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-rw-r--r--js/src/tests/non262/class/superCallThisInit.js48
1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/superCallThisInit.js b/js/src/tests/non262/class/superCallThisInit.js
new file mode 100644
index 0000000000..935f6b69ff
--- /dev/null
+++ b/js/src/tests/non262/class/superCallThisInit.js
@@ -0,0 +1,48 @@
+function base() { this.prop = 42; }
+
+class testInitialize extends base {
+ constructor() {
+ // A poor man's assertThrowsInstanceOf, as arrow functions are currently
+ // disabled in this context
+ try {
+ this;
+ throw new Error();
+ } catch (e) {
+ if (!(e instanceof ReferenceError))
+ throw e;
+ }
+ super();
+ assertEq(this.prop, 42);
+ }
+}
+assertEq(new testInitialize().prop, 42);
+
+// super() twice is a no-go.
+class willThrow extends base {
+ constructor() {
+ super();
+ super();
+ }
+}
+assertThrowsInstanceOf(()=>new willThrow(), ReferenceError);
+
+// This is determined at runtime, not the syntax level.
+class willStillThrow extends base {
+ constructor() {
+ for (let i = 0; i < 3; i++) {
+ super();
+ }
+ }
+}
+assertThrowsInstanceOf(()=>new willStillThrow(), ReferenceError);
+
+class canCatchThrow extends base {
+ constructor() {
+ super();
+ try { super(); } catch(e) { }
+ }
+}
+assertEq(new canCatchThrow().prop, 42);
+
+if (typeof reportCompare === 'function')
+ reportCompare(0,0,"OK");