Add m-esr52 at 52.6.0

1 files changed, 34 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/Class/newTargetEval.js b/js/src/tests/ecma_6/Class/newTargetEval.js
new file mode 100644
index 000000000..e3940bbf9
--- /dev/null
+++ b/js/src/tests/ecma_6/Class/newTargetEval.js
@@ -0,0 +1,34 @@
+// Eval of new.target is invalid outside functions.
+try {
+    eval('new.target');
+    assertEq(false, true);
+} catch (e if e instanceof SyntaxError) { }
+
+// new.target is invalid inside eval inside top-level arrow functions
+assertThrowsInstanceOf(() => eval('new.target'), SyntaxError);
+
+// new.target is invalid inside indirect eval.
+let ieval = eval;
+try {
+    (function () ieval('new.target'))();
+    assertEq(false, true);
+} catch (e if e instanceof SyntaxError) { }
+
+function assertNewTarget(expected) {
+    assertEq(eval('new.target'), expected);
+    assertEq((()=>eval('new.target'))(), expected);
+
+    // Also test nestings "by induction"
+    assertEq(eval('eval("new.target")'), expected);
+    assertEq(eval("eval('eval(`new.target`)')"), expected);
+}
+
+const ITERATIONS = 550;
+for (let i = 0; i < ITERATIONS; i++)
+    assertNewTarget(undefined);
+
+for (let i = 0; i < ITERATIONS; i++)
+    new assertNewTarget(assertNewTarget);
+
+if (typeof reportCompare === "function")
+    reportCompare(0,0,"OK");