14e72e7ffa
Previous Stacked Borrows diagnostics were missing a lot of information about the state of the interpreter, and it was difficult to add additional state because it was threaded through all the intervening function signatures. This change factors a lot of the arguments which used to be passed individually to many stacked borrows functions into a single `DiagnosticCx`, which is built in `Stacks::for_each`, and since it wraps a handle to `AllocHistory`, we can now handle more nuanced things like heterogeneous borrow of `!Freeze` types.
36 lines
1.6 KiB
Plaintext
36 lines
1.6 KiB
Plaintext
error: Undefined Behavior: not granting access to tag <TAG> because incompatible item [Unique for <TAG>] is protected by call ID
|
|
--> $DIR/aliasing_mut1.rs:LL:CC
|
|
|
|
|
LL | pub fn safe(_x: &mut i32, _y: &mut i32) {}
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not granting access to tag <TAG> because incompatible item [Unique for <TAG>] is protected by call ID
|
|
|
|
|
= help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental
|
|
= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
|
|
help: <TAG> was created by a Unique retag at offsets [0x0..0x4]
|
|
--> $DIR/aliasing_mut1.rs:LL:CC
|
|
|
|
|
LL | let xraw: *mut i32 = unsafe { mem::transmute(&mut x) };
|
|
| ^^^^^^
|
|
help: <TAG> was protected due to <TAG> which was created here
|
|
--> $DIR/aliasing_mut1.rs:LL:CC
|
|
|
|
|
LL | let xraw: *mut i32 = unsafe { mem::transmute(&mut x) };
|
|
| ^^^^^^
|
|
help: this protector is live for this call
|
|
--> $DIR/aliasing_mut1.rs:LL:CC
|
|
|
|
|
LL | pub fn safe(_x: &mut i32, _y: &mut i32) {}
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
= note: backtrace:
|
|
= note: inside `safe` at $DIR/aliasing_mut1.rs:LL:CC
|
|
note: inside `main` at $DIR/aliasing_mut1.rs:LL:CC
|
|
--> $DIR/aliasing_mut1.rs:LL:CC
|
|
|
|
|
LL | safe_raw(xraw, xraw);
|
|
| ^^^^^^^^^^^^^^^^^^^^
|
|
|
|
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
|
|
|
|
error: aborting due to previous error
|
|
|