src/test/ui/feature-gates/feature-gate-const_in_array_repeat_expressions.rs

   1 // ignore-tidy-linelength
   2 #![allow(warnings)]
   3
   4 struct Bar;
   5
   6 // This function would compile with the feature gate, and tests that it is suggested.
   7 fn foo() {
   8     let arr: [Option<String>; 2] = [None::<String>; 2];
   9     //~^ ERROR the trait bound `std::option::Option<std::string::String>: std::marker::Copy` is not satisfied [E0277]
  10 }
  11
  12 // This function would not compile with the feature gate, and tests that it is not suggested.
  13 fn bar() {
  14     let arr: [Option<String>; 2] = [Some("foo".to_string()); 2];
  15     //~^ ERROR the trait bound `std::option::Option<std::string::String>: std::marker::Copy` is not satisfied [E0277]
  16 }
  17
  18 fn main() {}