BaseNode

Source: packages/parametric/src/nodes/BaseNode.ts

Properties

Name	Type	Description
`error`	`string`	Last error message; empty string when valid, undefined after a successful eval.
`value`	`unknown`	Cached evaluated value; undefined when the node is in an error state.
`isDirty`	`boolean`	True when the node needs re-evaluation before its value can be trusted.
`pending`	`boolean`	True while an async compute() is in flight (its result hasn't settled yet).
`_epoch`	`number`	Bumped on every dirty (see `setDirty`/`markDirty`) — a stale async settle compares its captured epoch against the current one and discards itself on mismatch (a newer edit superseded it while it was in flight).
`owner`	`any`	Walk up to the nearest owner that has a `nodes` collection (ModelScope).

Signature	Description
`compute(): unknown`	Compute the raw value for this node; override in subclasses to produce actual output.
`evaluate(listener?: () => void): unknown`	Evaluate this node, cache the result, and notify dependents; returns the cached value. When `compute()` returns a thenable, this returns the prior (stale) value synchronously and settles later — see core/maybeAsync.ts.
`display(listener?: () => void): void`	Return the human-readable display string for this node's value (or its error message).
`isPending(listener?: () => void): void`	True while an async compute() is still settling (see `pending`).
`setError(message: string): void`	Set an error message on this node and notify listeners. Fires "error" (specific) and "change" (the universal event — see ParameterNode.setKey's doc).
`copy(): void`	Duplicate this node in its collection, inserting it right after the original.