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Disallow writing through mutable pointers stored in non-mut Box. #23859

Merged
merged 5 commits into from
Mar 31, 2015
Merged

Disallow writing through mutable pointers stored in non-mut Box. #23859

merged 5 commits into from
Mar 31, 2015

Commits on Mar 30, 2015

  1. Mucho debug instrumentation.

    @pnkfelix
    pnkfelix committed Mar 30, 2015
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  2. expr_use_visitor: Added comment explaining meaning of boolean return … 

    …value.
    @pnkfelix
    pnkfelix committed Mar 30, 2015
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  3. mem_categorization.rs removed pub from method called only from this… 

    … mod.
    @pnkfelix
    pnkfelix committed Mar 30, 2015
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  4. Address Issue 14270 by making cmt::freely_aliasable result more fin… 

    …e-grained.

Instead of encoding the aliasability (i.e. whether the cmt is uniquely
writable or not) as an option, now pass back an enum indicating
either: 1. freely-aliasable (thus not uniquely-writable),
2. non-aliasble (thus uniquely writable), or 3. unique but immutable
(and thus not uniquely writable, according to proposal from issue
14270.)

This is all of course a giant hack that will hopefully go away with an
eventually removal of special treatment of `Box<T>` (aka `ty_unique`)
from the compiler.
    @pnkfelix
    pnkfelix committed Mar 30, 2015
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  5. Fallout to test.

    @pnkfelix
    pnkfelix committed Mar 30, 2015
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