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34 lines
944 B
34 lines
944 B
"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.UniqueFragmentNamesRule = UniqueFragmentNamesRule;
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var _GraphQLError = require("../../error/GraphQLError.js");
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/**
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* Unique fragment names
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*
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* A GraphQL document is only valid if all defined fragments have unique names.
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*/
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function UniqueFragmentNamesRule(context) {
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var knownFragmentNames = Object.create(null);
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return {
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OperationDefinition: function OperationDefinition() {
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return false;
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},
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FragmentDefinition: function FragmentDefinition(node) {
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var fragmentName = node.name.value;
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if (knownFragmentNames[fragmentName]) {
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context.reportError(new _GraphQLError.GraphQLError("There can be only one fragment named \"".concat(fragmentName, "\"."), [knownFragmentNames[fragmentName], node.name]));
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} else {
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knownFragmentNames[fragmentName] = node.name;
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}
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return false;
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}
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};
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}
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