Change vec::{head,tail,init,last} to return references#5213
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erickt wants to merge 9 commits into
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r+ |
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@kud1ing: thanks for catching that. I'll fix it. |
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I think this should work now. Unfortunately http://buildbot.rust-lang.org is down, so I can't confirm. Can it be retried again? |
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This patch series changes a handful of vec functions to return references instead of copies. The one downside with making this change is that these functions aren't usable in a couple cases now due to some purity complaints. For example, this [change](erickt@c31e81a#L1R87). I couldn't figure out a way to get `last` to work on a `@mut ~[...]` type, so I ended up having to use `*crate_cache[crate_cache.len() - 1].metas`.
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Use generator own DefId Fixes rust-lang#5207 changelog: Fix ICE in `missing_errors_doc`
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Add data race test for `poll`
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This patch series changes a handful of vec functions to return references instead of copies. The one downside with making this change is that these functions aren't usable in a couple cases now due to some purity complaints. For example, this change. I couldn't figure out a way to get
lastto work on a@mut ~[...]type, so I ended up having to use*crate_cache[crate_cache.len() - 1].metas.