Avoid GC when printing shared function info.

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index 9229a97125e681b69a502a967a5e52c5f9d429af..2263de5e26ad925b9729489879ac86d8397058fd 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -1966,3 +1966,23 @@ TEST(Regress2237) {
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
   CHECK(SlicedString::cast(*slice)->parent()->IsSeqAsciiString());
 }
+
+
+#ifdef OBJECT_PRINT
+TEST(PrintSharedFunctionInfo) {
+  InitializeVM();
+  v8::HandleScope scope;
+  const char* source = "f = function() { return 987654321; }\n"
+                       "g = function() { return 123456789; }\n";
+  CompileRun(source);
+  Handle<String> g_symbol = FACTORY->LookupAsciiSymbol("g");
+  JSFunction* g_func;
+  MaybeObject* maybe_obj =
+      Isolate::Current()->context()->global()->GetProperty(*g_symbol);
+  CHECK(!maybe_obj->IsFailure());
+  CHECK(maybe_obj->To<JSFunction>(&g_func));

[Michael Starzinger, 2012/07/27 09:50:27]

Consider using the following to get to the "g" function ...

Handle<JSFunction> g =
    v8::Utils::OpenHandle(
        *v8::Handle<v8::Function>::Cast(
            v8::Context::GetCurrent()->Global()->Get(v8_str("g"))));

+
+  AssertNoAllocation no_alloc;
+  g_func->shared()->PrintLn();
+}
+#endif  // OBJECT_PRINT