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-rw-r--r--js/src/jit-test/lib/evalInFrame.js32
1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/jit-test/lib/evalInFrame.js b/js/src/jit-test/lib/evalInFrame.js
new file mode 100644
index 0000000000..d429b3fb6a
--- /dev/null
+++ b/js/src/jit-test/lib/evalInFrame.js
@@ -0,0 +1,32 @@
+var evalInFrame = (function (global) {
+ var dbgGlobal = newGlobal({newCompartment: true});
+ var dbg = new dbgGlobal.Debugger();
+
+ return function evalInFrame(upCount, code) {
+ dbg.addDebuggee(global);
+
+ // Skip ourself.
+ var frame = dbg.getNewestFrame().older;
+ for (var i = 0; i < upCount; i++) {
+ if (!frame.older)
+ break;
+ frame = frame.older;
+ }
+
+ var completion = frame.eval(code);
+ if (completion.return) {
+ var v = completion.return;
+ if (typeof v === "object")
+ v = v.unsafeDereference();
+ return v;
+ }
+ if (completion.throw) {
+ var v = completion.throw;
+ if (typeof v === "object")
+ v = v.unsafeDereference();
+ throw v;
+ }
+ if (completion === null)
+ terminate();
+ };
+})(this);