73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
"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.unusedVariableMessage = unusedVariableMessage;
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exports.NoUnusedVariables = NoUnusedVariables;
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var _GraphQLError = require("../../error/GraphQLError");
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function unusedVariableMessage(varName, opName) {
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return opName ? "Variable \"$".concat(varName, "\" is never used in operation \"").concat(opName, "\".") : "Variable \"$".concat(varName, "\" is never used.");
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}
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/**
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* No unused variables
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*
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* A GraphQL operation is only valid if all variables defined by an operation
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* are used, either directly or within a spread fragment.
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*/
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function NoUnusedVariables(context) {
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var variableDefs = [];
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return {
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OperationDefinition: {
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enter: function enter() {
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variableDefs = [];
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},
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leave: function leave(operation) {
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var variableNameUsed = Object.create(null);
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var usages = context.getRecursiveVariableUsages(operation);
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var opName = operation.name ? operation.name.value : null;
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = usages[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var _ref2 = _step.value;
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var node = _ref2.node;
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variableNameUsed[node.name.value] = true;
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return != null) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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for (var _i = 0, _variableDefs = variableDefs; _i < _variableDefs.length; _i++) {
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var variableDef = _variableDefs[_i];
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var variableName = variableDef.variable.name.value;
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if (variableNameUsed[variableName] !== true) {
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context.reportError(new _GraphQLError.GraphQLError(unusedVariableMessage(variableName, opName), variableDef));
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}
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}
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}
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},
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VariableDefinition: function VariableDefinition(def) {
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variableDefs.push(def);
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}
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};
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}
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