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Implement SIM118 (key in dict) of flake8-simplify
Refs: astral-sh#998
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| key in dict.keys() # SIM118 | ||
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| foo["bar"] in dict.keys() # SIM118 | ||
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| foo() in dict.keys() # SIM118 | ||
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| for key in dict.keys(): # SIM118 | ||
| pass | ||
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| for key in list(dict.keys()): | ||
| if some_property(key): | ||
| del dict[key] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| pub mod plugins; | ||
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| #[cfg(test)] | ||
| mod tests { | ||
| use std::convert::AsRef; | ||
| use std::path::Path; | ||
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| use anyhow::Result; | ||
| use test_case::test_case; | ||
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| use crate::checks::CheckCode; | ||
| use crate::linter::test_path; | ||
| use crate::settings; | ||
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| #[test_case(CheckCode::SIM118, Path::new("SIM118.py"); "SIM118")] | ||
| fn checks(check_code: CheckCode, path: &Path) -> Result<()> { | ||
| let snapshot = format!("{}_{}", check_code.as_ref(), path.to_string_lossy()); | ||
| let mut checks = test_path( | ||
| Path::new("./resources/test/fixtures/flake8_simplify") | ||
| .join(path) | ||
| .as_path(), | ||
| &settings::Settings::for_rule(check_code), | ||
| true, | ||
| )?; | ||
| checks.sort_by_key(|check| check.location); | ||
| insta::assert_yaml_snapshot!(snapshot, checks); | ||
| Ok(()) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| use rustpython_ast::{Cmpop, Expr, ExprKind}; | ||
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| use crate::ast::types::Range; | ||
| use crate::autofix::Fix; | ||
| use crate::check_ast::Checker; | ||
| use crate::checks::{Check, CheckCode, CheckKind}; | ||
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| /// SIM118 | ||
| fn key_in_dict(checker: &mut Checker, left: &Expr, right: &Expr, range: Range) { | ||
| let ExprKind::Call { | ||
| func, | ||
| args, | ||
| keywords, | ||
| } = &right.node else { | ||
| return; | ||
| }; | ||
| if !(args.is_empty() && keywords.is_empty()) { | ||
| return; | ||
| } | ||
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| let ExprKind::Attribute { attr, value, .. } = &func.node else { | ||
| return; | ||
| }; | ||
| if attr != "keys" { | ||
| return; | ||
| } | ||
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| let mut check = Check::new( | ||
| CheckKind::KeyInDict(left.to_string(), value.to_string()), | ||
| range, | ||
| ); | ||
| if checker.patch(&CheckCode::SIM118) { | ||
| let content = right.to_string().replace(".keys()", ""); | ||
| check.amend(Fix::replacement( | ||
| content, | ||
| right.location, | ||
| right.end_location.unwrap(), | ||
| )); | ||
| } | ||
| checker.add_check(check); | ||
| } | ||
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| /// SIM118 in a for loop | ||
| pub fn key_in_dict_for(checker: &mut Checker, target: &Expr, iter: &Expr) { | ||
| key_in_dict( | ||
| checker, | ||
| target, | ||
| iter, | ||
| Range { | ||
| location: target.location, | ||
| end_location: iter.end_location.unwrap(), | ||
| }, | ||
| ); | ||
| } | ||
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| /// SIM118 in a comparison | ||
| pub fn key_in_dict_compare( | ||
| checker: &mut Checker, | ||
| expr: &Expr, | ||
| left: &Expr, | ||
| ops: &[Cmpop], | ||
| comparators: &[Expr], | ||
| ) { | ||
| if !matches!(ops[..], [Cmpop::In]) { | ||
| return; | ||
| } | ||
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| if comparators.len() != 1 { | ||
| return; | ||
| } | ||
| let right = comparators.first().unwrap(); | ||
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| key_in_dict(checker, left, right, Range::from_located(expr)); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| pub use key_in_dict::{key_in_dict_compare, key_in_dict_for}; | ||
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| mod key_in_dict; |
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