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make recursive-zst test unleashed #71604

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Apr 28, 2020
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Original file line number Diff line number Diff line change
@@ -1,17 +1,17 @@
error[E0391]: cycle detected when const-evaluating `FOO`
--> $DIR/recursive-zst-static.rs:7:18
--> $DIR/recursive-zst-static.rs:10:18
|
LL | static FOO: () = FOO;
| ^^^
|
note: ...which requires const-evaluating `FOO`...
--> $DIR/recursive-zst-static.rs:7:1
--> $DIR/recursive-zst-static.rs:10:1
|
LL | static FOO: () = FOO;
| ^^^^^^^^^^^^^^^^^^^^^
= note: ...which again requires const-evaluating `FOO`, completing the cycle
note: cycle used when const-evaluating + checking `FOO`
--> $DIR/recursive-zst-static.rs:7:1
--> $DIR/recursive-zst-static.rs:10:1
|
LL | static FOO: () = FOO;
| ^^^^^^^^^^^^^^^^^^^^^
Expand Down
3 changes: 3 additions & 0 deletions src/test/ui/consts/recursive-zst-static.rs
Original file line number Diff line number Diff line change
@@ -1,3 +1,6 @@
// revisions: default unleash
//[unleash]compile-flags: -Zunleash-the-miri-inside-of-you

// This test ensures that we do not allow ZST statics to initialize themselves without ever
// actually creating a value of that type. This is important, as the ZST may have private fields
// that users can reasonably expect to only get initialized by their own code. Thus unsafe code
Expand Down
21 changes: 21 additions & 0 deletions src/test/ui/consts/recursive-zst-static.unleash.stderr
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
error[E0391]: cycle detected when const-evaluating `FOO`
--> $DIR/recursive-zst-static.rs:10:18
|
LL | static FOO: () = FOO;
| ^^^
|
note: ...which requires const-evaluating `FOO`...
--> $DIR/recursive-zst-static.rs:10:1
|
LL | static FOO: () = FOO;
| ^^^^^^^^^^^^^^^^^^^^^
= note: ...which again requires const-evaluating `FOO`, completing the cycle
note: cycle used when const-evaluating + checking `FOO`
--> $DIR/recursive-zst-static.rs:10:1
|
LL | static FOO: () = FOO;
| ^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0391`.