27 lines
688 B
JavaScript
27 lines
688 B
JavaScript
import { GraphQLError } from '../../error/GraphQLError.mjs';
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/**
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* Known fragment names
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*
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* A GraphQL document is only valid if all `...Fragment` fragment spreads refer
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* to fragments defined in the same document.
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*
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* See https://spec.graphql.org/draft/#sec-Fragment-spread-target-defined
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*/
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export function KnownFragmentNamesRule(context) {
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return {
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FragmentSpread(node) {
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const fragmentName = node.name.value;
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const fragment = context.getFragment(fragmentName);
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if (!fragment) {
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context.reportError(
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new GraphQLError(`Unknown fragment "${fragmentName}".`, {
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nodes: node.name,
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}),
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);
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}
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},
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};
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}
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