src/test/ui/methods/method-call-err-msg.rs

   1 // Test that parameter cardinality or missing method error gets span exactly.
   2
   3 pub struct Foo;
   4 impl Foo {
   5     fn zero(self) -> Foo { self }
   6     fn one(self, _: isize) -> Foo { self }
   7     fn two(self, _: isize, _: isize) -> Foo { self }
   8     fn three<T>(self, _: T, _: T, _: T) -> Foo { self }
   9 }
  10
  11 fn main() {
  12     let x = Foo;
  13     x.zero(0)   //~ ERROR this function takes 0 arguments but 1 argument was supplied
  14      .one()     //~ ERROR this function takes 1 argument but 0 arguments were supplied
  15      .two(0);   //~ ERROR this function takes 2 arguments but 1 argument was supplied
  16
  17     let y = Foo;
  18     y.zero()
  19      .take()    //~ ERROR no method named `take` found
  20      .one(0);
  21     y.three::<usize>(); //~ ERROR this function takes 3 arguments but 0 arguments were supplied
  22 }