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runtime: don't pass *Type to new #8886

dvyukov opened this issue Oct 7, 2014 · 1 comment

runtime: don't pass *Type to new #8886

dvyukov opened this issue Oct 7, 2014 · 1 comment


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@dvyukov dvyukov commented Oct 7, 2014

Currently we pass a pointer to Type descriptor to new. It preserves alive all methods of
allocated types, as Type contains Method array. So linker can't strip them.
We should pass a special object that contains only necessary information to new:
1. size
2. size class (needs to be ignored for arrays with more than one element)
2. name string
3. embed GC pointer bitmask or a pointer to satellite GC bitmask (if both are zero, then
it's noptr type)

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@rsc rsc commented Oct 7, 2014

Comment 1:

I intend to do this once the toolchain is converted to Go.

Labels changed: added release-go1.5, removed release-none.

@bradfitz bradfitz modified the milestone: Go1.5 Dec 16, 2014
@bradfitz bradfitz removed the release-go1.5 label Dec 16, 2014
@rsc rsc removed accepted labels Apr 14, 2015
@rsc rsc modified the milestones: Go1.6, Go1.5 May 19, 2015
@rsc rsc modified the milestones: Unplanned, Go1.6 Nov 5, 2015
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