Error Codes

Why Error Codes?

Because Javet doesn't want to support i18n though both Node.js and V8 support i18n.

• The final binary size will significantly increase with i18n.

• There is no development resource for i18n.

Backward Compatibility

Once the error codes are released, they are likely not changed any more for backward compatibility.

The following error codes are generated automatically from the source code.

Code	Type	Name	Format
101	System	OSNotSupported	OS ${OS} is not supported
102	System	LibraryNotFound	Javet library ${path} is not found
103	System	LibraryNotLoaded	Javet library is not loaded because ${reason}
104	System	NotSupported	${feature} is not supported
105	System	FailedToReadPath	Failed to read ${path}
201	Compilation	CompilationFailure	${message}
301	Execution	ExecutionFailure	${message}
302	Execution	ExecutionTerminated	Execution is terminated and continuable is ${continuable}
401	Callback	CallbackSignatureParameterSizeMismatch	Callback signature mismatches: method name is ${methodName}, expected parameter size is ${expectedParameterSize}, actual parameter size is ${actualParameterSize}
402	Callback	CallbackSignatureParameterTypeMismatch	Callback signature mismatches: expected parameter type is ${expectedParameterType}, actual parameter type is ${actualParameterType}
403	Callback	CallbackInjectionFailure	Failed to inject runtime with error message ${message}
404	Callback	CallbackRegistrationFailure	Callback ${methodName} registration failed with error message ${message}
405	Callback	CallbackMethodFailure	Callback ${methodName} failed with error message ${message}
406	Callback	CallbackUnknownFailure	Callback failed with unknown error message ${message}
407	Callback	CallbackUnregistrationFailure	Callback ${methodName} unregistration failed with error message ${message}
408	Callback	CallbackTypeNotSupported	Callback type ${callbackType} is not supported
501	Converter	ConverterFailure	Failed to convert values with error message ${message}
502	Converter	ConverterCircularStructure	Circular structure is detected with max depth ${maxDepth} reached
503	Converter	ConverterSymbolNotBuiltIn	${symbol} is not a built-in symbol
601	Module	ModuleNameEmpty	Module name is empty
602	Module	ModuleNotFound	Module ${moduleName} is not found
603	Module	ModulePermissionDenied	Denied access to module ${moduleName}
701	Lock	LockAcquisitionFailure	Failed to acquire the lock
702	Lock	LockReleaseFailure	Failed to release the lock
703	Lock	LockConflictThreadIdMismatch	Runtime lock conflict is detected with locked thread ID ${lockedThreadID} and current thread ID ${currentThreadID}
801	Runtime	RuntimeAlreadyClosed	Runtime is already closed
802	Runtime	RuntimeAlreadyRegistered	Runtime is already registered
803	Runtime	RuntimeNotRegistered	Runtime is not registered
804	Runtime	RuntimeLeakageDetected	${count} runtime(s) leakage is detected
805	Runtime	RuntimeCloseFailure	Failed to close the runtime with error message ${message}
806	Runtime	RuntimeOutOfMemory	Runtime is out of memory because ${message} with ${heapStatistics}
807	Runtime	RuntimeCreateSnapshotDisabled	Runtime create snapshot is disabled
808	Runtime	RuntimeCreateSnapshotBlocked	Runtime create snapshot is blocked because of ${callbackContextCount} callback context(s), ${referenceCount} reference(s), ${v8ModuleCount} module(s)
901	Engine	EngineNotAvailable	Engine is not available.