#ifndef SRC_NODE_ERRORS_H_

#define SRC_NODE_ERRORS_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "env.h"

#include "v8.h"

// Use ostringstream to print exact-width integer types

// because the format specifiers are not available on AIX.

#include <sstream>

namespace node {

enum ErrorHandlingMode { CONTEXTIFY_ERROR, FATAL_ERROR, MODULE_ERROR };

void AppendExceptionLine(Environment* env,

v8::Local<v8::Value> er,

v8::Local<v8::Message> message,

enum ErrorHandlingMode mode);

[[noreturn]] void FatalError(const char* location, const char* message);

void OnFatalError(const char* location, const char* message);

// Helpers to construct errors similar to the ones provided by

// lib/internal/errors.js.

// Example: with `V(ERR_INVALID_ARG_TYPE, TypeError)`, there will be

// `node::ERR_INVALID_ARG_TYPE(isolate, "message")` returning

// a `Local<Value>` containing the TypeError with proper code and message

#define ERRORS_WITH_CODE(V) \

V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE, Error) \

V(ERR_BUFFER_OUT_OF_BOUNDS, RangeError) \

V(ERR_BUFFER_TOO_LARGE, Error) \

V(ERR_CONSTRUCT_CALL_REQUIRED, TypeError) \

V(ERR_CONSTRUCT_CALL_INVALID, TypeError) \

V(ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH, RangeError) \

V(ERR_CRYPTO_UNKNOWN_CIPHER, Error) \

V(ERR_CRYPTO_UNKNOWN_DH_GROUP, Error) \

V(ERR_EXECUTION_ENVIRONMENT_NOT_AVAILABLE, Error) \

V(ERR_INVALID_ARG_VALUE, TypeError) \

V(ERR_OSSL_EVP_INVALID_DIGEST, Error) \

V(ERR_INVALID_ARG_TYPE, TypeError) \

V(ERR_INVALID_THIS, TypeError) \

V(ERR_INVALID_TRANSFER_OBJECT, TypeError) \

V(ERR_MEMORY_ALLOCATION_FAILED, Error) \

V(ERR_MESSAGE_TARGET_CONTEXT_UNAVAILABLE, Error) \

V(ERR_MISSING_ARGS, TypeError) \

V(ERR_MISSING_MESSAGE_PORT_IN_TRANSFER_LIST, TypeError) \

V(ERR_MISSING_PASSPHRASE, TypeError) \

V(ERR_MISSING_PLATFORM_FOR_WORKER, Error) \

V(ERR_NON_CONTEXT_AWARE_DISABLED, Error) \

V(ERR_OUT_OF_RANGE, RangeError) \

V(ERR_SCRIPT_EXECUTION_INTERRUPTED, Error) \

V(ERR_SCRIPT_EXECUTION_TIMEOUT, Error) \

V(ERR_STRING_TOO_LONG, Error) \

V(ERR_TLS_INVALID_PROTOCOL_METHOD, TypeError) \

V(ERR_TRANSFERRING_EXTERNALIZED_SHAREDARRAYBUFFER, TypeError) \

V(ERR_TLS_PSK_SET_IDENTIY_HINT_FAILED, Error) \

V(ERR_VM_MODULE_CACHED_DATA_REJECTED, Error) \

V(ERR_WASI_NOT_STARTED, Error) \

V(ERR_WORKER_INIT_FAILED, Error) \

V(ERR_PROTO_ACCESS, Error)

#define V(code, type) \

inline v8::Local<v8::Value> code(v8::Isolate* isolate, \

const char* message) { \

v8::Local<v8::String> js_code = OneByteString(isolate, #code); \

v8::Local<v8::String> js_msg = OneByteString(isolate, message); \

v8::Local<v8::Object> e = \

v8::Exception::type(js_msg)->ToObject( \

isolate->GetCurrentContext()).ToLocalChecked(); \

e->Set(isolate->GetCurrentContext(), OneByteString(isolate, "code"), \

js_code).Check(); \

return e; \

} \

inline void THROW_ ## code(v8::Isolate* isolate, const char* message) { \

isolate->ThrowException(code(isolate, message)); \

} \

inline void THROW_ ## code(Environment* env, const char* message) { \

THROW_ ## code(env->isolate(), message); \

}

ERRORS_WITH_CODE(V)

#undef V

// Errors with predefined static messages

#define PREDEFINED_ERROR_MESSAGES(V) \

V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE, \

"Buffer is not available for the current Context") \

V(ERR_CONSTRUCT_CALL_INVALID, "Constructor cannot be called") \

V(ERR_CONSTRUCT_CALL_REQUIRED, "Cannot call constructor without `new`") \

V(ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH, \

"Input buffers must have the same byte length") \

V(ERR_CRYPTO_UNKNOWN_CIPHER, "Unknown cipher") \

V(ERR_CRYPTO_UNKNOWN_DH_GROUP, "Unknown DH group") \

V(ERR_EXECUTION_ENVIRONMENT_NOT_AVAILABLE, \

"Context not associated with Node.js environment") \

V(ERR_INVALID_THIS, "Value of \"this\" is the wrong type") \

V(ERR_INVALID_TRANSFER_OBJECT, "Found invalid object in transferList") \

V(ERR_MEMORY_ALLOCATION_FAILED, "Failed to allocate memory") \

V(ERR_OSSL_EVP_INVALID_DIGEST, "Invalid digest used") \

V(ERR_MESSAGE_TARGET_CONTEXT_UNAVAILABLE, \

"A message object could not be deserialized successfully in the target " \

"vm.Context") \

V(ERR_MISSING_MESSAGE_PORT_IN_TRANSFER_LIST, \

"Object that needs transfer was found in message but not listed " \

"in transferList") \

V(ERR_MISSING_PLATFORM_FOR_WORKER, \

"The V8 platform used by this instance of Node does not support " \

"creating Workers") \

V(ERR_NON_CONTEXT_AWARE_DISABLED, \

"Loading non context-aware native modules has been disabled") \

V(ERR_SCRIPT_EXECUTION_INTERRUPTED, \

"Script execution was interrupted by `SIGINT`") \

V(ERR_TRANSFERRING_EXTERNALIZED_SHAREDARRAYBUFFER, \

"Cannot serialize externalized SharedArrayBuffer") \

V(ERR_TLS_PSK_SET_IDENTIY_HINT_FAILED, "Failed to set PSK identity hint") \

V(ERR_WASI_NOT_STARTED, "wasi.start() has not been called") \

V(ERR_WORKER_INIT_FAILED, "Worker initialization failure") \

V(ERR_PROTO_ACCESS, \

"Accessing Object.prototype.__proto__ has been " \

"disallowed with --disable-proto=throw")

#define V(code, message) \

inline v8::Local<v8::Value> code(v8::Isolate* isolate) { \

return code(isolate, message); \

} \

inline void THROW_ ## code(v8::Isolate* isolate) { \

isolate->ThrowException(code(isolate, message)); \

} \

inline void THROW_ ## code(Environment* env) { \

THROW_ ## code(env->isolate()); \

}

PREDEFINED_ERROR_MESSAGES(V)

#undef V

// Errors with predefined non-static messages

inline void THROW_ERR_SCRIPT_EXECUTION_TIMEOUT(Environment* env,

int64_t timeout) {

std::ostringstream message;

message << "Script execution timed out after ";

message << timeout << "ms";

THROW_ERR_SCRIPT_EXECUTION_TIMEOUT(env, message.str().c_str());

}

inline v8::Local<v8::Value> ERR_BUFFER_TOO_LARGE(v8::Isolate* isolate) {

char message[128];

snprintf(message, sizeof(message),

"Cannot create a Buffer larger than 0x%zx bytes",

v8::TypedArray::kMaxLength);

return ERR_BUFFER_TOO_LARGE(isolate, message);

}

inline v8::Local<v8::Value> ERR_STRING_TOO_LONG(v8::Isolate* isolate) {

char message[128];

snprintf(message, sizeof(message),

"Cannot create a string longer than 0x%x characters",

v8::String::kMaxLength);

return ERR_STRING_TOO_LONG(isolate, message);

}

#define THROW_AND_RETURN_IF_NOT_BUFFER(env, val, prefix) \

do { \

if (!Buffer::HasInstance(val)) \

return node::THROW_ERR_INVALID_ARG_TYPE(env, \

prefix " must be a buffer"); \

} while (0)

#define THROW_AND_RETURN_IF_NOT_STRING(env, val, prefix) \

do { \

if (!val->IsString()) \

return node::THROW_ERR_INVALID_ARG_TYPE(env, \

prefix " must be a string"); \

} while (0)

namespace errors {

class TryCatchScope : public v8::TryCatch {

public:

enum class CatchMode { kNormal, kFatal };

explicit TryCatchScope(Environment* env, CatchMode mode = CatchMode::kNormal)

: v8::TryCatch(env->isolate()), env_(env), mode_(mode) {}

~TryCatchScope();

// Since the dtor is not virtual we need to make sure no one creates

// object of it in the free store that might be held by polymorphic pointers.

void* operator new(std::size_t count) = delete;

void* operator new[](std::size_t count) = delete;

TryCatchScope(TryCatchScope&) = delete;

TryCatchScope(TryCatchScope&&) = delete;

TryCatchScope operator=(TryCatchScope&) = delete;

TryCatchScope operator=(TryCatchScope&&) = delete;

private:

Environment* env_;

CatchMode mode_;

};

// Trigger the global uncaught exception handler `process._fatalException`

// in JS land (which emits the 'uncaughtException' event). If that returns

// true, continue program execution, otherwise exit the process.

void TriggerUncaughtException(v8::Isolate* isolate,

const v8::TryCatch& try_catch);

void TriggerUncaughtException(v8::Isolate* isolate,

v8::Local<v8::Value> error,

v8::Local<v8::Message> message,

bool from_promise = false);

const char* errno_string(int errorno);

void PerIsolateMessageListener(v8::Local<v8::Message> message,

v8::Local<v8::Value> error);

void DecorateErrorStack(Environment* env,

const errors::TryCatchScope& try_catch);

} // namespace errors

} // namespace node

#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif // SRC_NODE_ERRORS_H_