OptionalcauseReadonlyinvalidReadonlykindDiscriminated tag for exhaustive matching.
OptionalstackStaticstackThe Error.stackTraceLimit property specifies the number of stack frames
collected by a stack trace (whether generated by new Error().stack or
Error.captureStackTrace(obj)).
The default value is 10 but may be set to any valid JavaScript number. Changes
will affect any stack trace captured after the value has been changed.
If set to a non-number value, or set to a negative number, stack traces will not capture any frames.
StaticcaptureCreates a .stack property on targetObject, which when accessed returns
a string representing the location in the code at which
Error.captureStackTrace() was called.
const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack; // Similar to `new Error().stack`
The first line of the trace will be prefixed with
${myObject.name}: ${myObject.message}.
The optional constructorOpt argument accepts a function. If given, all frames
above constructorOpt, including constructorOpt, will be omitted from the
generated stack trace.
The constructorOpt argument is useful for hiding implementation
details of error generation from the user. For instance:
function a() {
b();
}
function b() {
c();
}
function c() {
// Create an error without stack trace to avoid calculating the stack trace twice.
const { stackTraceLimit } = Error;
Error.stackTraceLimit = 0;
const error = new Error();
Error.stackTraceLimit = stackTraceLimit;
// Capture the stack trace above function b
Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
throw error;
}
a();
OptionalconstructorOpt: FunctionStaticprepare
Raised when
createCausl({ name })receives a name that does not match the validity rule/^[A-Za-z0-9_.:-]{1,256}$/.Remarks
The
namefield is surfaced asgraphIdon every IR record (schema 3 onward). The character set is the intersection of "safe in JSON", "safe in URL fragments", and "safe in filesystem paths" — three places adopters have been observed pasting a graphId. The 256-char cap mirrors the §12.2 teaching-cost cap on public surface names. The engine throws at construction so the failure mode is "the engine could not be built" rather than "a downstream pass failed to read the IR". Refusal is structural; there is no recovery path other than supplying a different name (or omittingnameand accepting the UUID v4 fallback).Param: name
The rejected
nameargument.