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## Summary This PR splits the `Constant` enum as individual literal nodes. It introduces the following new nodes for each variant: * `ExprStringLiteral` * `ExprBytesLiteral` * `ExprNumberLiteral` * `ExprBooleanLiteral` * `ExprNoneLiteral` * `ExprEllipsisLiteral` The main motivation behind this refactor is to introduce the new AST node for implicit string concatenation in the coming PR. The elements of that node will be either a string literal, bytes literal or a f-string which can be implemented using an enum. This means that a string or bytes literal cannot be represented by `Constant::Str` / `Constant::Bytes` which creates an inconsistency. This PR avoids that inconsistency by splitting the constant nodes into it's own literal nodes, literal being the more appropriate naming convention from a static analysis tool perspective. This also makes working with literals in the linter and formatter much more ergonomic like, for example, if one would want to check if this is a string literal, it can be done easily using `Expr::is_string_literal_expr` or matching against `Expr::StringLiteral` as oppose to matching against the `ExprConstant` and enum `Constant`. A few AST helper methods can be simplified as well which will be done in a follow-up PR. This introduces a new `Expr::is_literal_expr` method which is the same as `Expr::is_constant_expr`. There are also intermediary changes related to implicit string concatenation which are quiet less. This is done so as to avoid having a huge PR which this already is. ## Test Plan 1. Verify and update all of the existing snapshots (parser, visitor) 2. Verify that the ecosystem check output remains **unchanged** for both the linter and formatter ### Formatter ecosystem check #### `main` | project | similarity index | total files | changed files | |----------------|------------------:|------------------:|------------------:| | cpython | 0.75803 | 1799 | 1647 | | django | 0.99983 | 2772 | 34 | | home-assistant | 0.99953 | 10596 | 186 | | poetry | 0.99891 | 317 | 17 | | transformers | 0.99966 | 2657 | 330 | | twine | 1.00000 | 33 | 0 | | typeshed | 0.99978 | 3669 | 20 | | warehouse | 0.99977 | 654 | 13 | | zulip | 0.99970 | 1459 | 22 | #### `dhruv/constant-to-literal` | project | similarity index | total files | changed files | |----------------|------------------:|------------------:|------------------:| | cpython | 0.75803 | 1799 | 1647 | | django | 0.99983 | 2772 | 34 | | home-assistant | 0.99953 | 10596 | 186 | | poetry | 0.99891 | 317 | 17 | | transformers | 0.99966 | 2657 | 330 | | twine | 1.00000 | 33 | 0 | | typeshed | 0.99978 | 3669 | 20 | | warehouse | 0.99977 | 654 | 13 | | zulip | 0.99970 | 1459 | 22 | |
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| .. | ||
| flake8_to_ruff | ||
| ruff_benchmark | ||
| ruff_cache | ||
| ruff_cli | ||
| ruff_dev | ||
| ruff_diagnostics | ||
| ruff_formatter | ||
| ruff_index | ||
| ruff_linter | ||
| ruff_macros | ||
| ruff_notebook | ||
| ruff_python_ast | ||
| ruff_python_codegen | ||
| ruff_python_formatter | ||
| ruff_python_index | ||
| ruff_python_literal | ||
| ruff_python_parser | ||
| ruff_python_resolver | ||
| ruff_python_semantic | ||
| ruff_python_stdlib | ||
| ruff_python_trivia | ||
| ruff_shrinking | ||
| ruff_source_file | ||
| ruff_text_size | ||
| ruff_wasm | ||
| ruff_workspace | ||