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59 changes: 53 additions & 6 deletions crates/oxc_linter/src/rules/eslint/no_class_assign.rs
Original file line number Diff line number Diff line change
Expand Up @@ -17,17 +17,64 @@ pub struct NoClassAssign;

declare_oxc_lint!(
/// ### What it does
///
/// Disallow reassigning class variables.
///
/// ### Why is this bad?
/// `ClassDeclaration` creates a variable that can be re-assigned,
/// but the re-assignment is a mistake in most cases.
///
/// ### Example
/// `ClassDeclaration` creates a variable that can be re-assigned, but the re-assignment is a
/// mistake in most cases.
///
/// ### Examples
///
/// Examples of **incorrect** code for this rule:
/// ```javascript
/// class A { }
/// A = 0;
/// ```
///
/// ```javascript
/// A = 0;
/// class A { }
/// ```
///
/// ```javascript
/// class A {
/// b() {
/// A = 0;
/// }
/// }
/// ```
///
/// ```javascript
/// let A = class A {
/// b() {
/// A = 0;
/// // `let A` is shadowed by the class name.
/// }
/// }
/// ```
///
/// Examples of **correct** code for this rule:
/// ```javascript
/// let A = class A { }
/// A = 0; // A is a variable.
/// ```
///
/// ```javascript
/// let A = class {
/// b() {
/// A = 0; // A is a variable.
/// }
/// }
/// ```
///
/// ```javascript
/// class A {}
/// A = 123;
/// let a = new A() // Error
/// class A {
/// b(A) {
/// A = 0; // A is a parameter.
/// }
/// }
/// ```
NoClassAssign,
eslint,
Expand Down