Module error_code 

Stable IPC error code constants.

Every RuntimeResponse::Error / RuntimeResponseV2::Error code field produced by the runtime is one of the constants in this module. The codes are frozen for the entire 1.x cycle: existing codes are never renamed, and new codes may only be added (additive).

The runtime constructs error responses exclusively from these constants. Hosts and clients may switch on the string values; the constants are exported so that downstream Rust code does not have to inline string literals.

Constants

FROZEN_CODES

All frozen error codes in alphabetical order.

HANDLER_INTERNAL_ERROR

Handler reported an internal error (covers all four WIT handler-error variants on the wire for backwards compatibility).

HANDLER_INVALID_OUTPUT

Handler output was not valid JSON.

HANDLER_OUTPUT_TOO_LARGE

Handler output exceeded the host-side size limit.

HANDLER_TIMEOUT

Handler exceeded the wall-clock deadline. Retryable.

HANDLER_TRAP

Handler trapped (unreachable, out-of-bounds, stack overflow, …).

INCOMPATIBLE_API_VERSION

apiVersion was outside [MIN_RUNTIME_API_VERSION, RUNTIME_API_VERSION].

INVALID_CLIENT_IDENTITY

clientName / clientVersion failed length or emptiness checks.

INVALID_JSON

Request body was not valid protocol JSON.

INVALID_REQUEST_ID

requestId was missing, empty, or longer than 128 characters.

NO_INVOKE_HANDLER

Invoke was issued but no handler is registered.

UNSUPPORTED_CAPABILITY

Invoke capability is not in the effective capability set.

Functions

is_frozen

Returns true if code is one of the frozen 1.x error codes.