From 59f274c821d55def66d48160d0e215412a871dcf Mon Sep 17 00:00:00 2001
From: Yadd <yadd@debian.org>
Date: Wed, 14 Sep 2022 16:43:42 +0200
Subject: [PATCH] Don't use __proto__ in transpilation

---
 src/program/Program.js                        |  2 +-
 src/program/types/ClassBody.js                |  4 +-
 src/program/wrap.js                           |  2 +-
 .../classes-no-named-function-expressions.js  | 34 ++++++++---------
 test/samples/classes.js                       | 38 +++++++++----------
 5 files changed, 40 insertions(+), 40 deletions(-)

diff --git a/src/program/Program.js b/src/program/Program.js
index c13d2edd..fde50aac 100644
--- a/src/program/Program.js
+++ b/src/program/Program.js
@@ -17,7 +17,7 @@ export default function Program(source, ast, transforms, options) {
 	this.depth = 0;
 
 	wrap((this.body = ast), this);
-	this.body.__proto__ = BlockStatement.prototype;
+	Object.setPrototypeOf(this.body, BlockStatement.prototype);
 
 	this.templateLiteralQuasis = Object.create(null);
 	for (let i = 0; i < this.body.body.length; ++i) {
diff --git a/src/program/types/ClassBody.js b/src/program/types/ClassBody.js
index 054f00c9..ad87cfdd 100644
--- a/src/program/types/ClassBody.js
+++ b/src/program/types/ClassBody.js
@@ -56,9 +56,9 @@ export default class ClassBody extends Node {
 				this.parent.superClass ||
 				this.parent.type !== 'ClassDeclaration';
 			if (this.parent.superClass) {
-				let inheritanceBlock = `if ( ${superName} ) ${name}.__proto__ = ${
+				let inheritanceBlock = `if ( ${superName} ) Object.setPrototypeOf(${name}, ${
 					superName
-				};\n${i0}${name}.prototype = Object.create( ${superName} && ${
+				});\n${i0}${name}.prototype = Object.create( ${superName} && ${
 					superName
 				}.prototype );\n${i0}${name}.prototype.constructor = ${name};`;
 
diff --git a/src/program/wrap.js b/src/program/wrap.js
index 5144753f..9feda5c9 100644
--- a/src/program/wrap.js
+++ b/src/program/wrap.js
@@ -64,5 +64,5 @@ export default function wrap(raw, parent) {
 
 	const type =
 		(raw.type === 'BlockStatement' ? BlockStatement : types[raw.type]) || Node;
-	raw.__proto__ = type.prototype;
+	Object.setPrototypeOf(raw, type.prototype);
 }
diff --git a/test/samples/classes-no-named-function-expressions.js b/test/samples/classes-no-named-function-expressions.js
index 09adaa74..cd2860d5 100644
--- a/test/samples/classes-no-named-function-expressions.js
+++ b/test/samples/classes-no-named-function-expressions.js
@@ -128,7 +128,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -163,7 +163,7 @@ module.exports = [
 					this.y = 'z';
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -201,7 +201,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -273,7 +273,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -305,7 +305,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -523,7 +523,7 @@ module.exports = [
 					this.radius = radius;
 				}
 
-				if ( Shape ) Circle.__proto__ = Shape;
+				if ( Shape ) Object.setPrototypeOf(Circle, Shape);
 				Circle.prototype = Object.create( Shape && Shape.prototype );
 				Circle.prototype.constructor = Circle;
 
@@ -596,7 +596,7 @@ module.exports = [
 					superclass.apply(this, arguments);
 				}
 
-				if ( superclass ) b.__proto__ = superclass;
+				if ( superclass ) Object.setPrototypeOf(b, superclass);
 				b.prototype = Object.create( superclass && superclass.prototype );
 				b.prototype.constructor = b;
 
@@ -629,7 +629,7 @@ module.exports = [
 					superclass.apply(this, arguments);
 				}
 
-				if ( superclass ) b.__proto__ = superclass;
+				if ( superclass ) Object.setPrototypeOf(b, superclass);
 				b.prototype = Object.create( superclass && superclass.prototype );
 				b.prototype.constructor = b;
 
@@ -656,7 +656,7 @@ module.exports = [
 					superclass.call(this);
 				}
 
-				if ( superclass ) b.__proto__ = superclass;
+				if ( superclass ) Object.setPrototypeOf(b, superclass);
 				b.prototype = Object.create( superclass && superclass.prototype );
 				b.prototype.constructor = b;
 
@@ -681,7 +681,7 @@ module.exports = [
 					SuperClass.call(this);
 				}
 
-				if ( SuperClass ) SubClass.__proto__ = SuperClass;
+				if ( SuperClass ) Object.setPrototypeOf(SubClass, SuperClass);
 				SubClass.prototype = Object.create( SuperClass && SuperClass.prototype );
 				SubClass.prototype.constructor = SubClass;
 
@@ -756,7 +756,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -807,7 +807,7 @@ module.exports = [
 					D.apply(this, arguments);
 				}
 
-				if ( D ) C.__proto__ = D;
+				if ( D ) Object.setPrototypeOf(C, D);
 				C.prototype = Object.create( D && D.prototype );
 				C.prototype.constructor = C;
 
@@ -821,7 +821,7 @@ module.exports = [
 					F.apply(this, arguments);
 				}
 
-				if ( F ) E.__proto__ = F;
+				if ( F ) Object.setPrototypeOf(E, F);
 				E.prototype = Object.create( F && F.prototype );
 				E.prototype.constructor = E;
 
@@ -940,7 +940,7 @@ module.exports = [
 					render();
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -972,7 +972,7 @@ module.exports = [
 					SuperClass.apply( this, args );
 				}
 
-				if ( SuperClass ) SubClass.__proto__ = SuperClass;
+				if ( SuperClass ) Object.setPrototypeOf(SubClass, SuperClass);
 				SubClass.prototype = Object.create( SuperClass && SuperClass.prototype );
 				SubClass.prototype.constructor = SubClass;
 
@@ -1000,7 +1000,7 @@ module.exports = [
 					SuperClass.apply( this, [ 1 ].concat( args, [2] ) );
 				}
 
-				if ( SuperClass ) SubClass.__proto__ = SuperClass;
+				if ( SuperClass ) Object.setPrototypeOf(SubClass, SuperClass);
 				SubClass.prototype = Object.create( SuperClass && SuperClass.prototype );
 				SubClass.prototype.constructor = SubClass;
 
@@ -1135,7 +1135,7 @@ module.exports = [
 					});
 				}
 
-				if ( B ) A.__proto__ = B;
+				if ( B ) Object.setPrototypeOf(A, B);
 				A.prototype = Object.create( B && B.prototype );
 				A.prototype.constructor = A;
 
diff --git a/test/samples/classes.js b/test/samples/classes.js
index 78ed8af5..1c0cbff0 100644
--- a/test/samples/classes.js
+++ b/test/samples/classes.js
@@ -122,7 +122,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -156,7 +156,7 @@ module.exports = [
 					this.y = 'z';
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -193,7 +193,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -259,7 +259,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -288,7 +288,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -521,7 +521,7 @@ module.exports = [
 					this.radius = radius;
 				}
 
-				if ( Shape ) Circle.__proto__ = Shape;
+				if ( Shape ) Object.setPrototypeOf(Circle, Shape);
 				Circle.prototype = Object.create( Shape && Shape.prototype );
 				Circle.prototype.constructor = Circle;
 
@@ -590,7 +590,7 @@ module.exports = [
 					superclass.apply(this, arguments);
 				}
 
-				if ( superclass ) b.__proto__ = superclass;
+				if ( superclass ) Object.setPrototypeOf(b, superclass);
 				b.prototype = Object.create( superclass && superclass.prototype );
 				b.prototype.constructor = b;
 
@@ -622,7 +622,7 @@ module.exports = [
 					superclass.apply(this, arguments);
 				}
 
-				if ( superclass ) b.__proto__ = superclass;
+				if ( superclass ) Object.setPrototypeOf(b, superclass);
 				b.prototype = Object.create( superclass && superclass.prototype );
 				b.prototype.constructor = b;
 
@@ -648,7 +648,7 @@ module.exports = [
 					superclass.call(this);
 				}
 
-				if ( superclass ) b.__proto__ = superclass;
+				if ( superclass ) Object.setPrototypeOf(b, superclass);
 				b.prototype = Object.create( superclass && superclass.prototype );
 				b.prototype.constructor = b;
 
@@ -672,7 +672,7 @@ module.exports = [
 					SuperClass.call(this);
 				}
 
-				if ( SuperClass ) SubClass.__proto__ = SuperClass;
+				if ( SuperClass ) Object.setPrototypeOf(SubClass, SuperClass);
 				SubClass.prototype = Object.create( SuperClass && SuperClass.prototype );
 				SubClass.prototype.constructor = SubClass;
 
@@ -744,7 +744,7 @@ module.exports = [
 					Bar.apply(this, arguments);
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -794,7 +794,7 @@ module.exports = [
 					D.apply(this, arguments);
 				}
 
-				if ( D ) C.__proto__ = D;
+				if ( D ) Object.setPrototypeOf(C, D);
 				C.prototype = Object.create( D && D.prototype );
 				C.prototype.constructor = C;
 
@@ -808,7 +808,7 @@ module.exports = [
 					F.apply(this, arguments);
 				}
 
-				if ( F ) E.__proto__ = F;
+				if ( F ) Object.setPrototypeOf(E, F);
 				E.prototype = Object.create( F && F.prototype );
 				E.prototype.constructor = E;
 
@@ -924,7 +924,7 @@ module.exports = [
 					render();
 				}
 
-				if ( Bar ) Foo.__proto__ = Bar;
+				if ( Bar ) Object.setPrototypeOf(Foo, Bar);
 				Foo.prototype = Object.create( Bar && Bar.prototype );
 				Foo.prototype.constructor = Foo;
 
@@ -955,7 +955,7 @@ module.exports = [
 					SuperClass.apply( this, args );
 				}
 
-				if ( SuperClass ) SubClass.__proto__ = SuperClass;
+				if ( SuperClass ) Object.setPrototypeOf(SubClass, SuperClass);
 				SubClass.prototype = Object.create( SuperClass && SuperClass.prototype );
 				SubClass.prototype.constructor = SubClass;
 
@@ -982,7 +982,7 @@ module.exports = [
 					SuperClass.apply( this, [ 1 ].concat( args, [2] ) );
 				}
 
-				if ( SuperClass ) SubClass.__proto__ = SuperClass;
+				if ( SuperClass ) Object.setPrototypeOf(SubClass, SuperClass);
 				SubClass.prototype = Object.create( SuperClass && SuperClass.prototype );
 				SubClass.prototype.constructor = SubClass;
 
@@ -1111,7 +1111,7 @@ module.exports = [
 					});
 				}
 
-				if ( B ) A.__proto__ = B;
+				if ( B ) Object.setPrototypeOf(A, B);
 				A.prototype = Object.create( B && B.prototype );
 				A.prototype.constructor = A;
 
@@ -1238,7 +1238,7 @@ module.exports = [
 			A = /*@__PURE__*/(function (A$1) {
 				function A () {
 					A$1.apply(this, arguments);
-				}if ( A$1 ) A.__proto__ = A$1;
+				}if ( A$1 ) Object.setPrototypeOf(A, A$1);
 				A.prototype = Object.create( A$1 && A$1.prototype );
 				A.prototype.constructor = A;
 
@@ -1260,7 +1260,7 @@ module.exports = [
 			var f = function (b) { return /*@__PURE__*/(function (b) {
 					function a () {
 						b.apply(this, arguments);
-					}if ( b ) a.__proto__ = b;
+					}if ( b ) Object.setPrototypeOf(a, b);
 					a.prototype = Object.create( b && b.prototype );
 					a.prototype.constructor = a;