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                    <a href="../../../html/index.html">Home</a> &raquo; <a href="../../../html/ops.html">Opcodes</a> &raquo; Class and Object Opcodes
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<h1><a name="NAME"
>NAME</a></h1>

<p>object.ops &#45; Class and Object Opcodes</p>

<h1><a name="DESCRIPTION"
>DESCRIPTION</a></h1>

<p>Parrot&#39;s library of object ops</p>

<dl>
<dt><a name="callmethodcc(invar_PMC,_in_STR)"
><b>callmethodcc</b>(invar PMC,
in STR)</a></dt>
Call method $2 with invocant $1 and generate a new return continuation.
The invocant ($1) is used for method lookup.
The object is passed as the first argument in <b>set_args</b>.Throws a Method_Not_Found_Exception for a non&#45;existent method.
<dt><a name="callmethodcc(invar_PMC,_invar_PMC)"
><b>callmethodcc</b>(invar PMC,
invar PMC)</a></dt>
Like above but use the Sub object $2 as method.
<dt><a name="callmethod(invar_PMC,_in_STR,_invar_PMC)"
><b>callmethod</b>(invar PMC,
in STR,
invar PMC)</a></dt>

<dt><a name="callmethod(invar_PMC,_invar_PMC,_invar_PMC)"
><b>callmethod</b>(invar PMC,
invar PMC,
invar PMC)</a></dt>
Like above,
but use continuation $3 instead of creating a new continuation.
<dt><a name="tailcallmethod(invar_PMC,_in_STR)"
><b>tailcallmethod</b>(invar PMC,
in STR)</a></dt>

<dt><a name="tailcallmethod(invar_PMC,_invar_PMC)"
><b>tailcallmethod</b>(invar PMC,
invar PMC)</a></dt>
Make a tailcall to method $2 with invocant $1.
<dt><a name="addmethod(invar_PMC,_in_STR,_invar_PMC)"
><b>addmethod</b>(invar PMC,
in STR,
invar PMC)</a></dt>
Adds $3 as a method named $2 to $1.
<dt><a name="can(out_INT,_invar_PMC,_in_STR)"
><b>can</b>(out INT,
invar PMC,
in STR)</a></dt>
Sets result $1 to the result of the &#34;can&#34; vtable function for PMC $2,
given method $3.
<dt><a name="does(out_INT,_invar_PMC,_in_STR)"
><b>does</b>(out INT,
invar PMC,
in STR)</a></dt>
Sets result $1 to the result of the &#34;does&#34; vtable function for PMC $2,
given the role of name $3.
<dt><a name="does(out_INT,_invar_PMC,_in_PMC)"
><b>does</b>(out INT,
invar PMC,
in PMC)</a></dt>
Sets result $1 to the result of the &#34;does&#34; vtable function for PMC $2,
given the role $3.
<dt><a name="isa(out_INT,_invar_PMC,_in_STR)"
><b>isa</b>(out INT,
invar PMC,
in STR)</a></dt>

<dt><a name="isa(out_INT,_invar_PMC,_in_PMC)"
><b>isa</b>(out INT,
invar PMC,
in PMC)</a></dt>
Sets result $1 to the result of the &#34;isa&#34; vtable function for PMC $2,
given class $3.
<dt><a name="newclass(out_PMC,_in_STR)"
><b>newclass</b>(out PMC,
in STR)</a></dt>
Create a new Parrot&#45;style class,
named $2,
and puts the new PMC for it into $1.
<dt><a name="newclass(out_PMC,_in_PMC)"
><b>newclass</b>(out PMC,
in PMC)</a></dt>
Create a new Parrot&#45;style class,
with the name given in $2 as a key,
namespace,
or string PMC.
<dt><a name="subclass(out_PMC,_in_PMC)"
><b>subclass</b>(out PMC,
in PMC)</a></dt>

<dt><a name="subclass(out_PMC,_in_PMC,_in_STR)"
><b>subclass</b>(out PMC,
in PMC,
in STR)</a></dt>

<dt><a name="subclass(out_PMC,_in_PMC,_in_PMC)"
><b>subclass</b>(out PMC,
in PMC,
in PMC)</a></dt>
Create a new class,
put in $1,
that is a subclass of $2.
$3,
if available and not null,
is the name of the new class&#45;&#45;if not,
the subclass is an anonymous subclass.
<dt><a name="subclass(out_PMC,_in_STR)"
><b>subclass</b>(out PMC,
in STR)</a></dt>

<dt><a name="subclass(out_PMC,_in_STR,_in_STR)"
><b>subclass</b>(out PMC,
in STR,
in STR)</a></dt>

<dt><a name="subclass(out_PMC,_in_STR,_in_PMC)"
><b>subclass</b>(out PMC,
in STR,
in PMC)</a></dt>
Create a new class,
put in $1,
that is a subclass of the class named $2.
$3,
if available and not null,
is the name of the new class&#45;&#45;if not,
the subclass is an anonymous subclass.
<dt><a name="get_class(out_PMC,_in_STR)"
><b>get_class</b>(out PMC,
in STR)</a></dt>

<dt><a name="get_class(out_PMC,_in_PMC)"
><b>get_class</b>(out PMC,
in PMC)</a></dt>
Find the PMC for a class,
by string name or by key.
<dt><a name="class(out_PMC,_invar_PMC)"
><b>class</b>(out PMC,
invar PMC)</a></dt>
Get the class PMC for the object in $2 and put it in $1.
<dt><a name="addparent(invar_PMC,_invar_PMC)"
><b>addparent</b>(invar PMC,
invar PMC)</a></dt>
Add class $2 to the list of parent classes for $1.
<dt><a name="removeparent(invar_PMC,_invar_PMC)"
><b>removeparent</b>(invar PMC,
invar PMC)</a></dt>
Remove class $2 from class $1&#39;s list of parents.
<dt><a name="addrole(invar_PMC,_invar_PMC)"
><b>addrole</b>(invar PMC,
invar PMC)</a></dt>
Compose the role $2 into $1.
<dt><a name="addattribute(invar_PMC,_in_STR)"
><b>addattribute</b>(invar PMC,
in STR)</a></dt>
Add the attribute named $2 to the class $1.
<dt><a name="removeattribute(invar_PMC,_in_STR)_(unimplemented)"
><b>removeattribute</b>(invar PMC,
in STR) <b>(unimplemented)</b></a></dt>
Remove attribute $2 from class $1,
specified by name.
<dt><a name="getattribute(out_PMC,_invar_PMC,_in_STR)"
><b>getattribute</b>(out PMC,
invar PMC,
in STR)</a></dt>
Get the attribute $3 from object $2 and put the result in $1.
<dt><a name="getattribute(out_PMC,_invar_PMC,_in_PMC,_in_STR)"
><b>getattribute</b>(out PMC,
invar PMC,
in PMC,
in STR)</a></dt>
Get the attribute $4 from the parent $3 of object $2 and put the result in $1.
(This is useful for storing data for a parent class attribute that is overridden in a child class.) The parent $3 is a class name,
namespace,
or key PMC.
<dt><a name="setattribute(invar_PMC,_in_STR,_invar_PMC)"
><b>setattribute</b>(invar PMC,
in STR,
invar PMC)</a></dt>
Set attribute $2 of object $1 to $3.
<dt><a name="setattribute(invar_PMC,_in_PMC,_in_STR,_invar_PMC)"
><b>setattribute</b>(invar PMC,
in PMC,
in STR,
invar PMC)</a></dt>
Set attribute $3 of the parent $2 of object $1 to $4.
(This is useful for storing data for a parent class attribute that is overridden in a child class.) The parent $2 is a class name,
namespace,
or key PMC.
<dt><a name="inspect(out_PMC,_in_PMC)"
><b>inspect</b>(out PMC,
in PMC)</a></dt>
Sets $1 to a PMC hash of all introspection data available for $2,
keyed on name.
<dt><a name="inspect(out_PMC,_in_PMC,_in_STR)"
><b>inspect</b>(out PMC,
in PMC,
in STR)</a></dt>
Sets $1 to a PMC Hash,
Array,
String,
Integer,
or Number value with introspection information corresponding to the requested string name.</dl>

<h1><a name="COPYRIGHT"
>COPYRIGHT</a></h1>

<p>Copyright (C) 2001&#45;2009,
Parrot Foundation.</p>

<h1><a name="LICENSE"
>LICENSE</a></h1>

<p>This program is free software.
It is subject to the same license as the Parrot interpreter itself.</p>
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