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digitalmars.D - DustMite: Unwrap? Imports?

reply "dsimcha" <dsimcha yahoo.com> writes:
I've recently started using DustMite to reduce compiler errors in 
SciD, which instantiates an insane number of templates and is 
nightmarish to reduce by hand.

Two questions:

1.  What exactly does unwrap (as opposed to remove) do?

2.  When there are multiple imports in a single statement, i.e. 
"import foo, bar;", does DustMite try to get rid of individual 
ones without deleting the whole statement?  Is this what unwrap 
does?
Dec 08 2011
parent "Vladimir Panteleev" <vladimir thecybershadow.net> writes:
On Thursday, 8 December 2011 at 21:39:20 UTC, dsimcha wrote:
 I've recently started using DustMite to reduce compiler errors 
 in SciD, which instantiates an insane number of templates and 
 is nightmarish to reduce by hand.

 Two questions:

 1.  What exactly does unwrap (as opposed to remove) do?

Unwrap is a reduction operation which tries replacing a node with its children. It will remove redundant parens and braces, for example.
 2.  When there are multiple imports in a single statement, i.e. 
 "import foo, bar;", does DustMite try to get rid of individual 
 ones without deleting the whole statement?

Yes, but it can't remove the first (or the last, I forgot) item in a comma-separated list. This is because the internal representation has no notions of token-separated lists. It's a long-standing complicated problem.
 Is this what unwrap does?

No.
Dec 08 2011