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compiler-core: implement DerefMut and IndexMut for Constants by youknowone · Pull Request #8557 · RustPython/RustPython · GitHub

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compiler-core: implement DerefMut and IndexMut for Constants #8557

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Merged
youknowone merged 1 commit into from
Aug 20, 2026
+13 −1
Conversation 1 Commits 1 Checks 27 Files changed 1
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compiler-core: implement DerefMut and IndexMut for Constants #8557

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14 changes: 13 additions & 1 deletion crates/compiler-core/src/bytecode.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@ use bitflags::bitflags;
use core::{
cell::UnsafeCell,
hash, mem,
ops::{Deref, Index, IndexMut},
ops::{Deref, DerefMut, Index, IndexMut},
sync::atomic::{AtomicU8, AtomicU16, AtomicUsize, Ordering},
};
use itertools::Itertools;
Expand Down Expand Up @@ -383,6 +383,12 @@ impl<C: Constant> Deref for Constants<C> {
}
}

impl<C: Constant> DerefMut for Constants<C> {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}

impl<C: Constant> Index<oparg::ConstIdx> for Constants<C> {
type Output = C;

Expand All @@ -391,6 +397,12 @@ impl<C: Constant> Index<oparg::ConstIdx> for Constants<C> {
}
}

impl<C: Constant> IndexMut<oparg::ConstIdx> for Constants<C> {
fn index_mut(&mut self, consti: oparg::ConstIdx) -> &mut Self::Output {
&mut self.0[consti.as_usize()]
}
}

impl<C: Constant> FromIterator<C> for Constants<C> {
fn from_iter<T: IntoIterator<Item = C>>(iter: T) -> Self {
Self(iter.into_iter().collect())
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