77 lines
1.9 KiB
Plaintext
77 lines
1.9 KiB
Plaintext
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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* @flow strict-local
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* @format
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* @emails oncall+relay
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*/
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// flowlint ambiguous-object-type:error
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'use strict';
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const RelayFeatureFlags = require('./RelayFeatureFlags');
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const isEmptyObject = require('./isEmptyObject');
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const stableCopy = require('./stableCopy');
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const {
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getDataIDsFromFragment,
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getVariablesFromFragment,
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getSelector,
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} = require('../store/RelayModernSelector');
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import type {ReaderFragment} from './ReaderNode';
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function getFragmentIdentifier(
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fragmentNode: ReaderFragment,
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fragmentRef: mixed,
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): string {
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const selector = getSelector(fragmentNode, fragmentRef);
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const fragmentOwnerIdentifier =
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selector == null
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? 'null'
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: selector.kind === 'SingularReaderSelector'
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? selector.owner.identifier
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: '[' +
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selector.selectors.map(sel => sel.owner.identifier).join(',') +
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']';
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const fragmentVariables = getVariablesFromFragment(fragmentNode, fragmentRef);
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const dataIDs = getDataIDsFromFragment(fragmentNode, fragmentRef);
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if (RelayFeatureFlags.ENABLE_GETFRAGMENTIDENTIFIER_OPTIMIZATION) {
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return (
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fragmentOwnerIdentifier +
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'/' +
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fragmentNode.name +
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'/' +
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(fragmentVariables == null || isEmptyObject(fragmentVariables)
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? '{}'
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: JSON.stringify(stableCopy(fragmentVariables))) +
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'/' +
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(typeof dataIDs === 'undefined'
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? 'missing'
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: dataIDs == null
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? 'null'
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: Array.isArray(dataIDs)
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? '[' + dataIDs.join(',') + ']'
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: dataIDs)
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);
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} else {
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return (
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fragmentOwnerIdentifier +
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'/' +
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fragmentNode.name +
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'/' +
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JSON.stringify(stableCopy(fragmentVariables)) +
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'/' +
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(JSON.stringify(dataIDs) ?? 'missing')
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);
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}
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}
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module.exports = getFragmentIdentifier;
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