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microsoft · Nov 25, 2016 · f968f1b · f968f1b
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diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
@@ -3338,7 +3338,11 @@ namespace ts {
         priority: 0,
         text: `
             var __extends = (this && this.__extends) || function (d, b) {
-                Object.setPrototypeOf(d, b);
+                if (typeof Object.setPrototypeOf === "function") {
+                    Object.setPrototypeOf(d, b);
+                } else {
+                    d.__proto__ = b;
+                }
                 function __() { this.constructor = d; }
                 d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
             };`

diff --git a/...assWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js b/...assWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js
@@ -22,7 +22,11 @@ module A {
 
 //// [ExportClassWithAccessibleTypesInTypeParameterConstraintsClassHeritageListMemberTypeAnnotations.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js b/tests/baselines/reference/ExportClassWithInaccessibleTypeInTypeParameterConstraint.js
@@ -26,7 +26,11 @@ module A {
 
 //// [ExportClassWithInaccessibleTypeInTypeParameterConstraint.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/abstractClassInLocalScope.js b/tests/baselines/reference/abstractClassInLocalScope.js
@@ -9,7 +9,11 @@
 
 //// [abstractClassInLocalScope.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js b/tests/baselines/reference/abstractClassInLocalScopeIsAbstract.js
@@ -9,7 +9,11 @@
 
 //// [abstractClassInLocalScopeIsAbstract.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/abstractProperty.js b/tests/baselines/reference/abstractProperty.js
@@ -23,7 +23,11 @@ class C extends B {
 
 //// [abstractProperty.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/abstractPropertyNegative.js b/tests/baselines/reference/abstractPropertyNegative.js
@@ -45,7 +45,11 @@ abstract class AbstractAccessorMismatch {
 
 //// [abstractPropertyNegative.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/accessOverriddenBaseClassMember1.js b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
@@ -17,7 +17,11 @@ class ColoredPoint extends Point {
 
 //// [accessOverriddenBaseClassMember1.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/accessors_spec_section-4.5_inference.js b/tests/baselines/reference/accessors_spec_section-4.5_inference.js
@@ -26,7 +26,11 @@ class LanguageSpec_section_4_5_inference {
 
 //// [accessors_spec_section-4.5_inference.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInAccessorsOfClass.js b/tests/baselines/reference/aliasUsageInAccessorsOfClass.js
@@ -38,7 +38,11 @@ exports.Model = Model;
 //// [aliasUsage1_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInArray.js b/tests/baselines/reference/aliasUsageInArray.js
@@ -32,7 +32,11 @@ exports.Model = Model;
 //// [aliasUsageInArray_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInFunctionExpression.js b/tests/baselines/reference/aliasUsageInFunctionExpression.js
@@ -31,7 +31,11 @@ exports.Model = Model;
 //// [aliasUsageInFunctionExpression_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInGenericFunction.js b/tests/baselines/reference/aliasUsageInGenericFunction.js
@@ -35,7 +35,11 @@ exports.Model = Model;
 //// [aliasUsageInGenericFunction_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInIndexerOfClass.js b/tests/baselines/reference/aliasUsageInIndexerOfClass.js
@@ -37,7 +37,11 @@ exports.Model = Model;
 //// [aliasUsageInIndexerOfClass_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInObjectLiteral.js b/tests/baselines/reference/aliasUsageInObjectLiteral.js
@@ -32,7 +32,11 @@ exports.Model = Model;
 //// [aliasUsageInObjectLiteral_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInOrExpression.js b/tests/baselines/reference/aliasUsageInOrExpression.js
@@ -35,7 +35,11 @@ exports.Model = Model;
 //// [aliasUsageInOrExpression_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js b/tests/baselines/reference/aliasUsageInTypeArgumentOfExtendsClause.js
@@ -35,7 +35,11 @@ exports.Model = Model;
 //// [aliasUsageInTypeArgumentOfExtendsClause_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };
@@ -51,7 +55,11 @@ exports.VisualizationModel = VisualizationModel;
 //// [aliasUsageInTypeArgumentOfExtendsClause_main.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/aliasUsageInVarAssignment.js b/tests/baselines/reference/aliasUsageInVarAssignment.js
@@ -31,7 +31,11 @@ exports.Model = Model;
 //// [aliasUsageInVarAssignment_moduleA.js]
 "use strict";
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/ambiguousOverloadResolution.js b/tests/baselines/reference/ambiguousOverloadResolution.js
@@ -10,7 +10,11 @@ var t: number = f(x, x); // Not an error
 
 //// [ambiguousOverloadResolution.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/apparentTypeSubtyping.js b/tests/baselines/reference/apparentTypeSubtyping.js
@@ -25,7 +25,11 @@ class Derived2<U extends String> extends Base2 { // error because of the prototy
 // subtype checks use the apparent type of the target type
 // S is a subtype of a type T, and T is a supertype of S, if one of the following is true, where S' denotes the apparent type (section 3.8.1) of S:
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/apparentTypeSupertype.js b/tests/baselines/reference/apparentTypeSupertype.js
@@ -15,7 +15,11 @@ class Derived<U extends String> extends Base { // error
 // subtype checks use the apparent type of the target type
 // S is a subtype of a type T, and T is a supertype of S, if one of the following is true, where S' denotes the apparent type (section 3.8.1) of S:
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayAssignmentTest1.js b/tests/baselines/reference/arrayAssignmentTest1.js
@@ -87,7 +87,11 @@ arr_any = i1; // should be an error - is
 
 //// [arrayAssignmentTest1.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayAssignmentTest2.js b/tests/baselines/reference/arrayAssignmentTest2.js
@@ -61,7 +61,11 @@ arr_any = i1; // should be an error - is
 
 //// [arrayAssignmentTest2.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayBestCommonTypes.js b/tests/baselines/reference/arrayBestCommonTypes.js
@@ -109,7 +109,11 @@ module NonEmptyTypes {
 
 //// [arrayBestCommonTypes.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayLiteralTypeInference.js b/tests/baselines/reference/arrayLiteralTypeInference.js
@@ -53,7 +53,11 @@ var z3: { id: number }[] =
 
 //// [arrayLiteralTypeInference.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayLiterals.js b/tests/baselines/reference/arrayLiterals.js
@@ -39,7 +39,11 @@ var context4: Base[] = [new Derived1(), new Derived1()];
 //// [arrayLiterals.js]
 // Empty array literal with no contextual type has type Undefined[]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js b/tests/baselines/reference/arrayLiteralsWithRecursiveGenerics.js
@@ -27,7 +27,11 @@ var as = [list, myDerivedList]; // List<number>[]
 
 //// [arrayLiteralsWithRecursiveGenerics.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrayOfSubtypeIsAssignableToReadonlyArray.js b/tests/baselines/reference/arrayOfSubtypeIsAssignableToReadonlyArray.js
@@ -21,7 +21,11 @@ rrb = cra; // error: 'A' is not assignable to 'B'
 
 //// [arrayOfSubtypeIsAssignableToReadonlyArray.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };

diff --git a/tests/baselines/reference/arrowFunctionContexts.js b/tests/baselines/reference/arrowFunctionContexts.js
@@ -98,7 +98,11 @@ var asserted2: any;
 
 //// [arrowFunctionContexts.js]
 var __extends = (this && this.__extends) || function (d, b) {
-    Object.setPrototypeOf(d, b);
+    if (typeof Object.setPrototypeOf === "function") {
+        Object.setPrototypeOf(d, b);
+    } else {
+        d.__proto__ = b;
+    }
     function __() { this.constructor = d; }
     d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
 };