chushihua

node_modules/babel-helper-vue-jsx-merge-props/index.js

@@ -0,0 +1,50 @@
+var nestRE = /^(attrs|props|on|nativeOn|class|style|hook)$/
+
+module.exports = function mergeJSXProps (objs) {
+  return objs.reduce(function (a, b) {
+    var aa, bb, key, nestedKey, temp
+    for (key in b) {
+      aa = a[key]
+      bb = b[key]
+      if (aa && nestRE.test(key)) {
+        // normalize class
+        if (key === 'class') {
+          if (typeof aa === 'string') {
+            temp = aa
+            a[key] = aa = {}
+            aa[temp] = true
+          }
+          if (typeof bb === 'string') {
+            temp = bb
+            b[key] = bb = {}
+            bb[temp] = true
+          }
+        }
+        if (key === 'on' || key === 'nativeOn' || key === 'hook') {
+          // merge functions
+          for (nestedKey in bb) {
+            aa[nestedKey] = mergeFn(aa[nestedKey], bb[nestedKey])
+          }
+        } else if (Array.isArray(aa)) {
+          a[key] = aa.concat(bb)
+        } else if (Array.isArray(bb)) {
+          a[key] = [aa].concat(bb)
+        } else {
+          for (nestedKey in bb) {
+            aa[nestedKey] = bb[nestedKey]
+          }
+        }
+      } else {
+        a[key] = b[key]
+      }
+    }
+    return a
+  }, {})
+}
+
+function mergeFn (a, b) {
+  return function () {
+    a && a.apply(this, arguments)
+    b && b.apply(this, arguments)
+  }
+}