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fix(eslint-plugin): [unified-signatures] no parameters function #6940

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merged 3 commits into from Apr 24, 2023
Merged

fix(eslint-plugin): [unified-signatures] no parameters function #6940

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0e31dbe
fix: [unified-signatures] no parameters function
u-abyss Apr 20, 2023
47286f7
change: [unified-signatures] check every b.params[i]
u-abyss Apr 22, 2023
ad154ff
quick lil refactor
JoshuaKGoldberg Apr 24, 2023
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3 changes: 3 additions & 0 deletions packages/eslint-plugin/src/rules/unified-signatures.ts
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Expand Up @@ -213,6 +213,9 @@ export default util.createRule<Options, MessageIds>({
b.typeParameters !== undefined ? b.typeParameters.params : undefined;

if (ignoreDifferentlyNamedParameters) {
if (b.params.length === 0) {
return false;
}
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You need to check that every b.params[i] is defined. Test case

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@Josh-Cena
I fixed it in 47286f7

for (let i = 0; i < a.params.length; i += 1) {
if (
a.params[i].type === b.params[i].type &&
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15 changes: 15 additions & 0 deletions packages/eslint-plugin/tests/rules/unified-signatures.test.ts
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Expand Up @@ -177,6 +177,21 @@ function f(v: number, u?: string): void {}
},
{
code: `
function f(v: boolean): number;
function f(): string;
`,
options: [{ ignoreDifferentlyNamedParameters: true }],
},
{
code: `
function f(v: number, u?: string): void {}
function f(v: number): void;
function f(): string;
`,
options: [{ ignoreDifferentlyNamedParameters: true }],
},
{
code: `
function f(a: boolean, ...c: number[]): void;
function f(a: boolean, ...d: string[]): void;
function f(a: boolean, ...c: (number | string)[]): void {}
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