From: bors <bors@rust-lang.org>
Date: Sat, 13 Sep 2014 08:06:00 +0000 (+0000)
Subject: auto merge of #17175 : pcwalton/rust/region-bounds-on-closures, r=huonw
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=90304ed2669a9554a5aa5c58194e71fa373abe13;p=rust.git

auto merge of #17175 : pcwalton/rust/region-bounds-on-closures, r=huonw

This can break code like:

    fn call_rec(f: |uint| -> uint) -> uint {
        (|x| f(x))(call_rec(f))
    }

Change this code to use a temporary instead of violating the borrow
rules:

    fn call_rec(f: |uint| -> uint) -> uint {
        let tmp = call_rec(|x| f(x)); f(tmp)
    }

Closes #17144.

[breaking-change]

r? @huonw
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90304ed2669a9554a5aa5c58194e71fa373abe13