static JSBool
gjs_log_error(JSContext *context,
uintN argc,
jsval *vp)
{
jsval *argv = JS_ARGV(context, vp);
char *s;
JSExceptionState *exc_state;
JSString *jstr;
jsval exc;
if (argc != 2) {
gjs_throw(context, "Must pass an exception and message string to logError()");
return JS_FALSE;
}
JS_BeginRequest(context);
exc = argv[0];
/* JS_ValueToString might throw, in which we will only
*log that the value could be converted to string */
exc_state = JS_SaveExceptionState(context);
jstr = JS_ValueToString(context, argv[1]);
if (jstr != NULL)
argv[1] = STRING_TO_JSVAL(jstr); // GC root
JS_RestoreExceptionState(context, exc_state);
if (jstr == NULL) {
gjs_debug(GJS_DEBUG_ERROR, "<cannot convert value to string>");
gjs_log_exception_props(context, exc);
JS_EndRequest(context);
return JS_TRUE;
}
if (!gjs_string_to_utf8(context, STRING_TO_JSVAL(jstr), &s)) {
JS_EndRequest(context);
return JS_FALSE;
}
gjs_debug(GJS_DEBUG_ERROR, "%s", s);
gjs_log_exception_props(context, exc);
g_free(s);
JS_EndRequest(context);
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
static JSBool
log_and_maybe_keep_exception(JSContext *context,
char **message_p,
gboolean keep)
{
jsval exc = JSVAL_VOID;
JSString *s;
char *message;
JSBool retval = JS_FALSE;
JS_BeginRequest(context);
if (message_p)
*message_p = NULL;
JS_AddRoot(context, &exc);
if (!JS_GetPendingException(context, &exc))
goto out;
JS_ClearPendingException(context);
s = JS_ValueToString(context, exc);
if (s == NULL) {
gjs_debug(GJS_DEBUG_ERROR,
"Failed to convert exception to string");
goto out; /* Exception should be thrown already */
}
if (!gjs_string_to_utf8(context, STRING_TO_JSVAL(s), &message)) {
gjs_debug(GJS_DEBUG_ERROR,
"Failed to convert exception string to UTF-8");
goto out; /* Error already set */
}
gjs_debug(GJS_DEBUG_ERROR,
"Exception was: %s",
message);
if (message_p) {
*message_p = message;
} else {
g_free(message);
}
gjs_log_exception_props(context, exc);
/* We clear above and then set it back so any exceptions
* from the logging process don't overwrite the original
*/
if (keep)
JS_SetPendingException(context, exc);
retval = JS_TRUE;
out:
JS_RemoveRoot(context, &exc);
JS_EndRequest(context);
return retval;
}