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#include <cstdarg> |
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#include <set> |
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#include "env-inl.h" |
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#include "node_process.h" |
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#include "util.h" |
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namespace node { |
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using v8::Context; |
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using v8::Function; |
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using v8::HandleScope; |
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using v8::Isolate; |
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using v8::Just; |
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using v8::Local; |
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using v8::Maybe; |
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using v8::MaybeLocal; |
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using v8::Nothing; |
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using v8::Object; |
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using v8::String; |
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using v8::Value; |
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MaybeLocal<Value> ProcessEmit(Environment* env, |
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const char* event, |
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Local<Value> message) { |
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// Send message to enable debug in cluster workers |
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Isolate* isolate = env->isolate(); |
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Local<String> event_string; |
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✗✓ |
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if (!String::NewFromOneByte(isolate, reinterpret_cast<const uint8_t*>(event)) |
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.ToLocal(&event_string)) return MaybeLocal<Value>(); |
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Local<Object> process = env->process_object(); |
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Local<Value> argv[] = {event_string, message}; |
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return MakeCallback(isolate, process, "emit", arraysize(argv), argv, {0, 0}); |
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} |
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Maybe<bool> ProcessEmitWarningGeneric(Environment* env, |
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const char* warning, |
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const char* type, |
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const char* code) { |
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✗✓ |
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if (!env->can_call_into_js()) return Just(false); |
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HandleScope handle_scope(env->isolate()); |
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Context::Scope context_scope(env->context()); |
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Local<Object> process = env->process_object(); |
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Local<Value> emit_warning; |
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✓✓ |
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if (!process->Get(env->context(), env->emit_warning_string()) |
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.ToLocal(&emit_warning)) { |
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return Nothing<bool>(); |
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} |
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✗✓ |
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if (!emit_warning->IsFunction()) return Just(false); |
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int argc = 0; |
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✓✓ |
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Local<Value> args[3]; // warning, type, code |
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// The caller has to be able to handle a failure anyway, so we might as well |
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// do proper error checking for string creation. |
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✗✓ |
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if (!String::NewFromUtf8(env->isolate(), warning).ToLocal(&args[argc++])) |
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return Nothing<bool>(); |
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✓✓ |
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if (type != nullptr) { |
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✗✓ |
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if (!String::NewFromOneByte(env->isolate(), |
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reinterpret_cast<const uint8_t*>(type)) |
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.ToLocal(&args[argc++])) { |
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return Nothing<bool>(); |
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} |
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✓✓✗✓
✗✓ |
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if (code != nullptr && |
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!String::NewFromOneByte(env->isolate(), |
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reinterpret_cast<const uint8_t*>(code)) |
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.ToLocal(&args[argc++])) { |
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return Nothing<bool>(); |
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} |
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} |
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// MakeCallback() unneeded because emitWarning is internal code, it calls |
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// process.emit('warning', ...), but does so on the nextTick. |
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✓✓ |
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if (emit_warning.As<Function>() |
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->Call(env->context(), process, argc, args) |
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.IsEmpty()) { |
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return Nothing<bool>(); |
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} |
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return Just(true); |
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} |
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// Call process.emitWarning(str), fmt is a snprintf() format string |
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Maybe<bool> ProcessEmitWarning(Environment* env, const char* fmt, ...) { |
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char warning[1024]; |
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va_list ap; |
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va_start(ap, fmt); |
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vsnprintf(warning, sizeof(warning), fmt, ap); |
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va_end(ap); |
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return ProcessEmitWarningGeneric(env, warning); |
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} |
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std::set<std::string> experimental_warnings; |
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Maybe<bool> ProcessEmitExperimentalWarning(Environment* env, |
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const char* warning) { |
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if (experimental_warnings.find(warning) != experimental_warnings.end()) |
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return Nothing<bool>(); |
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experimental_warnings.insert(warning); |
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std::string message(warning); |
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message.append( |
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" is an experimental feature. This feature could change at any time"); |
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return ProcessEmitWarningGeneric(env, message.c_str(), "ExperimentalWarning"); |
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} |
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Maybe<bool> ProcessEmitDeprecationWarning(Environment* env, |
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const char* warning, |
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const char* deprecation_code) { |
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return ProcessEmitWarningGeneric( |
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env, warning, "DeprecationWarning", deprecation_code); |
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} |
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✓✗✓✗
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} // namespace node |