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prefer-enum-initializers.ts
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prefer-enum-initializers.ts
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import { TSESTree } from '@typescript-eslint/experimental-utils';
import * as util from '../util';
export default util.createRule({
name: 'prefer-enum-initializers',
meta: {
type: 'suggestion',
docs: {
description: 'Prefer initializing each enums member value',
category: 'Best Practices',
recommended: false,
},
messages: {
defineInitializer:
"The value of the member '{{ name }}' should be explicitly defined",
},
schema: [],
},
defaultOptions: [],
create(context) {
const sourceCode = context.getSourceCode();
return {
TSEnumDeclaration(node: TSESTree.TSEnumDeclaration): void {
const { members } = node;
const violatingMembers = members.filter(member => {
return member.initializer == null;
});
for (const member of violatingMembers) {
context.report({
node: member,
messageId: 'defineInitializer',
data: {
name: sourceCode.getText(member),
},
});
}
},
};
},
});