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Sebastian Poxhofer
c32e2391a0
Refs #45216 The object counterpart to `prefer-coerce-array`: `x ?? {}` becomes `coerceObject(x)`. The rule flags a `??` whose default is a bare `{}` literal, so a populated default or an asserted `({} as Foo)` still passes; a `x ?? y ?? {}` chain maps onto `coerceObject(x, y)`. Every hit across `lib/` converted cleanly, so no disable comments were needed.
34 lines
924 B
TypeScript
34 lines
924 B
TypeScript
import { defineRule } from '@oxlint/plugins';
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/**
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* Flags `x ?? {}` in favour of `coerceObject(x)` from `lib/util/object.ts`.
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* A chain like `x ?? y ?? {}` maps onto the two-argument `coerceObject(x, y)`.
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*
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* Only a bare `{}` literal counts: `x ?? { a: 1 }` keeps a meaningful default,
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* and `x ?? ({} as Foo)` carries an assertion the helper cannot express.
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*/
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export default defineRule({
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meta: {
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type: 'suggestion',
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messages: {
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preferCoerceObject:
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'Use `coerceObject()` from `lib/util/object.ts` instead of `?? {}`.',
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},
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},
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createOnce(context) {
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return {
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LogicalExpression(node) {
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if (node.operator !== '??') {
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return;
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}
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if (
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node.right.type === 'ObjectExpression' &&
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node.right.properties.length === 0
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) {
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context.report({ node, messageId: 'preferCoerceObject' });
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}
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},
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};
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},
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});
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