Walkthrough

The changes refactor how the compiler tracks the current class name for private name mangling. Instead of storing the class name in the Compiler struct, a new private field is added to the ir::CodeInfo struct and managed on the code stack, ensuring the private name context is local to each code object.

Changes

Poem

In the warren of code, a secret we keep,
No more class names in the compiler’s deep.
Now each code stack frame, with a private so neat,
Tracks its own context—oh, what a feat!
The rabbit hops on, with mangling complete.
🐇✨

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Reviewing files that changed from the base of the PR and between 2f94a63 and caa854f.

• compiler/codegen/src/compile.rs (6 hunks)
• compiler/codegen/src/ir.rs (2 hunks)

**/*.rs: Follow the default rustfmt code style (cargo fmt to format)
Always run clippy to lint code (cargo clippy) before completing tasks. Fix any warnings or lints that are introduced by your changes
Follow Rust best practices for error handling and memory management
Use the macro system (pyclass, pymodule, pyfunction, etc.) when implementing Python functionality in Rust

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List of files the instruction was applied to:

• compiler/codegen/src/ir.rs
• compiler/codegen/src/compile.rs

compiler/codegen/src/symboltable.rs (1)

• mangle_name (1579-1594)

• GitHub Check: Run snippets and cpython tests (windows-latest)
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• GitHub Check: Run tests under miri
• GitHub Check: Run rust tests (windows-latest)
• GitHub Check: Run snippets and cpython tests on wasm-wasi
• GitHub Check: Run rust tests (ubuntu-latest)
• GitHub Check: Check Rust code with rustfmt and clippy
• GitHub Check: Run rust tests (macos-latest)
• GitHub Check: Ensure compilation on various targets

compiler/codegen/src/ir.rs (2)

77-77: Well-designed addition for private name mangling.

The private field is appropriately typed as Option<String> and clearly documented. The placement alongside other metadata fields like obj_name and qualname is logical and maintains good code organization.

---

105-105: Proper handling of compilation-only field.

Correctly ignoring the private field during finalization is the right approach since this field is only needed during compilation and shouldn't be included in the final CodeObject. The explicit comment makes the intent clear.

compiler/codegen/src/compile.rs (5)

314-314: LGTM!

Correctly initializes the private field to None for module-level code.

---

411-413: LGTM!

The private name is correctly inherited from the parent scope when creating nested code objects.

Also applies to: 423-423

---

593-598: Clean refactoring of the mangle function.

The function now correctly retrieves the private name from the current code unit's context rather than from compiler state.

---

1738-1746: Correct handling of private name context for type parameters.

Type parameters should not be subject to class name mangling, so temporarily clearing the private context while compiling them is the right approach.

---

1755-1757: LGTM!

Correctly sets the private name to the class name for implementing Python's private name mangling in class scopes.

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