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|
###
# The metaclass for all practcl objects
###
::clay::define ::practcl::metaclass {
method _MorphPatterns {} {
return {{@name@} {::practcl::@name@} {::practcl::*@name@} {::practcl::*@name@*}}
}
method define {submethod args} {
my variable define
switch $submethod {
dump {
return [array get define]
}
add {
set field [lindex $args 0]
if {![info exists define($field)]} {
set define($field) {}
}
foreach arg [lrange $args 1 end] {
if {$arg ni $define($field)} {
lappend define($field) $arg
}
}
return $define($field)
}
remove {
set field [lindex $args 0]
if {![info exists define($field)]} {
return
}
set rlist [lrange $args 1 end]
set olist $define($field)
set nlist {}
foreach arg $olist {
if {$arg in $rlist} continue
lappend nlist $arg
}
set define($field) $nlist
return $nlist
}
exists {
set field [lindex $args 0]
return [info exists define($field)]
}
getnull -
get -
cget {
set field [lindex $args 0]
if {[info exists define($field)]} {
return $define($field)
}
return [lindex $args 1]
}
set {
if {[llength $args]==1} {
set arglist [lindex $args 0]
} else {
set arglist $args
}
array set define $arglist
if {[dict exists $arglist class]} {
my select
}
}
default {
array $submethod define {*}$args
}
}
}
method graft args {
return [my clay delegate {*}$args]
}
method initialize {} {}
method link {command args} {
my variable links
switch $command {
object {
foreach obj $args {
foreach linktype [$obj linktype] {
my link add $linktype $obj
}
}
}
add {
###
# Add a link to an object that was externally created
###
if {[llength $args] ne 2} { error "Usage: link add LINKTYPE OBJECT"}
lassign $args linktype object
if {[info exists links($linktype)] && $object in $links($linktype)} {
return
}
lappend links($linktype) $object
}
remove {
set object [lindex $args 0]
if {[llength $args]==1} {
set ltype *
} else {
set ltype [lindex $args 1]
}
foreach {linktype elements} [array get links $ltype] {
if {$object in $elements} {
set nlist {}
foreach e $elements {
if { $object ne $e } { lappend nlist $e }
}
set links($linktype) $nlist
}
}
}
list {
if {[llength $args]==0} {
return [array get links]
}
if {[llength $args] != 1} { error "Usage: link list LINKTYPE"}
set linktype [lindex $args 0]
if {![info exists links($linktype)]} {
return {}
}
return $links($linktype)
}
dump {
return [array get links]
}
}
}
method morph classname {
my variable define
if {$classname ne {}} {
set map [list @name@ $classname]
foreach pattern [string map $map [my _MorphPatterns]] {
set pattern [string trim $pattern]
set matches [info commands $pattern]
if {![llength $matches]} continue
set class [lindex $matches 0]
break
}
set mixinslot {}
foreach {slot pattern} {
distribution ::practcl::distribution*
product ::practcl::product*
toolset ::practcl::toolset*
} {
if {[string match $pattern $class]} {
set mixinslot $slot
break
}
}
if {$mixinslot ne {}} {
my clay mixinmap $mixinslot $class
} elseif {[info command $class] ne {}} {
if {[info object class [self]] ne $class} {
::oo::objdefine [self] class $class
::practcl::debug [self] morph $class
my define set class $class
}
} else {
error "[self] Could not detect class for $classname"
}
}
if {[::info exists define(oodefine)]} {
::oo::objdefine [self] $define(oodefine)
#unset define(oodefine)
}
}
method script script {
eval $script
}
method select {} {
my variable define
if {[info exists define(class)]} {
my morph $define(class)
} else {
if {[::info exists define(oodefine)]} {
::oo::objdefine [self] $define(oodefine)
#unset define(oodefine)
}
}
}
method source filename {
source $filename
}
}
|
