Sha256: 872b834b5bc69f9bd9d26dc51dcd0b9992a23dfe5bcf0f22c206421f694220a3
Contents?: true
Size: 883 Bytes
Versions: 26
Compression:
Stored size: 883 Bytes
Contents
import { GraphQLError } from '../../error/GraphQLError.mjs';
/**
* Unique fragment names
*
* A GraphQL document is only valid if all defined fragments have unique names.
*
* See https://spec.graphql.org/draft/#sec-Fragment-Name-Uniqueness
*/
export function UniqueFragmentNamesRule(context) {
const knownFragmentNames = Object.create(null);
return {
OperationDefinition: () => false,
FragmentDefinition(node) {
const fragmentName = node.name.value;
if (knownFragmentNames[fragmentName]) {
context.reportError(
new GraphQLError(
`There can be only one fragment named "${fragmentName}".`,
{
nodes: [knownFragmentNames[fragmentName], node.name],
},
),
);
} else {
knownFragmentNames[fragmentName] = node.name;
}
return false;
},
};
}
Version data entries
26 entries across 26 versions & 1 rubygems