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Diffstat (limited to 'src/test/ui/unsized/unsized6.rs')
-rw-r--r-- | src/test/ui/unsized/unsized6.rs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/test/ui/unsized/unsized6.rs b/src/test/ui/unsized/unsized6.rs new file mode 100644 index 000000000..79133554d --- /dev/null +++ b/src/test/ui/unsized/unsized6.rs @@ -0,0 +1,44 @@ +// Test `?Sized` local variables. + +trait T {} + +fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) { + let _: W; // <-- this is OK, no bindings created, no initializer. + let _: (isize, (X, isize)); + //~^ ERROR the size for values of type + let y: Y; + //~^ ERROR the size for values of type + let y: (isize, (Z, usize)); + //~^ ERROR the size for values of type +} +fn f2<X: ?Sized, Y: ?Sized>(x: &X) { + let y: X; + //~^ ERROR the size for values of type + let y: (isize, (Y, isize)); + //~^ ERROR the size for values of type +} + +fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) { + let y: X = *x1; + //~^ ERROR the size for values of type + let y = *x2; + //~^ ERROR the size for values of type + let (y, z) = (*x3, 4); + //~^ ERROR the size for values of type +} +fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) { + let y: X = *x1; + //~^ ERROR the size for values of type + let y = *x2; + //~^ ERROR the size for values of type + let (y, z) = (*x3, 4); + //~^ ERROR the size for values of type +} + +fn g1<X: ?Sized>(x: X) {} +//~^ ERROR the size for values of type +fn g2<X: ?Sized + T>(x: X) {} +//~^ ERROR the size for values of type + +pub fn main() { +} |