71 lines
2.0 KiB
Rust
71 lines
2.0 KiB
Rust
#![feature(plugin, box_syntax)]
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#![plugin(clippy)]
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#![deny(no_effect)]
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#![allow(dead_code)]
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#![allow(path_statements)]
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struct Unit;
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struct Tuple(i32);
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struct Struct {
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field: i32
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}
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enum Enum {
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Tuple(i32),
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Struct { field: i32 },
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}
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fn get_number() -> i32 { 0 }
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fn get_struct() -> Struct { Struct { field: 0 } }
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fn main() {
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let s = get_struct();
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let s2 = get_struct();
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0; //~ERROR statement with no effect
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s2; //~ERROR statement with no effect
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Unit; //~ERROR statement with no effect
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Tuple(0); //~ERROR statement with no effect
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Struct { field: 0 }; //~ERROR statement with no effect
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Struct { ..s }; //~ERROR statement with no effect
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Enum::Tuple(0); //~ERROR statement with no effect
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Enum::Struct { field: 0 }; //~ERROR statement with no effect
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5 + 6; //~ERROR statement with no effect
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*&42; //~ERROR statement with no effect
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&6; //~ERROR statement with no effect
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(5, 6, 7); //~ERROR statement with no effect
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box 42; //~ERROR statement with no effect
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..; //~ERROR statement with no effect
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5..; //~ERROR statement with no effect
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..5; //~ERROR statement with no effect
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5..6; //~ERROR statement with no effect
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[42, 55]; //~ERROR statement with no effect
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[42, 55][1]; //~ERROR statement with no effect
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(42, 55).1; //~ERROR statement with no effect
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[42; 55]; //~ERROR statement with no effect
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[42; 55][13]; //~ERROR statement with no effect
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let mut x = 0;
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|| x += 5; //~ERROR statement with no effect
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// Do not warn
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get_number();
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Tuple(get_number());
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Struct { field: get_number() };
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Struct { ..get_struct() };
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Enum::Tuple(get_number());
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Enum::Struct { field: get_number() };
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5 + get_number();
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*&get_number();
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&get_number();
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(5, 6, get_number());
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box get_number();
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get_number()..;
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..get_number();
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5..get_number();
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[42, get_number()];
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[42, 55][get_number() as usize];
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(42, get_number()).1;
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[get_number(); 55];
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[42; 55][get_number() as usize];
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}
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