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.UniqueVariableNamesRule = UniqueVariableNamesRule;
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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 UniqueVariableNamesRule(context) {
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16 | var knownVariableNames = Object.create(null);
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17 | return {
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18 | OperationDefinition: function OperationDefinition() {
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19 | knownVariableNames = Object.create(null);
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20 | },
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21 | VariableDefinition: function VariableDefinition(node) {
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22 | var variableName = node.variable.name.value;
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23 |
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24 | if (knownVariableNames[variableName]) {
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25 | context.reportError(new _GraphQLError.GraphQLError("There can be only one variable named \"$".concat(variableName, "\"."), [knownVariableNames[variableName], node.variable.name]));
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26 | } else {
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27 | knownVariableNames[variableName] = node.variable.name;
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28 | }
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29 | }
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30 | };
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31 | }
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