bjoernager/rust
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Simplify some nested if statements

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This commit is contained in:
Michael Goulet 2024-09-11 13:32:53 -04:00
parent 5a2dd7d4f3
commit 954419aab0
36 changed files with 340 additions and 380 deletions
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30
compiler/rustc_middle/src/mir/interpret/allocation.rs
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@ -448,22 +448,20 @@ impl<Prov: Provenance, Extra, Bytes: AllocBytes> Allocation<Prov, Extra, Bytes>
bad: uninit_range,
}))
})?;
if !Prov::OFFSET_IS_ADDR {
if !self.provenance.range_empty(range, cx) {
// Find the provenance.
let (offset, _prov) = self
.provenance
.range_get_ptrs(range, cx)
.first()
.copied()
.expect("there must be provenance somewhere here");
let start = offset.max(range.start); // the pointer might begin before `range`!
let end = (offset + cx.pointer_size()).min(range.end()); // the pointer might end after `range`!
return Err(AllocError::ReadPointerAsInt(Some(BadBytesAccess {
access: range,
bad: AllocRange::from(start..end),
})));
}
if !Prov::OFFSET_IS_ADDR && !self.provenance.range_empty(range, cx) {
// Find the provenance.
let (offset, _prov) = self
.provenance
.range_get_ptrs(range, cx)
.first()
.copied()
.expect("there must be provenance somewhere here");
let start = offset.max(range.start); // the pointer might begin before `range`!
let end = (offset + cx.pointer_size()).min(range.end()); // the pointer might end after `range`!
return Err(AllocError::ReadPointerAsInt(Some(BadBytesAccess {
access: range,
bad: AllocRange::from(start..end),
})));
}
Ok(self.get_bytes_unchecked(range))
}