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Add test for restriction of anonymous types on validation
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‎src/test/ui/unnamed_fields/restrict_anonymous.rs

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#![allow(incomplete_features)]
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#![feature(unnamed_fields)]
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fn f() -> struct { field: u8 } {} //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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fn f2(a: struct { field: u8 } ) {} //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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union G {
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field: struct { field: u8 } //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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}
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//~| ERROR unions may not contain fields that need dropping [E0740]
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struct H { _: u8 } // Should error after hir checks
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struct I(struct { field: u8 }, u8); //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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enum J {
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K(struct { field: u8 }), //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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L {
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_ : struct { field: u8 } //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous fields are not allowed outside of structs or unions
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//~| ERROR anonymous structs are unimplemented
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},
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M {
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_ : u8 //~ ERROR anonymous fields are not allowed outside of structs or unions
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}
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}
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static M: union { field: u8 } = 0; //~ ERROR anonymous unions are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous unions are unimplemented
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type N = union { field: u8 }; //~ ERROR anonymous unions are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous unions are unimplemented
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fn main() {
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const O: struct { field: u8 } = 0; //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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let p: [struct { field: u8 }; 1]; //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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let q: (struct { field: u8 }, u8); //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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let cl = || -> struct { field: u8 } {}; //~ ERROR anonymous structs are not allowed outside of unnamed struct or union fields
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//~^ ERROR anonymous structs are unimplemented
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}

‎src/test/ui/unnamed_fields/restrict_anonymous.stderr

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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:4:11
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|
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LL | fn f() -> struct { field: u8 } {}
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:7:10
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|
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LL | fn f2(a: struct { field: u8 } ) {}
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:11:12
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|
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LL | field: struct { field: u8 }
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:18:10
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|
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LL | struct I(struct { field: u8 }, u8);
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:22:7
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|
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LL | K(struct { field: u8 }),
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous fields are not allowed outside of structs or unions
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--> $DIR/restrict_anonymous.rs:25:9
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|
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LL | _ : struct { field: u8 }
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| -^^^^^^^^^^^^^^^^^^^^^^^
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| |
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| anonymous field declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:25:13
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|
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LL | _ : struct { field: u8 }
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous fields are not allowed outside of structs or unions
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--> $DIR/restrict_anonymous.rs:30:9
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|
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LL | _ : u8
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| -^^^^^
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| |
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| anonymous field declared here
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error: anonymous unions are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:34:11
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|
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LL | static M: union { field: u8 } = 0;
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| ^^^^^^^^^^^^^^^^^^^ anonymous union declared here
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error: anonymous unions are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:37:10
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|
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LL | type N = union { field: u8 };
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| ^^^^^^^^^^^^^^^^^^^ anonymous union declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:41:14
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|
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LL | const O: struct { field: u8 } = 0;
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:44:13
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|
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LL | let p: [struct { field: u8 }; 1];
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:47:13
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|
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LL | let q: (struct { field: u8 }, u8);
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are not allowed outside of unnamed struct or union fields
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--> $DIR/restrict_anonymous.rs:50:20
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|
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LL | let cl = || -> struct { field: u8 } {};
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| ^^^^^^^^^^^^^^^^^^^^ anonymous struct declared here
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:4:11
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|
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LL | fn f() -> struct { field: u8 } {}
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:7:10
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|
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LL | fn f2(a: struct { field: u8 } ) {}
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:11:12
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|
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LL | field: struct { field: u8 }
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:18:10
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|
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LL | struct I(struct { field: u8 }, u8);
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:22:7
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|
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LL | K(struct { field: u8 }),
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:25:13
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|
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LL | _ : struct { field: u8 }
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous unions are unimplemented
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--> $DIR/restrict_anonymous.rs:34:11
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|
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LL | static M: union { field: u8 } = 0;
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| ^^^^^^^^^^^^^^^^^^^
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error: anonymous unions are unimplemented
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--> $DIR/restrict_anonymous.rs:37:10
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|
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LL | type N = union { field: u8 };
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| ^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:44:13
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|
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LL | let p: [struct { field: u8 }; 1];
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:47:13
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|
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LL | let q: (struct { field: u8 }, u8);
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:50:20
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|
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LL | let cl = || -> struct { field: u8 } {};
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| ^^^^^^^^^^^^^^^^^^^^
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error: anonymous structs are unimplemented
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--> $DIR/restrict_anonymous.rs:41:14
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|
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LL | const O: struct { field: u8 } = 0;
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| ^^^^^^^^^^^^^^^^^^^^
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error[E0740]: unions may not contain fields that need dropping
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--> $DIR/restrict_anonymous.rs:11:5
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|
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LL | field: struct { field: u8 }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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note: `std::mem::ManuallyDrop` can be used to wrap the type
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--> $DIR/restrict_anonymous.rs:11:5
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|
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LL | field: struct { field: u8 }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: aborting due to 27 previous errors
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For more information about this error, try `rustc --explain E0740`.

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