44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
/**
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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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*
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* @format
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*/
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// flowlint ambiguous-object-type:error
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'use strict';
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var areEqual = require("fbjs/lib/areEqual");
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var invariant = require('invariant');
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var _require = require('../util/RelayConcreteNode'),
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SCALAR_FIELD = _require.SCALAR_FIELD;
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var _require2 = require('./RelayStoreUtils'),
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getHandleStorageKey = _require2.getHandleStorageKey;
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/**
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* @private
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*
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* Creates a clone of the supplied `handleField` by finding the original scalar
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* field (on which the handle was declared) among the sibling `selections`.
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*/
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function cloneRelayScalarHandleSourceField(handleField, selections, variables) {
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var sourceField = selections.find(function (source) {
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return source.kind === SCALAR_FIELD && source.name === handleField.name && source.alias === handleField.alias && areEqual(source.args, handleField.args);
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});
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!(sourceField && sourceField.kind === SCALAR_FIELD) ? process.env.NODE_ENV !== "production" ? invariant(false, 'cloneRelayScalarHandleSourceField: Expected a corresponding source field for ' + 'handle `%s`.', handleField.handle) : invariant(false) : void 0;
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var handleKey = getHandleStorageKey(handleField, variables);
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return {
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kind: 'ScalarField',
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alias: sourceField.alias,
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name: handleKey,
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storageKey: handleKey,
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args: null
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};
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}
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module.exports = cloneRelayScalarHandleSourceField; |