Function finalizeIssue

packages/zod/src/v4/core/util.ts:849–869

(
  iss: errors.$ZodRawIssue,
  ctx: schemas.ParseContextInternal | undefined,
  config: $ZodConfig
)

}

export function finalizeIssue(
  iss: errors.$ZodRawIssue,
  ctx: schemas.ParseContextInternal | undefined,
  config: $ZodConfig
): errors.$ZodIssue {
  const message = iss.message
    ? iss.message
    : (unwrapMessage(iss.inst?._zod.def?.error?.(iss as never)) ??
      unwrapMessage(ctx?.error?.(iss as never)) ??
      unwrapMessage(config.customError?.(iss)) ??
      unwrapMessage(config.localeError?.(iss)) ??
      "Invalid input");

  const { inst: _inst, continue: _continue, input: _input, ...rest } = iss as any;
  rest.path ??= [];
  rest.message = message;
  if (ctx?.reportInput) {
    rest.input = _input;
  }
  return rest;
}

export function getSizableOrigin(input: any): "set" | "map" | "file" | "unknown" {
  if (input instanceof Set) return "set";