125 lines
2.4 KiB
Rust
125 lines
2.4 KiB
Rust
#![feature(plugin, box_syntax, inclusive_range_syntax)]
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#![warn(no_effect, unnecessary_operation)]
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#![allow(dead_code)]
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#![allow(path_statements)]
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#![allow(deref_addrof)]
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#![feature(untagged_unions)]
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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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struct DropUnit;
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impl Drop for DropUnit {
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fn drop(&mut self) {}
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}
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struct DropStruct {
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field: i32
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}
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impl Drop for DropStruct {
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fn drop(&mut self) {}
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}
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struct DropTuple(i32);
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impl Drop for DropTuple {
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fn drop(&mut self) {}
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}
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enum DropEnum {
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Tuple(i32),
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Struct { field: i32 },
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}
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impl Drop for DropEnum {
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fn drop(&mut self) {}
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}
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struct FooString {
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s: String,
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}
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union Union {
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a: u8,
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b: f64,
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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 get_drop_struct() -> DropStruct { DropStruct { field: 0 } }
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unsafe fn unsafe_fn() -> i32 { 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;
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s2;
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Unit;
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Tuple(0);
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Struct { field: 0 };
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Struct { ..s };
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Union { a: 0 };
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Enum::Tuple(0);
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Enum::Struct { field: 0 };
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5 + 6;
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*&42;
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&6;
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(5, 6, 7);
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box 42;
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..;
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5..;
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..5;
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5..6;
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5..=6;
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[42, 55];
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[42, 55][1];
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(42, 55).1;
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[42; 55];
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[42; 55][13];
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let mut x = 0;
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|| x += 5;
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let s: String = "foo".into();
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FooString { s: s };
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// Do not warn
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get_number();
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unsafe { unsafe_fn() };
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DropUnit;
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DropStruct { field: 0 };
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DropTuple(0);
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DropEnum::Tuple(0);
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DropEnum::Struct { field: 0 };
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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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{get_number()};
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FooString { s: String::from("blah"), };
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// Do not warn
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DropTuple(get_number());
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DropStruct { field: get_number() };
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DropStruct { field: get_number() };
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DropStruct { ..get_drop_struct() };
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DropEnum::Tuple(get_number());
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DropEnum::Struct { field: get_number() };
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}
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