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// Test for issue 81576
// Remove generic arguments if no method is found for all possible generic argument
use std::marker::PhantomData;
struct Wrapper2<'a, T, const C: usize> {
x: &'a T,
}
impl<'a, const C: usize> Wrapper2<'a, i8, C> {
fn method(&self) {}
}
impl<'a, const C: usize> Wrapper2<'a, i16, C> {
fn method(&self) {}
}
impl<'a, const C: usize> Wrapper2<'a, i32, C> {
fn method(&self) {}
}
struct Wrapper<T>(T);
impl Wrapper<i8> {
fn method(&self) {}
}
impl Wrapper<i16> {
fn method(&self) {}
}
impl Wrapper<i32> {
fn method(&self) {}
}
impl Wrapper<i64> {
fn method(&self) {}
}
impl Wrapper<u8> {
fn method(&self) {}
}
impl Wrapper<u16> {
fn method(&self) {}
}
struct Point<T> {
x: T,
y: T,
}
impl Point<f64> {
fn distance(&self) -> f64 {
self.x.hypot(self.y)
}
}
struct Other;
impl Other {
fn other(&self) {}
}
struct Struct<T>{
_phatom: PhantomData<T>
}
impl<T> Default for Struct<T> {
fn default() -> Self {
Self{ _phatom: PhantomData }
}
}
impl<T: Clone + Copy + PartialEq + Eq + PartialOrd + Ord> Struct<T> {
fn method(&self) {}
}
fn main() {
let point_f64 = Point{ x: 1_f64, y: 1_f64};
let d = point_f64.distance();
let point_i32 = Point{ x: 1_i32, y: 1_i32};
let d = point_i32.distance();
//~^ ERROR no method named `distance` found for struct `Point<i32>
let d = point_i32.other();
//~^ ERROR no method named `other` found for struct `Point
let v = vec![1_i32, 2, 3];
v.iter().map(|x| x * x).extend(std::iter::once(100));
//~^ ERROR no method named `extend` found for struct `Map
let wrapper = Wrapper(true);
wrapper.method();
//~^ ERROR no method named `method` found for struct `Wrapper<bool>
wrapper.other();
//~^ ERROR no method named `other` found for struct `Wrapper
let boolean = true;
let wrapper = Wrapper2::<'_, _, 3> {x: &boolean};
wrapper.method();
//~^ ERROR no method named `method` found for struct `Wrapper2<'_, bool, 3_usize>
wrapper.other();
//~^ ERROR no method named `other` found for struct `Wrapper2
let a = vec![1, 2, 3];
a.not_found();
//~^ ERROR no method named `not_found` found for struct `Vec
let s = Struct::<f64>::default();
s.method();
//~^ ERROR the method `method` exists for struct `Struct<f64>`, but its trait bounds were not satisfied
}
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