@graphql-tools/graphql
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Fork of GraphQL.js
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.UniqueArgumentNamesRule = void 0;
const groupBy_js_1 = require("../../jsutils/groupBy.js");
const GraphQLError_js_1 = require("../../error/GraphQLError.js");
/**
* Unique argument names
*
* A GraphQL field or directive is only valid if all supplied arguments are
* uniquely named.
*
* See https://spec.graphql.org/draft/#sec-Argument-Names
*/
function UniqueArgumentNamesRule(context) {
return {
Field: checkArgUniqueness,
Directive: checkArgUniqueness,
};
function checkArgUniqueness(parentNode) {
var _a;
// FIXME: https://github.com/graphql/graphql-js/issues/2203
/* c8 ignore next */
const argumentNodes = (_a = parentNode.arguments) !== null && _a !== void 0 ? _a : [];
const seenArgs = (0, groupBy_js_1.groupBy)(argumentNodes, arg => arg.name.value);
for (const [argName, argNodes] of seenArgs) {
if (argNodes.length > 1) {
context.reportError(new GraphQLError_js_1.GraphQLError(`There can be only one argument named "${argName}".`, {
nodes: argNodes.map(node => node.name),
}));
}
}
}
}
exports.UniqueArgumentNamesRule = UniqueArgumentNamesRule;