after-delete in drscheme:unit:program-editor-mixin
Called after a given range is deleted from the editor
(and after the display is refreshed; use
on-delete and
begin-edit-sequence to avoid extra refreshes when
after-delete modifies the editor).
See also
can-delete? and
on-edit-sequence.
No internals locks are set when this method is called.
( -> void
send a-drscheme:unit:program-editor-mixin after-delete start len)
start : number
len : number
Calls the super method.
Resets an error higlighting.