mirror of
https://github.com/swc-project/swc.git
synced 2024-12-23 05:32:09 +03:00
47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
// Loaded from https://deno.land/x/graphql_deno@v15.0.0/lib/validation/rules/NoUnusedFragmentsRule.js
|
|
|
|
|
|
import { GraphQLError } from '../../error/GraphQLError.js';
|
|
|
|
/**
|
|
* No unused fragments
|
|
*
|
|
* A GraphQL document is only valid if all fragment definitions are spread
|
|
* within operations, or spread within other fragments spread within operations.
|
|
*/
|
|
export function NoUnusedFragmentsRule(context) {
|
|
const operationDefs = [];
|
|
const fragmentDefs = [];
|
|
return {
|
|
OperationDefinition(node) {
|
|
operationDefs.push(node);
|
|
return false;
|
|
},
|
|
|
|
FragmentDefinition(node) {
|
|
fragmentDefs.push(node);
|
|
return false;
|
|
},
|
|
|
|
Document: {
|
|
leave() {
|
|
const fragmentNameUsed = Object.create(null);
|
|
|
|
for (const operation of operationDefs) {
|
|
for (const fragment of context.getRecursivelyReferencedFragments(operation)) {
|
|
fragmentNameUsed[fragment.name.value] = true;
|
|
}
|
|
}
|
|
|
|
for (const fragmentDef of fragmentDefs) {
|
|
const fragName = fragmentDef.name.value;
|
|
|
|
if (fragmentNameUsed[fragName] !== true) {
|
|
context.reportError(new GraphQLError(`Fragment "${fragName}" is never used.`, fragmentDef));
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
};
|
|
} |