From 9557e1b56dba4d9db2f6ab1e8c31ae867c313ef0 Mon Sep 17 00:00:00 2001 From: John Clements Date: Thu, 15 Dec 2005 19:03:59 +0000 Subject: [PATCH] ... svn: r1620 --- notes/stepper/HISTORY | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/notes/stepper/HISTORY b/notes/stepper/HISTORY index 178d4faa35..f2e7822950 100644 --- a/notes/stepper/HISTORY +++ b/notes/stepper/HISTORY @@ -61,5 +61,14 @@ None. Changes for v300: -updated for compatibility. +Major changes. The stepper now handles mutation, though it doesn't yet handle 'begin', so +the advanced language is not defaultly steppable. Enable stepping for the advanced language +using the PLTSTEPPERUNSAFE environment variable. + +This change has also prompted an interface change; rather than splitting the stepper window +into three panes, there is just one pane, with a simple left-right split between before & after. +The reason for this is that in the presence of mutation, it's no longer the case that the +"finished" expressions never change, which means that they can't always be shared between the +left and right hand sides. +