1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/tests/js1_8_5/regress/regress-610026.js b/js/src/tests/js1_8_5/regress/regress-610026.js
new file mode 100644
index 0000000..3264bf4
--- /dev/null
+++ b/js/src/tests/js1_8_5/regress/regress-610026.js
@@ -0,0 +1,65 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var expect = "pass";
+var actual;
+
+/*
+ * We hardcode here that GenerateBlockId limits a program to 2^20 blocks. Start
+ * with 2^19 blocks, then test 2^20 - 1 blocks, finally test the limit.
+ */
+var s = "{}";
+for (var i = 0; i < 19; i++)
+    s += s;
+
+try {
+    eval(s);
+    actual = "pass";
+} catch (e) {
+    actual = "fail: " + e;
+}
+
+assertEq(actual, expect);
+
+s += s.slice(0, -2);
+
+try {
+    eval(s);
+    actual = "pass";
+} catch (e) {
+    actual = "fail: " + e;
+}
+
+assertEq(actual, expect);
+
+s += "{}";
+
+try {
+    eval(s);
+    actual = "fail: expected InternalError: program too large";
+} catch (e) {
+    actual = (e.message == "program too large") ? "pass" : "fail: " + e;
+}
+
+assertEq(actual, expect);
+
+/* Make 64K blocks in a row, each with two vars, the second one named x. */
+s = "{let y, x;}";
+for (i = 0; i < 16; i++)
+    s += s;
+
+/* Now append code to alias block 0 and botch a JS_NOT_REACHED or get the wrong x. */
+s += "var g; { let x = 42; g = function() { return x; }; x = x; }";
+
+try {
+    eval(s);
+    actual = g();
+} catch (e) {
+    actual = e;
+}
+assertEq(actual, 42);
+
+reportCompare(0, 0, "ok");