call_with_callback

func

Callback to call with the result of <code>func()</code>,
or the error thrown.

callback

Extra info to add to the error object. Must be a named list.

info

<code>callback</code> will be called with two arguments, the first one will the
error object if <code>func()</code> threw an error, or <code>NULL</code> otherwise. The second
argument is <code>NULL</code> on error, and the result of <code>func()</code> otherwise.

internal

Metadata and package cache for CRAN-like repositories.
This is a utility package to be used by package management tools
that want to take advantage of caching.

call_with_callback: Call `func` and then call `callback` with the result

Description

Usage

Arguments