43 lines
2.0 KiB
Rust
43 lines
2.0 KiB
Rust
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// Copyright 2014 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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// A version of coerce-expect-unsized that uses type ascription.
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// Doesn't work so far, but supposed to work eventually
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#![feature(box_syntax, type_ascription)]
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use std::fmt::Debug;
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pub fn main() {
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let _ = box { [1, 2, 3] }: Box<[i32]>; //~ ERROR mismatched types
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let _ = box if true { [1, 2, 3] } else { [1, 3, 4] }: Box<[i32]>; //~ ERROR mismatched types
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let _ = box match true { true => [1, 2, 3], false => [1, 3, 4] }: Box<[i32]>;
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//~^ ERROR mismatched types
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let _ = box { |x| (x as u8) }: Box<Fn(i32) -> _>; //~ ERROR mismatched types
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let _ = box if true { false } else { true }: Box<Debug>; //~ ERROR mismatched types
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let _ = box match true { true => 'a', false => 'b' }: Box<Debug>; //~ ERROR mismatched types
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let _ = &{ [1, 2, 3] }: &[i32]; //~ ERROR mismatched types
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let _ = &if true { [1, 2, 3] } else { [1, 3, 4] }: &[i32]; //~ ERROR mismatched types
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let _ = &match true { true => [1, 2, 3], false => [1, 3, 4] }: &[i32];
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//~^ ERROR mismatched types
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let _ = &{ |x| (x as u8) }: &Fn(i32) -> _; //~ ERROR mismatched types
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let _ = &if true { false } else { true }: &Debug; //~ ERROR mismatched types
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let _ = &match true { true => 'a', false => 'b' }: &Debug; //~ ERROR mismatched types
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let _ = Box::new([1, 2, 3]): Box<[i32]>; //~ ERROR mismatched types
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let _ = Box::new(|x| (x as u8)): Box<Fn(i32) -> _>; //~ ERROR mismatched types
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let _ = vec![
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Box::new(|x| (x as u8)),
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box |x| (x as i16 as u8),
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]: Vec<Box<Fn(i32) -> _>>;
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}
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