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Change "mutable?" to something else ("const"?) and fix covariance/invariance #518

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pcwalton opened this issue Jun 18, 2011 · 6 comments
Closed

Change "mutable?" to something else ("const"?) and fix covariance/invariance #518

pcwalton opened this issue Jun 18, 2011 · 6 comments
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@brson
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A-typesystem Area: The type system C-cleanup Category: PRs that clean code up or issues documenting cleanup.
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0.1 first support...

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@pcwalton
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AIUI the general consensus was that we should implement a mutable "slot" type. This is basically equivalent to an interior record with one mutable field. This allows us to remove the mutable? botch.
@ghost ghost assigned pcwalton Aug 25, 2011
@graydon
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graydon commented Aug 25, 2011

Assigning to first release so that it gets cleaned up before anyone relies on it in current state.

@pcwalton
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Actually I'm not sure about this; I can't figure out what the deref semantics need to be. I think mutable? may be the best solution...

@pcwalton
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See issue #856. We should at least fix covariance/invariance for mutable?.

@brson
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brson commented Oct 18, 2011

The variance of mutable? is fixed by 0f0fa26

@brson
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brson commented Oct 21, 2011

With the variance issue fixed can we punt on mutable? for 0.1?

@ghost ghost assigned brson Nov 16, 2011
@brson
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brson commented Nov 16, 2011

mutable? is now const

@brson brson closed this as completed Nov 16, 2011
keeperofdakeys pushed a commit to keeperofdakeys/rust that referenced this issue Dec 12, 2017
@bors
Auto merge of rust-lang#518 - binarycrusader:master, r=alexcrichton
cfc0165 
Add missing MSG_PEEK definition for Solaris

Fixes rust-lang#517
pdietl pushed a commit to pdietl/rust that referenced this issue Apr 23, 2020
@Centril
Merge pull request rust-lang#518 from matthewjasper/update-clarification
ec8bb56 
Clarify what access struct updates do
ZuseZ4 pushed a commit to EnzymeAD/rust that referenced this issue Mar 7, 2023
@wsmoses
Loop-level rematerialization (rust-lang#518)
313c989 
* Continue to fix loop

* Move antimalloc

* Begin shadow loop remat

* Building

* Functioning

* Restore deref

* Partial fix

* Fixes

* Rewrite overwrite memory infrastructure

* Working

* Fix format

* Fix build bug

* Fix analysis bug

* cleanup
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@brson brson

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A-typesystem Area: The type system C-cleanup Category: PRs that clean code up or issues documenting cleanup.
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Milestone
0.1 first supported public release
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@graydon @brson @pcwalton