# $Id: poe.tcl,v 1.1.2.2.2.27 2007-10-15 15:58:13 chunlee Exp $ #----------------------------------------------------------------# # POETCL # # Copyright (c) 2005,2006,2007,2008 by Mathieu Bouchard # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # See file ../COPYING.desire-client.txt for further informations on licensing terms. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # # Note that this is not under the same license as the rest of PureData. # Even the DesireData server-side modifications stay on the same license # as the rest of PureData. # #-----------------------------------------------------------------------------------# # (please distinguish between what this is and what dataflow is) # note, the toplevel class is called "thing". package provide poe 0.1 set nextid 0 set _(Class:_class) Class set _(Class:_super) {Thing} set have_expand [expr ![catch {set a {foo bar}; list {expand}$a}]] proc correct_splat {code} { if {!$::have_expand} {return $code} regsub {{*}} $code {{expand}} } proc proc* {name args body} { set argl {} foreach arg $args {set arg [lindex $arg 0]; lappend argl "$arg=\$$arg"} if {[regexp {_unknown$} $name]} { proc $name $args "upvar 1 selector ___; puts \"\[VTgreen\]CALL TO PROC $name selector=\$___ [join $argl " "]\[VTgrey\]\"; $body" } else { if {![regexp "return" $body]} { set body "time {$body}" proc $name $args "puts \"\[VTgreen\]CALL TO PROC $name [join $argl " "], \[VTred\]\[lrange \[split \[$body\] \] 0 1\] \[VTgrey\]\"" } { proc $name $args "puts \"\[VTgreen\]CALL TO PROC $name [join $argl " "]\[VTgrey\]\"; $body" } } } #proc Class_def {self selector args body} { # global _; if {![info exists _($self:_class)]} {error "unknown class '$self'"} # proc ${self}_$selector "self $args" "global _; [regsub -all @(\[\\w\\?\]+) $body _(\$self:\\1)]" #} #proc def {class selector args body} {$class def $selector $args $body} proc expand_macros {body} { return [regsub -all @(\\\$?\[\\w\\?\]+) $body _(\$self:\\1)] } proc def {self selector argnames body} { global _ __trace __args if {![info exists _($self:_class)]} {error "unknown class '$self'"} set name ${self}_$selector #if {$name == "Canvas_motion_wrap"} {set body "puts \[time {$body}\]"} set argnames [concat [list self] $argnames] if {([info exists __trace($self:$selector)] || [info exists __trace(*:$selector)] || [info exists __trace($self:*)] || [info exists __trace(*:*)]) && ![info exists __trace($self:!$selector)] && ![info exists __trace(*:!$selector)] } { proc* $name $argnames "global _; [expand_macros $body]" } { proc $name $argnames "global _; [expand_macros $body]" } set __args($name) $argnames #trace add execution ${self}_$selector enter dedebug } proc class_new {self {super {Thing}}} { global _ set _($self:_class) Class set _($self:_super) $super set _($self:subclasses) {} foreach sup $super {lappend _($sup:subclasses) $self} proc ${self}_new {args} "global _ set self \[format o%07x \$::nextid\] incr ::nextid set _(\$self:_class) $self setup_dispatcher \$self eval [concat \[list \$self init\] \$args] return \$self " proc ${self}_new_as {self args} "global _ if {\[info exists _(\$self:_class)\]} {error \"object '\\$self' already exists\" } set _(\$self:_class) $self setup_dispatcher \$self eval [concat \[list \$self init\] \$args] return \$self " setup_dispatcher $self } # TODO: remove duplicates in lookup proc lookup_method {class selector methodsv ancestorsv} { global _ upvar $methodsv methods upvar $ancestorsv ancestors set name ${class}_$selector if {[llength [info procs $name]]} {lappend methods $name} lappend ancestors $class foreach super $_($class:_super) {lookup_method $super $selector methods ancestors} } proc cache_method {class selector} { global _ __ set methods {}; set ancestors {} lookup_method $class $selector methods ancestors if {![llength $methods]} {set methods [cache_method $class unknown]} set __($class:$selector) $methods return $methods } if {$have_expand} { set dispatch { set i 0; set class $::_($self:_class) if {[catch {set methods $::__($class:$selector)}]} {set methods [cache_method $class $selector]} [lindex $methods 0] $self {expand}$args } } else { set dispatch { set i 0; set class $::_($self:_class) if {[catch {set methods $::__($class:$selector)}]} {set methods [cache_method $class $selector]} [lindex $methods 0] $self {*}$args } } proc setup_dispatcher {self} { if {[llength [info commands $self]]} {rename $self old_$self} proc $self {selector args} [regsub -all {\$self} $::dispatch $self] } set super { upvar 1 self self upvar 2 methods methods i oi set i [expr {1+$oi}] if {[llength $methods] < $i} {error "no more supermethods"} } if {$have_expand} { append super {[lindex $methods $i] $self {expand}$args} } else { append super {eval [concat [list [lindex $methods $i] $self] $args]} } proc super {args} $super class_new Thing {} #set _(Thing:_super) {} def Thing init {} {} def Thing == {other} {return [expr ![string compare $self $other]]} # virtual destructor def Thing delete {} { foreach elem [array names _ $self:*] {array unset _ $elem} rename $self "" } def Thing vars {} { set n [string length $self:] set ks [list] foreach k [array names _] { if {0==[string compare -length $n $self: $k]} {lappend ks [string range $k $n end]} } return $ks } def Thing inspect {} { set t [list "#<$self: "] foreach k [lsort [$self vars]] {lappend t "$k=[list $@$k] "} lappend t ">" return [join $t ""] } def Thing class {} {return $@_class} def Thing unknown {args} { upvar 1 selector selector class class error "no such method '$selector' for object '$self'\nwith ancestors {[Class_ancestors $class]}" } class_new Class # those return only the direct neighbours in the hierarchy def Class superclasses {} {return $@_super} def Class subclasses {} {return $@subclasses} # those look recursively. def Class ancestors {} { #if {[info exists @ancestors]} {} set r [list $self] foreach super $@_super {eval [concat [list lappend r] [$super ancestors]]} return $r } def Class <= {class} {return [expr [lsearch [$self ancestors] $class]>=0]} # note: [luniq] is actually defined in desire.tk def Class methods {} { set methods {} set anc [$self ancestors] foreach class $anc { foreach name [info procs ${class}_*] { lappend methods [join [lrange [split $name _] 1 end] _] } } return [luniq [lsort $methods]] } # those are static methods, and poe.tcl doesn't distinguish them yet. def Class new { args} {eval [concat [list ${self}_new ] $args]} def Class new_as {id args} {eval [concat [list ${self}_new_as $id] $args]} #-----------------------------------------------------------------------------------# # this makes me think of Maximus-CBCS... proc VTgrey {} {return "\x1b\[0m"} proc VTred {} {return "\x1b\[0;1;31m"} proc VTgreen {} {return "\x1b\[0;1;32m"} proc VTyellow {} {return "\x1b\[0;1;33m"} proc VTblue {} {return "\x1b\[0;1;34m"} proc VTmagenta {} {return "\x1b\[0;1;35m"} proc VTcyan {} {return "\x1b\[0;1;36m"} proc VTwhite {} {return "\x1b\[0;1;37m"} proc error_text {} { set e $::errorInfo regsub -all " invoked from within\n" $e "" e regsub -all "\n \\(" $e " (" e regsub -all {\n[^\n]*procedure \"(::unknown|super)\"[^\n]*\n} $e "\n" e regsub -all {\n\"\[lindex \$methods 0\][^\n]*\n} $e "\n" e regsub -all {\s*while executing\s*\n} $e "\n" e #regsub {\n$} $e "" e return $e } set suicidal 0 proc error_dump {} { puts "[VTred]Exception:[VTgrey] [error_text]" if {$::suicidal} {exit 1} } proc tracedef {class method {when enter}} { global __trace set __trace($class:$method) $when } proc yell {var key args} { global $key puts "[VTyellow]HEY! at [info level -1] set $key [list $::_($key)][VTgrey]" } proc object_table {} { set n 0 puts "poe.tcl object_table: {" foreach o [lsort [array names ::_ *:_class]] { set oo [lindex [split $o :] 0] set class $::_($o) incr by_class($class) puts " $oo is a $class" incr n } puts "} ($n objects)" set n 0 puts "poe.tcl class_stats: {" foreach o [array names by_class] { puts " class $o has $by_class($o) objects" incr n } puts "} ($n classes)" } proc object_exists {self} {info exists ::_($self:_class)}