Prelude

This prelude file proposes standard library features that may belong in the language (compiler-internal) prelude sometime, after some further experience and discussion. Until then, they live here.

`public func nyi() : None`

:::warning Not yet implemented :::

Mark incomplete code with the nyi and xxx functions.

Each have calls that are well-typed in all typing contexts, which trap in all execution contexts.

`public func xxx() : None`

`public func unreachable() : None`

Mark unreachable code with the unreachable function.

Calls are well-typed in all typing contexts, and they trap in all execution contexts.