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# -*- tcl -*-
# # ## ### ##### ######## #############
# (C) 2009 Andreas Kupries
# @@ Meta Begin
# Package tcl::transform::core 1.1
# Meta as::author {Andreas Kupries}
# Meta as::copyright 2009
# Meta as::license BSD
# Meta description Support package handling a core
# Meta description aspect of reflected transform channels
# Meta description (initialization, finalization).
# Meta description It is expected that this class
# Meta description is used as either one superclass of the
# Meta description class C for a specific channel, or is
# Meta description mixed into C.
# Meta platform tcl
# Meta require TclOO
# Meta require {Tcl 8.6}
# @@ Meta End
# # ## ### ##### ######## #############
package require Tcl 8.6 9
# # ## ### ##### ######## #############
oo::class create ::tcl::transform::core {
destructor {
if {$channel eq {}} return
close $channel
return
}
# # ## ### ##### ######## #############
method initialize {thechannel mode} {
set methods [info object methods [self] -all]
# Note: Checking of the mode against the supported methods is
# done by the caller.
set channel $thechannel
set supported {}
foreach m {
initialize finalize read write drain flush limit?
} {
if {$m in $methods} {
lappend supported $m
}
}
return $supported
}
method finalize {c} {
set channel {} ; # Prevent destroctor from calling close.
my destroy
return
}
# # ## ### ##### ######## #############
variable channel
# channel The channel the handler belongs to.
# # ## ### ##### ######## #############
}
# # ## ### #####
package provide tcl::transform::core 1.1
return
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