91 lines
2.0 KiB
Rust
91 lines
2.0 KiB
Rust
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// Test for issue 81576
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// Remove generic arguments if no method is found for all possible generic argument
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struct Wrapper2<'a, T, const C: usize> {
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x: &'a T,
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}
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impl<'a, const C: usize> Wrapper2<'a, i8, C> {
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fn method(&self) {}
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}
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impl<'a, const C: usize> Wrapper2<'a, i16, C> {
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fn method(&self) {}
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}
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impl<'a, const C: usize> Wrapper2<'a, i32, C> {
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fn method(&self) {}
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}
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struct Wrapper<T>(T);
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impl Wrapper<i8> {
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fn method(&self) {}
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}
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impl Wrapper<i16> {
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fn method(&self) {}
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}
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impl Wrapper<i32> {
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fn method(&self) {}
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}
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impl Wrapper<i64> {
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fn method(&self) {}
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}
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impl Wrapper<u8> {
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fn method(&self) {}
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}
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impl Wrapper<u16> {
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fn method(&self) {}
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}
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struct Point<T> {
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x: T,
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y: T,
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}
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impl Point<f64> {
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fn distance(&self) -> f64 {
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self.x.hypot(self.y)
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}
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}
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struct Other;
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impl Other {
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fn other(&self) {}
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}
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fn main() {
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let point_f64 = Point{ x: 1_f64, y: 1_f64};
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let d = point_f64.distance();
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let point_i32 = Point{ x: 1_i32, y: 1_i32};
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let d = point_i32.distance();
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//~^ ERROR no method named `distance` found for struct `Point<i32>
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let d = point_i32.other();
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//~^ ERROR no method named `other` found for struct `Point<_>
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let v = vec![1_i32, 2, 3];
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v.iter().map(|x| x * x).extend(std::iter::once(100));
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//~^ ERROR no method named `extend` found for struct `Map<_, _>
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let wrapper = Wrapper(true);
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wrapper.method();
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//~^ ERROR no method named `method` found for struct `Wrapper<bool>
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wrapper.other();
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//~^ ERROR no method named `other` found for struct `Wrapper<_>
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let boolean = true;
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let wrapper = Wrapper2::<'_, _, 3> {x: &boolean};
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wrapper.method();
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//~^ ERROR no method named `method` found for struct `Wrapper2<'_, bool, 3_usize>
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wrapper.other();
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//~^ ERROR no method named `other` found for struct `Wrapper2<'_, _, _>
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let a = vec![1, 2, 3];
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a.not_found();
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//~^ ERROR no method named `not_found` found for struct `Vec<_, _>
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}
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