56 lines
1.1 KiB
Rust
56 lines
1.1 KiB
Rust
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#![crate_type = "lib"]
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#![feature(ergonomic_clones)]
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#![allow(incomplete_features)]
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use std::clone::UseCloned;
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pub fn ergonomic_clone_closure_move() -> String {
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// CHECK-LABEL: fn ergonomic_clone_closure_move(
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// CHECK: _0 = move (_1.0: std::string::String);
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// CHECK-NOT: <String as Clone>::clone
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let s = String::from("hi");
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let cl = use || s;
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cl()
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}
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#[derive(Clone)]
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struct Foo;
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impl UseCloned for Foo {}
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pub fn ergonomic_clone_closure_use_cloned() -> Foo {
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// CHECK-LABEL: fn ergonomic_clone_closure_use_cloned(
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// CHECK: <Foo as Clone>::clone
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let f = Foo;
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let f1 = use || f;
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let f2 = use || f;
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f
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}
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pub fn ergonomic_clone_closure_copy() -> i32 {
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// CHECK-LABEL: fn ergonomic_clone_closure_copy(
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// CHECK: _0 = copy ((*_1).0: i32);
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// CHECK-NOT: <i32 as Clone>::clone
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let i = 1;
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let i1 = use || i;
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let i2 = use || i;
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i
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}
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pub fn ergonomic_clone_closure_use_cloned_generics<T: UseCloned>(f: T) -> T {
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// CHECK-LABEL: fn ergonomic_clone_closure_use_cloned_generics(
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// CHECK: <T as Clone>::clone
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let f1 = use || f;
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let f2 = use || f;
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f
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}
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