bool
GlobalObject::addDebugger(JSContext *cx, Debugger *dbg)
{
DebuggerVector *debuggers = getOrCreateDebuggers(cx);
if (!debuggers)
return false;
#ifdef DEBUG
for (Debugger **p = debuggers->begin(); p != debuggers->end(); p++)
JS_ASSERT(*p != dbg);
#endif
if (debuggers->empty() && !compartment()->addDebuggee(cx, this))
return false;
if (!debuggers->append(dbg)) {
compartment()->removeDebuggee(cx, this);
return false;
}
return true;
}
static void
gjs_coverage_constructed(GObject *object)
{
G_OBJECT_CLASS(gjs_coverage_parent_class)->constructed(object);
GjsCoverage *coverage = GJS_COVERAGE(object);
GjsCoveragePrivate *priv = (GjsCoveragePrivate *) gjs_coverage_get_instance_private(coverage);
new (&priv->compartment) JS::Heap<JSObject *>();
if (!bootstrap_coverage(coverage)) {
JSContext *context = static_cast<JSContext *>(gjs_context_get_native_context(priv->context));
JSAutoCompartment compartment(context, gjs_get_import_global(context));
gjs_log_exception(context);
}
}
bool
GlobalObject::isRuntimeCodeGenEnabled(JSContext *cx)
{
HeapValue &v = getSlotRef(RUNTIME_CODEGEN_ENABLED);
if (v.isUndefined()) {
JSSecurityCallbacks *callbacks = JS_GetSecurityCallbacks(cx);
/*
* If there are callbacks, make sure that the CSP callback is installed
* and that it permits runtime code generation, then cache the result.
*/
v.set(compartment(),
BooleanValue((!callbacks || !callbacks->contentSecurityPolicyAllows) ||
callbacks->contentSecurityPolicyAllows(cx)));
}
return !v.isFalse();
}
/*
* See:
* https://bugzilla.mozilla.org/show_bug.cgi?id=166436
* https://bugzilla.mozilla.org/show_bug.cgi?id=215173
*
* Very surprisingly, jsapi.h lacks any way to "throw new Error()"
*
* So here is an awful hack inspired by
* http://egachine.berlios.de/embedding-sm-best-practice/embedding-sm-best-practice.html#error-handling
*/
static void
gjs_throw_valist(JSContext *context,
const char *error_class,
const char *format,
va_list args)
{
char *s;
JSBool result;
jsval v_constructor, v_message;
JSObject *err_obj;
s = g_strdup_vprintf(format, args);
JSAutoCompartment compartment(context, JS_GetGlobalObject(context));
JS_BeginRequest(context);
if (JS_IsExceptionPending(context)) {
/* Often it's unclear whether a given jsapi.h function
* will throw an exception, so we will throw ourselves
* "just in case"; in those cases, we don't want to
* overwrite an exception that already exists.
* (Do log in case our second exception adds more info,
* but don't log as topic ERROR because if the exception is
* caught we don't want an ERROR in the logs.)
*/
gjs_debug(GJS_DEBUG_CONTEXT,
"Ignoring second exception: '%s'",
s);
g_free(s);
JS_EndRequest(context);
return;
}
result = JS_FALSE;
if (!gjs_string_from_utf8(context, s, -1, &v_message)) {
JS_ReportError(context, "Failed to copy exception string");
goto out;
}
if (!JS_GetProperty(context, JS_GetGlobalObject(context),
error_class, &v_constructor) ||
!JSVAL_IS_OBJECT(v_constructor)) {
JS_ReportError(context, "??? Missing Error constructor in global object?");
goto out;
}
/* throw new Error(message) */
err_obj = JS_New(context, JSVAL_TO_OBJECT(v_constructor), 1, &v_message);
JS_SetPendingException(context, OBJECT_TO_JSVAL(err_obj));
result = JS_TRUE;
out:
if (!result) {
/* try just reporting it to error handler? should not
* happen though pretty much
*/
JS_ReportError(context,
"Failed to throw exception '%s'",
s);
}
g_free(s);
JS_EndRequest(context);
}
