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import { GraphQLError } from "../../error/GraphQLError.mjs";
/**
* 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) {
var operationDefs = [];
var fragmentDefs = [];
return {
OperationDefinition: function OperationDefinition(node) {
operationDefs.push(node);
return false;
},
FragmentDefinition: function FragmentDefinition(node) {
fragmentDefs.push(node);
return false;
},
Document: {
leave: function leave() {
var fragmentNameUsed = Object.create(null);
for (var _i2 = 0; _i2 < operationDefs.length; _i2++) {
var operation = operationDefs[_i2];
for (var _i4 = 0, _context$getRecursive2 = context.getRecursivelyReferencedFragments(operation); _i4 < _context$getRecursive2.length; _i4++) {
var fragment = _context$getRecursive2[_i4];
fragmentNameUsed[fragment.name.value] = true;
}
}
for (var _i6 = 0; _i6 < fragmentDefs.length; _i6++) {
var fragmentDef = fragmentDefs[_i6];
var fragName = fragmentDef.name.value;
if (fragmentNameUsed[fragName] !== true) {
context.reportError(new GraphQLError("Fragment \"".concat(fragName, "\" is never used."), fragmentDef));
}
}
}
}
};
}
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