40 lines
797 B
Rust
40 lines
797 B
Rust
// run-pass
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#![allow(dead_code)]
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#![allow(unused_variables)]
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// Type ascription doesn't lead to unsoundness
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#![feature(type_ascription)]
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use std::mem;
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const C1: u8 = 10: u8;
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const C2: [u8; 1: usize] = [1];
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struct S {
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a: u8
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}
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fn main() {
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assert_eq!(C1.into(): i32, 10);
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assert_eq!(C2[0], 1);
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let s = S { a: 10: u8 };
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let arr = &[1u8, 2, 3];
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let mut v = arr.iter().cloned().collect(): Vec<_>;
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v.push(4);
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assert_eq!(v, [1, 2, 3, 4]);
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let a = 1: u8;
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let b = a.into(): u16;
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assert_eq!(v[a.into(): usize], 2);
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assert_eq!(mem::size_of_val(&a), 1);
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assert_eq!(mem::size_of_val(&b), 2);
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assert_eq!(b, 1: u16);
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let mut v = Vec::new();
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v: Vec<u8> = vec![1, 2, 3]; // Place expression type ascription
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assert_eq!(v, [1u8, 2, 3]);
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}
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