91 lines
3.7 KiB
Plaintext
91 lines
3.7 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const scope_manager_1 = require("@typescript-eslint/scope-manager");
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const utils_1 = require("@typescript-eslint/utils");
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const util_1 = require("../util");
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exports.default = (0, util_1.createRule)({
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name: 'no-empty-interface',
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Disallow the declaration of empty interfaces',
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recommended: 'stylistic',
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},
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fixable: 'code',
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hasSuggestions: true,
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messages: {
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noEmpty: 'An empty interface is equivalent to `{}`.',
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noEmptyWithSuper: 'An interface declaring no members is equivalent to its supertype.',
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},
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schema: [
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{
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type: 'object',
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additionalProperties: false,
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properties: {
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allowSingleExtends: {
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type: 'boolean',
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},
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},
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},
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],
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},
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defaultOptions: [
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{
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allowSingleExtends: false,
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},
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],
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create(context, [{ allowSingleExtends }]) {
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return {
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TSInterfaceDeclaration(node) {
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if (node.body.body.length !== 0) {
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// interface contains members --> Nothing to report
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return;
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}
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const extend = node.extends;
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if (extend.length === 0) {
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context.report({
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node: node.id,
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messageId: 'noEmpty',
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});
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}
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else if (extend.length === 1) {
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// interface extends exactly 1 interface --> Report depending on rule setting
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if (!allowSingleExtends) {
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const fix = (fixer) => {
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let typeParam = '';
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if (node.typeParameters) {
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typeParam = context.sourceCode.getText(node.typeParameters);
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}
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return fixer.replaceText(node, `type ${context.sourceCode.getText(node.id)}${typeParam} = ${context.sourceCode.getText(extend[0])}`);
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};
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const scope = context.sourceCode.getScope(node);
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const mergedWithClassDeclaration = scope.set
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.get(node.id.name)
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?.defs.some(def => def.node.type === utils_1.AST_NODE_TYPES.ClassDeclaration);
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const isInAmbientDeclaration = !!((0, util_1.isDefinitionFile)(context.filename) &&
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scope.type === scope_manager_1.ScopeType.tsModule &&
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scope.block.declare);
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const useAutoFix = !(isInAmbientDeclaration || mergedWithClassDeclaration);
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context.report({
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node: node.id,
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messageId: 'noEmptyWithSuper',
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...(useAutoFix
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? { fix }
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: !mergedWithClassDeclaration
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? {
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suggest: [
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{
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messageId: 'noEmptyWithSuper',
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fix,
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},
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],
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}
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: null),
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});
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}
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}
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},
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};
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},
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});
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//# sourceMappingURL=no-empty-interface.js.map |