45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
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var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
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import verifyPlainObject from '../utils/verifyPlainObject';
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export function defaultMergeProps(stateProps, dispatchProps, ownProps) {
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return _extends({}, ownProps, stateProps, dispatchProps);
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}
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export function wrapMergePropsFunc(mergeProps) {
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return function initMergePropsProxy(dispatch, _ref) {
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var displayName = _ref.displayName,
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pure = _ref.pure,
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areMergedPropsEqual = _ref.areMergedPropsEqual;
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var hasRunOnce = false;
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var mergedProps = void 0;
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return function mergePropsProxy(stateProps, dispatchProps, ownProps) {
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var nextMergedProps = mergeProps(stateProps, dispatchProps, ownProps);
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if (hasRunOnce) {
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if (!pure || !areMergedPropsEqual(nextMergedProps, mergedProps)) mergedProps = nextMergedProps;
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} else {
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hasRunOnce = true;
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mergedProps = nextMergedProps;
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if (process.env.NODE_ENV !== 'production') verifyPlainObject(mergedProps, displayName, 'mergeProps');
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}
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return mergedProps;
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};
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};
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}
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export function whenMergePropsIsFunction(mergeProps) {
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return typeof mergeProps === 'function' ? wrapMergePropsFunc(mergeProps) : undefined;
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}
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export function whenMergePropsIsOmitted(mergeProps) {
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return !mergeProps ? function () {
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return defaultMergeProps;
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} : undefined;
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}
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export default [whenMergePropsIsFunction, whenMergePropsIsOmitted];
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