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https://github.com/danbulant/oxc
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feat(linter): eslint/no-with (#2741)
Relates to #479 Rule detail: https://eslint.org/docs/latest/rules/no-with
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3 changed files with 68 additions and 0 deletions
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@ -103,6 +103,7 @@ mod eslint {
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pub mod no_useless_rename;
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pub mod no_var;
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pub mod no_void;
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pub mod no_with;
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pub mod require_yield;
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pub mod use_isnan;
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pub mod valid_typeof;
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@ -417,6 +418,7 @@ oxc_macros::declare_all_lint_rules! {
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eslint::no_useless_rename,
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eslint::no_var,
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eslint::no_void,
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eslint::no_with,
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eslint::require_yield,
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eslint::use_isnan,
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eslint::valid_typeof,
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56
crates/oxc_linter/src/rules/eslint/no_with.rs
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56
crates/oxc_linter/src/rules/eslint/no_with.rs
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@ -0,0 +1,56 @@
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use oxc_ast::AstKind;
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use oxc_diagnostics::{
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miette::{self, Diagnostic},
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thiserror::Error,
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};
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use oxc_macros::declare_oxc_lint;
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use oxc_span::Span;
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use crate::{context::LintContext, rule::Rule, AstNode};
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#[derive(Debug, Error, Diagnostic)]
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#[error("eslint(no-with): Unexpected use of `with` statement.")]
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#[diagnostic(severity(warning), help("Do not use the `with` statement."))]
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struct NoWithDiagnostic(#[label] pub Span);
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#[derive(Debug, Default, Clone)]
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pub struct NoWith;
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declare_oxc_lint!(
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/// ### What it does
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/// Disallow `with` statements
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///
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/// ### Why is this bad?
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/// The with statement is potentially problematic because it adds members of an object to the current scope, making it impossible to tell what a variable inside the block actually refers to.
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///
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/// ### Example
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/// ```javascript
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/// with (point) {
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/// r = Math.sqrt(x * x + y * y); // is r a member of point?
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/// }
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/// ```
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NoWith,
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correctness
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);
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impl Rule for NoWith {
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fn run<'a>(&self, node: &AstNode<'a>, ctx: &LintContext<'a>) {
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if let AstKind::WithStatement(with_statement) = node.kind() {
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ctx.diagnostic(NoWithDiagnostic(Span::new(
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with_statement.span.start,
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with_statement.span.start + 4,
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)));
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}
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}
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}
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#[test]
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fn test() {
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use crate::tester::Tester;
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let pass = vec!["foo.bar()"];
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let fail = vec!["with(foo) { bar() }"];
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Tester::new(NoWith::NAME, pass, fail).test_and_snapshot();
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}
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10
crates/oxc_linter/src/snapshots/no_with.snap
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10
crates/oxc_linter/src/snapshots/no_with.snap
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@ -0,0 +1,10 @@
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---
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source: crates/oxc_linter/src/tester.rs
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expression: no_with
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---
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⚠ eslint(no-with): Unexpected use of `with` statement.
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╭─[no_with.tsx:1:1]
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1 │ with(foo) { bar() }
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· ────
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╰────
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help: Do not use the `with` statement.
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