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## Summary This PR renames a few AST nodes for clarity: - `Arguments` is now `Parameters` - `Arg` is now `Parameter` - `ArgWithDefault` is now `ParameterWithDefault` For now, the attribute names that reference `Parameters` directly are changed (e.g., on `StmtFunctionDef`), but the attributes on `Parameters` itself are not (e.g., `vararg`). We may revisit that decision in the future. For context, the AST node formerly known as `Arguments` is used in function definitions. Formally (outside of the Python context), "arguments" typically refers to "the values passed to a function", while "parameters" typically refers to "the variables used in a function definition". E.g., if you Google "arguments vs parameters", you'll get some explanation like: > A parameter is a variable in a function definition. It is a placeholder and hence does not have a concrete value. An argument is a value passed during function invocation. We're thus deviating from Python's nomenclature in favor of a scheme that we find to be more precise. |
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