Allow creation of defer nodes for custom types

[evgenykochetkov]

Right now only xod/core/defer(*) count as defer nodes:

xod/packages/xod-project/src/patchPathUtils.js

Lines 214 to 231 in 41eaec5

	//
	// defer-* nodes
	//
	const legacyDeferNodeRegExp = new RegExp(
	`^xod/core/defer-(${dataTypes.join('|')})$`
	);
	// TODO: when custom types will be added this should be generalized
	const deferNodeSpecializationRegExp = new RegExp(
	`^xod/core/defer\\((${dataTypes.join('|')})\\)$`
	);
	// :: PatchPath -> Boolean
	export const isDeferNodeType = R.anyPass([
	R.equals('xod/core/defer'),
	R.test(deferNodeSpecializationRegExp),
	R.test(legacyDeferNodeRegExp),
	]);

Those restrictions have to be relaxed.

• Any node named defer(typename) should be considered a defer node if:

  • it has a single input of type input-typename
  • it has a single output of type output-typename
  • it's implemented in C++

• Abstract xod/core/defer should correctly resolve to defer(typename)

• isEarlyDeferPass function introduced in Improve error propagation through defer nodes #1873 should be added to documentation