[strong] checking of this & super in constructors

test/mjsunit/strong/classes.js

Index: test/mjsunit/strong/classes.js
diff --git a/test/mjsunit/strong/classes.js b/test/mjsunit/strong/classes.js
index 50fe5a18ee9ea79fee331afd02d62539733b456f..c329043ae16e3166b2e1f383c3f68202d061a8f8 100644
--- a/test/mjsunit/strong/classes.js
+++ b/test/mjsunit/strong/classes.js
@@ -28,16 +28,32 @@ function constructor(body) {
       "(class extends Object { constructor() { " + body + " } })";
 }
 
+(function NoSuperExceptCall() {
+  assertSyntaxError(constructor("super.a;"));
+  assertSyntaxError(constructor("super['a'];"));
+  assertSyntaxError(constructor("super.f();"));
+  assertSyntaxError(constructor("super.a;"));
+  assertSyntaxError(constructor("{ super.a }"));
+  assertSyntaxError(constructor("if (0) super.a;"));
+  // TODO(rossberg): arrow functions do not handle 'super' yet.
+  // assertSyntaxError(constructor("() => super.a;"));
+  // assertSyntaxError(constructor("() => () => super.a;"));
+  // assertSyntaxError(constructor("() => { () => if (0) { super.a; } }"));
+})();
+
 (function NoMissingSuper() {
   assertReferenceError(constructor(""));
   assertReferenceError(constructor("1"));
 })();
 
 (function NoNestedSuper() {
+  assertSyntaxError(constructor("super(), 0;"));
   assertSyntaxError(constructor("(super());"));
+  assertSyntaxError(constructor("super().a;"));
   assertSyntaxError(constructor("(() => super())();"));
   assertSyntaxError(constructor("{ super(); }"));
   assertSyntaxError(constructor("if (1) super();"));
+  assertSyntaxError(constructor("label: super();"));
 })();
 
 (function NoDuplicateSuper() {
@@ -48,9 +64,19 @@ function constructor(body) {
   assertSyntaxError(constructor("super(); (() => super())();"));
 })();
 
+(function NoSuperAfterThis() {
+  assertSyntaxError(constructor("this.a = 0, super();"));
+  assertSyntaxError(constructor("this.a = 0; super();"));
+  assertSyntaxError(constructor("this.a = 0; super(); this.b = 0;"));
+  assertSyntaxError(constructor("this.a = 0; (super());"));
+  assertSyntaxError(constructor("super(this.a = 0);"));
+})();
+
 (function NoReturnValue() {
   assertSyntaxError(constructor("return {};"));
   assertSyntaxError(constructor("return undefined;"));
+  assertSyntaxError(constructor("return this;"));
+  assertSyntaxError(constructor("return this.a = 0;"));
   assertSyntaxError(constructor("{ return {}; }"));
   assertSyntaxError(constructor("if (1) return {};"));
 })();
@@ -60,3 +86,34 @@ function constructor(body) {
   assertSyntaxError(constructor("if (0) return; super();"));
   assertSyntaxError(constructor("{ return; } super();"));
 })();
+
+(function NoReturnBeforeThis() {
+  assertSyntaxError(constructor("return; this.a = 0;"));
+  assertSyntaxError(constructor("if (0) return; this.a = 0;"));
+  assertSyntaxError(constructor("{ return; } this.a = 0;"));
+})();
+
+(function NoThisExceptInitialization() {
+  assertSyntaxError(constructor("this;"));
+  assertSyntaxError(constructor("this.a;"));
+  assertSyntaxError(constructor("this['a'];"));
+  assertSyntaxError(constructor("this();"));
+  assertSyntaxError(constructor("this.a();"));
+  assertSyntaxError(constructor("this.a.b = 0;"));
+  assertSyntaxError(constructor("{ this }"));
+  assertSyntaxError(constructor("if (0) this;"));
+  // TODO(rossberg): this does not handle arrow functions yet.
+  // assertSyntaxError(constructor("() => this;"));
+  // assertSyntaxError(constructor("() => () => this;"));
+  // assertSyntaxError(constructor("() => { () => if (0) { this; } }"));
+})();
+
+(function NoNestedThis() {
+  assertSyntaxError(constructor("(this.a = 0);"));
+  assertSyntaxError(constructor("{ this.a = 0; }"));
+  assertSyntaxError(constructor("if (0) this.a = 0;"));
+  // TODO(rossberg): this does not handle arrow functions yet.
+  // assertSyntaxError(constructor("() => this.a = 0;"));
+  // assertSyntaxError(constructor("() => { this.a = 0; }"));
+  assertSyntaxError(constructor("label: this.a = 0;"));
+})();