uni-app引入使用uView

yudao-ui-app/uni_modules/uview-ui/libs/luch-request/utils/clone.js

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+/* eslint-disable */
+var clone = (function() {
+  'use strict';
+
+  function _instanceof(obj, type) {
+    return type != null && obj instanceof type;
+  }
+
+  var nativeMap;
+  try {
+    nativeMap = Map;
+  } catch(_) {
+    // maybe a reference error because no `Map`. Give it a dummy value that no
+    // value will ever be an instanceof.
+    nativeMap = function() {};
+  }
+
+  var nativeSet;
+  try {
+    nativeSet = Set;
+  } catch(_) {
+    nativeSet = function() {};
+  }
+
+  var nativePromise;
+  try {
+    nativePromise = Promise;
+  } catch(_) {
+    nativePromise = function() {};
+  }
+
+  /**
+   * Clones (copies) an Object using deep copying.
+   *
+   * This function supports circular references by default, but if you are certain
+   * there are no circular references in your object, you can save some CPU time
+   * by calling clone(obj, false).
+   *
+   * Caution: if `circular` is false and `parent` contains circular references,
+   * your program may enter an infinite loop and crash.
+   *
+   * @param `parent` - the object to be cloned
+   * @param `circular` - set to true if the object to be cloned may contain
+   *    circular references. (optional - true by default)
+   * @param `depth` - set to a number if the object is only to be cloned to
+   *    a particular depth. (optional - defaults to Infinity)
+   * @param `prototype` - sets the prototype to be used when cloning an object.
+   *    (optional - defaults to parent prototype).
+   * @param `includeNonEnumerable` - set to true if the non-enumerable properties
+   *    should be cloned as well. Non-enumerable properties on the prototype
+   *    chain will be ignored. (optional - false by default)
+   */
+  function clone(parent, circular, depth, prototype, includeNonEnumerable) {
+    if (typeof circular === 'object') {
+      depth = circular.depth;
+      prototype = circular.prototype;
+      includeNonEnumerable = circular.includeNonEnumerable;
+      circular = circular.circular;
+    }
+    // maintain two arrays for circular references, where corresponding parents
+    // and children have the same index
+    var allParents = [];
+    var allChildren = [];
+
+    var useBuffer = typeof Buffer != 'undefined';
+
+    if (typeof circular == 'undefined')
+      circular = true;
+
+    if (typeof depth == 'undefined')
+      depth = Infinity;
+
+    // recurse this function so we don't reset allParents and allChildren
+    function _clone(parent, depth) {
+      // cloning null always returns null
+      if (parent === null)
+        return null;
+
+      if (depth === 0)
+        return parent;
+
+      var child;
+      var proto;
+      if (typeof parent != 'object') {
+        return parent;
+      }
+
+      if (_instanceof(parent, nativeMap)) {
+        child = new nativeMap();
+      } else if (_instanceof(parent, nativeSet)) {
+        child = new nativeSet();
+      } else if (_instanceof(parent, nativePromise)) {
+        child = new nativePromise(function (resolve, reject) {
+          parent.then(function(value) {
+            resolve(_clone(value, depth - 1));
+          }, function(err) {
+            reject(_clone(err, depth - 1));
+          });
+        });
+      } else if (clone.__isArray(parent)) {
+        child = [];
+      } else if (clone.__isRegExp(parent)) {
+        child = new RegExp(parent.source, __getRegExpFlags(parent));
+        if (parent.lastIndex) child.lastIndex = parent.lastIndex;
+      } else if (clone.__isDate(parent)) {
+        child = new Date(parent.getTime());
+      } else if (useBuffer && Buffer.isBuffer(parent)) {
+        if (Buffer.from) {
+          // Node.js >= 5.10.0
+          child = Buffer.from(parent);
+        } else {
+          // Older Node.js versions
+          child = new Buffer(parent.length);
+          parent.copy(child);
+        }
+        return child;
+      } else if (_instanceof(parent, Error)) {
+        child = Object.create(parent);
+      } else {
+        if (typeof prototype == 'undefined') {
+          proto = Object.getPrototypeOf(parent);
+          child = Object.create(proto);
+        }
+        else {
+          child = Object.create(prototype);
+          proto = prototype;
+        }
+      }
+
+      if (circular) {
+        var index = allParents.indexOf(parent);
+
+        if (index != -1) {
+          return allChildren[index];
+        }
+        allParents.push(parent);
+        allChildren.push(child);
+      }
+
+      if (_instanceof(parent, nativeMap)) {
+        parent.forEach(function(value, key) {
+          var keyChild = _clone(key, depth - 1);
+          var valueChild = _clone(value, depth - 1);
+          child.set(keyChild, valueChild);
+        });
+      }
+      if (_instanceof(parent, nativeSet)) {
+        parent.forEach(function(value) {
+          var entryChild = _clone(value, depth - 1);
+          child.add(entryChild);
+        });
+      }
+
+      for (var i in parent) {
+        var attrs = Object.getOwnPropertyDescriptor(parent, i);
+        if (attrs) {
+          child[i] = _clone(parent[i], depth - 1);
+        }
+
+        try {
+          var objProperty = Object.getOwnPropertyDescriptor(parent, i);
+          if (objProperty.set === 'undefined') {
+            // no setter defined. Skip cloning this property
+            continue;
+          }
+          child[i] = _clone(parent[i], depth - 1);
+        } catch(e){
+          if (e instanceof TypeError) {
+            // when in strict mode, TypeError will be thrown if child[i] property only has a getter
+            // we can't do anything about this, other than inform the user that this property cannot be set.
+            continue
+          } else if (e instanceof ReferenceError) {
+            //this may happen in non strict mode
+            continue
+          }
+        }
+
+      }
+
+      if (Object.getOwnPropertySymbols) {
+        var symbols = Object.getOwnPropertySymbols(parent);
+        for (var i = 0; i < symbols.length; i++) {
+          // Don't need to worry about cloning a symbol because it is a primitive,
+          // like a number or string.
+          var symbol = symbols[i];
+          var descriptor = Object.getOwnPropertyDescriptor(parent, symbol);
+          if (descriptor && !descriptor.enumerable && !includeNonEnumerable) {
+            continue;
+          }
+          child[symbol] = _clone(parent[symbol], depth - 1);
+          Object.defineProperty(child, symbol, descriptor);
+        }
+      }
+
+      if (includeNonEnumerable) {
+        var allPropertyNames = Object.getOwnPropertyNames(parent);
+        for (var i = 0; i < allPropertyNames.length; i++) {
+          var propertyName = allPropertyNames[i];
+          var descriptor = Object.getOwnPropertyDescriptor(parent, propertyName);
+          if (descriptor && descriptor.enumerable) {
+            continue;
+          }
+          child[propertyName] = _clone(parent[propertyName], depth - 1);
+          Object.defineProperty(child, propertyName, descriptor);
+        }
+      }
+
+      return child;
+    }
+
+    return _clone(parent, depth);
+  }
+
+  /**
+   * Simple flat clone using prototype, accepts only objects, usefull for property
+   * override on FLAT configuration object (no nested props).
+   *
+   * USE WITH CAUTION! This may not behave as you wish if you do not know how this
+   * works.
+   */
+  clone.clonePrototype = function clonePrototype(parent) {
+    if (parent === null)
+      return null;
+
+    var c = function () {};
+    c.prototype = parent;
+    return new c();
+  };
+
+// private utility functions
+
+  function __objToStr(o) {
+    return Object.prototype.toString.call(o);
+  }
+  clone.__objToStr = __objToStr;
+
+  function __isDate(o) {
+    return typeof o === 'object' && __objToStr(o) === '[object Date]';
+  }
+  clone.__isDate = __isDate;
+
+  function __isArray(o) {
+    return typeof o === 'object' && __objToStr(o) === '[object Array]';
+  }
+  clone.__isArray = __isArray;
+
+  function __isRegExp(o) {
+    return typeof o === 'object' && __objToStr(o) === '[object RegExp]';
+  }
+  clone.__isRegExp = __isRegExp;
+
+  function __getRegExpFlags(re) {
+    var flags = '';
+    if (re.global) flags += 'g';
+    if (re.ignoreCase) flags += 'i';
+    if (re.multiline) flags += 'm';
+    return flags;
+  }
+  clone.__getRegExpFlags = __getRegExpFlags;
+
+  return clone;
+})();
+
+export default clone