45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.assertValidName = assertValidName;
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exports.isValidNameError = isValidNameError;
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var _GraphQLError = require("../error/GraphQLError");
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var _invariant = _interopRequireDefault(require("../jsutils/invariant"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var NAME_RX = /^[_a-zA-Z][_a-zA-Z0-9]*$/;
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/**
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* Upholds the spec rules about naming.
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*/
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function assertValidName(name) {
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var error = isValidNameError(name);
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if (error) {
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throw error;
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}
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return name;
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}
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/**
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* Returns an Error if a name is invalid.
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*/
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function isValidNameError(name, node) {
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!(typeof name === 'string') ? (0, _invariant.default)(0, 'Expected string') : void 0;
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if (name.length > 1 && name[0] === '_' && name[1] === '_') {
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return new _GraphQLError.GraphQLError("Name \"".concat(name, "\" must not begin with \"__\", which is reserved by GraphQL introspection."), node);
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}
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if (!NAME_RX.test(name)) {
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return new _GraphQLError.GraphQLError("Names must match /^[_a-zA-Z][_a-zA-Z0-9]*$/ but \"".concat(name, "\" does not."), node);
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}
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}
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