From: bors <bors@rust-lang.org>
Date: Thu, 4 Aug 2016 05:56:33 +0000 (-0700)
Subject: Auto merge of #35015 - petrochenkov:forearg, r=nikomatsakis
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=271d048523b6c1b0e773d9e5cc76bbb997cc180c;p=rust.git

Auto merge of #35015 - petrochenkov:forearg, r=nikomatsakis

Properly enforce the "patterns aren't allowed in foreign functions" rule

Cases like `arg @ PATTERN` or `mut arg` were missing.
Apply the same rule to function pointer types.

Closes https://github.com/rust-lang/rust/issues/35203
[breaking-change], no breakage in sane code is expected though
r? @nikomatsakis

This is somewhat related to https://github.com/rust-lang/rfcs/pull/1685 (cc @matklad).
The goal is to eventually support full pattern syntax where it makes sense (function body may present) and to support *only* the following forms - `TYPE`, `ident: TYPE`, `_: TYPE` - where patterns don't make sense (function body doesn't present), i.e. in foreign functions and function pointer types.
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271d048523b6c1b0e773d9e5cc76bbb997cc180c