49 lines
1.8 KiB
Rust
49 lines
1.8 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test rules governing higher-order pure fns.
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fn take<T>(_v: T) {}
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fn assign_to_pure(x: pure fn(), y: fn(), z: unsafe fn()) {
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take::<pure fn()>(x);
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take::<pure fn()>(y); //~ ERROR expected pure fn but found impure fn
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take::<pure fn()>(z); //~ ERROR expected pure fn but found unsafe fn
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}
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fn assign_to_impure(x: pure fn(), y: fn(), z: unsafe fn()) {
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take::<fn()>(x);
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take::<fn()>(y);
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take::<fn()>(z); //~ ERROR expected impure fn but found unsafe fn
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}
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fn assign_to_unsafe(x: pure fn(), y: fn(), z: unsafe fn()) {
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take::<unsafe fn()>(x);
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take::<unsafe fn()>(y);
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take::<unsafe fn()>(z);
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}
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fn assign_to_pure2(x: pure fn@(), y: fn@(), z: unsafe fn@()) {
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take::<pure fn()>(x);
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take::<pure fn()>(y); //~ ERROR expected pure fn but found impure fn
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take::<pure fn()>(z); //~ ERROR expected pure fn but found unsafe fn
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take::<pure fn~()>(x); //~ ERROR expected ~ closure, found @ closure
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take::<pure fn~()>(y); //~ ERROR expected ~ closure, found @ closure
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take::<pure fn~()>(z); //~ ERROR expected ~ closure, found @ closure
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take::<unsafe fn~()>(x); //~ ERROR expected ~ closure, found @ closure
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take::<unsafe fn~()>(y); //~ ERROR expected ~ closure, found @ closure
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take::<unsafe fn~()>(z); //~ ERROR expected ~ closure, found @ closure
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}
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fn main() {
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}
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