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.
11 lines
313 B
Rust
11 lines
313 B
Rust
// Make sure that we cannot pass by argument a `&` that got already invalidated.
|
|
fn foo(_: &i32) {}
|
|
|
|
fn main() {
|
|
let x = &mut 42;
|
|
let xraw = x as *mut _;
|
|
let xref = unsafe { &*xraw };
|
|
unsafe { *xraw = 42 }; // unfreeze
|
|
foo(xref); //~ ERROR: /retag .* tag does not exist in the borrow stack/
|
|
}
|