45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
// Test `?Sized` local variables.
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trait T {}
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fn f1<W: ?Sized, X: ?Sized, Y: ?Sized, Z: ?Sized>(x: &X) {
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let _: W; // <-- this is OK, no bindings created, no initializer.
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let _: (isize, (X, isize));
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//~^ ERROR the size for values of type
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let y: Y;
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//~^ ERROR the size for values of type
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let y: (isize, (Z, usize));
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//~^ ERROR the size for values of type
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}
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fn f2<X: ?Sized, Y: ?Sized>(x: &X) {
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let y: X;
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//~^ ERROR the size for values of type
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let y: (isize, (Y, isize));
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//~^ ERROR the size for values of type
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}
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fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
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let y: X = *x1;
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//~^ ERROR the size for values of type
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let y = *x2;
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//~^ ERROR the size for values of type
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let (y, z) = (*x3, 4);
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//~^ ERROR the size for values of type
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}
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fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
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let y: X = *x1;
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//~^ ERROR the size for values of type
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let y = *x2;
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//~^ ERROR the size for values of type
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let (y, z) = (*x3, 4);
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//~^ ERROR the size for values of type
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}
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fn g1<X: ?Sized>(x: X) {}
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//~^ ERROR the size for values of type
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fn g2<X: ?Sized + T>(x: X) {}
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//~^ ERROR the size for values of type
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pub fn main() {
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}
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