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## Summary This PR is the first in a series derived from https://github.com/astral-sh/ruff/pull/16308, each of which add support for detecting one version-related syntax error from https://github.com/astral-sh/ruff/issues/6591. This one should be the largest because it also includes the addition of the `Parser::add_unsupported_syntax_error` method Otherwise I think the general structure will be the same for each syntax error: * Detecting the error in the parser * Inline parser tests for the new error * New ruff CLI tests for the new error ## Test Plan As noted above, there are new inline parser tests, as well as new ruff CLI tests. Once https://github.com/astral-sh/ruff/pull/16379 is resolved, there should also be new mdtests for red-knot, but this PR does not currently include those.
47 lines
1.3 KiB
Text
47 lines
1.3 KiB
Text
---
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source: crates/ruff_python_parser/tests/fixtures.rs
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input_file: crates/ruff_python_parser/resources/inline/err/walrus_py37.py
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---
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## AST
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```
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Module(
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ModModule {
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range: 0..54,
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body: [
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Expr(
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StmtExpr {
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range: 45..53,
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value: Named(
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ExprNamed {
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range: 46..52,
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target: Name(
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ExprName {
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range: 46..47,
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id: Name("x"),
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ctx: Store,
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},
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),
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value: NumberLiteral(
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ExprNumberLiteral {
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range: 51..52,
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value: Int(
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1,
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),
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},
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),
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},
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),
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},
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),
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],
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},
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)
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```
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## Unsupported Syntax Errors
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1 | # parse_options: { "target-version": "3.7" }
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2 | (x := 1)
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| ^^^^^^ Syntax Error: Cannot use named assignment expression (`:=`) on Python 3.7 (syntax was added in Python 3.8)
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