Re: Redefining things which aren't properties

On 2020-02-15, Christopher Schultz wrote:

> Due to a mistake in a somewhat complicated build file, I discovered
> that pattern sets can be redefined in a way that is fairly surprising
> to this seasoned ant user.

Yes, you references can be re-assigned. I'm not sure whether we have
this documented properly, anywhere, probably not. At least you should
see a warning.

Historically properties became immutable (pre Ant 1.1) by accident and
then we thought this was neat and kept it that way. References OTOH have
never been immutable and I know a few build processes that rely on this
behavior.

Stefan

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