Initial commit

node_modules/react-redux/src/connect/mergeProps.js

@@ -0,0 +1,49 @@
+import verifyPlainObject from '../utils/verifyPlainObject'
+
+export function defaultMergeProps(stateProps, dispatchProps, ownProps) {
+  return { ...ownProps, ...stateProps, ...dispatchProps }
+}
+
+export function wrapMergePropsFunc(mergeProps) {
+  return function initMergePropsProxy(
+    dispatch, { displayName, pure, areMergedPropsEqual }
+  ) {
+    let hasRunOnce = false
+    let mergedProps
+
+    return function mergePropsProxy(stateProps, dispatchProps, ownProps) {
+      const nextMergedProps = mergeProps(stateProps, dispatchProps, ownProps)
+
+      if (hasRunOnce) {
+        if (!pure || !areMergedPropsEqual(nextMergedProps, mergedProps))
+          mergedProps = nextMergedProps
+
+      } else {
+        hasRunOnce = true
+        mergedProps = nextMergedProps
+
+        if (process.env.NODE_ENV !== 'production')
+          verifyPlainObject(mergedProps, displayName, 'mergeProps')
+      }
+
+      return mergedProps
+    }
+  }
+}
+
+export function whenMergePropsIsFunction(mergeProps) {
+  return (typeof mergeProps === 'function')
+    ? wrapMergePropsFunc(mergeProps)
+    : undefined
+}
+
+export function whenMergePropsIsOmitted(mergeProps) {
+  return (!mergeProps)
+    ? () => defaultMergeProps
+    : undefined
+}
+
+export default [
+  whenMergePropsIsFunction,
+  whenMergePropsIsOmitted
+]