Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/js/src/tests/non262/lexical-environment/block-scoped-functions-annex-b-eval.js b/js/src/tests/non262/lexical-environment/block-scoped-functions-annex-b-eval.js
new file mode 100644
index 0000000000..9f4e4d7fe8
--- /dev/null
+++ b/js/src/tests/non262/lexical-environment/block-scoped-functions-annex-b-eval.js
@@ -0,0 +1,51 @@
+var log = "";
+
+function f() {
+  log += g();
+  function g() { return "outer-g"; }
+
+  var o = { g: function () { return "with-g"; } };
+  with (o) {
+    // Annex B.3.3.3 says g should be set on the nearest VariableEnvironment,
+    // and so should not change o.g.
+    eval(`{
+      function g() { return "eval-g"; }
+    }`);
+  }
+
+  log += g();
+  log += o.g();
+}
+
+f();
+
+function h() {
+  eval(`
+    // Should return true, as var bindings introduced by eval are configurable.
+    log += (delete q);
+    {
+      function q() { log += "q"; }
+      // Should return false, as lexical bindings introduced by eval are not
+      // configurable.
+      log += (delete q);
+    }
+  `);
+  return q;
+}
+
+h()();
+
+function f2() {
+  // Should not throw, just simply not synthesize an Annex B var in the eval
+  // because there's an outer const.
+  eval("{ function a() {} }");
+  const a = 1;
+}
+
+function f3() {
+  // As above, but for let.
+  eval("{ function a() {} }");
+  let a;
+}
+
+reportCompare(log, "outer-geval-gwith-gtruefalseq");