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fix for ICE issue #25180 #25209

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fix for ICE issue #25180 #25209

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96229e8
fixed ICE issue #25180
llogiq May 8, 2015
29daa29
formatting correction
llogiq May 8, 2015
1434715
crossed the i-s and dotted the t-s ;-) Also added a run-pass test and…
llogiq May 8, 2015
ca5c694
Pulled walk_fn() into Var mode, extended test
llogiq May 10, 2015
6e19cfa
more tests
llogiq May 10, 2015
a18ce4d
fixed errors in test code
llogiq May 10, 2015
4eec41a
Removed println! from test
llogiq May 12, 2015
3715898
added feature declaration
llogiq May 12, 2015
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7 changes: 4 additions & 3 deletions src/librustc/middle/check_const.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -251,9 +251,10 @@ impl<'a, 'tcx, 'v> Visitor<'v> for CheckCrateVisitor<'a, 'tcx> {
b: &'v ast::Block,
s: Span,
fn_id: ast::NodeId) {
assert!(self.mode == Mode::Var);
self.with_euv(Some(fn_id), |euv| euv.walk_fn(fd, b));
visit::walk_fn(self, fk, fd, b, s);
self.with_mode(Mode::Var, |v| {
v.with_euv(Some(fn_id), |euv| euv.walk_fn(fd, b));
visit::walk_fn(v, fk, fd, b, s);
})
}

fn visit_pat(&mut self, p: &ast::Pat) {
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18 changes: 18 additions & 0 deletions src/test/run-pass/issue-25180.rs
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@@ -0,0 +1,18 @@
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// pretty-expanded FIXME #25180
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The failure was in pretty tests, which I don't you can do if you're using macros like println! which use unstable items in their expansions.


const x: &'static Fn() = &|| println!("ICE here");
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Do multiple statements, arguments and local variables work in these closures?


fn main() {
x()
}