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## Summary This is part of the preparation for detecting syntax errors in the parser from https://github.com/astral-sh/ruff/pull/16090/. As suggested in [this comment](https://github.com/astral-sh/ruff/pull/16090/#discussion_r1953084509), I started working on a `ParseOptions` struct that could be stored in the parser. For this initial refactor, I only made it hold the existing `Mode` option, but for syntax errors, we will also need it to have a `PythonVersion`. For that use case, I'm picturing something like a `ParseOptions::with_python_version` method, so you can extend the current calls to something like ```rust ParseOptions::from(mode).with_python_version(settings.target_version) ``` But I thought it was worth adding `ParseOptions` alone without changing any other behavior first. Most of the diff is just updating call sites taking `Mode` to take `ParseOptions::from(Mode)` or those taking `PySourceType`s to take `ParseOptions::from(PySourceType)`. The interesting changes are in the new `parser/options.rs` file and smaller parts of `parser/mod.rs` and `ruff_python_parser/src/lib.rs`. ## Test Plan Existing tests, this should not change any behavior.
136 lines
2.4 KiB
Rust
136 lines
2.4 KiB
Rust
use crate::{parse, parse_expression, parse_module, Mode, ParseOptions};
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#[test]
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fn test_modes() {
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let source = "a[0][1][2][3][4]";
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assert!(parse(source, ParseOptions::from(Mode::Expression)).is_ok());
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assert!(parse(source, ParseOptions::from(Mode::Module)).is_ok());
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}
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#[test]
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fn test_expr_mode_invalid_syntax1() {
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let source = "first second";
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let error = parse_expression(source).unwrap_err();
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insta::assert_debug_snapshot!(error);
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}
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#[test]
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fn test_expr_mode_invalid_syntax2() {
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let source = r"first
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second
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";
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let error = parse_expression(source).unwrap_err();
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insta::assert_debug_snapshot!(error);
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}
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#[test]
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fn test_expr_mode_invalid_syntax3() {
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let source = r"first
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second
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third
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";
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let error = parse_expression(source).unwrap_err();
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insta::assert_debug_snapshot!(error);
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}
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#[test]
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fn test_expr_mode_valid_syntax() {
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let source = "first
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";
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let parsed = parse_expression(source).unwrap();
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insta::assert_debug_snapshot!(parsed.expr());
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}
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#[test]
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fn test_unicode_aliases() {
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// https://github.com/RustPython/RustPython/issues/4566
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let source = r#"x = "\N{BACKSPACE}another cool trick""#;
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let suite = parse_module(source).unwrap().into_suite();
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insta::assert_debug_snapshot!(suite);
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}
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#[test]
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fn test_ipython_escape_commands() {
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let parsed = parse(
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r"
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# Normal Python code
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(
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a
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%
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b
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)
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# Dynamic object info
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??a.foo
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?a.foo
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?a.foo?
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??a.foo()??
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# Line magic
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%timeit a = b
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%timeit foo(b) % 3
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%alias showPath pwd && ls -a
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%timeit a =\
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foo(b); b = 2
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%matplotlib --inline
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%matplotlib \
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--inline
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# System shell access
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!pwd && ls -a | sed 's/^/\ /'
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!pwd \
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&& ls -a | sed 's/^/\\ /'
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!!cd /Users/foo/Library/Application\ Support/
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# Let's add some Python code to make sure that earlier escapes were handled
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# correctly and that we didn't consume any of the following code as a result
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# of the escapes.
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def foo():
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return (
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a
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!=
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b
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)
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# Transforms into `foo(..)`
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/foo 1 2
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;foo 1 2
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,foo 1 2
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# Indented escape commands
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for a in range(5):
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!ls
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p1 = !pwd
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p2: str = !pwd
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foo = %foo \
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bar
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% foo
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foo = %foo # comment
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# Help end line magics
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foo?
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foo.bar??
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foo.bar.baz?
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foo[0]??
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foo[0][1]?
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foo.bar[0].baz[1]??
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foo.bar[0].baz[2].egg??
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"
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.trim(),
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ParseOptions::from(Mode::Ipython),
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)
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.unwrap();
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insta::assert_debug_snapshot!(parsed.syntax());
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}
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