56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
import { GraphQLError } from '../../error/GraphQLError';
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export function undefinedVarMessage(varName, opName) {
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return opName ? "Variable \"$".concat(varName, "\" is not defined by operation \"").concat(opName, "\".") : "Variable \"$".concat(varName, "\" is not defined.");
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}
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/**
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* No undefined variables
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*
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* A GraphQL operation is only valid if all variables encountered, both directly
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* and via fragment spreads, are defined by that operation.
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*/
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export function NoUndefinedVariables(context) {
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var variableNameDefined = Object.create(null);
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return {
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OperationDefinition: {
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enter: function enter() {
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variableNameDefined = Object.create(null);
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},
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leave: function leave(operation) {
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var usages = context.getRecursiveVariableUsages(operation);
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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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var varName = node.name.value;
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if (variableNameDefined[varName] !== true) {
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context.reportError(new GraphQLError(undefinedVarMessage(varName, operation.name && operation.name.value), [node, operation]));
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}
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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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}
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},
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VariableDefinition: function VariableDefinition(node) {
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variableNameDefined[node.variable.name.value] = true;
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}
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};
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}
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