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29 lines
395 B
Rust
29 lines
395 B
Rust
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fn take(_f: impl FnMut(i32)) {}
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fn test1(f: impl FnMut(u32)) {
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take(f)
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//~^ ERROR [E0277]
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}
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fn test2(f: impl FnMut(i32, i32)) {
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take(f)
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//~^ ERROR [E0277]
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}
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fn test3(f: impl FnMut()) {
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take(f)
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//~^ ERROR [E0277]
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}
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fn test4(f: impl FnOnce(i32)) {
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take(f)
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//~^ ERROR [E0277]
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}
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fn test5(f: impl FnOnce(u32)) {
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take(f)
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//~^ ERROR [E0277]
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}
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fn main() {}
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