Method

OrInsertWith

func OrInsertWith(factory: () -> V) -> V

Declaring type: MapEntry<K, V>
Namespace: System.Collections.Generic
Assembly: Raven.Core.dll
Source file: MapEntry.rvn

Calls the factory once only when absent, then inserts if still absent.

A synchronous factory; may reenter the map. The current value if present after the factory; otherwise its inserted result. Callback insertion wins. A callback exception propagates before this helper writes; callback side effects are not rolled back.

Parameters

Name	Type	Description
`factory`	() -> V

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OrInsertWith

Parameters

Return value