1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.UniqueOperationTypesRule = UniqueOperationTypesRule;
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7 |
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8 | var _GraphQLError = require("../../error/GraphQLError.js");
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9 |
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10 |
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11 |
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12 |
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13 |
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14 |
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15 | function UniqueOperationTypesRule(context) {
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16 | var schema = context.getSchema();
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17 | var definedOperationTypes = Object.create(null);
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18 | var existingOperationTypes = schema ? {
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19 | query: schema.getQueryType(),
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20 | mutation: schema.getMutationType(),
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21 | subscription: schema.getSubscriptionType()
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22 | } : {};
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23 | return {
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24 | SchemaDefinition: checkOperationTypes,
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25 | SchemaExtension: checkOperationTypes
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26 | };
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27 |
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28 | function checkOperationTypes(node) {
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29 | var _node$operationTypes;
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30 |
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31 |
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32 | var operationTypesNodes = (_node$operationTypes = node.operationTypes) !== null && _node$operationTypes !== void 0 ? _node$operationTypes : [];
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33 |
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34 | for (var _i2 = 0; _i2 < operationTypesNodes.length; _i2++) {
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35 | var operationType = operationTypesNodes[_i2];
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36 | var operation = operationType.operation;
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37 | var alreadyDefinedOperationType = definedOperationTypes[operation];
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38 |
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39 | if (existingOperationTypes[operation]) {
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40 | context.reportError(new _GraphQLError.GraphQLError("Type for ".concat(operation, " already defined in the schema. It cannot be redefined."), operationType));
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41 | } else if (alreadyDefinedOperationType) {
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42 | context.reportError(new _GraphQLError.GraphQLError("There can be only one ".concat(operation, " type in schema."), [alreadyDefinedOperationType, operationType]));
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43 | } else {
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44 | definedOperationTypes[operation] = operationType;
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45 | }
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46 | }
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47 |
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48 | return false;
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49 | }
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50 | }
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