug::ConsoleContext&) {
51 WriteToFile(nullptr, stdout, isolate_, args);
52 }
53
Error(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)54 void D8Console::Error(const debug::ConsoleCallArguments& args,
55 const v8::debug::ConsoleContext&) {
56 WriteToFile("console.error", stderr, isolate_, args);
57 }
58
Warn(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)59 void D8Console::Warn(const debug::ConsoleCallArguments& args,
60 const v8::debug::ConsoleContext&) {
61 WriteToFile("console.warn", stdout, isolate_, args);
62 }
63
Info(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)64 void D8Console::Info(const debug::ConsoleCallArguments& args,
65 const v8::debug::ConsoleContext&) {
66 WriteToFile("console.info", stdout, isolate_, args);
67 }
68
Debug(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)69 void D8Console::Debug(const debug::ConsoleCallArguments& args,
70 const v8::debug::ConsoleContext&) {
71 WriteToFile("console.debug", stdout, isolate_, args);
72 }
73
Time(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)74 void D8Console::Time(const debug::ConsoleCallArguments& args,
75 const v8::debug::ConsoleContext&) {
76 if (internal::FLAG_correctness_fuzzer_suppressions) return;
77 if (args.Length() == 0) {
78 default_timer_ = base::TimeTicks::Now();
79 } else {
80 Local<Value> arg = args[0];
81 Local<String> label;
82 v8::TryCatch try_catch(isolate_);
83 if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) return;
84 v8::String::Utf8Value utf8(isolate_, label);
85 std::string string(*utf8);
86 auto find = timers_.find(string);
87 if (find != timers_.end()) {
88 find->second = base::TimeTicks::Now();
89 } else {
90 timers_.insert(std::pair<std::string, base::TimeTicks>(
91 string, base::TimeTicks::Now()));
92 }
93 }
94 }
95
TimeEnd(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)96 void D8Console::TimeEnd(const debug::ConsoleCallArguments& args,
97 const v8::debug::ConsoleContext&) {
98 if (internal::FLAG_correctness_fuzzer_suppressions) return;
99 base::TimeDelta delta;
100 if (args.Length() == 0) {
101 delta = base::TimeTicks::Now() - default_timer_;
102 printf("console.timeEnd: default, %f\n", delta.InMillisecondsF());
103 } else {
104 base::TimeTicks now = base::TimeTicks::Now();
105 Local<Value> arg = args[0];
106 Local<String> label;
107 v8::TryCatch try_catch(isolate_);
108 if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) return;
109 v8::String::Utf8Value utf8(isolate_, label);
110 std::string string(*utf8);
111 auto find = timers_.find(string);
112 if (find != timers_.end()) {
113 delta = now - find->second;
114 timers_.erase(find);
115 }
116 printf("console.timeEnd: %s, %f\n", *utf8, delta.InMillisecondsF());
117 }
118 }
119
TimeStamp(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)120 void D8Console::TimeStamp(const debug::ConsoleCallArguments& args,
121 const v8::debug::ConsoleContext&) {
122 if (internal::FLAG_correctness_fuzzer_suppressions) return;
123 base::TimeDelta delta = base::TimeTicks::Now() - default_timer_;
124 if (args.Length() == 0) {
125 printf("console.timeStamp: default, %f\n", delta.InMillisecondsF());
126 } else {
127 Local<Value> arg = args[0];
128 Local<String> label;
129 v8::TryCatch try_catch(isolate_);
130 if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) return;
131 v8::String::Utf8Value utf8(isolate_, label);
132 std::string string(*utf8);
133 printf("console.timeStamp: %s, %f\n", *utf8, delta.InMillisecondsF());
134 }
135 }
136
Trace(const debug::ConsoleCallArguments & args,const v8::debug::ConsoleContext &)137 void D8Console::Trace(const debug::ConsoleCallArguments& args,
138 const v8::debug::ConsoleContext&) {
139 if (internal::FLAG_correctness_fuzzer_suppressions) return;
140 i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate_);
141 i_isolate->PrintStack(stderr, i::Isolate::kPrintStackConcise);
142 }
143
144 } // namespace v8
145