NAME<\/a> ______________________________________________________________________________<\/p>\n oo::class \u2212 class of all classes<\/p>\n package require TclOO<\/p>\n oo::class<\/b> method<\/i> ?arg …<\/i>?<\/p>\n oo::object<\/b> Classes are objects that can manufacture other objects according to a pattern stored in the factory object (the class). An instance of the class is created by calling one of the class\u2019s factory methods, typically either create<\/b> if an explicit name is being given, or new<\/b> if an arbitrary unique name is to be automatically selected.<\/p>\n The oo::class<\/b> class is the class of all classes; every class is an instance of this class, which is consequently an instance of itself. This class is a subclass of oo::object<\/b>, so every class is also an object. Additional metaclasses (i.e., classes of classes) can be defined if necessary by subclassing oo::class<\/b>. Note that the oo::class<\/b> object hides the new<\/b> method on itself, so new classes should always be made using the create<\/b> method.<\/p>\n CONSTRUCTOR<\/b> DESTRUCTOR<\/b> EXPORTED METHODS<\/b> This creates a new instance of the class cls<\/i> called name<\/i> (which is resolved within the calling context\u2019s namespace if not fully qualified), passing the arguments, arg …<\/i>, to the constructor, and (if that returns a successful result) returning the fully qualified name of the created object (the result of the constructor is ignored). If the constructor fails (i.e. returns a non-OK result) then the object is destroyed and the error message is the result of this method call.<\/p>\n cls<\/i> new<\/b> ?arg …<\/i>?<\/p>\n This creates a new instance of the class cls<\/i> with a new unique name, passing the arguments, arg …<\/i>, to the constructor, and (if that returns a successful result) returning the fully qualified name of the created object (the result of the constructor is ignored). If the constructor fails (i.e., returns a non-OK result) then the object is destroyed and the error message is the result of this method call.<\/p>\n Note that this method is not exported by the oo::class<\/b> object itself, so classes should not be created using this method.<\/p>\n NON-EXPORTED METHODS<\/b> This creates a new instance of the class cls<\/i> called name<\/i> (which is resolved within the calling context\u2019s namespace if not fully qualified), passing the arguments, arg …<\/i>, to the constructor, and (if that returns a successful result) returning the fully qualified name of the created object (the result of the constructor is ignored). The name of the instance\u2019s internal namespace will be nsName<\/i> unless that namespace already exists (when an arbitrary name will be chosen instead). If the constructor fails (i.e., returns a non-OK result) then the object is destroyed and the error message is the result of this method call.<\/p>\n This example defines a simple class hierarchy and creates a new instance of it. It then invokes a method of the object before destroying the hierarchy and showing that the destruction is transitive.<\/p>\n oo::class create<\/b> fruit { oo::define(n), oo::object(n)<\/p>\n class, metaclass, object<\/p>\n oo::class \u2212 class of all classes <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3783,1],"tags":[2635,2648],"class_list":["post-5955","post","type-post","status-publish","format-standard","hentry","category-n-comandos-tcl-tk","category-sin-categoria","tag-mann","tag-oo_class"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/5955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=5955"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/5955\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=5955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=5955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=5955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
SYNOPSIS<\/a>
CLASS HIERARCHY<\/a>
DESCRIPTION<\/a>
EXAMPLES<\/a>
SEE ALSO<\/a>
KEYWORDS<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
CLASS HIERARCHY <\/a> <\/h2>\n
\u2192 oo::class<\/b> ______________________________________________________________________________<\/p>\nDESCRIPTION <\/a> <\/h2>\n
The constructor of the oo::class<\/b> class takes an optional argument which, if present, is sent to the oo::define<\/b> command (along with the name of the newly-created class) to allow the class to be conveniently configured at creation time.<\/p>\n
The oo::class<\/b> class does not define an explicit destructor. However, when a class is destroyed, all its subclasses and instances are also destroyed, along with all objects that it has been mixed into.<\/p>\n
cls<\/i> create<\/b> name<\/i> ?arg …<\/i>?<\/p>\n
The oo::class<\/b> class supports the following non-exported methods:
cls<\/i> createWithNamespace<\/b> name nsName<\/i> ?arg …<\/i>?<\/p>\nEXAMPLES <\/a> <\/h2>\n
method eat {} {
puts “yummy!”
}
}
oo::class create<\/b> banana {
superclass fruit
constructor {} {
my variable peeled
set peeled 0
}
method peel {} {
my variable peeled
set peeled 1
puts “skin now off”
}
method edible? {} {
my variable peeled
return $peeled
}
method eat {} {
if {![my edible?]} {
my peel
}
next
}
}
set b [banana new<\/b>]
$b eat \u2192 prints “skin now off” and “yummy!”<\/i>
fruit destroy
$b eat \u2192 error “unknown command”<\/i><\/p>\nSEE ALSO <\/a> <\/h2>\n
KEYWORDS <\/a> <\/h2>\n
\n","protected":false},"excerpt":{"rendered":"