src/test/ui/type/type-check-defaults.rs

   1 use std::iter::FromIterator;
   2 use std::vec::IntoIter;
   3 use std::ops::Add;
   4
   5 struct Foo<T, U: FromIterator<T>>(T, U);
   6 struct WellFormed<Z = Foo<i32, i32>>(Z);
   7 //~^ ERROR a value of type `i32` cannot be built from an iterator over elements of type `i32`
   8 struct WellFormedNoBounds<Z:?Sized = Foo<i32, i32>>(Z);
   9 //~^ ERROR a value of type `i32` cannot be built from an iterator over elements of type `i32`
  10
  11 struct Bounds<T:Copy=String>(T);
  12 //~^ ERROR the trait bound `std::string::String: std::marker::Copy` is not satisfied [E0277]
  13
  14 struct WhereClause<T=String>(T) where T: Copy;
  15 //~^ ERROR the trait bound `std::string::String: std::marker::Copy` is not satisfied [E0277]
  16
  17 trait TraitBound<T:Copy=String> {}
  18 //~^ ERROR the trait bound `std::string::String: std::marker::Copy` is not satisfied [E0277]
  19
  20 trait Super<T: Copy> { }
  21 trait Base<T = String>: Super<T> { }
  22 //~^ ERROR the trait bound `T: std::marker::Copy` is not satisfied [E0277]
  23
  24 trait ProjectionPred<T:Iterator = IntoIter<i32>> where T::Item : Add<u8> {}
  25 //~^ ERROR cannot add `u8` to `i32` [E0277]
  26
  27 fn main() { }