no-anonymous-default-export.js
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'use strict';
var _docsUrl = require('../docsUrl');
var _docsUrl2 = _interopRequireDefault(_docsUrl);
var _has = require('has');
var _has2 = _interopRequireDefault(_has);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* @fileoverview Rule to disallow anonymous default exports.
* @author Duncan Beevers
*/
const defs = {
ArrayExpression: {
option: 'allowArray',
description: 'If `false`, will report default export of an array',
message: 'Assign array to a variable before exporting as module default'
},
ArrowFunctionExpression: {
option: 'allowArrowFunction',
description: 'If `false`, will report default export of an arrow function',
message: 'Assign arrow function to a variable before exporting as module default'
},
CallExpression: {
option: 'allowCallExpression',
description: 'If `false`, will report default export of a function call',
message: 'Assign call result to a variable before exporting as module default',
default: true
},
ClassDeclaration: {
option: 'allowAnonymousClass',
description: 'If `false`, will report default export of an anonymous class',
message: 'Unexpected default export of anonymous class',
forbid: node => !node.declaration.id
},
FunctionDeclaration: {
option: 'allowAnonymousFunction',
description: 'If `false`, will report default export of an anonymous function',
message: 'Unexpected default export of anonymous function',
forbid: node => !node.declaration.id
},
Literal: {
option: 'allowLiteral',
description: 'If `false`, will report default export of a literal',
message: 'Assign literal to a variable before exporting as module default'
},
ObjectExpression: {
option: 'allowObject',
description: 'If `false`, will report default export of an object expression',
message: 'Assign object to a variable before exporting as module default'
},
TemplateLiteral: {
option: 'allowLiteral',
description: 'If `false`, will report default export of a literal',
message: 'Assign literal to a variable before exporting as module default'
}
};
const schemaProperties = Object.keys(defs).map(key => defs[key]).reduce((acc, def) => {
acc[def.option] = {
description: def.description,
type: 'boolean'
};
return acc;
}, {});
const defaults = Object.keys(defs).map(key => defs[key]).reduce((acc, def) => {
acc[def.option] = (0, _has2.default)(def, 'default') ? def.default : false;
return acc;
}, {});
module.exports = {
meta: {
docs: {
url: (0, _docsUrl2.default)('no-anonymous-default-export')
},
schema: [{
type: 'object',
properties: schemaProperties,
'additionalProperties': false
}]
},
create: function (context) {
const options = Object.assign({}, defaults, context.options[0]);
return {
'ExportDefaultDeclaration': node => {
const def = defs[node.declaration.type];
// Recognized node type and allowed by configuration,
// and has no forbid check, or forbid check return value is truthy
if (def && !options[def.option] && (!def.forbid || def.forbid(node))) {
context.report({ node, message: def.message });
}
}
};
}
};
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