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46 lines
1.2 KiB
46 lines
1.2 KiB
4 months ago
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/** @private */
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export function extendedTypeof(val) {
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if (val === null) {
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return 'null';
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}
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if (Array.isArray(val)) {
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return 'array';
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}
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return typeof val;
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}
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/** @private */
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export function isObject(val) {
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return extendedTypeof(val) === 'object';
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}
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/** @private */
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export function isAsyncIterable(val) {
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return typeof Object(val)[Symbol.asyncIterator] === 'function';
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}
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/** @private */
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export function isAsyncGenerator(val) {
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return (isObject(val) &&
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typeof Object(val)[Symbol.asyncIterator] === 'function' &&
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typeof val.return === 'function'
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// for lazy ones, we only need the return anyway
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// typeof val.throw === 'function' &&
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// typeof val.next === 'function'
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);
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}
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/** @private */
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export function areGraphQLErrors(obj) {
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return (Array.isArray(obj) &&
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// must be at least one error
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obj.length > 0 &&
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// error has at least a message
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obj.every((ob) => 'message' in ob));
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}
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/**
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* Limits the WebSocket close event reason to not exceed a length of one frame.
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* Reference: https://datatracker.ietf.org/doc/html/rfc6455#section-5.2.
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*
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* @private
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*/
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export function limitCloseReason(reason, whenTooLong) {
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return reason.length < 124 ? reason : whenTooLong;
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}
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