1 | import { GraphQLError } from "../../error/GraphQLError.mjs";
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9 | export function NoUnusedVariablesRule(context) {
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10 | var variableDefs = [];
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11 | return {
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12 | OperationDefinition: {
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13 | enter: function enter() {
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14 | variableDefs = [];
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15 | },
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16 | leave: function leave(operation) {
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17 | var variableNameUsed = Object.create(null);
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18 | var usages = context.getRecursiveVariableUsages(operation);
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19 |
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20 | for (var _i2 = 0; _i2 < usages.length; _i2++) {
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21 | var _ref2 = usages[_i2];
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22 | var node = _ref2.node;
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23 | variableNameUsed[node.name.value] = true;
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24 | }
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25 |
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26 | for (var _i4 = 0, _variableDefs2 = variableDefs; _i4 < _variableDefs2.length; _i4++) {
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27 | var variableDef = _variableDefs2[_i4];
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28 | var variableName = variableDef.variable.name.value;
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29 |
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30 | if (variableNameUsed[variableName] !== true) {
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31 | context.reportError(new GraphQLError(operation.name ? "Variable \"$".concat(variableName, "\" is never used in operation \"").concat(operation.name.value, "\".") : "Variable \"$".concat(variableName, "\" is never used."), variableDef));
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32 | }
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33 | }
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34 | }
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35 | },
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36 | VariableDefinition: function VariableDefinition(def) {
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37 | variableDefs.push(def);
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38 | }
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39 | };
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40 | }
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