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.duplicateDirectiveMessage = duplicateDirectiveMessage;
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exports.UniqueDirectivesPerLocation = UniqueDirectivesPerLocation;
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var _GraphQLError = require("../../error/GraphQLError");
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/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* strict
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*/
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function duplicateDirectiveMessage(directiveName) {
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return "The directive \"".concat(directiveName, "\" can only be used once at ") + 'this location.';
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}
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/**
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* Unique directive names per location
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*
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* A GraphQL document is only valid if all directives at a given location
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* are uniquely named.
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*/
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function UniqueDirectivesPerLocation(context) {
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return {
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// Many different AST nodes may contain directives. Rather than listing
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// them all, just listen for entering any node, and check to see if it
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// defines any directives.
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enter: function enter(node) {
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// Flow can't refine that node.directives will only contain directives,
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var directives = node.directives;
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if (directives) {
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var knownDirectives = Object.create(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 = directives[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var directive = _step.value;
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var directiveName = directive.name.value;
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if (knownDirectives[directiveName]) {
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context.reportError(new _GraphQLError.GraphQLError(duplicateDirectiveMessage(directiveName), [knownDirectives[directiveName], directive]));
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} else {
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knownDirectives[directiveName] = directive;
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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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};
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} |