coalesce

A nil coalescing operator ?? for Nim

Pure Nim score 15/100 · tests present · no docs generated

Summary

nimble install coalesce

choosenim install coalesce

git clone https://github.com/piedar/coalesce

Platform	Linux	macOS	Windows	FreeBSD	OpenBSD	NetBSD	Android	iOS	WASM	Embedded
coalesce	✓	✓	✓	-	-	-	-	-	-	-

Repository	https://github.com/piedar/coalesce
Homepage	https://github.com/piedar/coalesce
Registry Source	nimble_official

The coalesce package implements a null coalescing operator ?? for Nim.

The most obvious case is choosing the first non-nil value.

let a: string = nil
let x = a ?? "b"
assert x == "b"

The operator also supports Option[T].

let a: Option[string] = none(string)
let x = a ?? "b"
assert x == "b"

Longer chains work too, and the expression short-circuits if possible.

let result = tryComputeFast(input) ?? tryComputeSlow(input) ?? myDefault