diff options
Diffstat (limited to 'src/test/ui/regions/region-borrow-params-issue-29793-small.rs')
| -rw-r--r-- | src/test/ui/regions/region-borrow-params-issue-29793-small.rs | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/src/test/ui/regions/region-borrow-params-issue-29793-small.rs b/src/test/ui/regions/region-borrow-params-issue-29793-small.rs deleted file mode 100644 index 5f1c2ed08..000000000 --- a/src/test/ui/regions/region-borrow-params-issue-29793-small.rs +++ /dev/null @@ -1,212 +0,0 @@ -// Issue #29793, small regression tests: do not let borrows of -// parameters to ever be returned (expanded with exploration of -// variations). - -// CLOSURES - -fn escaping_borrow_of_closure_params_1() { - let g = |x: usize, y:usize| { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - return f; - }; - - // We delberately do not call `g`; this small version of the test, - // after adding such a call, was (properly) rejected even when the - // system still suffered from issue #29793. - - // g(10, 20)(true); -} - -fn escaping_borrow_of_closure_params_2() { - let g = |x: usize, y:usize| { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - f - }; - - // (we don't call `g`; see above) -} - -fn move_of_closure_params() { - let g = |x: usize, y:usize| { - let f = move |t: bool| if t { x } else { y }; - f; - }; - // (this code is fine, so lets go ahead and ensure rustc accepts call of `g`) - (g(1,2)); -} - -fn ok_borrow_of_fn_params(a: usize, b:usize) { - let g = |x: usize, y:usize| { - let f = |t: bool| if t { a } else { b }; - return f; - }; - // (this code is fine, so lets go ahead and ensure rustc accepts call of `g`) - (g(1,2))(true); -} - -// TOP-LEVEL FN'S - -fn escaping_borrow_of_fn_params_1() { - fn g<'a>(x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - return Box::new(f); - }; - - // (we don't call `g`; see above) -} - -fn escaping_borrow_of_fn_params_2() { - fn g<'a>(x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - Box::new(f) - }; - - // (we don't call `g`; see above) -} - -fn move_of_fn_params() { - fn g<'a>(x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = move |t: bool| if t { x } else { y }; - return Box::new(f); - }; - // (this code is fine, so lets go ahead and ensure rustc accepts call of `g`) - (g(1,2))(true); -} - -// INHERENT METHODS - -fn escaping_borrow_of_method_params_1() { - struct S; - impl S { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - return Box::new(f); - } - } - - // (we don't call `g`; see above) -} - -fn escaping_borrow_of_method_params_2() { - struct S; - impl S { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - Box::new(f) - } - } - // (we don't call `g`; see above) -} - -fn move_of_method_params() { - struct S; - impl S { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = move |t: bool| if t { x } else { y }; - return Box::new(f); - } - } - // (this code is fine, so lets go ahead and ensure rustc accepts call of `g`) - (S.g(1,2))(true); -} - -// TRAIT IMPL METHODS - -fn escaping_borrow_of_trait_impl_params_1() { - trait T { fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a>; } - struct S; - impl T for S { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - return Box::new(f); - } - } - - // (we don't call `g`; see above) -} - -fn escaping_borrow_of_trait_impl_params_2() { - trait T { fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a>; } - struct S; - impl T for S { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - Box::new(f) - } - } - // (we don't call `g`; see above) -} - -fn move_of_trait_impl_params() { - trait T { fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a>; } - struct S; - impl T for S { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = move |t: bool| if t { x } else { y }; - return Box::new(f); - } - } - // (this code is fine, so lets go ahead and ensure rustc accepts call of `g`) - (S.g(1,2))(true); -} - -// TRAIT DEFAULT METHODS - -fn escaping_borrow_of_trait_default_params_1() { - struct S; - trait T { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - return Box::new(f); - } - } - impl T for S {} - // (we don't call `g`; see above) -} - -fn escaping_borrow_of_trait_default_params_2() { - struct S; - trait T { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = |t: bool| if t { x } else { y }; // (separate errors for `x` vs `y`) - //~^ ERROR E0373 - //~| ERROR E0373 - Box::new(f) - } - } - impl T for S {} - // (we don't call `g`; see above) -} - -fn move_of_trait_default_params() { - struct S; - trait T { - fn g<'a>(&self, x: usize, y:usize) -> Box<dyn Fn(bool) -> usize + 'a> { - let f = move |t: bool| if t { x } else { y }; - return Box::new(f); - } - } - impl T for S {} - // (this code is fine, so lets go ahead and ensure rustc accepts call of `g`) - (S.g(1,2))(true); -} - -fn main() { } |