@microsoft/dynamicproto-js - npm Package Compare versions

Comparing version 2.0.2 to 2.0.3

dist-es5/DynamicProto.js

 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 var _a;
-import { getGlobal, objHasOwnProperty, throwTypeError } from "@nevware21/ts-utils";
+import { getGlobal, objCreate, objHasOwnProperty, throwTypeError } from "@nevware21/ts-utils";
 ;
@@ -178,3 +178,3 @@ var UNDEFINED = "undefined";
 function _isDynamicCandidate(target, funcName, skipOwn) {
-    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
 }
@@ -197,3 +197,3 @@ /**
     // Get the base proto
-    var instFuncs = {};
+    var instFuncs = objCreate(null);
     // Save any existing instance functions
@@ -244,3 +244,3 @@ _forEachProp(thisTarget, function (name) {
     // Start creating a new baseFuncs by creating proxies for the instance functions (as they may get replaced)
-    var baseFuncs = {};
+    var baseFuncs = objCreate(null);
     _forEachProp(instFuncs, function (name) {
@@ -279,4 +279,4 @@ // Create an instance callback for passing the base function to the caller
     if (target && objHasOwnProperty(proto, DynClassName)) {
-        var instFuncTable = target[DynInstFuncTable] || {};
-        instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+        var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+        instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
         if (!instFunc) {
@@ -359,20 +359,24 @@ // Avoid stack overflow from recursive calling the same function
     if (!_isObjectOrArrayPrototype(proto)) {
-        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-        var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {}); // fetch and assign if as it may not exist yet
-        // Set whether we are allow to lookup instances, if someone has set to false then do not re-enable
-        if (instFuncTable[DynAllowInstChkTag] !== false) {
-            instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+        if (!_isObjectOrArrayPrototype(instFuncTable)) {
+            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null)); // fetch and assign if as it may not exist yet
+            // Set whether we are allow to lookup instances, if someone has set to false then do not re-enable
+            if (instFuncTable[DynAllowInstChkTag] !== false) {
+                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            }
+            if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                _forEachProp(target, function (name) {
+                    // Only add overridden functions
+                    if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                        // Save the instance Function to the lookup table and remove it from the instance as it's not a dynamic proto function
+                        instFuncs_1[name] = target[name];
+                        delete target[name];
+                        // Add a dynamic proto if one doesn't exist or if a prototype function exists and it's not a dynamic one
+                        if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                            proto[name] = _createDynamicPrototype(proto, name);
+                        }
+                    }
+                });
+            }
         }
-        _forEachProp(target, function (name) {
-            // Only add overridden functions
-            if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                // Save the instance Function to the lookup table and remove it from the instance as it's not a dynamic proto function
-                instFuncs_1[name] = target[name];
-                delete target[name];
-                // Add a dynamic proto if one doesn't exist or if a prototype function exists and it's not a dynamic one
-                if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                    proto[name] = _createDynamicPrototype(proto, name);
-                }
-            }
-        });
     }
@@ -379,0 +383,0 @@ }

dist/es5/amd/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
@@ -7,8 +7,15 @@ */
 
+    var UNDEF_VALUE = undefined;
+    var NULL_VALUE = null;
+    var EMPTY = "";
+    var FUNCTION = "function";
+    var NUMBER = "number";
+    var OBJECT = "object";
     var PROTOTYPE = "prototype";
     var UNDEFINED = "undefined";
+    var CALL = "call";
     var ObjClass = Object;
     var ObjProto = ObjClass[PROTOTYPE];
 
-    function _safeGet(cb, defValue) {
+    function safeGet(cb, defValue) {
         var result = defValue;
@@ -23,4 +30,21 @@ try {
 
+    function _createIs(theType) {
+        return function (value) {
+            return typeof value === theType;
+        };
+    }
+    function _createObjIs(theName) {
+        var theType = "[object " + theName + "]";
+        return function (value) {
+            return !!(value && objToString(value) === theType);
+        };
+    }
+    function objToString(value) {
+        return ObjProto.toString[CALL](value);
+    }
+    var isNumber = ( _createIs(NUMBER));
+    var isError = ( _createObjIs("Error"));
+
     function objHasOwnProperty(obj, prop) {
-        return obj && ObjProto.hasOwnProperty.call(obj, prop);
+        return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
     }
@@ -58,2 +82,18 @@
 
+    function dumpObj(object, format) {
+        var propertyValueDump = EMPTY;
+        if (isError(object)) {
+            propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+        }
+        else {
+            try {
+                propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+            }
+            catch (e) {
+                propertyValueDump = " - " + dumpObj(e, format);
+            }
+        }
+        return objToString(object) + ": " + propertyValueDump;
+    }
+
     var objDefineProp = ObjClass["defineProperty"];
@@ -64,3 +104,3 @@
         _globalLazyTestHooks = _getGlobalConfig();
-        _fetchLazyTestHooks = null;
+        _fetchLazyTestHooks = NULL_VALUE;
     };
@@ -92,4 +132,4 @@ function getLazy(cb) {
 
-    function _lazySafeGet(cb, defValue) {
-        return getLazy(function () { return _safeGet(cb, defValue); });
+    function safeGetLazy(cb, defValue) {
+        return getLazy(function () { return safeGet(cb, defValue); });
     }
@@ -99,6 +139,20 @@
     function getGlobal(useCached) {
-        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
         return _cachedGlobal.v;
     }
 
+    var objCreate = ObjClass["create"] || polyObjCreate;
+    function polyObjCreate(obj) {
+        if (!obj) {
+            return {};
+        }
+        var type = typeof obj;
+        if (type !== OBJECT && type !== FUNCTION) {
+            throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+        }
+        function tempFunc() { }
+        tempFunc[PROTOTYPE] = obj;
+        return new tempFunc();
+    }
+
     var _a;
@@ -174,3 +228,3 @@ var Constructor = 'constructor';
     function _isDynamicCandidate(target, funcName, skipOwn) {
-        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
     }
@@ -181,3 +235,3 @@ function _throwTypeError(message) {
     function _getInstanceFuncs(thisTarget) {
-        var instFuncs = {};
+        var instFuncs = objCreate(null);
         _forEachProp(thisTarget, function (name) {
@@ -211,3 +265,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
         }
-        var baseFuncs = {};
+        var baseFuncs = objCreate(null);
         _forEachProp(instFuncs, function (name) {
@@ -232,4 +286,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
         if (target && objHasOwnProperty(proto, DynClassName)) {
-            var instFuncTable = target[DynInstFuncTable] || {};
-            instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+            var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+            instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
             if (!instFunc) {
@@ -284,16 +338,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
         if (!_isObjectOrArrayPrototype(proto)) {
-            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-            if (instFuncTable[DynAllowInstChkTag] !== false) {
-                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+            if (!_isObjectOrArrayPrototype(instFuncTable)) {
+                var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+                if (instFuncTable[DynAllowInstChkTag] !== false) {
+                    instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+                }
+                if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                    _forEachProp(target, function (name) {
+                        if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                            instFuncs_1[name] = target[name];
+                            delete target[name];
+                            if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                                proto[name] = _createDynamicPrototype(proto, name);
+                            }
+                        }
+                    });
+                }
             }
-            _forEachProp(target, function (name) {
-                if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                    instFuncs_1[name] = target[name];
-                    delete target[name];
-                    if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                        proto[name] = _createDynamicPrototype(proto, name);
-                    }
-                }
-            });
         }
@@ -300,0 +358,0 @@ }

dist/es5/amd/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
-define(function(){"use strict";var t="undefined",n=Object,E=n.prototype;function p(n,t){return n&&E.hasOwnProperty.call(n,t)}var r,e="__tsUtils$gblCfg";function o(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}var i,u,f,a,l=n.defineProperty,c=function(){var n;r||(n=o()||{},r=n[e]=n[e]||{}),i=r,c=null},s="constructor",d="prototype",h="function",_="_dynInstFuncs",b="_isDynProxy",g="_dynClass",w="_dynInstChk",P=w,O="_dfOpts",G="_unknown_",M="__proto__",y="_dyn"+M,n="__dynProto$Gbl",v="_dynInstProto",z="useBaseInst",C="setInstFuncs",I=Object,m=I.getPrototypeOf,N=I.getOwnPropertyNames,U=(u=o,f=function(){var n=u,t=null;try{t=n()}catch(r){}return t},a={},c&&c(),a.b=i.lzy,l(a,"v",{configurable:!0,get:function(){var n=f();return i.lzy||(l(a,"v",{value:n}),a.b&&delete a.b),i.lzy&&a.b!==i.lzy&&(a.b=i.lzy),n}}),a.v),$=U[n]||(U[n]={o:((n={})[C]=!0,n[z]=!0,n),n:1e3});function q(n){return n&&(n===I[d]||n===Array[d])}function k(n){return q(n)||n===Function[d]}function F(n){if(n){if(m)return m(n);var t=n[M]||n[d]||(n[s]?n[s][d]:null),r=n[y]||t;p(n,y)||(delete n[v],r=n[y]=n[v]||n[y],n[v]=t)}return r}function T(n,t){var r=[];if(N)r=N(n);else for(var e in n)"string"==typeof e&&p(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function j(n,t,r){return t!==s&&typeof n[t]===h&&(r||p(n,t))}function D(n){throw new TypeError("DynamicProto: "+n)}function x(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function A(n,t){return p(n,d)?n.name||t||G:((n||{})[s]||{}).name||t||G}function B(n,e,t,r){p(n,d)||D("theClass is an invalid class definition.");var o,i,u,f,a,l,c=n[d],s=(function(n){if(!m)return 1;for(var t=[],r=F(e);r&&!k(r)&&!x(t,r);){if(r===n)return 1;t.push(r),r=F(r)}}(c)||D("["+A(n)+"] not in hierarchy of ["+A(e)+"]"),null),n=(p(c,g)?s=c[g]:(s="_dynCls$"+A(n,"_")+"$"+$.n,$.n++,c[g]=s),B[O]),y=!!n[z],v=(y&&r&&r[z]!==undefined&&(y=!!r[z]),i={},T(o=e,function(n){!i[n]&&j(o,n,!1)&&(i[n]=o[n])}),i),y=(t(e,function(n,t,r,i){function e(n,t,r){var e,o=t[r];return o[b]&&i&&!1!==(e=n[_]||{})[P]&&(o=(e[t[g]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o={},u=(T(r,function(n){o[n]=e(t,r,n)}),F(n)),f=[];u&&!k(u)&&!x(f,u);)T(u,function(n){!o[n]&&j(u,n,!m)&&(o[n]=e(t,u,n))}),f.push(u),u=F(u);return o}(c,e,v,y)),!!m&&!!n[C]);u=c,t=s,f=e,a=v,n=0!=(y&&r?!!r[C]:y),q(u)||(c=f[_]=f[_]||{},l=c[t]=c[t]||{},!1!==c[P]&&(c[P]=!!n),T(f,function(n){var r,e,o;j(f,n,!1)&&f[n]!==a[n]&&(l[n]=f[n],delete f[n],p(u,n)&&(!u[n]||u[n][b])||(u[n]=(r=u,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&p(r,g)){var i=n[_]||{};if((o=(i[r[g]]||{})[t])||D("Missing ["+t+"] "+h),!o[w]&&!1!==i[P]){for(var u=!p(n,t),f=F(n),a=[];u&&f&&!k(f)&&!x(a,f);){var l=f[t];if(l){u=l===e;break}a.push(f),f=F(f)}try{u&&(n[t]=o),o[w]=1}catch(c){i[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?F(r)[n]:t)!==h&&D("["+n+"] is not a "+h),t)).apply(this,arguments)})[b]=1,o)))}))}return B[O]=$.o,B});
+define(function(){"use strict";var x=undefined,o=null,e="prototype",t="undefined",r="call",n=Object,A=n[e];function B(n){return A.toString[r](n)}function v(n,t){return n&&A.hasOwnProperty[r](n,t)}var u,G="__tsUtils$gblCfg";function J(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}function M(n,t){var r="";if(n&&"[object Error]"===B(n))r="{ stack: '"+n.stack+"', message: '"+n.message+"', name: '"+n.name+"'";else try{r=JSON.stringify(n,o,t?"number"==typeof t?t:4:x)}catch(e){r=" - "+M(e,t)}return B(n)+": "+r}var i,U,q,f,H=n.defineProperty,a=function(){var n;u||(n=J()||{},u=n[G]=n[G]||{}),i=u,a=o},d=n.create||function(n){if(!n)return{};var t=typeof n;if("object"!=t&&"function"!=t)throw new TypeError("Prototype must be an Object or function: "+M(n));function r(){}return r[e]=n,new r},l="constructor",h="prototype",b="function",g="_dynInstFuncs",_="_isDynProxy",w="_dynClass",m="_dynInstChk",P=m,K="_dfOpts",L="_unknown_",c="__proto__",s="_dyn"+c,n="__dynProto$Gbl",y="_dynInstProto",O="useBaseInst",j="setInstFuncs",p=Object,k=p.getPrototypeOf,Q=p.getOwnPropertyNames,R=(U=J,q=function(){var n=U,t=null;try{t=n()}catch(r){}return t},f={},a&&a(),f.b=i.lzy,H(f,"v",{configurable:!0,get:function(){var n=q();return i.lzy||(H(f,"v",{value:n}),f.b&&delete f.b),i.lzy&&f.b!==i.lzy&&(f.b=i.lzy),n}}),f.v),z=R[n]||(R[n]={o:((n={})[j]=!0,n[O]=!0,n),n:1e3});function C(n){return n&&(n===p[h]||n===Array[h])}function I(n){return C(n)||n===Function[h]}function T(n){if(n){if(k)return k(n);var t=n[c]||n[h]||(n[l]?n[l][h]:null),r=n[s]||t;v(n,s)||(delete n[y],r=n[s]=n[y]||n[s],n[y]=t)}return r}function $(n,t){var r=[];if(Q)r=Q(n);else for(var e in n)"string"==typeof e&&v(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function E(n,t,r){return t!==l&&typeof n[t]===b&&(r||v(n,t))&&t!==c&&t!==h}function F(n){throw new TypeError("DynamicProto: "+n)}function D(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function N(n,t){return v(n,h)?n.name||t||L:((n||{})[l]||{}).name||t||L}function S(n,e,t,r){v(n,h)||F("theClass is an invalid class definition.");var o,u,i,f,a,l,c=n[h],s=(function(n){if(!k)return 1;for(var t=[],r=T(e);r&&!I(r)&&!D(t,r);){if(r===n)return 1;t.push(r),r=T(r)}}(c)||F("["+N(n)+"] not in hierarchy of ["+N(e)+"]"),null),n=(v(c,w)?s=c[w]:(s="_dynCls$"+N(n,"_")+"$"+z.n,z.n++,c[w]=s),S[K]),y=!!n[O],p=(y&&r&&r[O]!==undefined&&(y=!!r[O]),o=e,u=d(null),$(o,function(n){!u[n]&&E(o,n,!1)&&(u[n]=o[n])}),u),y=(t(e,function(n,t,r,u){function e(n,t,r){var e,o=t[r];return o[_]&&u&&!1!==(e=n[g]||{})[P]&&(o=(e[t[w]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o=d(null),i=($(r,function(n){o[n]=e(t,r,n)}),T(n)),f=[];i&&!I(i)&&!D(f,i);)$(i,function(n){!o[n]&&E(i,n,!k)&&(o[n]=e(t,i,n))}),f.push(i),i=T(i);return o}(c,e,p,y)),!!k&&!!n[j]);i=c,t=s,f=e,a=p,n=0!=(y&&r?!!r[j]:y),C(i)||C(c=f[g]=f[g]||d(null))||(l=c[t]=c[t]||d(null),!1!==c[P]&&(c[P]=!!n),C(l))||$(f,function(n){var r,e,o;E(f,n,!1)&&f[n]!==a[n]&&(l[n]=f[n],delete f[n],v(i,n)&&(!i[n]||i[n][_])||(i[n]=(r=i,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&v(r,w)){var u=n[g]||d(null);if((o=(u[r[w]]||d(null))[t])||F("Missing ["+t+"] "+b),!o[m]&&!1!==u[P]){for(var i=!v(n,t),f=T(n),a=[];i&&f&&!I(f)&&!D(a,f);){var l=f[t];if(l){i=l===e;break}a.push(f),f=T(f)}try{i&&(n[t]=o),o[m]=1}catch(c){u[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?T(r)[n]:t)!==b&&F("["+n+"] is not a "+b),t)).apply(this,arguments)})[_]=1,o)))})}return S[K]=z.o,S});
 //# sourceMappingURL=dynamicproto-js.min.js.map

dist/es5/cjs/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
@@ -7,8 +7,15 @@ */
 
+var UNDEF_VALUE = undefined;
+var NULL_VALUE = null;
+var EMPTY = "";
+var FUNCTION = "function";
+var NUMBER = "number";
+var OBJECT = "object";
 var PROTOTYPE = "prototype";
 var UNDEFINED = "undefined";
+var CALL = "call";
 var ObjClass = Object;
 var ObjProto = ObjClass[PROTOTYPE];
 
-function _safeGet(cb, defValue) {
+function safeGet(cb, defValue) {
     var result = defValue;
@@ -23,4 +30,21 @@ try {
 
+function _createIs(theType) {
+    return function (value) {
+        return typeof value === theType;
+    };
+}
+function _createObjIs(theName) {
+    var theType = "[object " + theName + "]";
+    return function (value) {
+        return !!(value && objToString(value) === theType);
+    };
+}
+function objToString(value) {
+    return ObjProto.toString[CALL](value);
+}
+var isNumber = ( _createIs(NUMBER));
+var isError = ( _createObjIs("Error"));
+
 function objHasOwnProperty(obj, prop) {
-    return obj && ObjProto.hasOwnProperty.call(obj, prop);
+    return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
 }
@@ -58,2 +82,18 @@
 
+function dumpObj(object, format) {
+    var propertyValueDump = EMPTY;
+    if (isError(object)) {
+        propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+    }
+    else {
+        try {
+            propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+        }
+        catch (e) {
+            propertyValueDump = " - " + dumpObj(e, format);
+        }
+    }
+    return objToString(object) + ": " + propertyValueDump;
+}
+
 var objDefineProp = ObjClass["defineProperty"];
@@ -64,3 +104,3 @@
     _globalLazyTestHooks = _getGlobalConfig();
-    _fetchLazyTestHooks = null;
+    _fetchLazyTestHooks = NULL_VALUE;
 };
@@ -92,4 +132,4 @@ function getLazy(cb) {
 
-function _lazySafeGet(cb, defValue) {
-    return getLazy(function () { return _safeGet(cb, defValue); });
+function safeGetLazy(cb, defValue) {
+    return getLazy(function () { return safeGet(cb, defValue); });
 }
@@ -99,6 +139,20 @@
 function getGlobal(useCached) {
-    (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+    (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
     return _cachedGlobal.v;
 }
 
+var objCreate = ObjClass["create"] || polyObjCreate;
+function polyObjCreate(obj) {
+    if (!obj) {
+        return {};
+    }
+    var type = typeof obj;
+    if (type !== OBJECT && type !== FUNCTION) {
+        throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+    }
+    function tempFunc() { }
+    tempFunc[PROTOTYPE] = obj;
+    return new tempFunc();
+}
+
 var _a;
@@ -174,3 +228,3 @@ var Constructor = 'constructor';
 function _isDynamicCandidate(target, funcName, skipOwn) {
-    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
 }
@@ -181,3 +235,3 @@ function _throwTypeError(message) {
 function _getInstanceFuncs(thisTarget) {
-    var instFuncs = {};
+    var instFuncs = objCreate(null);
     _forEachProp(thisTarget, function (name) {
@@ -211,3 +265,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
     }
-    var baseFuncs = {};
+    var baseFuncs = objCreate(null);
     _forEachProp(instFuncs, function (name) {
@@ -232,4 +286,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
     if (target && objHasOwnProperty(proto, DynClassName)) {
-        var instFuncTable = target[DynInstFuncTable] || {};
-        instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+        var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+        instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
         if (!instFunc) {
@@ -284,16 +338,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
     if (!_isObjectOrArrayPrototype(proto)) {
-        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-        var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-        if (instFuncTable[DynAllowInstChkTag] !== false) {
-            instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+        if (!_isObjectOrArrayPrototype(instFuncTable)) {
+            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+            if (instFuncTable[DynAllowInstChkTag] !== false) {
+                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            }
+            if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                _forEachProp(target, function (name) {
+                    if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                        instFuncs_1[name] = target[name];
+                        delete target[name];
+                        if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                            proto[name] = _createDynamicPrototype(proto, name);
+                        }
+                    }
+                });
+            }
         }
-        _forEachProp(target, function (name) {
-            if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                instFuncs_1[name] = target[name];
-                delete target[name];
-                if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                    proto[name] = _createDynamicPrototype(proto, name);
-                }
-            }
-        });
     }
@@ -300,0 +358,0 @@ }

dist/es5/cjs/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
-"use strict";var t="undefined",n=Object,E=n.prototype;function v(n,t){return n&&E.hasOwnProperty.call(n,t)}var r,o="__tsUtils$gblCfg";function e(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}var u,i,f,a,l=n.defineProperty,s=function(){var n;r||(n=e()||{},r=n[o]=n[o]||{}),u=r,s=null},c="constructor",d="prototype",h="function",_="_dynInstFuncs",b="_isDynProxy",g="_dynClass",w="_dynInstChk",P=w,O="_dfOpts",G="_unknown_",M="__proto__",y="_dyn"+M,n="__dynProto$Gbl",p="_dynInstProto",m="useBaseInst",z="setInstFuncs",C=Object,I=C.getPrototypeOf,N=C.getOwnPropertyNames,U=(i=e,f=function(){var n=i,t=null;try{t=n()}catch(r){}return t},a={},s&&s(),a.b=u.lzy,l(a,"v",{configurable:!0,get:function(){var n=f();return u.lzy||(l(a,"v",{value:n}),a.b&&delete a.b),u.lzy&&a.b!==u.lzy&&(a.b=u.lzy),n}}),a.v),$=U[n]||(U[n]={o:((n={})[z]=!0,n[m]=!0,n),n:1e3});function q(n){return n&&(n===C[d]||n===Array[d])}function k(n){return q(n)||n===Function[d]}function F(n){if(n){if(I)return I(n);var t=n[M]||n[d]||(n[c]?n[c][d]:null),r=n[y]||t;v(n,y)||(delete n[p],r=n[y]=n[p]||n[y],n[p]=t)}return r}function T(n,t){var r=[];if(N)r=N(n);else for(var o in n)"string"==typeof o&&v(n,o)&&r.push(o);if(r&&0<r.length)for(var e=0;e<r.length;e++)t(r[e])}function j(n,t,r){return t!==c&&typeof n[t]===h&&(r||v(n,t))}function x(n){throw new TypeError("DynamicProto: "+n)}function D(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function A(n,t){return v(n,d)?n.name||t||G:((n||{})[c]||{}).name||t||G}function B(n,o,t,r){v(n,d)||x("theClass is an invalid class definition.");var e,u,i,f,a,l,s=n[d],c=(function(n){if(!I)return 1;for(var t=[],r=F(o);r&&!k(r)&&!D(t,r);){if(r===n)return 1;t.push(r),r=F(r)}}(s)||x("["+A(n)+"] not in hierarchy of ["+A(o)+"]"),null),n=(v(s,g)?c=s[g]:(c="_dynCls$"+A(n,"_")+"$"+$.n,$.n++,s[g]=c),B[O]),y=!!n[m],p=(y&&r&&r[m]!==undefined&&(y=!!r[m]),u={},T(e=o,function(n){!u[n]&&j(e,n,!1)&&(u[n]=e[n])}),u),y=(t(o,function(n,t,r,u){function o(n,t,r){var o,e=t[r];return e[b]&&u&&!1!==(o=n[_]||{})[P]&&(e=(o[t[g]]||{})[r]||e),function(){return e.apply(n,arguments)}}for(var e={},i=(T(r,function(n){e[n]=o(t,r,n)}),F(n)),f=[];i&&!k(i)&&!D(f,i);)T(i,function(n){!e[n]&&j(i,n,!I)&&(e[n]=o(t,i,n))}),f.push(i),i=F(i);return e}(s,o,p,y)),!!I&&!!n[z]);i=s,t=c,f=o,a=p,n=0!=(y&&r?!!r[z]:y),q(i)||(s=f[_]=f[_]||{},l=s[t]=s[t]||{},!1!==s[P]&&(s[P]=!!n),T(f,function(n){var r,o,e;j(f,n,!1)&&f[n]!==a[n]&&(l[n]=f[n],delete f[n],v(i,n)&&(!i[n]||i[n][b])||(i[n]=(r=i,o=n,(e=function(){var n,t;return(function(n,t,r,o){var e=null;if(n&&v(r,g)){var u=n[_]||{};if((e=(u[r[g]]||{})[t])||x("Missing ["+t+"] "+h),!e[w]&&!1!==u[P]){for(var i=!v(n,t),f=F(n),a=[];i&&f&&!k(f)&&!D(a,f);){var l=f[t];if(l){i=l===o;break}a.push(f),f=F(f)}try{i&&(n[t]=e),e[w]=1}catch(s){u[P]=!1}}}return e}(this,o,r,e)||(typeof(t=(t=r[n=o])===e?F(r)[n]:t)!==h&&x("["+n+"] is not a "+h),t)).apply(this,arguments)})[b]=1,e)))}))}B[O]=$.o,module.exports=B;
+"use strict";var S=undefined,o=null,e="prototype",t="undefined",r="call",n=Object,A=n[e];function B(n){return A.toString[r](n)}function v(n,t){return n&&A.hasOwnProperty[r](n,t)}var u,G="__tsUtils$gblCfg";function J(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}function M(n,t){var r="";if(n&&"[object Error]"===B(n))r="{ stack: '"+n.stack+"', message: '"+n.message+"', name: '"+n.name+"'";else try{r=JSON.stringify(n,o,t?"number"==typeof t?t:4:S)}catch(e){r=" - "+M(e,t)}return B(n)+": "+r}var i,U,q,f,H=n.defineProperty,l=function(){var n;u||(n=J()||{},u=n[G]=n[G]||{}),i=u,l=o},d=n.create||function(n){if(!n)return{};var t=typeof n;if("object"!=t&&"function"!=t)throw new TypeError("Prototype must be an Object or function: "+M(n));function r(){}return r[e]=n,new r},a="constructor",h="prototype",b="function",g="_dynInstFuncs",_="_isDynProxy",w="_dynClass",m="_dynInstChk",P=m,K="_dfOpts",L="_unknown_",c="__proto__",s="_dyn"+c,n="__dynProto$Gbl",y="_dynInstProto",O="useBaseInst",j="setInstFuncs",p=Object,k=p.getPrototypeOf,Q=p.getOwnPropertyNames,R=(U=J,q=function(){var n=U,t=null;try{t=n()}catch(r){}return t},f={},l&&l(),f.b=i.lzy,H(f,"v",{configurable:!0,get:function(){var n=q();return i.lzy||(H(f,"v",{value:n}),f.b&&delete f.b),i.lzy&&f.b!==i.lzy&&(f.b=i.lzy),n}}),f.v),z=R[n]||(R[n]={o:((n={})[j]=!0,n[O]=!0,n),n:1e3});function C(n){return n&&(n===p[h]||n===Array[h])}function I(n){return C(n)||n===Function[h]}function T(n){if(n){if(k)return k(n);var t=n[c]||n[h]||(n[a]?n[a][h]:null),r=n[s]||t;v(n,s)||(delete n[y],r=n[s]=n[y]||n[s],n[y]=t)}return r}function $(n,t){var r=[];if(Q)r=Q(n);else for(var e in n)"string"==typeof e&&v(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function E(n,t,r){return t!==a&&typeof n[t]===b&&(r||v(n,t))&&t!==c&&t!==h}function F(n){throw new TypeError("DynamicProto: "+n)}function x(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function D(n,t){return v(n,h)?n.name||t||L:((n||{})[a]||{}).name||t||L}function N(n,e,t,r){v(n,h)||F("theClass is an invalid class definition.");var o,u,i,f,l,a,c=n[h],s=(function(n){if(!k)return 1;for(var t=[],r=T(e);r&&!I(r)&&!x(t,r);){if(r===n)return 1;t.push(r),r=T(r)}}(c)||F("["+D(n)+"] not in hierarchy of ["+D(e)+"]"),null),n=(v(c,w)?s=c[w]:(s="_dynCls$"+D(n,"_")+"$"+z.n,z.n++,c[w]=s),N[K]),y=!!n[O],p=(y&&r&&r[O]!==undefined&&(y=!!r[O]),o=e,u=d(null),$(o,function(n){!u[n]&&E(o,n,!1)&&(u[n]=o[n])}),u),y=(t(e,function(n,t,r,u){function e(n,t,r){var e,o=t[r];return o[_]&&u&&!1!==(e=n[g]||{})[P]&&(o=(e[t[w]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o=d(null),i=($(r,function(n){o[n]=e(t,r,n)}),T(n)),f=[];i&&!I(i)&&!x(f,i);)$(i,function(n){!o[n]&&E(i,n,!k)&&(o[n]=e(t,i,n))}),f.push(i),i=T(i);return o}(c,e,p,y)),!!k&&!!n[j]);i=c,t=s,f=e,l=p,n=0!=(y&&r?!!r[j]:y),C(i)||C(c=f[g]=f[g]||d(null))||(a=c[t]=c[t]||d(null),!1!==c[P]&&(c[P]=!!n),C(a))||$(f,function(n){var r,e,o;E(f,n,!1)&&f[n]!==l[n]&&(a[n]=f[n],delete f[n],v(i,n)&&(!i[n]||i[n][_])||(i[n]=(r=i,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&v(r,w)){var u=n[g]||d(null);if((o=(u[r[w]]||d(null))[t])||F("Missing ["+t+"] "+b),!o[m]&&!1!==u[P]){for(var i=!v(n,t),f=T(n),l=[];i&&f&&!I(f)&&!x(l,f);){var a=f[t];if(a){i=a===e;break}l.push(f),f=T(f)}try{i&&(n[t]=o),o[m]=1}catch(c){u[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?T(r)[n]:t)!==b&&F("["+n+"] is not a "+b),t)).apply(this,arguments)})[_]=1,o)))})}N[K]=z.o,module.exports=N;
 //# sourceMappingURL=dynamicproto-js.min.js.map

dist/es5/esm/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
+var UNDEF_VALUE = undefined;
+var NULL_VALUE = null;
+var EMPTY = "";
+var FUNCTION = "function";
+var NUMBER = "number";
+var OBJECT = "object";
 var PROTOTYPE = "prototype";
 var UNDEFINED = "undefined";
+var CALL = "call";
 var ObjClass = Object;
 var ObjProto = ObjClass[PROTOTYPE];
 
-function _safeGet(cb, defValue) {
+function safeGet(cb, defValue) {
     var result = defValue;
@@ -20,4 +27,21 @@ try {
 
+function _createIs(theType) {
+    return function (value) {
+        return typeof value === theType;
+    };
+}
+function _createObjIs(theName) {
+    var theType = "[object " + theName + "]";
+    return function (value) {
+        return !!(value && objToString(value) === theType);
+    };
+}
+function objToString(value) {
+    return ObjProto.toString[CALL](value);
+}
+var isNumber = ( _createIs(NUMBER));
+var isError = ( _createObjIs("Error"));
+
 function objHasOwnProperty(obj, prop) {
-    return obj && ObjProto.hasOwnProperty.call(obj, prop);
+    return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
 }
@@ -55,2 +79,18 @@
 
+function dumpObj(object, format) {
+    var propertyValueDump = EMPTY;
+    if (isError(object)) {
+        propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+    }
+    else {
+        try {
+            propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+        }
+        catch (e) {
+            propertyValueDump = " - " + dumpObj(e, format);
+        }
+    }
+    return objToString(object) + ": " + propertyValueDump;
+}
+
 var objDefineProp = ObjClass["defineProperty"];
@@ -61,3 +101,3 @@
     _globalLazyTestHooks = _getGlobalConfig();
-    _fetchLazyTestHooks = null;
+    _fetchLazyTestHooks = NULL_VALUE;
 };
@@ -89,4 +129,4 @@ function getLazy(cb) {
 
-function _lazySafeGet(cb, defValue) {
-    return getLazy(function () { return _safeGet(cb, defValue); });
+function safeGetLazy(cb, defValue) {
+    return getLazy(function () { return safeGet(cb, defValue); });
 }
@@ -96,6 +136,20 @@
 function getGlobal(useCached) {
-    (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+    (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
     return _cachedGlobal.v;
 }
 
+var objCreate = ObjClass["create"] || polyObjCreate;
+function polyObjCreate(obj) {
+    if (!obj) {
+        return {};
+    }
+    var type = typeof obj;
+    if (type !== OBJECT && type !== FUNCTION) {
+        throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+    }
+    function tempFunc() { }
+    tempFunc[PROTOTYPE] = obj;
+    return new tempFunc();
+}
+
 var _a;
@@ -171,3 +225,3 @@ var Constructor = 'constructor';
 function _isDynamicCandidate(target, funcName, skipOwn) {
-    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
 }
@@ -178,3 +232,3 @@ function _throwTypeError(message) {
 function _getInstanceFuncs(thisTarget) {
-    var instFuncs = {};
+    var instFuncs = objCreate(null);
     _forEachProp(thisTarget, function (name) {
@@ -208,3 +262,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
     }
-    var baseFuncs = {};
+    var baseFuncs = objCreate(null);
     _forEachProp(instFuncs, function (name) {
@@ -229,4 +283,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
     if (target && objHasOwnProperty(proto, DynClassName)) {
-        var instFuncTable = target[DynInstFuncTable] || {};
-        instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+        var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+        instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
         if (!instFunc) {
@@ -281,16 +335,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
     if (!_isObjectOrArrayPrototype(proto)) {
-        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-        var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-        if (instFuncTable[DynAllowInstChkTag] !== false) {
-            instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+        if (!_isObjectOrArrayPrototype(instFuncTable)) {
+            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+            if (instFuncTable[DynAllowInstChkTag] !== false) {
+                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            }
+            if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                _forEachProp(target, function (name) {
+                    if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                        instFuncs_1[name] = target[name];
+                        delete target[name];
+                        if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                            proto[name] = _createDynamicPrototype(proto, name);
+                        }
+                    }
+                });
+            }
         }
-        _forEachProp(target, function (name) {
-            if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                instFuncs_1[name] = target[name];
-                delete target[name];
-                if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                    proto[name] = _createDynamicPrototype(proto, name);
-                }
-            }
-        });
     }
@@ -297,0 +355,0 @@ }

dist/es5/esm/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
+var UNDEF_VALUE = undefined;
+var NULL_VALUE = null;
+var EMPTY = "";
+var FUNCTION = "function";
+var NUMBER = "number";
+var OBJECT = "object";
 var PROTOTYPE = "prototype";
 var UNDEFINED = "undefined";
+var CALL = "call";
 var ObjClass = Object;
 var ObjProto = ObjClass[PROTOTYPE];
 
-function _safeGet(cb, defValue) {
+function safeGet(cb, defValue) {
     var result = defValue;
@@ -20,4 +27,21 @@ try {
 
+function _createIs(theType) {
+    return function (value) {
+        return typeof value === theType;
+    };
+}
+function _createObjIs(theName) {
+    var theType = "[object " + theName + "]";
+    return function (value) {
+        return !!(value && objToString(value) === theType);
+    };
+}
+function objToString(value) {
+    return ObjProto.toString[CALL](value);
+}
+var isNumber = ( _createIs(NUMBER));
+var isError = ( _createObjIs("Error"));
+
 function objHasOwnProperty(obj, prop) {
-    return obj && ObjProto.hasOwnProperty.call(obj, prop);
+    return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
 }
@@ -55,2 +79,18 @@
 
+function dumpObj(object, format) {
+    var propertyValueDump = EMPTY;
+    if (isError(object)) {
+        propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+    }
+    else {
+        try {
+            propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+        }
+        catch (e) {
+            propertyValueDump = " - " + dumpObj(e, format);
+        }
+    }
+    return objToString(object) + ": " + propertyValueDump;
+}
+
 var objDefineProp = ObjClass["defineProperty"];
@@ -61,3 +101,3 @@
     _globalLazyTestHooks = _getGlobalConfig();
-    _fetchLazyTestHooks = null;
+    _fetchLazyTestHooks = NULL_VALUE;
 };
@@ -89,4 +129,4 @@ function getLazy(cb) {
 
-function _lazySafeGet(cb, defValue) {
-    return getLazy(function () { return _safeGet(cb, defValue); });
+function safeGetLazy(cb, defValue) {
+    return getLazy(function () { return safeGet(cb, defValue); });
 }
@@ -96,6 +136,20 @@
 function getGlobal(useCached) {
-    (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+    (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
     return _cachedGlobal.v;
 }
 
+var objCreate = ObjClass["create"] || polyObjCreate;
+function polyObjCreate(obj) {
+    if (!obj) {
+        return {};
+    }
+    var type = typeof obj;
+    if (type !== OBJECT && type !== FUNCTION) {
+        throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+    }
+    function tempFunc() { }
+    tempFunc[PROTOTYPE] = obj;
+    return new tempFunc();
+}
+
 var _a;
@@ -171,3 +225,3 @@ var Constructor = 'constructor';
 function _isDynamicCandidate(target, funcName, skipOwn) {
-    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+    return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
 }
@@ -178,3 +232,3 @@ function _throwTypeError(message) {
 function _getInstanceFuncs(thisTarget) {
-    var instFuncs = {};
+    var instFuncs = objCreate(null);
     _forEachProp(thisTarget, function (name) {
@@ -208,3 +262,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
     }
-    var baseFuncs = {};
+    var baseFuncs = objCreate(null);
     _forEachProp(instFuncs, function (name) {
@@ -229,4 +283,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
     if (target && objHasOwnProperty(proto, DynClassName)) {
-        var instFuncTable = target[DynInstFuncTable] || {};
-        instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+        var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+        instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
         if (!instFunc) {
@@ -281,16 +335,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
     if (!_isObjectOrArrayPrototype(proto)) {
-        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-        var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-        if (instFuncTable[DynAllowInstChkTag] !== false) {
-            instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+        var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+        if (!_isObjectOrArrayPrototype(instFuncTable)) {
+            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+            if (instFuncTable[DynAllowInstChkTag] !== false) {
+                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            }
+            if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                _forEachProp(target, function (name) {
+                    if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                        instFuncs_1[name] = target[name];
+                        delete target[name];
+                        if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                            proto[name] = _createDynamicPrototype(proto, name);
+                        }
+                    }
+                });
+            }
         }
-        _forEachProp(target, function (name) {
-            if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                instFuncs_1[name] = target[name];
-                delete target[name];
-                if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                    proto[name] = _createDynamicPrototype(proto, name);
-                }
-            }
-        });
     }
@@ -297,0 +355,0 @@ }

dist/es5/iife/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
@@ -9,8 +9,15 @@ */
 
+    var UNDEF_VALUE = undefined;
+    var NULL_VALUE = null;
+    var EMPTY = "";
+    var FUNCTION = "function";
+    var NUMBER = "number";
+    var OBJECT = "object";
     var PROTOTYPE = "prototype";
     var UNDEFINED = "undefined";
+    var CALL = "call";
     var ObjClass = Object;
     var ObjProto = ObjClass[PROTOTYPE];
 
-    function _safeGet(cb, defValue) {
+    function safeGet(cb, defValue) {
         var result = defValue;
@@ -25,4 +32,21 @@ try {
 
+    function _createIs(theType) {
+        return function (value) {
+            return typeof value === theType;
+        };
+    }
+    function _createObjIs(theName) {
+        var theType = "[object " + theName + "]";
+        return function (value) {
+            return !!(value && objToString(value) === theType);
+        };
+    }
+    function objToString(value) {
+        return ObjProto.toString[CALL](value);
+    }
+    var isNumber = ( _createIs(NUMBER));
+    var isError = ( _createObjIs("Error"));
+
     function objHasOwnProperty(obj, prop) {
-        return obj && ObjProto.hasOwnProperty.call(obj, prop);
+        return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
     }
@@ -60,2 +84,18 @@
 
+    function dumpObj(object, format) {
+        var propertyValueDump = EMPTY;
+        if (isError(object)) {
+            propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+        }
+        else {
+            try {
+                propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+            }
+            catch (e) {
+                propertyValueDump = " - " + dumpObj(e, format);
+            }
+        }
+        return objToString(object) + ": " + propertyValueDump;
+    }
+
     var objDefineProp = ObjClass["defineProperty"];
@@ -66,3 +106,3 @@
         _globalLazyTestHooks = _getGlobalConfig();
-        _fetchLazyTestHooks = null;
+        _fetchLazyTestHooks = NULL_VALUE;
     };
@@ -94,4 +134,4 @@ function getLazy(cb) {
 
-    function _lazySafeGet(cb, defValue) {
-        return getLazy(function () { return _safeGet(cb, defValue); });
+    function safeGetLazy(cb, defValue) {
+        return getLazy(function () { return safeGet(cb, defValue); });
     }
@@ -101,6 +141,20 @@
     function getGlobal(useCached) {
-        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
         return _cachedGlobal.v;
     }
 
+    var objCreate = ObjClass["create"] || polyObjCreate;
+    function polyObjCreate(obj) {
+        if (!obj) {
+            return {};
+        }
+        var type = typeof obj;
+        if (type !== OBJECT && type !== FUNCTION) {
+            throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+        }
+        function tempFunc() { }
+        tempFunc[PROTOTYPE] = obj;
+        return new tempFunc();
+    }
+
     var _a;
@@ -176,3 +230,3 @@ var Constructor = 'constructor';
     function _isDynamicCandidate(target, funcName, skipOwn) {
-        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
     }
@@ -183,3 +237,3 @@ function _throwTypeError(message) {
     function _getInstanceFuncs(thisTarget) {
-        var instFuncs = {};
+        var instFuncs = objCreate(null);
         _forEachProp(thisTarget, function (name) {
@@ -213,3 +267,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
         }
-        var baseFuncs = {};
+        var baseFuncs = objCreate(null);
         _forEachProp(instFuncs, function (name) {
@@ -234,4 +288,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
         if (target && objHasOwnProperty(proto, DynClassName)) {
-            var instFuncTable = target[DynInstFuncTable] || {};
-            instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+            var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+            instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
             if (!instFunc) {
@@ -286,16 +340,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
         if (!_isObjectOrArrayPrototype(proto)) {
-            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-            if (instFuncTable[DynAllowInstChkTag] !== false) {
-                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+            if (!_isObjectOrArrayPrototype(instFuncTable)) {
+                var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+                if (instFuncTable[DynAllowInstChkTag] !== false) {
+                    instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+                }
+                if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                    _forEachProp(target, function (name) {
+                        if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                            instFuncs_1[name] = target[name];
+                            delete target[name];
+                            if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                                proto[name] = _createDynamicPrototype(proto, name);
+                            }
+                        }
+                    });
+                }
             }
-            _forEachProp(target, function (name) {
-                if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                    instFuncs_1[name] = target[name];
-                    delete target[name];
-                    if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                        proto[name] = _createDynamicPrototype(proto, name);
-                    }
-                }
-            });
         }
@@ -302,0 +360,0 @@ }

dist/es5/iife/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
-this.Microsoft=this.Microsoft||{},this.Microsoft["DynamicProto-JS"]=function(){"use strict";var t="undefined",n=Object,B=n.prototype;function p(n,t){return n&&B.hasOwnProperty.call(n,t)}var r,o="__tsUtils$gblCfg";function e(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}var i,u,f,a,s=n.defineProperty,c=function(){var n;r||(n=e()||{},r=n[o]=n[o]||{}),i=r,c=null},l="constructor",h="prototype",d="function",_="_dynInstFuncs",b="_isDynProxy",g="_dynClass",w="_dynInstChk",P=w,O="_dfOpts",E="_unknown_",G="__proto__",y="_dyn"+G,n="__dynProto$Gbl",v="_dynInstProto",m="useBaseInst",z="setInstFuncs",C=Object,I=C.getPrototypeOf,J=C.getOwnPropertyNames,N=(u=e,f=function(){var n=u,t=null;try{t=n()}catch(r){}return t},a={},c&&c(),a.b=i.lzy,s(a,"v",{configurable:!0,get:function(){var n=f();return i.lzy||(s(a,"v",{value:n}),a.b&&delete a.b),i.lzy&&a.b!==i.lzy&&(a.b=i.lzy),n}}),a.v),M=N[n]||(N[n]={o:((n={})[z]=!0,n[m]=!0,n),n:1e3});function S(n){return n&&(n===C[h]||n===Array[h])}function $(n){return S(n)||n===Function[h]}function k(n){if(n){if(I)return I(n);var t=n[G]||n[h]||(n[l]?n[l][h]:null),r=n[y]||t;p(n,y)||(delete n[v],r=n[y]=n[v]||n[y],n[v]=t)}return r}function D(n,t){var r=[];if(J)r=J(n);else for(var o in n)"string"==typeof o&&p(n,o)&&r.push(o);if(r&&0<r.length)for(var e=0;e<r.length;e++)t(r[e])}function F(n,t,r){return t!==l&&typeof n[t]===d&&(r||p(n,t))}function T(n){throw new TypeError("DynamicProto: "+n)}function j(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function x(n,t){return p(n,h)?n.name||t||E:((n||{})[l]||{}).name||t||E}function A(n,o,t,r){p(n,h)||T("theClass is an invalid class definition.");var e,i,u,f,a,s,c=n[h],l=(function(n){if(!I)return 1;for(var t=[],r=k(o);r&&!$(r)&&!j(t,r);){if(r===n)return 1;t.push(r),r=k(r)}}(c)||T("["+x(n)+"] not in hierarchy of ["+x(o)+"]"),null),n=(p(c,g)?l=c[g]:(l="_dynCls$"+x(n,"_")+"$"+M.n,M.n++,c[g]=l),A[O]),y=!!n[m],v=(y&&r&&r[m]!==undefined&&(y=!!r[m]),i={},D(e=o,function(n){!i[n]&&F(e,n,!1)&&(i[n]=e[n])}),i),y=(t(o,function(n,t,r,i){function o(n,t,r){var o,e=t[r];return e[b]&&i&&!1!==(o=n[_]||{})[P]&&(e=(o[t[g]]||{})[r]||e),function(){return e.apply(n,arguments)}}for(var e={},u=(D(r,function(n){e[n]=o(t,r,n)}),k(n)),f=[];u&&!$(u)&&!j(f,u);)D(u,function(n){!e[n]&&F(u,n,!I)&&(e[n]=o(t,u,n))}),f.push(u),u=k(u);return e}(c,o,v,y)),!!I&&!!n[z]);u=c,t=l,f=o,a=v,n=0!=(y&&r?!!r[z]:y),S(u)||(c=f[_]=f[_]||{},s=c[t]=c[t]||{},!1!==c[P]&&(c[P]=!!n),D(f,function(n){var r,o,e;F(f,n,!1)&&f[n]!==a[n]&&(s[n]=f[n],delete f[n],p(u,n)&&(!u[n]||u[n][b])||(u[n]=(r=u,o=n,(e=function(){var n,t;return(function(n,t,r,o){var e=null;if(n&&p(r,g)){var i=n[_]||{};if((e=(i[r[g]]||{})[t])||T("Missing ["+t+"] "+d),!e[w]&&!1!==i[P]){for(var u=!p(n,t),f=k(n),a=[];u&&f&&!$(f)&&!j(a,f);){var s=f[t];if(s){u=s===o;break}a.push(f),f=k(f)}try{u&&(n[t]=e),e[w]=1}catch(c){i[P]=!1}}}return e}(this,o,r,e)||(typeof(t=(t=r[n=o])===e?k(r)[n]:t)!==d&&T("["+n+"] is not a "+d),t)).apply(this,arguments)})[b]=1,e)))}))}return A[O]=M.o,A}();
+this.Microsoft=this.Microsoft||{},this.Microsoft["DynamicProto-JS"]=function(){"use strict";var J=undefined,o=null,e="prototype",t="undefined",r="call",n=Object,N=n[e];function x(n){return N.toString[r](n)}function v(n,t){return n&&N.hasOwnProperty[r](n,t)}var i,A="__tsUtils$gblCfg";function B(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}function G(n,t){var r="";if(n&&"[object Error]"===x(n))r="{ stack: '"+n.stack+"', message: '"+n.message+"', name: '"+n.name+"'";else try{r=JSON.stringify(n,o,t?"number"==typeof t?t:4:J)}catch(e){r=" - "+G(e,t)}return x(n)+": "+r}var u,U,q,f,H=n.defineProperty,c=function(){var n;i||(n=B()||{},i=n[A]=n[A]||{}),u=i,c=o},h=n.create||function(n){if(!n)return{};var t=typeof n;if("object"!=t&&"function"!=t)throw new TypeError("Prototype must be an Object or function: "+G(n));function r(){}return r[e]=n,new r},a="constructor",d="prototype",b="function",g="_dynInstFuncs",_="_isDynProxy",w="_dynClass",m="_dynInstChk",P=m,K="_dfOpts",L="_unknown_",l="__proto__",s="_dyn"+l,n="__dynProto$Gbl",y="_dynInstProto",O="useBaseInst",j="setInstFuncs",p=Object,k=p.getPrototypeOf,Q=p.getOwnPropertyNames,R=(U=B,q=function(){var n=U,t=null;try{t=n()}catch(r){}return t},f={},c&&c(),f.b=u.lzy,H(f,"v",{configurable:!0,get:function(){var n=q();return u.lzy||(H(f,"v",{value:n}),f.b&&delete f.b),u.lzy&&f.b!==u.lzy&&(f.b=u.lzy),n}}),f.v),z=R[n]||(R[n]={o:((n={})[j]=!0,n[O]=!0,n),n:1e3});function C(n){return n&&(n===p[d]||n===Array[d])}function I(n){return C(n)||n===Function[d]}function M(n){if(n){if(k)return k(n);var t=n[l]||n[d]||(n[a]?n[a][d]:null),r=n[s]||t;v(n,s)||(delete n[y],r=n[s]=n[y]||n[s],n[y]=t)}return r}function T(n,t){var r=[];if(Q)r=Q(n);else for(var e in n)"string"==typeof e&&v(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function $(n,t,r){return t!==a&&typeof n[t]===b&&(r||v(n,t))&&t!==l&&t!==d}function D(n){throw new TypeError("DynamicProto: "+n)}function E(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function F(n,t){return v(n,d)?n.name||t||L:((n||{})[a]||{}).name||t||L}function S(n,e,t,r){v(n,d)||D("theClass is an invalid class definition.");var o,i,u,f,c,a,l=n[d],s=(function(n){if(!k)return 1;for(var t=[],r=M(e);r&&!I(r)&&!E(t,r);){if(r===n)return 1;t.push(r),r=M(r)}}(l)||D("["+F(n)+"] not in hierarchy of ["+F(e)+"]"),null),n=(v(l,w)?s=l[w]:(s="_dynCls$"+F(n,"_")+"$"+z.n,z.n++,l[w]=s),S[K]),y=!!n[O],p=(y&&r&&r[O]!==undefined&&(y=!!r[O]),o=e,i=h(null),T(o,function(n){!i[n]&&$(o,n,!1)&&(i[n]=o[n])}),i),y=(t(e,function(n,t,r,i){function e(n,t,r){var e,o=t[r];return o[_]&&i&&!1!==(e=n[g]||{})[P]&&(o=(e[t[w]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o=h(null),u=(T(r,function(n){o[n]=e(t,r,n)}),M(n)),f=[];u&&!I(u)&&!E(f,u);)T(u,function(n){!o[n]&&$(u,n,!k)&&(o[n]=e(t,u,n))}),f.push(u),u=M(u);return o}(l,e,p,y)),!!k&&!!n[j]);u=l,t=s,f=e,c=p,n=0!=(y&&r?!!r[j]:y),C(u)||C(l=f[g]=f[g]||h(null))||(a=l[t]=l[t]||h(null),!1!==l[P]&&(l[P]=!!n),C(a))||T(f,function(n){var r,e,o;$(f,n,!1)&&f[n]!==c[n]&&(a[n]=f[n],delete f[n],v(u,n)&&(!u[n]||u[n][_])||(u[n]=(r=u,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&v(r,w)){var i=n[g]||h(null);if((o=(i[r[w]]||h(null))[t])||D("Missing ["+t+"] "+b),!o[m]&&!1!==i[P]){for(var u=!v(n,t),f=M(n),c=[];u&&f&&!I(f)&&!E(c,f);){var a=f[t];if(a){u=a===e;break}c.push(f),f=M(f)}try{u&&(n[t]=o),o[m]=1}catch(l){i[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?M(r)[n]:t)!==b&&D("["+n+"] is not a "+b),t)).apply(this,arguments)})[_]=1,o)))})}return S[K]=z.o,S}();
 //# sourceMappingURL=dynamicproto-js.min.js.map

dist/es5/node/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
@@ -11,8 +11,15 @@ */
 
+    var UNDEF_VALUE = undefined;
+    var NULL_VALUE = null;
+    var EMPTY = "";
+    var FUNCTION = "function";
+    var NUMBER = "number";
+    var OBJECT = "object";
     var PROTOTYPE = "prototype";
     var UNDEFINED = "undefined";
+    var CALL = "call";
     var ObjClass = Object;
     var ObjProto = ObjClass[PROTOTYPE];
 
-    function _safeGet(cb, defValue) {
+    function safeGet(cb, defValue) {
         var result = defValue;
@@ -27,4 +34,21 @@ try {
 
+    function _createIs(theType) {
+        return function (value) {
+            return typeof value === theType;
+        };
+    }
+    function _createObjIs(theName) {
+        var theType = "[object " + theName + "]";
+        return function (value) {
+            return !!(value && objToString(value) === theType);
+        };
+    }
+    function objToString(value) {
+        return ObjProto.toString[CALL](value);
+    }
+    var isNumber = ( _createIs(NUMBER));
+    var isError = ( _createObjIs("Error"));
+
     function objHasOwnProperty(obj, prop) {
-        return obj && ObjProto.hasOwnProperty.call(obj, prop);
+        return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
     }
@@ -62,2 +86,18 @@
 
+    function dumpObj(object, format) {
+        var propertyValueDump = EMPTY;
+        if (isError(object)) {
+            propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+        }
+        else {
+            try {
+                propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+            }
+            catch (e) {
+                propertyValueDump = " - " + dumpObj(e, format);
+            }
+        }
+        return objToString(object) + ": " + propertyValueDump;
+    }
+
     var objDefineProp = ObjClass["defineProperty"];
@@ -68,3 +108,3 @@
         _globalLazyTestHooks = _getGlobalConfig();
-        _fetchLazyTestHooks = null;
+        _fetchLazyTestHooks = NULL_VALUE;
     };
@@ -96,4 +136,4 @@ function getLazy(cb) {
 
-    function _lazySafeGet(cb, defValue) {
-        return getLazy(function () { return _safeGet(cb, defValue); });
+    function safeGetLazy(cb, defValue) {
+        return getLazy(function () { return safeGet(cb, defValue); });
     }
@@ -103,6 +143,20 @@
     function getGlobal(useCached) {
-        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
         return _cachedGlobal.v;
     }
 
+    var objCreate = ObjClass["create"] || polyObjCreate;
+    function polyObjCreate(obj) {
+        if (!obj) {
+            return {};
+        }
+        var type = typeof obj;
+        if (type !== OBJECT && type !== FUNCTION) {
+            throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+        }
+        function tempFunc() { }
+        tempFunc[PROTOTYPE] = obj;
+        return new tempFunc();
+    }
+
     var _a;
@@ -178,3 +232,3 @@ var Constructor = 'constructor';
     function _isDynamicCandidate(target, funcName, skipOwn) {
-        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
     }
@@ -185,3 +239,3 @@ function _throwTypeError(message) {
     function _getInstanceFuncs(thisTarget) {
-        var instFuncs = {};
+        var instFuncs = objCreate(null);
         _forEachProp(thisTarget, function (name) {
@@ -215,3 +269,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
         }
-        var baseFuncs = {};
+        var baseFuncs = objCreate(null);
         _forEachProp(instFuncs, function (name) {
@@ -236,4 +290,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
         if (target && objHasOwnProperty(proto, DynClassName)) {
-            var instFuncTable = target[DynInstFuncTable] || {};
-            instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+            var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+            instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
             if (!instFunc) {
@@ -288,16 +342,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
         if (!_isObjectOrArrayPrototype(proto)) {
-            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-            if (instFuncTable[DynAllowInstChkTag] !== false) {
-                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+            if (!_isObjectOrArrayPrototype(instFuncTable)) {
+                var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+                if (instFuncTable[DynAllowInstChkTag] !== false) {
+                    instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+                }
+                if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                    _forEachProp(target, function (name) {
+                        if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                            instFuncs_1[name] = target[name];
+                            delete target[name];
+                            if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                                proto[name] = _createDynamicPrototype(proto, name);
+                            }
+                        }
+                    });
+                }
             }
-            _forEachProp(target, function (name) {
-                if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                    instFuncs_1[name] = target[name];
-                    delete target[name];
-                    if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                        proto[name] = _createDynamicPrototype(proto, name);
-                    }
-                }
-            });
         }
@@ -304,0 +362,0 @@ }

dist/es5/node/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
-var n=this,t=function(){"use strict";var t="undefined",n=Object,B=n.prototype;function d(n,t){return n&&B.hasOwnProperty.call(n,t)}var r,o="__tsUtils$gblCfg";function e(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}var i,f,u,a,l=n.defineProperty,s=function(){var n;r||(n=e()||{},r=n[o]=n[o]||{}),i=r,s=null},c="constructor",v="prototype",h="function",_="_dynInstFuncs",b="_isDynProxy",g="_dynClass",w="_dynInstChk",P=w,m="_dfOpts",E="_unknown_",G="__proto__",y="_dyn"+G,n="__dynProto$Gbl",p="_dynInstProto",O="useBaseInst",z="setInstFuncs",C=Object,I=C.getPrototypeOf,J=C.getOwnPropertyNames,N=(f=e,u=function(){var n=f,t=null;try{t=n()}catch(r){}return t},a={},s&&s(),a.b=i.lzy,l(a,"v",{configurable:!0,get:function(){var n=u();return i.lzy||(l(a,"v",{value:n}),a.b&&delete a.b),i.lzy&&a.b!==i.lzy&&(a.b=i.lzy),n}}),a.v),T=N[n]||(N[n]={o:((n={})[z]=!0,n[O]=!0,n),n:1e3});function S(n){return n&&(n===C[v]||n===Array[v])}function M(n){return S(n)||n===Function[v]}function $(n){if(n){if(I)return I(n);var t=n[G]||n[v]||(n[c]?n[c][v]:null),r=n[y]||t;d(n,y)||(delete n[p],r=n[y]=n[p]||n[y],n[p]=t)}return r}function j(n,t){var r=[];if(J)r=J(n);else for(var o in n)"string"==typeof o&&d(n,o)&&r.push(o);if(r&&0<r.length)for(var e=0;e<r.length;e++)t(r[e])}function k(n,t,r){return t!==c&&typeof n[t]===h&&(r||d(n,t))}function x(n){throw new TypeError("DynamicProto: "+n)}function D(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function F(n,t){return d(n,v)?n.name||t||E:((n||{})[c]||{}).name||t||E}function A(n,o,t,r){d(n,v)||x("theClass is an invalid class definition.");var e,i,f,u,a,l,s=n[v],c=(function(n){if(!I)return 1;for(var t=[],r=$(o);r&&!M(r)&&!D(t,r);){if(r===n)return 1;t.push(r),r=$(r)}}(s)||x("["+F(n)+"] not in hierarchy of ["+F(o)+"]"),null),n=(d(s,g)?c=s[g]:(c="_dynCls$"+F(n,"_")+"$"+T.n,T.n++,s[g]=c),A[m]),y=!!n[O],p=(y&&r&&r[O]!==undefined&&(y=!!r[O]),i={},j(e=o,function(n){!i[n]&&k(e,n,!1)&&(i[n]=e[n])}),i),y=(t(o,function(n,t,r,i){function o(n,t,r){var o,e=t[r];return e[b]&&i&&!1!==(o=n[_]||{})[P]&&(e=(o[t[g]]||{})[r]||e),function(){return e.apply(n,arguments)}}for(var e={},f=(j(r,function(n){e[n]=o(t,r,n)}),$(n)),u=[];f&&!M(f)&&!D(u,f);)j(f,function(n){!e[n]&&k(f,n,!I)&&(e[n]=o(t,f,n))}),u.push(f),f=$(f);return e}(s,o,p,y)),!!I&&!!n[z]);f=s,t=c,u=o,a=p,n=0!=(y&&r?!!r[z]:y),S(f)||(s=u[_]=u[_]||{},l=s[t]=s[t]||{},!1!==s[P]&&(s[P]=!!n),j(u,function(n){var r,o,e;k(u,n,!1)&&u[n]!==a[n]&&(l[n]=u[n],delete u[n],d(f,n)&&(!f[n]||f[n][b])||(f[n]=(r=f,o=n,(e=function(){var n,t;return(function(n,t,r,o){var e=null;if(n&&d(r,g)){var i=n[_]||{};if((e=(i[r[g]]||{})[t])||x("Missing ["+t+"] "+h),!e[w]&&!1!==i[P]){for(var f=!d(n,t),u=$(n),a=[];f&&u&&!M(u)&&!D(a,u);){var l=u[t];if(l){f=l===o;break}a.push(u),u=$(u)}try{f&&(n[t]=e),e[w]=1}catch(s){i[P]=!1}}}return e}(this,o,r,e)||(typeof(t=(t=r[n=o])===e?$(r)[n]:t)!==h&&x("["+n+"] is not a "+h),t)).apply(this,arguments)})[b]=1,e)))}))}return A[m]=T.o,A};"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):((n="undefined"!=typeof globalThis?globalThis:n||self).Microsoft=n.Microsoft||{},n.Microsoft["DynamicProto-JS"]=t());
+var n=this,t=function(){"use strict";var S=undefined,o=null,e="prototype",t="undefined",r="call",n=Object,J=n[e];function N(n){return J.toString[r](n)}function d(n,t){return n&&J.hasOwnProperty[r](n,t)}var i,A="__tsUtils$gblCfg";function B(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}function G(n,t){var r="";if(n&&"[object Error]"===N(n))r="{ stack: '"+n.stack+"', message: '"+n.message+"', name: '"+n.name+"'";else try{r=JSON.stringify(n,o,t?"number"==typeof t?t:4:S)}catch(e){r=" - "+G(e,t)}return N(n)+": "+r}var u,U,q,f,H=n.defineProperty,l=function(){var n;i||(n=B()||{},i=n[A]=n[A]||{}),u=i,l=o},v=n.create||function(n){if(!n)return{};var t=typeof n;if("object"!=t&&"function"!=t)throw new TypeError("Prototype must be an Object or function: "+G(n));function r(){}return r[e]=n,new r},a="constructor",h="prototype",b="function",g="_dynInstFuncs",_="_isDynProxy",m="_dynClass",w="_dynInstChk",P=w,K="_dfOpts",L="_unknown_",c="__proto__",s="_dyn"+c,n="__dynProto$Gbl",y="_dynInstProto",O="useBaseInst",j="setInstFuncs",p=Object,T=p.getPrototypeOf,Q=p.getOwnPropertyNames,R=(U=B,q=function(){var n=U,t=null;try{t=n()}catch(r){}return t},f={},l&&l(),f.b=u.lzy,H(f,"v",{configurable:!0,get:function(){var n=q();return u.lzy||(H(f,"v",{value:n}),f.b&&delete f.b),u.lzy&&f.b!==u.lzy&&(f.b=u.lzy),n}}),f.v),k=R[n]||(R[n]={o:((n={})[j]=!0,n[O]=!0,n),n:1e3});function z(n){return n&&(n===p[h]||n===Array[h])}function C(n){return z(n)||n===Function[h]}function I(n){if(n){if(T)return T(n);var t=n[c]||n[h]||(n[a]?n[a][h]:null),r=n[s]||t;d(n,s)||(delete n[y],r=n[s]=n[y]||n[s],n[y]=t)}return r}function M(n,t){var r=[];if(Q)r=Q(n);else for(var e in n)"string"==typeof e&&d(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function $(n,t,r){return t!==a&&typeof n[t]===b&&(r||d(n,t))&&t!==c&&t!==h}function x(n){throw new TypeError("DynamicProto: "+n)}function D(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function E(n,t){return d(n,h)?n.name||t||L:((n||{})[a]||{}).name||t||L}function F(n,e,t,r){d(n,h)||x("theClass is an invalid class definition.");var o,i,u,f,l,a,c=n[h],s=(function(n){if(!T)return 1;for(var t=[],r=I(e);r&&!C(r)&&!D(t,r);){if(r===n)return 1;t.push(r),r=I(r)}}(c)||x("["+E(n)+"] not in hierarchy of ["+E(e)+"]"),null),n=(d(c,m)?s=c[m]:(s="_dynCls$"+E(n,"_")+"$"+k.n,k.n++,c[m]=s),F[K]),y=!!n[O],p=(y&&r&&r[O]!==undefined&&(y=!!r[O]),o=e,i=v(null),M(o,function(n){!i[n]&&$(o,n,!1)&&(i[n]=o[n])}),i),y=(t(e,function(n,t,r,i){function e(n,t,r){var e,o=t[r];return o[_]&&i&&!1!==(e=n[g]||{})[P]&&(o=(e[t[m]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o=v(null),u=(M(r,function(n){o[n]=e(t,r,n)}),I(n)),f=[];u&&!C(u)&&!D(f,u);)M(u,function(n){!o[n]&&$(u,n,!T)&&(o[n]=e(t,u,n))}),f.push(u),u=I(u);return o}(c,e,p,y)),!!T&&!!n[j]);u=c,t=s,f=e,l=p,n=0!=(y&&r?!!r[j]:y),z(u)||z(c=f[g]=f[g]||v(null))||(a=c[t]=c[t]||v(null),!1!==c[P]&&(c[P]=!!n),z(a))||M(f,function(n){var r,e,o;$(f,n,!1)&&f[n]!==l[n]&&(a[n]=f[n],delete f[n],d(u,n)&&(!u[n]||u[n][_])||(u[n]=(r=u,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&d(r,m)){var i=n[g]||v(null);if((o=(i[r[m]]||v(null))[t])||x("Missing ["+t+"] "+b),!o[w]&&!1!==i[P]){for(var u=!d(n,t),f=I(n),l=[];u&&f&&!C(f)&&!D(l,f);){var a=f[t];if(a){u=a===e;break}l.push(f),f=I(f)}try{u&&(n[t]=o),o[w]=1}catch(c){i[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?I(r)[n]:t)!==b&&x("["+n+"] is not a "+b),t)).apply(this,arguments)})[_]=1,o)))})}return F[K]=k.o,F};"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):((n="undefined"!=typeof globalThis?globalThis:n||self).Microsoft=n.Microsoft||{},n.Microsoft["DynamicProto-JS"]=t());
 //# sourceMappingURL=dynamicproto-js.min.js.map

dist/es5/system/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
@@ -12,8 +12,15 @@ */
 
+            var UNDEF_VALUE = undefined;
+            var NULL_VALUE = null;
+            var EMPTY = "";
+            var FUNCTION = "function";
+            var NUMBER = "number";
+            var OBJECT = "object";
             var PROTOTYPE = "prototype";
             var UNDEFINED = "undefined";
+            var CALL = "call";
             var ObjClass = Object;
             var ObjProto = ObjClass[PROTOTYPE];
 
-            function _safeGet(cb, defValue) {
+            function safeGet(cb, defValue) {
                 var result = defValue;
@@ -28,4 +35,21 @@ try {
 
+            function _createIs(theType) {
+                return function (value) {
+                    return typeof value === theType;
+                };
+            }
+            function _createObjIs(theName) {
+                var theType = "[object " + theName + "]";
+                return function (value) {
+                    return !!(value && objToString(value) === theType);
+                };
+            }
+            function objToString(value) {
+                return ObjProto.toString[CALL](value);
+            }
+            var isNumber = ( _createIs(NUMBER));
+            var isError = ( _createObjIs("Error"));
+
             function objHasOwnProperty(obj, prop) {
-                return obj && ObjProto.hasOwnProperty.call(obj, prop);
+                return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
             }
@@ -63,2 +87,18 @@
 
+            function dumpObj(object, format) {
+                var propertyValueDump = EMPTY;
+                if (isError(object)) {
+                    propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+                }
+                else {
+                    try {
+                        propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+                    }
+                    catch (e) {
+                        propertyValueDump = " - " + dumpObj(e, format);
+                    }
+                }
+                return objToString(object) + ": " + propertyValueDump;
+            }
+
             var objDefineProp = ObjClass["defineProperty"];
@@ -69,3 +109,3 @@
                 _globalLazyTestHooks = _getGlobalConfig();
-                _fetchLazyTestHooks = null;
+                _fetchLazyTestHooks = NULL_VALUE;
             };
@@ -97,4 +137,4 @@ function getLazy(cb) {
 
-            function _lazySafeGet(cb, defValue) {
-                return getLazy(function () { return _safeGet(cb, defValue); });
+            function safeGetLazy(cb, defValue) {
+                return getLazy(function () { return safeGet(cb, defValue); });
             }
@@ -104,6 +144,20 @@
             function getGlobal(useCached) {
-                (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+                (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
                 return _cachedGlobal.v;
             }
 
+            var objCreate = ObjClass["create"] || polyObjCreate;
+            function polyObjCreate(obj) {
+                if (!obj) {
+                    return {};
+                }
+                var type = typeof obj;
+                if (type !== OBJECT && type !== FUNCTION) {
+                    throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+                }
+                function tempFunc() { }
+                tempFunc[PROTOTYPE] = obj;
+                return new tempFunc();
+            }
+
             var _a;
@@ -179,3 +233,3 @@ var Constructor = 'constructor';
             function _isDynamicCandidate(target, funcName, skipOwn) {
-                return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+                return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
             }
@@ -186,3 +240,3 @@ function _throwTypeError(message) {
             function _getInstanceFuncs(thisTarget) {
-                var instFuncs = {};
+                var instFuncs = objCreate(null);
                 _forEachProp(thisTarget, function (name) {
@@ -216,3 +270,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
                 }
-                var baseFuncs = {};
+                var baseFuncs = objCreate(null);
                 _forEachProp(instFuncs, function (name) {
@@ -237,4 +291,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
                 if (target && objHasOwnProperty(proto, DynClassName)) {
-                    var instFuncTable = target[DynInstFuncTable] || {};
-                    instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+                    var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+                    instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
                     if (!instFunc) {
@@ -289,16 +343,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
                 if (!_isObjectOrArrayPrototype(proto)) {
-                    var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-                    var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-                    if (instFuncTable[DynAllowInstChkTag] !== false) {
-                        instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+                    var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+                    if (!_isObjectOrArrayPrototype(instFuncTable)) {
+                        var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+                        if (instFuncTable[DynAllowInstChkTag] !== false) {
+                            instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+                        }
+                        if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                            _forEachProp(target, function (name) {
+                                if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                                    instFuncs_1[name] = target[name];
+                                    delete target[name];
+                                    if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                                        proto[name] = _createDynamicPrototype(proto, name);
+                                    }
+                                }
+                            });
+                        }
                     }
-                    _forEachProp(target, function (name) {
-                        if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                            instFuncs_1[name] = target[name];
-                            delete target[name];
-                            if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                                proto[name] = _createDynamicPrototype(proto, name);
-                            }
-                        }
-                    });
                 }
@@ -305,0 +363,0 @@ }

dist/es5/system/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
-System.register("Microsoft.DynamicProto-JS",[],function(q){"use strict";return{execute:function(){q("default",S);var t="undefined",n=Object,A=n.prototype;function p(n,t){return n&&A.hasOwnProperty.call(n,t)}var r,e="__tsUtils$gblCfg";function o(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}var i,u,f,a,c=n.defineProperty,l=function(){var n;r||(n=o()||{},r=n[e]=n[e]||{}),i=r,l=null},s="constructor",d="prototype",h="function",_="_dynInstFuncs",g="_isDynProxy",b="_dynClass",B="_dynCls$",w="_dynInstChk",P=w,m="_dfOpts",E="_unknown_",G="__proto__",y="_dyn"+G,n="__dynProto$Gbl",v="_dynInstProto",O="useBaseInst",z="setInstFuncs",C=Object,I=C.getPrototypeOf,J=C.getOwnPropertyNames,N=(u=o,f=function(){var n=u,t=null;try{t=n()}catch(r){}return t},a={},l&&l(),a.b=i.lzy,c(a,"v",{configurable:!0,get:function(){var n=f();return i.lzy||(c(a,"v",{value:n}),a.b&&delete a.b),i.lzy&&a.b!==i.lzy&&(a.b=i.lzy),n}}),a.v),$=N[n]||(N[n]={o:((n={})[z]=!0,n[O]=!0,n),n:1e3});function U(n){return n&&(n===C[d]||n===Array[d])}function k(n){return U(n)||n===Function[d]}function D(n){if(n){if(I)return I(n);var t=n[G]||n[d]||(n[s]?n[s][d]:null),r=n[y]||t;p(n,y)||(delete n[v],r=n[y]=n[v]||n[y],n[v]=t)}return r}function F(n,t){var r=[];if(J)r=J(n);else for(var e in n)"string"==typeof e&&p(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function T(n,t,r){return t!==s&&typeof n[t]===h&&(r||p(n,t))}function j(n){throw new TypeError("DynamicProto: "+n)}function x(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function M(n,t){return p(n,d)?n.name||t||E:((n||{})[s]||{}).name||t||E}function S(n,e,t,r){p(n,d)||j("theClass is an invalid class definition.");var o,i,u,f,a,c,l=n[d],s=(function(n){if(!I)return 1;for(var t=[],r=D(e);r&&!k(r)&&!x(t,r);){if(r===n)return 1;t.push(r),r=D(r)}}(l)||j("["+M(n)+"] not in hierarchy of ["+M(e)+"]"),null),n=(p(l,b)?s=l[b]:(s=B+M(n,"_")+"$"+$.n,$.n++,l[b]=s),S[m]),y=!!n[O],v=(y&&r&&r[O]!==undefined&&(y=!!r[O]),i={},F(o=e,function(n){!i[n]&&T(o,n,!1)&&(i[n]=o[n])}),i),y=(t(e,function(n,t,r,i){function e(n,t,r){var e,o=t[r];return o[g]&&i&&!1!==(e=n[_]||{})[P]&&(o=(e[t[b]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o={},u=(F(r,function(n){o[n]=e(t,r,n)}),D(n)),f=[];u&&!k(u)&&!x(f,u);)F(u,function(n){!o[n]&&T(u,n,!I)&&(o[n]=e(t,u,n))}),f.push(u),u=D(u);return o}(l,e,v,y)),!!I&&!!n[z]);u=l,t=s,f=e,a=v,n=0!=(y&&r?!!r[z]:y),U(u)||(l=f[_]=f[_]||{},c=l[t]=l[t]||{},!1!==l[P]&&(l[P]=!!n),F(f,function(n){var r,e,o;T(f,n,!1)&&f[n]!==a[n]&&(c[n]=f[n],delete f[n],p(u,n)&&(!u[n]||u[n][g])||(u[n]=(r=u,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&p(r,b)){var i=n[_]||{};if((o=(i[r[b]]||{})[t])||j("Missing ["+t+"] "+h),!o[w]&&!1!==i[P]){for(var u=!p(n,t),f=D(n),a=[];u&&f&&!k(f)&&!x(a,f);){var c=f[t];if(c){u=c===e;break}a.push(f),f=D(f)}try{u&&(n[t]=o),o[w]=1}catch(l){i[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?D(r)[n]:t)!==h&&j("["+n+"] is not a "+h),t)).apply(this,arguments)})[g]=1,o)))}))}S[m]=$.o}}});
+System.register("Microsoft.DynamicProto-JS",[],function(W){"use strict";return{execute:function(){W("default",x);var J=undefined,o=null,e="prototype",t="undefined",r="call",n=Object,M=n[e];function N(n){return M.toString[r](n)}function v(n,t){return n&&M.hasOwnProperty[r](n,t)}var u,A="__tsUtils$gblCfg";function B(){var n;return(n=(n=(n=typeof globalThis!=t?globalThis:n)||typeof self==t?n:self)||typeof window==t?n:window)||typeof global==t?n:global}function G(n,t){var r="";if(n&&"[object Error]"===N(n))r="{ stack: '"+n.stack+"', message: '"+n.message+"', name: '"+n.name+"'";else try{r=JSON.stringify(n,o,t?"number"==typeof t?t:4:J)}catch(e){r=" - "+G(e,t)}return N(n)+": "+r}var i,U,q,f,H=n.defineProperty,a=function(){var n;u||(n=B()||{},u=n[A]=n[A]||{}),i=u,a=o},d=n.create||function(n){if(!n)return{};var t=typeof n;if("object"!=t&&"function"!=t)throw new TypeError("Prototype must be an Object or function: "+G(n));function r(){}return r[e]=n,new r},c="constructor",h="prototype",b="function",g="_dynInstFuncs",_="_isDynProxy",m="_dynClass",K="_dynCls$",w="_dynInstChk",P=w,L="_dfOpts",Q="_unknown_",l="__proto__",s="_dyn"+l,n="__dynProto$Gbl",y="_dynInstProto",O="useBaseInst",j="setInstFuncs",p=Object,k=p.getPrototypeOf,R=p.getOwnPropertyNames,V=(U=B,q=function(){var n=U,t=null;try{t=n()}catch(r){}return t},f={},a&&a(),f.b=i.lzy,H(f,"v",{configurable:!0,get:function(){var n=q();return i.lzy||(H(f,"v",{value:n}),f.b&&delete f.b),i.lzy&&f.b!==i.lzy&&(f.b=i.lzy),n}}),f.v),z=V[n]||(V[n]={o:((n={})[j]=!0,n[O]=!0,n),n:1e3});function C(n){return n&&(n===p[h]||n===Array[h])}function I(n){return C(n)||n===Function[h]}function S(n){if(n){if(k)return k(n);var t=n[l]||n[h]||(n[c]?n[c][h]:null),r=n[s]||t;v(n,s)||(delete n[y],r=n[s]=n[y]||n[s],n[y]=t)}return r}function T(n,t){var r=[];if(R)r=R(n);else for(var e in n)"string"==typeof e&&v(n,e)&&r.push(e);if(r&&0<r.length)for(var o=0;o<r.length;o++)t(r[o])}function $(n,t,r){return t!==c&&typeof n[t]===b&&(r||v(n,t))&&t!==l&&t!==h}function D(n){throw new TypeError("DynamicProto: "+n)}function E(n,t){for(var r=n.length-1;0<=r;r--)if(n[r]===t)return 1}function F(n,t){return v(n,h)?n.name||t||Q:((n||{})[c]||{}).name||t||Q}function x(n,e,t,r){v(n,h)||D("theClass is an invalid class definition.");var o,u,i,f,a,c,l=n[h],s=(function(n){if(!k)return 1;for(var t=[],r=S(e);r&&!I(r)&&!E(t,r);){if(r===n)return 1;t.push(r),r=S(r)}}(l)||D("["+F(n)+"] not in hierarchy of ["+F(e)+"]"),null),n=(v(l,m)?s=l[m]:(s=K+F(n,"_")+"$"+z.n,z.n++,l[m]=s),x[L]),y=!!n[O],p=(y&&r&&r[O]!==undefined&&(y=!!r[O]),o=e,u=d(null),T(o,function(n){!u[n]&&$(o,n,!1)&&(u[n]=o[n])}),u),y=(t(e,function(n,t,r,u){function e(n,t,r){var e,o=t[r];return o[_]&&u&&!1!==(e=n[g]||{})[P]&&(o=(e[t[m]]||{})[r]||o),function(){return o.apply(n,arguments)}}for(var o=d(null),i=(T(r,function(n){o[n]=e(t,r,n)}),S(n)),f=[];i&&!I(i)&&!E(f,i);)T(i,function(n){!o[n]&&$(i,n,!k)&&(o[n]=e(t,i,n))}),f.push(i),i=S(i);return o}(l,e,p,y)),!!k&&!!n[j]);i=l,t=s,f=e,a=p,n=0!=(y&&r?!!r[j]:y),C(i)||C(l=f[g]=f[g]||d(null))||(c=l[t]=l[t]||d(null),!1!==l[P]&&(l[P]=!!n),C(c))||T(f,function(n){var r,e,o;$(f,n,!1)&&f[n]!==a[n]&&(c[n]=f[n],delete f[n],v(i,n)&&(!i[n]||i[n][_])||(i[n]=(r=i,e=n,(o=function(){var n,t;return(function(n,t,r,e){var o=null;if(n&&v(r,m)){var u=n[g]||d(null);if((o=(u[r[m]]||d(null))[t])||D("Missing ["+t+"] "+b),!o[w]&&!1!==u[P]){for(var i=!v(n,t),f=S(n),a=[];i&&f&&!I(f)&&!E(a,f);){var c=f[t];if(c){i=c===e;break}a.push(f),f=S(f)}try{i&&(n[t]=o),o[w]=1}catch(l){u[P]=!1}}}return o}(this,e,r,o)||(typeof(t=(t=r[n=e])===o?S(r)[n]:t)!==b&&D("["+n+"] is not a "+b),t)).apply(this,arguments)})[_]=1,o)))})}x[L]=z.o}}});
 //# sourceMappingURL=dynamicproto-js.min.js.map

dist/es5/umd/dynamicproto-js.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
@@ -11,8 +11,15 @@ */
 
+    var UNDEF_VALUE = undefined;
+    var NULL_VALUE = null;
+    var EMPTY = "";
+    var FUNCTION = "function";
+    var NUMBER = "number";
+    var OBJECT = "object";
     var PROTOTYPE = "prototype";
     var UNDEFINED = "undefined";
+    var CALL = "call";
     var ObjClass = Object;
     var ObjProto = ObjClass[PROTOTYPE];
 
-    function _safeGet(cb, defValue) {
+    function safeGet(cb, defValue) {
         var result = defValue;
@@ -27,4 +34,21 @@ try {
 
+    function _createIs(theType) {
+        return function (value) {
+            return typeof value === theType;
+        };
+    }
+    function _createObjIs(theName) {
+        var theType = "[object " + theName + "]";
+        return function (value) {
+            return !!(value && objToString(value) === theType);
+        };
+    }
+    function objToString(value) {
+        return ObjProto.toString[CALL](value);
+    }
+    var isNumber = ( _createIs(NUMBER));
+    var isError = ( _createObjIs("Error"));
+
     function objHasOwnProperty(obj, prop) {
-        return obj && ObjProto.hasOwnProperty.call(obj, prop);
+        return obj && ObjProto.hasOwnProperty[CALL](obj, prop);
     }
@@ -62,2 +86,18 @@
 
+    function dumpObj(object, format) {
+        var propertyValueDump = EMPTY;
+        if (isError(object)) {
+            propertyValueDump = "{ stack: '" + object.stack + "', message: '" + object.message + "', name: '" + object.name + "'";
+        }
+        else {
+            try {
+                propertyValueDump = JSON.stringify(object, NULL_VALUE, format ? (isNumber(format) ? format : 4) : UNDEF_VALUE);
+            }
+            catch (e) {
+                propertyValueDump = " - " + dumpObj(e, format);
+            }
+        }
+        return objToString(object) + ": " + propertyValueDump;
+    }
+
     var objDefineProp = ObjClass["defineProperty"];
@@ -68,3 +108,3 @@
         _globalLazyTestHooks = _getGlobalConfig();
-        _fetchLazyTestHooks = null;
+        _fetchLazyTestHooks = NULL_VALUE;
     };
@@ -96,4 +136,4 @@ function getLazy(cb) {
 
-    function _lazySafeGet(cb, defValue) {
-        return getLazy(function () { return _safeGet(cb, defValue); });
+    function safeGetLazy(cb, defValue) {
+        return getLazy(function () { return safeGet(cb, defValue); });
     }
@@ -103,6 +143,20 @@
     function getGlobal(useCached) {
-        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = _lazySafeGet(_getGlobalValue, null));
+        (!_cachedGlobal || useCached === false || (_globalLazyTestHooks && _globalLazyTestHooks.lzy && !_cachedGlobal.b)) && (_cachedGlobal = safeGetLazy(_getGlobalValue, NULL_VALUE));
         return _cachedGlobal.v;
     }
 
+    var objCreate = ObjClass["create"] || polyObjCreate;
+    function polyObjCreate(obj) {
+        if (!obj) {
+            return {};
+        }
+        var type = typeof obj;
+        if (type !== OBJECT && type !== FUNCTION) {
+            throw new TypeError("Prototype must be an Object or function: " + dumpObj(obj));
+        }
+        function tempFunc() { }
+        tempFunc[PROTOTYPE] = obj;
+        return new tempFunc();
+    }
+
     var _a;
@@ -178,3 +232,3 @@ var Constructor = 'constructor';
     function _isDynamicCandidate(target, funcName, skipOwn) {
-        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)));
+        return (funcName !== Constructor && typeof target[funcName] === strFunction && (skipOwn || objHasOwnProperty(target, funcName)) && funcName !== str__Proto && funcName !== Prototype);
     }
@@ -185,3 +239,3 @@ function _throwTypeError(message) {
     function _getInstanceFuncs(thisTarget) {
-        var instFuncs = {};
+        var instFuncs = objCreate(null);
         _forEachProp(thisTarget, function (name) {
@@ -215,3 +269,3 @@ if (!instFuncs[name] && _isDynamicCandidate(thisTarget, name, false)) {
         }
-        var baseFuncs = {};
+        var baseFuncs = objCreate(null);
         _forEachProp(instFuncs, function (name) {
@@ -236,4 +290,4 @@ baseFuncs[name] = _instFuncProxy(thisTarget, instFuncs, name);
         if (target && objHasOwnProperty(proto, DynClassName)) {
-            var instFuncTable = target[DynInstFuncTable] || {};
-            instFunc = (instFuncTable[proto[DynClassName]] || {})[funcName];
+            var instFuncTable = target[DynInstFuncTable] || objCreate(null);
+            instFunc = (instFuncTable[proto[DynClassName]] || objCreate(null))[funcName];
             if (!instFunc) {
@@ -288,16 +342,20 @@ _throwTypeError("Missing [" + funcName + "] " + strFunction);
         if (!_isObjectOrArrayPrototype(proto)) {
-            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || {};
-            var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || {});
-            if (instFuncTable[DynAllowInstChkTag] !== false) {
-                instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+            var instFuncTable = target[DynInstFuncTable] = target[DynInstFuncTable] || objCreate(null);
+            if (!_isObjectOrArrayPrototype(instFuncTable)) {
+                var instFuncs_1 = instFuncTable[className] = (instFuncTable[className] || objCreate(null));
+                if (instFuncTable[DynAllowInstChkTag] !== false) {
+                    instFuncTable[DynAllowInstChkTag] = !!setInstanceFunc;
+                }
+                if (!_isObjectOrArrayPrototype(instFuncs_1)) {
+                    _forEachProp(target, function (name) {
+                        if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
+                            instFuncs_1[name] = target[name];
+                            delete target[name];
+                            if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
+                                proto[name] = _createDynamicPrototype(proto, name);
+                            }
+                        }
+                    });
+                }
             }
-            _forEachProp(target, function (name) {
-                if (_isDynamicCandidate(target, name, false) && target[name] !== baseInstFuncs[name]) {
-                    instFuncs_1[name] = target[name];
-                    delete target[name];
-                    if (!objHasOwnProperty(proto, name) || (proto[name] && !proto[name][DynProxyTag])) {
-                        proto[name] = _createDynamicPrototype(proto, name);
-                    }
-                }
-            });
         }
@@ -304,0 +362,0 @@ }

dist/es5/umd/dynamicproto-js.min.js

 /*!
- * Microsoft Dynamic Proto Utility, 2.0.2
+ * Microsoft Dynamic Proto Utility, 2.0.3
  * Copyright (c) Microsoft and contributors. All rights reserved.
  */
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 //# sourceMappingURL=dynamicproto-js.min.js.map

package.json

 {
   "name": "@microsoft/dynamicproto-js",
   "author": "Microsoft Application Insights Team",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "description": "Microsoft Dynamic Proto Utility",
@@ -42,3 +42,3 @@ "keywords": [
   "dependencies": {
-    "@nevware21/ts-utils": ">= 0.9.4 < 2.x"
+    "@nevware21/ts-utils": ">= 0.10.4 < 2.x"
   },
@@ -45,0 +45,0 @@ "devDependencies": {

tools/rollup/package.json

@@ -37,3 +37,3 @@ {
   "dependencies": {
-    "@nevware21/ts-utils": ">= 0.9.4 < 2.x"
+    "@nevware21/ts-utils": ">= 0.10.4 < 2.x"
   },
@@ -40,0 +40,0 @@ "devDependencies": {

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increased by37.2%

Lines of code

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increased by8.21%

Dependency changes

• Updated@nevware21/ts-utils@>= 0.10.4 < 2.x