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9dcc9b6a6b
This adds a flag to define the default behavior for unhandled rejections. Three modes exist: `none`, `warn` and `strict`. The first is going to silence all unhandled rejection warnings. The second behaves identical to the current default with the excetion that no deprecation warning will be printed and the last is going to throw an error for each unhandled rejection, just as regular exceptions do. It is possible to intercept those with the `uncaughtException` hook as with all other exceptions as well. This PR has no influence on the existing `unhandledRejection` hook. If that is used, it will continue to function as before. PR-URL: https://github.com/nodejs/node/pull/26599 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Matheus Marchini <mat@mmarchini.me> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com> Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
204 lines
9.5 KiB
C++
204 lines
9.5 KiB
C++
#ifndef SRC_NODE_ERRORS_H_
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#define SRC_NODE_ERRORS_H_
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#include "node.h"
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#include "util-inl.h"
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#include "env-inl.h"
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#include "v8.h"
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// Use ostringstream to print exact-width integer types
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// because the format specifiers are not available on AIX.
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#include <sstream>
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namespace node {
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using v8::Local;
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using v8::Message;
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using v8::Value;
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enum ErrorHandlingMode { CONTEXTIFY_ERROR, FATAL_ERROR, MODULE_ERROR };
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void AppendExceptionLine(Environment* env,
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Local<Value> er,
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Local<Message> message,
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enum ErrorHandlingMode mode);
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[[noreturn]] void FatalError(const char* location, const char* message);
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void OnFatalError(const char* location, const char* message);
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void PrintErrorString(const char* format, ...);
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void ReportException(Environment* env, const v8::TryCatch& try_catch);
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void ReportException(Environment* env,
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Local<Value> er,
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Local<Message> message);
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void FatalException(v8::Isolate* isolate,
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Local<Value> error,
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Local<Message> message);
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void FatalException(v8::Isolate* isolate,
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Local<Value> error,
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Local<Message> message,
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bool from_promise);
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// Helpers to construct errors similar to the ones provided by
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// lib/internal/errors.js.
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// Example: with `V(ERR_INVALID_ARG_TYPE, TypeError)`, there will be
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// `node::ERR_INVALID_ARG_TYPE(isolate, "message")` returning
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// a `Local<Value>` containing the TypeError with proper code and message
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#define ERRORS_WITH_CODE(V) \
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V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE, Error) \
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V(ERR_BUFFER_OUT_OF_BOUNDS, RangeError) \
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V(ERR_BUFFER_TOO_LARGE, Error) \
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V(ERR_CANNOT_TRANSFER_OBJECT, TypeError) \
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V(ERR_CONSTRUCT_CALL_REQUIRED, Error) \
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V(ERR_INVALID_ARG_VALUE, TypeError) \
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V(ERR_INVALID_ARG_TYPE, TypeError) \
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V(ERR_INVALID_MODULE_SPECIFIER, TypeError) \
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V(ERR_INVALID_PACKAGE_CONFIG, SyntaxError) \
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V(ERR_INVALID_TRANSFER_OBJECT, TypeError) \
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V(ERR_MEMORY_ALLOCATION_FAILED, Error) \
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V(ERR_MISSING_ARGS, TypeError) \
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V(ERR_MISSING_MESSAGE_PORT_IN_TRANSFER_LIST, TypeError) \
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V(ERR_MISSING_PASSPHRASE, TypeError) \
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V(ERR_MISSING_PLATFORM_FOR_WORKER, Error) \
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V(ERR_MODULE_NOT_FOUND, Error) \
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V(ERR_OUT_OF_RANGE, RangeError) \
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V(ERR_SCRIPT_EXECUTION_INTERRUPTED, Error) \
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V(ERR_SCRIPT_EXECUTION_TIMEOUT, Error) \
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V(ERR_STRING_TOO_LONG, Error) \
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V(ERR_TLS_INVALID_PROTOCOL_METHOD, TypeError) \
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V(ERR_TRANSFERRING_EXTERNALIZED_SHAREDARRAYBUFFER, TypeError) \
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#define V(code, type) \
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inline v8::Local<v8::Value> code(v8::Isolate* isolate, \
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const char* message) { \
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v8::Local<v8::String> js_code = OneByteString(isolate, #code); \
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v8::Local<v8::String> js_msg = OneByteString(isolate, message); \
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v8::Local<v8::Object> e = \
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v8::Exception::type(js_msg)->ToObject( \
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isolate->GetCurrentContext()).ToLocalChecked(); \
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e->Set(isolate->GetCurrentContext(), OneByteString(isolate, "code"), \
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js_code).Check(); \
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return e; \
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} \
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inline void THROW_ ## code(v8::Isolate* isolate, const char* message) { \
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isolate->ThrowException(code(isolate, message)); \
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} \
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inline void THROW_ ## code(Environment* env, const char* message) { \
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THROW_ ## code(env->isolate(), message); \
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}
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ERRORS_WITH_CODE(V)
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#undef V
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// Errors with predefined static messages
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#define PREDEFINED_ERROR_MESSAGES(V) \
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V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE, \
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"Buffer is not available for the current Context") \
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V(ERR_CANNOT_TRANSFER_OBJECT, "Cannot transfer object of unsupported type")\
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V(ERR_CONSTRUCT_CALL_REQUIRED, "Cannot call constructor without `new`") \
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V(ERR_INVALID_TRANSFER_OBJECT, "Found invalid object in transferList") \
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V(ERR_MEMORY_ALLOCATION_FAILED, "Failed to allocate memory") \
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V(ERR_MISSING_MESSAGE_PORT_IN_TRANSFER_LIST, \
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"MessagePort was found in message but not listed in transferList") \
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V(ERR_MISSING_PLATFORM_FOR_WORKER, \
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"The V8 platform used by this instance of Node does not support " \
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"creating Workers") \
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V(ERR_SCRIPT_EXECUTION_INTERRUPTED, \
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"Script execution was interrupted by `SIGINT`") \
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V(ERR_TRANSFERRING_EXTERNALIZED_SHAREDARRAYBUFFER, \
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"Cannot serialize externalized SharedArrayBuffer") \
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#define V(code, message) \
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inline v8::Local<v8::Value> code(v8::Isolate* isolate) { \
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return code(isolate, message); \
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} \
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inline void THROW_ ## code(v8::Isolate* isolate) { \
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isolate->ThrowException(code(isolate, message)); \
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} \
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inline void THROW_ ## code(Environment* env) { \
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THROW_ ## code(env->isolate()); \
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}
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PREDEFINED_ERROR_MESSAGES(V)
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#undef V
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// Errors with predefined non-static messages
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inline void THROW_ERR_SCRIPT_EXECUTION_TIMEOUT(Environment* env,
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int64_t timeout) {
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std::ostringstream message;
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message << "Script execution timed out after ";
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message << timeout << "ms";
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THROW_ERR_SCRIPT_EXECUTION_TIMEOUT(env, message.str().c_str());
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}
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inline v8::Local<v8::Value> ERR_BUFFER_TOO_LARGE(v8::Isolate* isolate) {
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char message[128];
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snprintf(message, sizeof(message),
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"Cannot create a Buffer larger than 0x%zx bytes",
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v8::TypedArray::kMaxLength);
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return ERR_BUFFER_TOO_LARGE(isolate, message);
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}
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inline v8::Local<v8::Value> ERR_STRING_TOO_LONG(v8::Isolate* isolate) {
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char message[128];
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snprintf(message, sizeof(message),
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"Cannot create a string longer than 0x%x characters",
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v8::String::kMaxLength);
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return ERR_STRING_TOO_LONG(isolate, message);
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}
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#define THROW_AND_RETURN_IF_NOT_BUFFER(env, val, prefix) \
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do { \
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if (!Buffer::HasInstance(val)) \
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return node::THROW_ERR_INVALID_ARG_TYPE(env, \
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prefix " must be a buffer"); \
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} while (0)
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#define THROW_AND_RETURN_IF_NOT_STRING(env, val, prefix) \
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do { \
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if (!val->IsString()) \
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return node::THROW_ERR_INVALID_ARG_TYPE(env, \
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prefix " must be a string"); \
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} while (0)
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namespace errors {
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class TryCatchScope : public v8::TryCatch {
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public:
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enum class CatchMode { kNormal, kFatal };
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explicit TryCatchScope(Environment* env, CatchMode mode = CatchMode::kNormal)
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: v8::TryCatch(env->isolate()), env_(env), mode_(mode) {}
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~TryCatchScope();
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// Since the dtor is not virtual we need to make sure no one creates
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// object of it in the free store that might be held by polymorphic pointers.
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void* operator new(std::size_t count) = delete;
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void* operator new[](std::size_t count) = delete;
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TryCatchScope(TryCatchScope&) = delete;
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TryCatchScope(TryCatchScope&&) = delete;
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TryCatchScope operator=(TryCatchScope&) = delete;
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TryCatchScope operator=(TryCatchScope&&) = delete;
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private:
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Environment* env_;
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CatchMode mode_;
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};
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const char* errno_string(int errorno);
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} // namespace errors
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void DecorateErrorStack(Environment* env,
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const errors::TryCatchScope& try_catch);
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} // namespace node
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#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#endif // SRC_NODE_ERRORS_H_
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