no-duplicate-imports.js
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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const experimental_utils_1 = require("@typescript-eslint/experimental-utils");
const no_duplicate_imports_1 = __importDefault(require("eslint/lib/rules/no-duplicate-imports"));
const util = __importStar(require("../util"));
exports.default = util.createRule({
name: 'no-duplicate-imports',
meta: {
type: 'problem',
docs: {
description: 'Disallow duplicate imports',
category: 'Best Practices',
recommended: false,
extendsBaseRule: true,
},
schema: no_duplicate_imports_1.default.meta.schema,
messages: Object.assign(Object.assign({}, no_duplicate_imports_1.default.meta.messages), { importType: '{{module}} type import is duplicated', importTypeAs: '{{module}} type import is duplicated as type export', exportType: '{{module}} type export is duplicated', exportTypeAs: '{{module}} type export is duplicated as type import' }),
},
defaultOptions: [
{
includeExports: false,
},
],
create(context, [option]) {
const rules = no_duplicate_imports_1.default.create(context);
const includeExports = option.includeExports;
const typeMemberImports = new Set();
const typeDefaultImports = new Set();
const typeExports = new Set();
function report(messageId, node, module) {
context.report({
messageId,
node,
data: {
module,
},
});
}
function isStringLiteral(node) {
return (!!node &&
node.type === experimental_utils_1.AST_NODE_TYPES.Literal &&
typeof node.value === 'string');
}
function isAllMemberImport(node) {
return node.specifiers.every(specifier => specifier.type === experimental_utils_1.AST_NODE_TYPES.ImportSpecifier);
}
function checkTypeImport(node) {
if (isStringLiteral(node.source)) {
const value = node.source.value;
const isMemberImport = isAllMemberImport(node);
if (isMemberImport
? typeMemberImports.has(value)
: typeDefaultImports.has(value)) {
report('importType', node, value);
}
if (includeExports && typeExports.has(value)) {
report('importTypeAs', node, value);
}
if (isMemberImport) {
typeMemberImports.add(value);
}
else {
typeDefaultImports.add(value);
}
}
}
function checkTypeExport(node) {
if (isStringLiteral(node.source)) {
const value = node.source.value;
if (typeExports.has(value)) {
report('exportType', node, value);
}
if (typeMemberImports.has(value) || typeDefaultImports.has(value)) {
report('exportTypeAs', node, value);
}
typeExports.add(value);
}
}
return Object.assign(Object.assign({}, rules), { ImportDeclaration(node) {
if (node.importKind === 'type') {
checkTypeImport(node);
return;
}
rules.ImportDeclaration(node);
},
ExportNamedDeclaration(node) {
var _a;
if (includeExports && node.exportKind === 'type') {
checkTypeExport(node);
return;
}
(_a = rules.ExportNamedDeclaration) === null || _a === void 0 ? void 0 : _a.call(rules, node);
},
ExportAllDeclaration(node) {
var _a;
if (includeExports && node.exportKind === 'type') {
checkTypeExport(node);
return;
}
(_a = rules.ExportAllDeclaration) === null || _a === void 0 ? void 0 : _a.call(rules, node);
} });
},
});
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