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Diffstat (limited to 'tests/ui/unsized/unsized3.rs')
-rw-r--r-- | tests/ui/unsized/unsized3.rs | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tests/ui/unsized/unsized3.rs b/tests/ui/unsized/unsized3.rs new file mode 100644 index 000000000..af76aca2c --- /dev/null +++ b/tests/ui/unsized/unsized3.rs @@ -0,0 +1,50 @@ +// Test sized-ness checking in substitution within fn bodies.. + +use std::marker; + +// Unbounded. +fn f1<X: ?Sized>(x: &X) { + f2::<X>(x); + //~^ ERROR the size for values of type +} +fn f2<X>(x: &X) { +} + +// Bounded. +trait T { + fn foo(&self) { } +} +fn f3<X: ?Sized + T>(x: &X) { + f4::<X>(x); + //~^ ERROR the size for values of type +} +fn f4<X: T>(x: &X) { +} + +fn f5<Y>(x: &Y) {} +fn f6<X: ?Sized>(x: &X) {} + +// Test with unsized struct. +struct S<X: ?Sized> { + x: X, +} + +fn f8<X: ?Sized>(x1: &S<X>, x2: &S<X>) { + f5(x1); + //~^ ERROR the size for values of type + f6(x2); // ok +} + +// Test some tuples. +fn f9<X: ?Sized>(x1: Box<S<X>>) { + f5(&(*x1, 34)); + //~^ ERROR the size for values of type +} + +fn f10<X: ?Sized>(x1: Box<S<X>>) { + f5(&(32, *x1)); + //~^ ERROR the size for values of type + //~| ERROR the size for values of type +} + +pub fn main() {} |