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add method to get the mutability of an AllocId

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This commit is contained in:
Ralf Jung 2022-08-05 16:39:06 -04:00
parent affe0d3a00
commit d5e9e94741
1 changed files with 7 additions and 0 deletions
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7
compiler/rustc_const_eval/src/interpret/memory.rs
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@ -520,6 +520,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
/// Gives raw access to the `Allocation`, without bounds or alignment checks.
/// The caller is responsible for calling the access hooks!
///
/// You almost certainly want to use `get_ptr_alloc`/`get_ptr_alloc_mut` instead.
fn get_alloc_raw(
&self,
id: AllocId,
@ -589,6 +591,11 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
Ok(&self.get_alloc_raw(id)?.extra)
}
/// Return the `mutability` field of the given allocation.
pub fn get_alloc_mutability<'a>(&'a self, id: AllocId) -> InterpResult<'tcx, Mutability> {
Ok(self.get_alloc_raw(id)?.mutability)
}
/// Gives raw mutable access to the `Allocation`, without bounds or alignment checks.
/// The caller is responsible for calling the access hooks!
///