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Merged
youknowone merged 3 commits into from
Dec 27, 2025
Merged

check surrogates #6547

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4457769
check surrogates
youknowone Dec 26, 2025
c29d54a
check __slots__ isidentifier
youknowone Dec 27, 2025
4184c27
Auto-format: cargo fmt --all
github-actions[bot] Dec 27, 2025
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check __slots__ isidentifier
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@youknowone
youknowone committed Dec 27, 2025
commit c29d54a809f0466965f91ea1b538e812969382fd
2 changes: 1 addition & 1 deletion crates/vm/src/builtins/str.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1336,7 +1336,7 @@ impl PyStr {
}

#[pymethod]
fn isidentifier(&self) -> bool {
pub fn isidentifier(&self) -> bool {
let Some(s) = self.to_str() else { return false };
let mut chars = s.chars();
let is_identifier_start = chars.next().is_some_and(|c| c == '_' || is_xid_start(c));
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9 changes: 9 additions & 0 deletions crates/vm/src/builtins/type.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1378,6 +1378,15 @@ impl Constructor for PyType {
tuple.try_into_typed(vm)?
};

// Validate that all slots are valid identifiers
for slot in slots.iter() {
if !slot.isidentifier() {
return Err(
vm.new_type_error("__slots__ must be identifiers".to_owned())
);
}
}

// Check if __dict__ is in slots
let dict_name = "__dict__";
let has_dict = slots.iter().any(|s| s.as_str() == dict_name);
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