1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Environment-find-06.js b/js/src/jit-test/tests/debug/Environment-find-06.js
new file mode 100644
index 0000000000..b34321647e
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Environment-find-06.js
@@ -0,0 +1,47 @@
+// Environment.prototype.find finds bindings that are function arguments, 'let'
+// bindings, or FunctionExpression names.
+
+var g = newGlobal({newCompartment: true});
+g.eval("function h() { debugger; }");
+
+var dbg = new Debugger(g);
+
+function test1(code) {
+    var hits = 0;
+    dbg.onDebuggerStatement = function (frame) {
+        var env = frame.older.environment.find('X');
+        assertEq(env.names().indexOf('X') !== -1, true);
+        assertEq(env.type, 'declarative');
+        assertEq(env.parent !== null, true);
+        hits++;
+    };
+    g.eval(code);
+    assertEq(hits, 1);
+}
+
+var manyNames = '';
+for (var i = 0; i < 2048; i++)
+    manyNames += 'x' + i + ', ';
+manyNames += 'X';
+
+function test2(code) {
+    print(code + " : one");
+    test1(code.replace('@@', 'X'));
+    print(code + " : many");
+    test1(code.replace('@@', manyNames));
+}
+
+test2('function f(@@) { h(); }  f(1);');
+test2('function f(@@) { h(); }  f();');
+test2('function f(@@) { return function g() { h(X); }; }  f(1)();');
+test2('function f(@@) { return function g() { h(X); }; }  f()();');
+
+test2('                    { let @@ = 0; h(); }');
+test2('function f(a, b, c) { let @@ = 0; h(); }  f(1, 2, 3);');
+test2('             { let @@ = 0; { let y = 0; h(); } }');
+test2('function f() { let @@ = 0; { let y = 0; h(); } }  f();');
+test2('             { for (let @@ = 0; X < 1; X++) h(); }');
+test2('function f() { for (let @@ = 0; X < 1; X++) h(); }  f();');
+
+test1('(function X() { h(); })();');
+test1('(function X(a, b, c) { h(); })(1, 2, 3);');