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61 lines
1.5 KiB
61 lines
1.5 KiB
'use strict'; |
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Object.defineProperty(exports, '__esModule', { |
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value: true, |
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}); |
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exports.NoUnusedFragmentsRule = NoUnusedFragmentsRule; |
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var _GraphQLError = require('../../error/GraphQLError.js'); |
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/** |
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* No unused fragments |
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* |
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* A GraphQL document is only valid if all fragment definitions are spread |
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* within operations, or spread within other fragments spread within operations. |
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* |
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* See https://spec.graphql.org/draft/#sec-Fragments-Must-Be-Used |
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*/ |
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function NoUnusedFragmentsRule(context) { |
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const operationDefs = []; |
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const fragmentDefs = []; |
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return { |
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OperationDefinition(node) { |
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operationDefs.push(node); |
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return false; |
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}, |
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FragmentDefinition(node) { |
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fragmentDefs.push(node); |
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return false; |
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}, |
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Document: { |
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leave() { |
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const fragmentNameUsed = Object.create(null); |
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for (const operation of operationDefs) { |
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for (const fragment of context.getRecursivelyReferencedFragments( |
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operation, |
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)) { |
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fragmentNameUsed[fragment.name.value] = true; |
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} |
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} |
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for (const fragmentDef of fragmentDefs) { |
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const fragName = fragmentDef.name.value; |
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if (fragmentNameUsed[fragName] !== true) { |
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context.reportError( |
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new _GraphQLError.GraphQLError( |
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`Fragment "${fragName}" is never used.`, |
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{ |
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nodes: fragmentDef, |
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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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}, |
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}; |
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}
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