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fix(eslint-plugin): [no-shadow] fix static class generics for class expressions #7724

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Merged
merged 4 commits into from
Oct 11, 2023
Merged

fix(eslint-plugin): [no-shadow] fix static class generics for class expressions #7724

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6e02253
Add test for factory generating class functionn with generic type
peanutenthusiast Sep 19, 2023
34d5905
Rename isGenericOfClassDecl to isGenericOfClass, check for class expr…
peanutenthusiast Oct 5, 2023
08feeaa
Apply eslint fixer on no shadow test class expression test case
peanutenthusiast Oct 5, 2023
0cdc6d5
Apply yarn lint-fix
peanutenthusiast Oct 10, 2023
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11 changes: 6 additions & 5 deletions packages/eslint-plugin/src/rules/no-shadow.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -199,7 +199,7 @@ export default util.createRule<Options, MessageIds>({
return methodDefinition.static;
}

function isGenericOfClassDecl(variable: TSESLint.Scope.Variable): boolean {
function isGenericOfClass(variable: TSESLint.Scope.Variable): boolean {
if (!('isTypeVariable' in variable)) {
// this shouldn't happen...
return false;
Expand All @@ -224,16 +224,17 @@ export default util.createRule<Options, MessageIds>({
return false;
}
const classDecl = typeParameterDecl.parent;
return classDecl?.type === AST_NODE_TYPES.ClassDeclaration;
return (
classDecl?.type === AST_NODE_TYPES.ClassDeclaration ||
classDecl?.type === AST_NODE_TYPES.ClassExpression
);
}

function isGenericOfAStaticMethodShadow(
variable: TSESLint.Scope.Variable,
shadowed: TSESLint.Scope.Variable,
): boolean {
return (
isGenericOfStaticMethod(variable) && isGenericOfClassDecl(shadowed)
);
return isGenericOfStaticMethod(variable) && isGenericOfClass(shadowed);
}

function isImportDeclaration(
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11 changes: 11 additions & 0 deletions packages/eslint-plugin/tests/rules/no-shadow/no-shadow.test.ts
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Expand Up @@ -220,6 +220,17 @@ export class Wrapper<Wrapped> {
static create<Wrapped>(wrapped: Wrapped) {
return new Wrapper<Wrapped>(wrapped);
}
}
`,
`
function makeA() {
return class A<T> {
constructor(public value: T) {}

static make<T>(value: T) {
return new A<T>(value);
}
};
}
`,
{
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