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Overview
| Comment: | There are subtle cases where an append-if-new operation is really useful for a slot. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | tip-558 |
| Files: | files | file ages | folders |
| SHA3-256: |
108feb835c9078e90cabc3b0ff78b79f |
| User & Date: | dkf 2020-02-15 10:28:01 |
Context
|
2020-02-22
| ||
| 12:31 | Less contorted code check-in: 78d6a94a9c user: dkf tags: tip-558 | |
|
2020-02-15
| ||
| 10:28 | There are subtle cases where an append-if-new operation is really useful for a slot. check-in: 108feb835c user: dkf tags: tip-558 | |
|
2020-02-12
| ||
| 13:24 | Merge 8.7 check-in: eea71a4ef7 user: jan.nijtmans tags: tip-558 | |
Changes
Changes to doc/define.n.
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of values (class names, variable names, etc.) that comprises the contents of the slot. The class defines five operations (as methods) that may be done on the slot: .TP \fIslot\fR \fB\-append\fR ?\fImember ...\fR? . This appends the given \fImember\fR elements to the slot definition. .TP \fIslot\fR \fB\-clear\fR . This sets the slot definition to the empty list. .TP \fIslot\fR \fB\-prepend\fR ?\fImember ...\fR? .VS TIP516 |
> > > > > > |
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 |
of values (class names, variable names, etc.) that comprises the contents of the slot. The class defines five operations (as methods) that may be done on the slot: .TP \fIslot\fR \fB\-append\fR ?\fImember ...\fR? . This appends the given \fImember\fR elements to the slot definition. .TP \fIslot\fR \fB\-appendifnew\fR ?\fImember ...\fR? .VS TIP558 This appends the given \fImember\fR elements to the slot definition if they do not already exist. .VE TIP558 .TP \fIslot\fR \fB\-clear\fR . This sets the slot definition to the empty list. .TP \fIslot\fR \fB\-prepend\fR ?\fImember ...\fR? .VS TIP516 |
Changes to generic/tclOOScript.h.
94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 ... 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 ... 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 ... 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 ... 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 |
"\t\t\treturn\n"
"\t\t}\n"
"\t\tforeach c [info class superclass $class] {\n"
"\t\t\tset d [DelegateName $c]\n"
"\t\t\tif {![info object isa class $d]} {\n"
"\t\t\t\tcontinue\n"
"\t\t\t}\n"
"\t\t\tdefine $delegate ::oo::define::superclass -append $d\n"
"\t\t}\n"
"\t\tobjdefine $class ::oo::objdefine::mixin -append $delegate\n"
"\t}\n"
"\tproc UpdateClassDelegatesAfterClone {originObject targetObject} {\n"
"\t\tset originDelegate [DelegateName $originObject]\n"
"\t\tset targetDelegate [DelegateName $targetObject]\n"
"\t\tif {\n"
"\t\t\t[info object isa class $originDelegate]\n"
"\t\t\t&& ![info object isa class $targetDelegate]\n"
................................................................................
"\t\t::namespace export initialise\n"
"\t\t::namespace eval tmp {::namespace import ::oo::define::initialise}\n"
"\t\t::namespace export -clear\n"
"\t\t::rename tmp::initialise initialize\n"
"\t\t::namespace delete tmp\n"
"\t}\n"
"\tdefine Slot {\n"
"\t\tmethod Get {} {\n"
"\t\t\treturn -code error -errorcode {TCLOO ABSTRACT_SLOT} \"unimplemented\"\n"
"\t\t}\n"
"\t\tmethod Set list {\n"
"\t\t\treturn -code error -errorcode {TCLOO ABSTRACT_SLOT} \"unimplemented\"\n"
"\t\t}\n"
"\t\tmethod Resolve list {\n"
"\t\t\treturn $list\n"
"\t\t}\n"
"\t\tmethod -set args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\ttailcall my Set $args\n"
"\t\t}\n"
"\t\tmethod -append args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\ttailcall my Set [list {*}$current {*}$args]\n"
"\t\t}\n"
"\t\tmethod -clear {} {tailcall my Set {}}\n"
"\t\tmethod -prepend args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\ttailcall my Set [list {*}$args {*}$current]\n"
"\t\t}\n"
"\t\tmethod -remove args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\ttailcall my Set [lmap val $current {\n"
"\t\t\t\tif {$val in $args} continue else {set val}\n"
"\t\t\t}]\n"
"\t\t}\n"
"\t\tforward --default-operation my -append\n"
"\t\tmethod unknown {args} {\n"
"\t\t\tset def --default-operation\n"
"\t\t\tif {[llength $args] == 0} {\n"
"\t\t\t\ttailcall my $def\n"
"\t\t\t} elseif {![string match -* [lindex $args 0]]} {\n"
"\t\t\t\ttailcall my $def {*}$args\n"
"\t\t\t}\n"
"\t\t\tnext {*}$args\n"
"\t\t}\n"
"\t\texport -set -append -clear -prepend -remove\n"
"\t\tunexport unknown destroy\n"
"\t}\n"
"\tobjdefine define::superclass forward --default-operation my -set\n"
"\tobjdefine define::mixin forward --default-operation my -set\n"
"\tobjdefine objdefine::mixin forward --default-operation my -set\n"
"\tdefine object method <cloned> {originObject} {\n"
"\t\tforeach p [info procs [info object namespace $originObject]::*] {\n"
"\t\t\tset args [info args $p]\n"
"\t\t\tset idx -1\n"
"\t\t\tforeach a $args {\n"
"\t\t\t\tif {[info default $p $a d]} {\n"
"\t\t\t\t\tlset args [incr idx] [list $a $d]\n"
"\t\t\t\t} else {\n"
................................................................................
"\t\t\t\t\tarray set vNew [array get vOrigin]\n"
"\t\t\t\t} else {\n"
"\t\t\t\t\tset vNew $vOrigin\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t}\n"
"\t}\n"
"\tdefine class method <cloned> {originObject} {\n"
"\t\tnext $originObject\n"
"\t\t::oo::UpdateClassDelegatesAfterClone $originObject [self]\n"
"\t}\n"
"\tclass create singleton {\n"
"\t\tsuperclass class\n"
"\t\tvariable object\n"
"\t\tunexport create createWithNamespace\n"
................................................................................
"\t\t\tif {![info exists object] || ![info object isa object $object]} {\n"
"\t\t\t\tset object [next {*}$args]\n"
"\t\t\t\t::oo::objdefine $object {\n"
"\t\t\t\t\tmethod destroy {} {\n"
"\t\t\t\t\t\t::return -code error -errorcode {TCLOO SINGLETON} \\\n"
"\t\t\t\t\t\t\t\"may not destroy a singleton object\"\n"
"\t\t\t\t\t}\n"
"\t\t\t\t\tmethod <cloned> {originObject} {\n"
"\t\t\t\t\t\t::return -code error -errorcode {TCLOO SINGLETON} \\\n"
"\t\t\t\t\t\t\t\"may not clone a singleton object\"\n"
"\t\t\t\t\t}\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t\treturn $object\n"
"\t\t}\n"
................................................................................
"\t\t\t\t\t\t\"property setter for $prop did a continue\"\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t\treturn\n"
"\t\t}\n"
"\t\t::oo::class create configurable {\n"
"\t\t\tprivate variable my\n"
"\t\t\tmethod configure args {\n"
"\t\t\t\t::if {![::info exists my]} {\n"
"\t\t\t\t\t::set my [::namespace which my]\n"
"\t\t\t\t}\n"
"\t\t\t\t::if {[::llength $args] == 0} {\n"
"\t\t\t\t\t::oo::configuresupport::ReadAll [self] $my\n"
"\t\t\t\t} elseif {[::llength $args] == 1} {\n"
"\t\t\t\t\t::oo::configuresupport::ReadOne [self] $my \\\n"
|
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"\t\t\treturn\n"
"\t\t}\n"
"\t\tforeach c [info class superclass $class] {\n"
"\t\t\tset d [DelegateName $c]\n"
"\t\t\tif {![info object isa class $d]} {\n"
"\t\t\t\tcontinue\n"
"\t\t\t}\n"
"\t\t\tdefine $delegate ::oo::define::superclass -appendifnew $d\n"
"\t\t}\n"
"\t\tobjdefine $class ::oo::objdefine::mixin -appendifnew $delegate\n"
"\t}\n"
"\tproc UpdateClassDelegatesAfterClone {originObject targetObject} {\n"
"\t\tset originDelegate [DelegateName $originObject]\n"
"\t\tset targetDelegate [DelegateName $targetObject]\n"
"\t\tif {\n"
"\t\t\t[info object isa class $originDelegate]\n"
"\t\t\t&& ![info object isa class $targetDelegate]\n"
................................................................................
"\t\t::namespace export initialise\n"
"\t\t::namespace eval tmp {::namespace import ::oo::define::initialise}\n"
"\t\t::namespace export -clear\n"
"\t\t::rename tmp::initialise initialize\n"
"\t\t::namespace delete tmp\n"
"\t}\n"
"\tdefine Slot {\n"
"\t\tmethod Get -unexport {} {\n"
"\t\t\treturn -code error -errorcode {TCLOO ABSTRACT_SLOT} \"unimplemented\"\n"
"\t\t}\n"
"\t\tmethod Set -unexport list {\n"
"\t\t\treturn -code error -errorcode {TCLOO ABSTRACT_SLOT} \"unimplemented\"\n"
"\t\t}\n"
"\t\tmethod Resolve -unexport list {\n"
"\t\t\treturn $list\n"
"\t\t}\n"
"\t\tmethod -set -export args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\ttailcall my Set $args\n"
"\t\t}\n"
"\t\tmethod -append -export args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\ttailcall my Set [list {*}$current {*}$args]\n"
"\t\t}\n"
"\t\tmethod -appendifnew -export args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\tset args [lmap a $args {\n"
"\t\t\t\tset a [uplevel 1 [list $my Resolve $a]]\n"
"\t\t\t\tif {$a in $current} continue\n"
"\t\t\t\tset a\n"
"\t\t\t}]\n"
"\t\t\ttailcall my Set [list {*}$current {*}$args]\n"
"\t\t}\n"
"\t\tmethod -clear -export {} {tailcall my Set {}}\n"
"\t\tmethod -prepend -export args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\ttailcall my Set [list {*}$args {*}$current]\n"
"\t\t}\n"
"\t\tmethod -remove -export args {\n"
"\t\t\tset my [namespace which my]\n"
"\t\t\tset args [lmap a $args {uplevel 1 [list $my Resolve $a]}]\n"
"\t\t\tset current [uplevel 1 [list $my Get]]\n"
"\t\t\ttailcall my Set [lmap val $current {\n"
"\t\t\t\tif {$val in $args} continue else {set val}\n"
"\t\t\t}]\n"
"\t\t}\n"
"\t\tforward --default-operation my -append\n"
"\t\tmethod unknown -unexport {args} {\n"
"\t\t\tset def --default-operation\n"
"\t\t\tif {[llength $args] == 0} {\n"
"\t\t\t\ttailcall my $def\n"
"\t\t\t} elseif {![string match -* [lindex $args 0]]} {\n"
"\t\t\t\ttailcall my $def {*}$args\n"
"\t\t\t}\n"
"\t\t\tnext {*}$args\n"
"\t\t}\n"
"\t\tunexport destroy\n"
"\t}\n"
"\tobjdefine define::superclass forward --default-operation my -set\n"
"\tobjdefine define::mixin forward --default-operation my -set\n"
"\tobjdefine objdefine::mixin forward --default-operation my -set\n"
"\tdefine object method <cloned> -unexport {originObject} {\n"
"\t\tforeach p [info procs [info object namespace $originObject]::*] {\n"
"\t\t\tset args [info args $p]\n"
"\t\t\tset idx -1\n"
"\t\t\tforeach a $args {\n"
"\t\t\t\tif {[info default $p $a d]} {\n"
"\t\t\t\t\tlset args [incr idx] [list $a $d]\n"
"\t\t\t\t} else {\n"
................................................................................
"\t\t\t\t\tarray set vNew [array get vOrigin]\n"
"\t\t\t\t} else {\n"
"\t\t\t\t\tset vNew $vOrigin\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t}\n"
"\t}\n"
"\tdefine class method <cloned> -unexport {originObject} {\n"
"\t\tnext $originObject\n"
"\t\t::oo::UpdateClassDelegatesAfterClone $originObject [self]\n"
"\t}\n"
"\tclass create singleton {\n"
"\t\tsuperclass class\n"
"\t\tvariable object\n"
"\t\tunexport create createWithNamespace\n"
................................................................................
"\t\t\tif {![info exists object] || ![info object isa object $object]} {\n"
"\t\t\t\tset object [next {*}$args]\n"
"\t\t\t\t::oo::objdefine $object {\n"
"\t\t\t\t\tmethod destroy {} {\n"
"\t\t\t\t\t\t::return -code error -errorcode {TCLOO SINGLETON} \\\n"
"\t\t\t\t\t\t\t\"may not destroy a singleton object\"\n"
"\t\t\t\t\t}\n"
"\t\t\t\t\tmethod <cloned> -unexport {originObject} {\n"
"\t\t\t\t\t\t::return -code error -errorcode {TCLOO SINGLETON} \\\n"
"\t\t\t\t\t\t\t\"may not clone a singleton object\"\n"
"\t\t\t\t\t}\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t\treturn $object\n"
"\t\t}\n"
................................................................................
"\t\t\t\t\t\t\"property setter for $prop did a continue\"\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t\treturn\n"
"\t\t}\n"
"\t\t::oo::class create configurable {\n"
"\t\t\tprivate variable my\n"
"\t\t\tmethod configure -export args {\n"
"\t\t\t\t::if {![::info exists my]} {\n"
"\t\t\t\t\t::set my [::namespace which my]\n"
"\t\t\t\t}\n"
"\t\t\t\t::if {[::llength $args] == 0} {\n"
"\t\t\t\t\t::oo::configuresupport::ReadAll [self] $my\n"
"\t\t\t\t} elseif {[::llength $args] == 1} {\n"
"\t\t\t\t\t::oo::configuresupport::ReadOne [self] $my \\\n"
|
Changes to tests/oo.test.
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set s [SampleSlot new]
}] -body {
# Method names beginning with "-" are special to slots
$s -grill q
} -returnCodes error -cleanup [SampleSlotCleanup {
rename $s {}
}] -result \
{unknown method "-grill": must be -append, -clear, -prepend, -remove, -set, contents or ops}
test oo-34.1 {TIP 380: slots - presence} -setup {
set obj [oo::object new]
set result {}
} -body {
oo::define oo::object {
::lappend ::result [::info object class filter]
................................................................................
} {::oo::configuresupport::objreadableproperties ::oo::configuresupport::objwritableproperties ::oo::configuresupport::readableproperties ::oo::configuresupport::writableproperties ::oo::define::filter ::oo::define::mixin ::oo::define::superclass ::oo::define::variable ::oo::objdefine::filter ::oo::objdefine::mixin ::oo::objdefine::variable}
proc getMethods obj {
list [lsort [info object methods $obj -all]] \
[lsort [info object methods $obj -private]]
}
test oo-34.3 {TIP 380: slots - presence} {
getMethods oo::define::filter
} {{-append -clear -prepend -remove -set} {Get Set}}
test oo-34.4 {TIP 380: slots - presence} {
getMethods oo::define::mixin
} {{-append -clear -prepend -remove -set} {--default-operation Get Resolve Set}}
test oo-34.5 {TIP 380: slots - presence} {
getMethods oo::define::superclass
} {{-append -clear -prepend -remove -set} {--default-operation Get Resolve Set}}
test oo-34.6 {TIP 380: slots - presence} {
getMethods oo::define::variable
} {{-append -clear -prepend -remove -set} {Get Set}}
test oo-34.7 {TIP 380: slots - presence} {
getMethods oo::objdefine::filter
} {{-append -clear -prepend -remove -set} {Get Set}}
test oo-34.8 {TIP 380: slots - presence} {
getMethods oo::objdefine::mixin
} {{-append -clear -prepend -remove -set} {--default-operation Get Resolve Set}}
test oo-34.9 {TIP 380: slots - presence} {
getMethods oo::objdefine::variable
} {{-append -clear -prepend -remove -set} {Get Set}}
test oo-34.10 {TIP 516: slots - resolution} -setup {
oo::class create parent
set result {}
oo::class create 516a { superclass parent }
oo::class create 516b { superclass parent }
oo::class create 516c { superclass parent }
namespace eval 516test {
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|
set s [SampleSlot new]
}] -body {
# Method names beginning with "-" are special to slots
$s -grill q
} -returnCodes error -cleanup [SampleSlotCleanup {
rename $s {}
}] -result \
{unknown method "-grill": must be -append, -appendifnew, -clear, -prepend, -remove, -set, contents or ops}
test oo-34.1 {TIP 380: slots - presence} -setup {
set obj [oo::object new]
set result {}
} -body {
oo::define oo::object {
::lappend ::result [::info object class filter]
................................................................................
} {::oo::configuresupport::objreadableproperties ::oo::configuresupport::objwritableproperties ::oo::configuresupport::readableproperties ::oo::configuresupport::writableproperties ::oo::define::filter ::oo::define::mixin ::oo::define::superclass ::oo::define::variable ::oo::objdefine::filter ::oo::objdefine::mixin ::oo::objdefine::variable}
proc getMethods obj {
list [lsort [info object methods $obj -all]] \
[lsort [info object methods $obj -private]]
}
test oo-34.3 {TIP 380: slots - presence} {
getMethods oo::define::filter
} {{-append -appendifnew -clear -prepend -remove -set} {Get Set}}
test oo-34.4 {TIP 380: slots - presence} {
getMethods oo::define::mixin
} {{-append -appendifnew -clear -prepend -remove -set} {--default-operation Get Resolve Set}}
test oo-34.5 {TIP 380: slots - presence} {
getMethods oo::define::superclass
} {{-append -appendifnew -clear -prepend -remove -set} {--default-operation Get Resolve Set}}
test oo-34.6 {TIP 380: slots - presence} {
getMethods oo::define::variable
} {{-append -appendifnew -clear -prepend -remove -set} {Get Set}}
test oo-34.7 {TIP 380: slots - presence} {
getMethods oo::objdefine::filter
} {{-append -appendifnew -clear -prepend -remove -set} {Get Set}}
test oo-34.8 {TIP 380: slots - presence} {
getMethods oo::objdefine::mixin
} {{-append -appendifnew -clear -prepend -remove -set} {--default-operation Get Resolve Set}}
test oo-34.9 {TIP 380: slots - presence} {
getMethods oo::objdefine::variable
} {{-append -appendifnew -clear -prepend -remove -set} {Get Set}}
test oo-34.10 {TIP 516: slots - resolution} -setup {
oo::class create parent
set result {}
oo::class create 516a { superclass parent }
oo::class create 516b { superclass parent }
oo::class create 516c { superclass parent }
namespace eval 516test {
|
Changes to tools/tclOOScript.tcl.
149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 ... 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 ... 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 ... 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 ... 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 ... 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 |
return
}
foreach c [info class superclass $class] {
set d [DelegateName $c]
if {![info object isa class $d]} {
continue
}
define $delegate ::oo::define::superclass -append $d
}
objdefine $class ::oo::objdefine::mixin -append $delegate
}
# ----------------------------------------------------------------------
#
# UpdateClassDelegatesAfterClone --
#
# Support code that is like [MixinClassDelegates] except for when a
................................................................................
#
# Basic slot getter. Retrieves the contents of the slot.
# Particular slots must provide concrete non-erroring
# implementation.
#
# ------------------------------------------------------------------
method Get {} {
return -code error -errorcode {TCLOO ABSTRACT_SLOT} "unimplemented"
}
# ------------------------------------------------------------------
#
# Slot Set --
#
# Basic slot setter. Sets the contents of the slot. Particular
# slots must provide concrete non-erroring implementation.
#
# ------------------------------------------------------------------
method Set list {
return -code error -errorcode {TCLOO ABSTRACT_SLOT} "unimplemented"
}
# ------------------------------------------------------------------
#
# Slot Resolve --
#
# Helper that lets a slot convert a list of arguments of a
# particular type to their canonical forms. Defaults to doing
# nothing (suitable for simple strings).
#
# ------------------------------------------------------------------
method Resolve list {
return $list
}
# ------------------------------------------------------------------
#
# Slot -set, -append, -clear, --default-operation --
#
# Standard public slot operations. If a slot can't figure out
# what method to call directly, it uses --default-operation.
#
# ------------------------------------------------------------------
method -set args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
tailcall my Set $args
}
method -append args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
set current [uplevel 1 [list $my Get]]
tailcall my Set [list {*}$current {*}$args]
}
method -clear {} {tailcall my Set {}}
method -prepend args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
set current [uplevel 1 [list $my Get]]
tailcall my Set [list {*}$args {*}$current]
}
method -remove args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
set current [uplevel 1 [list $my Get]]
tailcall my Set [lmap val $current {
if {$val in $args} continue else {set val}
}]
}
# Default handling
forward --default-operation my -append
method unknown {args} {
set def --default-operation
if {[llength $args] == 0} {
tailcall my $def
} elseif {![string match -* [lindex $args 0]]} {
tailcall my $def {*}$args
}
next {*}$args
}
# Set up what is exported and what isn't
export -set -append -clear -prepend -remove
unexport unknown destroy
}
# Set the default operation differently for these slots
objdefine define::superclass forward --default-operation my -set
objdefine define::mixin forward --default-operation my -set
objdefine objdefine::mixin forward --default-operation my -set
................................................................................
#
# Handler for cloning objects that clones basic bits (only!) of the
# object's namespace. Non-procedures, traces, sub-namespaces, etc. need
# more complex (and class-specific) handling.
#
# ----------------------------------------------------------------------
define object method <cloned> {originObject} {
# Copy over the procedures from the original namespace
foreach p [info procs [info object namespace $originObject]::*] {
set args [info args $p]
set idx -1
foreach a $args {
if {[info default $p $a d]} {
lset args [incr idx] [list $a $d]
................................................................................
#
# oo::class <cloned> --
#
# Handler for cloning classes, which fixes up the delegates.
#
# ----------------------------------------------------------------------
define class method <cloned> {originObject} {
next $originObject
# Rebuild the class inheritance delegation class
::oo::UpdateClassDelegatesAfterClone $originObject [self]
}
# ----------------------------------------------------------------------
#
................................................................................
if {![info exists object] || ![info object isa object $object]} {
set object [next {*}$args]
::oo::objdefine $object {
method destroy {} {
::return -code error -errorcode {TCLOO SINGLETON} \
"may not destroy a singleton object"
}
method <cloned> {originObject} {
::return -code error -errorcode {TCLOO SINGLETON} \
"may not clone a singleton object"
}
}
}
return $object
}
................................................................................
::oo::class create configurable {
private variable my
#
# configure --
# Method for providing client access to the property mechanism.
# Has a user-facing API similar to that of [chan configure].
#
method configure args {
::if {![::info exists my]} {
::set my [::namespace which my]
}
::if {[::llength $args] == 0} {
# Read all properties
::oo::configuresupport::ReadAll [self] $my
} elseif {[::llength $args] == 1} {
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return
}
foreach c [info class superclass $class] {
set d [DelegateName $c]
if {![info object isa class $d]} {
continue
}
define $delegate ::oo::define::superclass -appendifnew $d
}
objdefine $class ::oo::objdefine::mixin -appendifnew $delegate
}
# ----------------------------------------------------------------------
#
# UpdateClassDelegatesAfterClone --
#
# Support code that is like [MixinClassDelegates] except for when a
................................................................................
#
# Basic slot getter. Retrieves the contents of the slot.
# Particular slots must provide concrete non-erroring
# implementation.
#
# ------------------------------------------------------------------
method Get -unexport {} {
return -code error -errorcode {TCLOO ABSTRACT_SLOT} "unimplemented"
}
# ------------------------------------------------------------------
#
# Slot Set --
#
# Basic slot setter. Sets the contents of the slot. Particular
# slots must provide concrete non-erroring implementation.
#
# ------------------------------------------------------------------
method Set -unexport list {
return -code error -errorcode {TCLOO ABSTRACT_SLOT} "unimplemented"
}
# ------------------------------------------------------------------
#
# Slot Resolve --
#
# Helper that lets a slot convert a list of arguments of a
# particular type to their canonical forms. Defaults to doing
# nothing (suitable for simple strings).
#
# ------------------------------------------------------------------
method Resolve -unexport list {
return $list
}
# ------------------------------------------------------------------
#
# Slot -set, -append, -clear, --default-operation --
#
# Standard public slot operations. If a slot can't figure out
# what method to call directly, it uses --default-operation.
#
# ------------------------------------------------------------------
method -set -export args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
tailcall my Set $args
}
method -append -export args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
set current [uplevel 1 [list $my Get]]
tailcall my Set [list {*}$current {*}$args]
}
method -appendifnew -export args {
set my [namespace which my]
set current [uplevel 1 [list $my Get]]
set args [lmap a $args {
set a [uplevel 1 [list $my Resolve $a]]
if {$a in $current} continue
set a
}]
tailcall my Set [list {*}$current {*}$args]
}
method -clear -export {} {tailcall my Set {}}
method -prepend -export args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
set current [uplevel 1 [list $my Get]]
tailcall my Set [list {*}$args {*}$current]
}
method -remove -export args {
set my [namespace which my]
set args [lmap a $args {uplevel 1 [list $my Resolve $a]}]
set current [uplevel 1 [list $my Get]]
tailcall my Set [lmap val $current {
if {$val in $args} continue else {set val}
}]
}
# Default handling
forward --default-operation my -append
method unknown -unexport {args} {
set def --default-operation
if {[llength $args] == 0} {
tailcall my $def
} elseif {![string match -* [lindex $args 0]]} {
tailcall my $def {*}$args
}
next {*}$args
}
# Hide destroy
unexport destroy
}
# Set the default operation differently for these slots
objdefine define::superclass forward --default-operation my -set
objdefine define::mixin forward --default-operation my -set
objdefine objdefine::mixin forward --default-operation my -set
................................................................................
#
# Handler for cloning objects that clones basic bits (only!) of the
# object's namespace. Non-procedures, traces, sub-namespaces, etc. need
# more complex (and class-specific) handling.
#
# ----------------------------------------------------------------------
define object method <cloned> -unexport {originObject} {
# Copy over the procedures from the original namespace
foreach p [info procs [info object namespace $originObject]::*] {
set args [info args $p]
set idx -1
foreach a $args {
if {[info default $p $a d]} {
lset args [incr idx] [list $a $d]
................................................................................
#
# oo::class <cloned> --
#
# Handler for cloning classes, which fixes up the delegates.
#
# ----------------------------------------------------------------------
define class method <cloned> -unexport {originObject} {
next $originObject
# Rebuild the class inheritance delegation class
::oo::UpdateClassDelegatesAfterClone $originObject [self]
}
# ----------------------------------------------------------------------
#
................................................................................
if {![info exists object] || ![info object isa object $object]} {
set object [next {*}$args]
::oo::objdefine $object {
method destroy {} {
::return -code error -errorcode {TCLOO SINGLETON} \
"may not destroy a singleton object"
}
method <cloned> -unexport {originObject} {
::return -code error -errorcode {TCLOO SINGLETON} \
"may not clone a singleton object"
}
}
}
return $object
}
................................................................................
::oo::class create configurable {
private variable my
#
# configure --
# Method for providing client access to the property mechanism.
# Has a user-facing API similar to that of [chan configure].
#
method configure -export args {
::if {![::info exists my]} {
::set my [::namespace which my]
}
::if {[::llength $args] == 0} {
# Read all properties
::oo::configuresupport::ReadAll [self] $my
} elseif {[::llength $args] == 1} {
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