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Overview
Comment:Merge 8.7
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | tip-514
Files: files | file ages | folders
SHA3-256: f6d6fc9952d9111977282052ee90a7676ee30221c78c0594e6f3e5078e10932f
User & Date: jan.nijtmans 2018-09-03 13:45:49
Context
2018-09-05
08:07
Merge 8.7 check-in: 6423bd55ee user: jan.nijtmans tags: tip-514
2018-09-03
13:45
Merge 8.7 check-in: f6d6fc9952 user: jan.nijtmans tags: tip-514
12:53
Eliminate use of wideBiggerThanInt test constraint, since it's the same as {longIs32bit wideIs64bit}... check-in: 30126bea62 user: jan.nijtmans tags: core-8-branch
2018-08-30
21:28
Merge 8.7, and improve TIP implementation (using utility function in more places) check-in: 47b67cd37d user: jan.nijtmans tags: tip-514
Changes
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'\"
'\" Copyright (c) 2018 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH abstract n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
oo::abstract \- a class that does not allow direct instances of itself
.SH SYNOPSIS
.nf
package require TclOO

\fBoo::abstract\fI method \fR?\fIarg ...\fR?
.fi
.SH "CLASS HIERARCHY"
.nf
\fBoo::object\fR
   \(-> \fBoo::class\fR
       \(-> \fBoo::abstract\fR
.fi
.BE
.SH DESCRIPTION
Abstract classes are classes that can contain definitions, but which cannot be
directly manufactured; they are intended to only ever be inherited from and
instantiated indirectly. The characteristic methods of \fBoo::class\fR
(\fBcreate\fR and \fBnew\fR) are not exported by an instance of
\fBoo::abstract\fR.
.PP
Note that \fBoo::abstract\fR is not itself an instance of \fBoo::abstract\fR.
.SS CONSTRUCTOR
The \fBoo::abstract\fR class does not define an explicit constructor; this
means that it is effectively the same as the constructor of the
\fBoo::class\fR class.
.SS DESTRUCTOR
The \fBoo::abstract\fR class does not define an explicit destructor;
destroying an instance of it is just like destroying an ordinary class (and
will destroy all its subclasses).
.SS "EXPORTED METHODS"
The \fBoo::abstract\fR class defines no new exported methods.
.SS "NON-EXPORTED METHODS"
The \fBoo::abstract\fR class explicitly states that \fBcreate\fR,
\fBcreateWithNamespace\fR, and \fBnew\fR are unexported.
.SH EXAMPLES
.PP
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.
.PP
.CS
\fBoo::abstract\fR create fruit {
    method eat {} {
        puts "yummy!"
    }
}
oo::class create banana {
    superclass fruit
    method peel {} {
        puts "skin now off"
    }
}
set b [banana \fBnew\fR]
$b peel              \fI\(-> prints 'skin now off'\fR
$b eat               \fI\(-> prints 'yummy!'\fR
set f [fruit new]    \fI\(-> error 'unknown method "new"...'\fR
.CE
.SH "SEE ALSO"
oo::define(n), oo::object(n)
.SH KEYWORDS
abstract class, class, metaclass, object
.\" Local variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

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'\"
'\" Copyright (c) 2018 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH callback n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
callback, mymethod \- generate callbacks to methods
.SH SYNOPSIS
.nf
package require TclOO

\fBcallback\fR \fImethodName\fR ?\fIarg ...\fR?
\fBmymethod\fR \fImethodName\fR ?\fIarg ...\fR?
.fi
.BE
.SH DESCRIPTION
The \fBcallback\fR command,
'\" Based on notes in the tcllib docs, we know the provenance of mymethod
also called \fBmymethod\fR for compatibility with the ooutil and snit packages
of Tcllib,
and which should only be used from within the context of a call to a method
(i.e. inside a method, constructor or destructor body) is used to generate a
script fragment that will invoke the method, \fImethodName\fR, on the current
object (as reported by \fBself\fR) when executed. Any additional arguments
provided will be provided as leading arguments to the callback. The resulting
script fragment shall be a proper list.
.PP
Note that it is up to the caller to ensure that the current object is able to
handle the call of \fImethodName\fR; this command does not check that.
\fImethodName\fR may refer to any exported or unexported method, but may not
refer to a private method as those can only be invoked directly from within
methods. If there is no such method present at the point when the callback is
invoked, the standard \fBunknown\fR method handler will be called.
.SH EXAMPLE
This is a simple echo server class. The \fBcallback\fR command is used in two
places, to arrange for the incoming socket connections to be handled by the
\fIAccept\fR method, and to arrange for the incoming bytes on those
connections to be handled by the \fIReceive\fR method.
.PP
.CS
oo::class create EchoServer {
    variable server clients
    constructor {port} {
        set server [socket -server [\fBcallback\fR Accept] $port]
        set clients {}
    }
    destructor {
        chan close $server
        foreach client [dict keys $clients] {
            chan close $client
        }
    }

    method Accept {channel clientAddress clientPort} {
        dict set clients $channel [dict create \e
                address $clientAddress port $clientPort]
        chan event $channel readable [\fBcallback\fR Receive $channel]
    }
    method Receive {channel} {
        if {[chan gets $channel line] >= 0} {
            my echo $channel $line
        } else {
            chan close $channel
            dict unset clients $channel
        }
    }

    method echo {channel line} {
        dict with clients $channel {
            chan puts $channel \e
                    [format {[%s:%d] %s} $address $port $line]
        }
    }
}
.CE
.SH "SEE ALSO"
chan(n), fileevent(n), my(n), self(n), socket(n), trace(n)
.SH KEYWORDS
callback, object
.\" Local Variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

Added doc/classvariable.n.




























































































































































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'\"
'\" Copyright (c) 2011-2015 Andreas Kupries
'\" Copyright (c) 2018 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH classvariable n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
classvariable \- create link from local variable to variable in class
.SH SYNOPSIS
.nf
package require TclOO

\fBclassvariable\fR \fIvariableName\fR ?\fI...\fR?
.fi
.BE
.SH DESCRIPTION
The \fBclassvariable\fR command is available within methods. It takes a series
of one or more variable names and makes them available in the method's scope;
those variable names must not be qualified and must not refer to array
elements. The originating scope for the variables is the namespace of the
class that the method was defined by. In other words, the referenced variables
are shared between all instances of that class.
.PP
Note: This command is equivalent to the command \fBtypevariable\fR provided by
the snit package in tcllib for approximately the same purpose. If used in a
method defined directly on a class instance (e.g., through the
\fBoo::objdefine\fR \fBmethod\fR definition) this is very much like just
using:
.PP
.CS
namespace upvar [namespace current] $var $var
.CE
.PP
for each variable listed to \fBclassvariable\fR.
.SH EXAMPLE
This class counts how many instances of it have been made.
.PP
.CS
oo::class create Counted {
    initialise {
        variable count 0
    }

    variable number
    constructor {} {
        \fBclassvariable\fR count
        set number [incr count]
    }

    method report {} {
        \fBclassvariable\fR count
        puts "This is instance $number of $count"
    }
}

set a [Counted new]
set b [Counted new]
$a report
        \fI\(-> This is instance 1 of 2\fR
set c [Counted new]
$b report
        \fI\(-> This is instance 2 of 3\fR
$c report
        \fI\(-> This is instance 3 of 3\fR
.CE
.SH "SEE ALSO"
global(n), namespace(n), oo::class(n), oo::define(n), upvar(n), variable(n)
.SH KEYWORDS
class, class variable, variable
.\" Local Variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

Changes to doc/define.n.

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'\"
'\" Copyright (c) 2007 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH define n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
................................................................................
\fIarg\fR arguments; when the second is present, it is exactly as if all the
arguments from \fIsubcommand\fR onwards are made into a list and that list is
used as the \fIdefScript\fR argument.
.SS "CONFIGURING CLASSES"
.PP
The following commands are supported in the \fIdefScript\fR for
\fBoo::define\fR, each of which may also be used in the \fIsubcommand\fR form:





















.TP
\fBconstructor\fI argList bodyScript\fR
.
This creates or updates the constructor for a class. The formal arguments to
the constructor (defined using the same format as for the Tcl \fBproc\fR
command) will be \fIargList\fR, and the body of the constructor will be
\fIbodyScript\fR. When the body of the constructor is evaluated, the current
................................................................................
.RS
.PP
.VS TIP500
If in a private definition context (see the \fBprivate\fR definition command,
below), this command creates private forwarded methods.
.VE TIP500
.RE









.TP
\fBmethod\fI name argList bodyScript\fR
.
This creates or updates a method that is implemented as a procedure-like
script. The name of the method is \fIname\fR, the formal arguments to the
method (defined using the same format as for the Tcl \fBproc\fR command) will
be \fIargList\fR, and the body of the method will be \fIbodyScript\fR. When
................................................................................
}
\fBoo::objdefine\fR inst {
    \fBmixin -append\fR B
}
inst m1              \fI\(-> prints "red brick"\fR
inst m2              \fI\(-> prints "blue brick"\fR
.CE














































































.SH "SEE ALSO"
next(n), oo::class(n), oo::object(n)
.SH KEYWORDS
class, definition, method, object, slot
.\" Local variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:
|







 







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'\"
'\" Copyright (c) 2007-2018 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH define n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
................................................................................
\fIarg\fR arguments; when the second is present, it is exactly as if all the
arguments from \fIsubcommand\fR onwards are made into a list and that list is
used as the \fIdefScript\fR argument.
.SS "CONFIGURING CLASSES"
.PP
The following commands are supported in the \fIdefScript\fR for
\fBoo::define\fR, each of which may also be used in the \fIsubcommand\fR form:
.TP
\fBclassmethod\fI name\fR ?\fIargList bodyScrip\fR?
.VS TIP478
This creates a class method, or (if \fIargList\fR and \fIbodyScript\fR are
omitted) promotes an existing method on the class object to be a class
method. The \fIname\fR, \fIargList\fR and \fIbodyScript\fR arguments are as in
the \fBmethod\fR definition, below.
.RS
.PP
Class methods can be called on either the class itself or on the instances of
that class. When they are called, the current object (see the \fBself\R and
\fBmy\fR commands) is the class on which they are called or the class of the
instance on which they are called, depending on whether they are called on the
class or an instance of the class, respectively. If called on a subclass or
instance of the subclass, the current object is the subclass.
.PP
In a private definition context, the methods as invoked on classes are
\fInot\fR private, but the methods as invoked on instances of classes are
private.
.RE
.VE TIP478
.TP
\fBconstructor\fI argList bodyScript\fR
.
This creates or updates the constructor for a class. The formal arguments to
the constructor (defined using the same format as for the Tcl \fBproc\fR
command) will be \fIargList\fR, and the body of the constructor will be
\fIbodyScript\fR. When the body of the constructor is evaluated, the current
................................................................................
.RS
.PP
.VS TIP500
If in a private definition context (see the \fBprivate\fR definition command,
below), this command creates private forwarded methods.
.VE TIP500
.RE
.TP
\fBinitialise\fI script\fR
.TP
\fBinitialize\fI script\fR
.VS TIP478
This evaluates \fIscript\fR in a context which supports local variables and
where the current namespace is the instance namespace of the class object
itself. This is useful for setting up, e.g., class-scoped variables.
.VE TIP478
.TP
\fBmethod\fI name argList bodyScript\fR
.
This creates or updates a method that is implemented as a procedure-like
script. The name of the method is \fIname\fR, the formal arguments to the
method (defined using the same format as for the Tcl \fBproc\fR command) will
be \fIargList\fR, and the body of the method will be \fIbodyScript\fR. When
................................................................................
}
\fBoo::objdefine\fR inst {
    \fBmixin -append\fR B
}
inst m1              \fI\(-> prints "red brick"\fR
inst m2              \fI\(-> prints "blue brick"\fR
.CE
.PP
.VS TIP478
This example shows how to create and use class variables. It is a class that
counts how many instances of itself have been made.
.PP
.CS
oo::class create Counted
\fBoo::define\fR Counted {
    \fBinitialise\fR {
        variable count 0
    }

    \fBvariable\fR number
    \fBconstructor\fR {} {
        classvariable count
        set number [incr count]
    }

    \fBmethod\fR report {} {
        classvariable count
        puts "This is instance $number of $count"
    }
}

set a [Counted new]
set b [Counted new]
$a report
        \fI\(-> This is instance 1 of 2\fR
set c [Counted new]
$b report
        \fI\(-> This is instance 2 of 3\fR
$c report
        \fI\(-> This is instance 3 of 3\fR
.CE
.PP
This example demonstrates how to use class methods. (Note that the constructor
for \fBoo::class\fR calls \fBoo::define\fR on the class.)
.PP
.CS
oo::class create DBTable {
    \fBclassmethod\fR find {description} {
        puts "DB: locate row from [self] matching $description"
        return [my new]
    }
    \fBclassmethod\fR insert {description} {
        puts "DB: create row in [self] matching $description"
        return [my new]
    }
    \fBmethod\fR update {description} {
        puts "DB: update row [self] with $description"
    }
    \fBmethod\fR delete {} {
        puts "DB: delete row [self]"
        my destroy; # Just delete the object, not the DB row
    }
}

oo::class create Users {
    \fBsuperclass\fR DBTable
}
oo::class create Groups {
    \fBsuperclass\fR DBTable
}

set u1 [Users insert "username=abc"]
        \fI\(-> DB: create row from ::Users matching username=abc\fR
set u2 [Users insert "username=def"]
        \fI\(-> DB: create row from ::Users matching username=def\fR
$u2 update "group=NULL"
        \fI\(-> DB: update row ::oo::Obj124 with group=NULL\fR
$u1 delete
        \fI\(-> DB: delete row ::oo::Obj123\fR
set g [Group find "groupname=webadmins"]
        \fI\(-> DB: locate row ::Group with groupname=webadmins\fR
$g update "emailaddress=admins"
        \fI\(-> DB: update row ::oo::Obj125 with emailaddress=admins\fR
.CE
.VE TIP478
.SH "SEE ALSO"
next(n), oo::class(n), oo::object(n)
.SH KEYWORDS
class, definition, method, object, slot
.\" Local variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

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'\"
'\" Copyright (c) 2011-2015 Andreas Kupries
'\" Copyright (c) 2018 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH link n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
link \- create link from command to method of object
.SH SYNOPSIS
.nf
package require TclOO

\fBlink\fR \fImethodName\fR ?\fI...\fR?
\fBlink\fR \fB{\fIcommandName methodName\fB}\fR ?\fI...\fR?
.fi
.BE
.SH DESCRIPTION
The \fBlink\fR command is available within methods. It takes a series of one
or more method names (\fImethodName ...\fR) and/or pairs of command- and
method-name (\fB{\fIcommandName methodName\fB}\fR) and makes the named methods
available as commands without requiring the explicit use of the name of the
object or the \fBmy\fR command. The method does not need to exist at the time
that the link is made; if the link command is invoked when the method does not
exist, the standard \fBunknown\fR method handling system is used.
.PP
The command name under which the method becomes available defaults to the
method name, except where explicitly specified through an alias/method pair.
Formally, every argument must be a list; if the list has two elements, the
first element is the name of the command to create and the second element is
the name of the method of the current object to which the command links;
otherwise, the name of the command and the name of the method are the same
string (the first element of the list).
.PP
If the name of the command is not a fully-qualified command name, it will be
resolved with respect to the current namespace (i.e., the object namespace).
.SH EXAMPLES
This demonstrates linking a single method in various ways. First it makes a
simple link, then a renamed link, then an external link. Note that the method
itself is unexported, but that it can still be called directly from outside
the class.
.PP
.CS
oo::class create ABC {
    method Foo {} {
        puts "This is Foo in [self]"
    }

    constructor {} {
        \fBlink\fR Foo
        # The method foo is now directly accessible as foo here
        \fBlink\fR {bar Foo}
        # The method foo is now directly accessible as bar
        \fBlink\fR {::ExternalCall Foo}
        # The method foo is now directly accessible in the global
        # namespace as ExternalCall
    }

    method grill {} {
        puts "Step 1:"
        Foo
        puts "Step 2:"
        bar
    }
}

ABC create abc
abc grill
        \fI\(-> Step 1:\fR
        \fI\(-> This is foo in ::abc\fR
        \fI\(-> Step 2:\fR
        \fI\(-> This is foo in ::abc\fR
# Direct access via the linked command
puts "Step 3:"; ExternalCall
        \fI\(-> Step 3:\fR
        \fI\(-> This is foo in ::abc\fR
.CE
.PP
This example shows that multiple linked commands can be made in a call to
\fBlink\fR, and that they can handle arguments.
.PP
.CS
oo::class create Ex {
    constructor {} {
        \fBlink\fR a b c
        # The methods a, b, and c (defined below) are all now
        # directly acessible within methods under their own names.
    }

    method a {} {
        puts "This is a"
    }
    method b {x} {
        puts "This is b($x)"
    }
    method c {y z} {
        puts "This is c($y,$z)"
    }

    method call {p q r} {
        a
        b $p
        c $q $r
    }
}

set o [Ex new]
$o 3 5 7
        \fI\(-> This is a\fR
        \fI\(-> This is b(3)\fR
        \fI\(-> This is c(5,7)\fR
.CE
.SH "SEE ALSO"
interp(n), my(n), oo::class(n), oo::define(n)
.SH KEYWORDS
command, method, object
.\" Local Variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH my n 0.1 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
my \- invoke any method of current object
.SH SYNOPSIS
.nf
package require TclOO

\fBmy\fI methodName\fR ?\fIarg ...\fR?

.fi
.BE
.SH DESCRIPTION
.PP
The \fBmy\fR command is used to allow methods of objects to invoke methods





of the object (or its class). In particular, the set of valid values for
\fImethodName\fR is the set of all methods supported by an object and its
superclasses, including those that are not exported
.VS TIP500
and private methods of the object or class when used within another method
defined by that object or class.
.VE TIP500

The object upon which the method is invoked is the one that owns the namespace
that the \fBmy\fR command is contained in initially (\fBNB:\fR the link
remains if the command is renamed), which is the currently invoked object by
default.







.PP
Each object has its own \fBmy\fR command, contained in its instance namespace.

.SH EXAMPLES
.PP
This example shows basic use of \fBmy\fR to use the \fBvariables\fR method of
the \fBoo::object\fR class, which is not publicly visible by default:
.PP
.CS
oo::class create c {
................................................................................
o count              \fI\(-> prints "1"\fR
o count              \fI\(-> prints "2"\fR
o count              \fI\(-> prints "3"\fR
.CE
.PP
This example shows how you can use \fBmy\fR to make callbacks to private
methods from outside the object (from a \fBtrace\fR), using
\fBnamespace code\fR to enter the correct context:

.PP
.CS
oo::class create HasCallback {
    method makeCallback {} {
        return [namespace code {
            \fBmy\fR Callback
        }]
................................................................................
    }
}

set o [HasCallback new]
trace add variable xyz write [$o makeCallback]
set xyz "called"     \fI\(-> prints "callback: xyz {} write"\fR
.CE
































.SH "SEE ALSO"
next(n), oo::object(n), self(n)
.SH KEYWORDS
method, method visibility, object, private method, public method
.\" Local variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:






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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH my n 0.1 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
my, myclass \- invoke any method of current object or its class
.SH SYNOPSIS
.nf
package require TclOO

\fBmy\fI methodName\fR ?\fIarg ...\fR?
\fBmyclass\fI methodName\fR ?\fIarg ...\fR?
.fi
.BE
.SH DESCRIPTION
.PP
The \fBmy\fR command is used to allow methods of objects to invoke methods
of the object (or its class),
.VS TIP478
and he \fBmyclass\fR command is used to allow methods of objects to invoke
methods of the current class of the object \fIas an object\fR.
.VE TIP478
In particular, the set of valid values for
\fImethodName\fR is the set of all methods supported by an object and its
superclasses, including those that are not exported
.VS TIP500
and private methods of the object or class when used within another method
defined by that object or class.
.VE TIP500
.PP
The object upon which the method is invoked via \fBmy\fR is the one that owns
the namespace that the \fBmy\fR command is contained in initially (\fBNB:\fR the link
remains if the command is renamed), which is the currently invoked object by
default.
.VS TIP478
Similarly, the object on which the method is invoked via \fBmyclass\fR is the
object that is the current class of the object that owns the namespace that
the \fBmyclass\fR command is contained in initially. As with \fBmy\fR, the
link remains even if the command is renamed into another namespace, and
defaults to being the manufacturing class of the current object.
.VE TIP478
.PP
Each object has its own \fBmy\fR and \fBmyclass\fR commands, contained in its
instance namespace.
.SH EXAMPLES
.PP
This example shows basic use of \fBmy\fR to use the \fBvariables\fR method of
the \fBoo::object\fR class, which is not publicly visible by default:
.PP
.CS
oo::class create c {
................................................................................
o count              \fI\(-> prints "1"\fR
o count              \fI\(-> prints "2"\fR
o count              \fI\(-> prints "3"\fR
.CE
.PP
This example shows how you can use \fBmy\fR to make callbacks to private
methods from outside the object (from a \fBtrace\fR), using
\fBnamespace code\fR to enter the correct context. (See the \fBcallback\fR
command for the recommended way of doing this.)
.PP
.CS
oo::class create HasCallback {
    method makeCallback {} {
        return [namespace code {
            \fBmy\fR Callback
        }]
................................................................................
    }
}

set o [HasCallback new]
trace add variable xyz write [$o makeCallback]
set xyz "called"     \fI\(-> prints "callback: xyz {} write"\fR
.CE
.PP
.VS TIP478
This example shows how to access a private method of a class from an instance
of that class. (See the \fBclassmethod\fR declaration in \fBoo::define\fR for
a higher level interface for doing this.)
.PP
.CS
oo::class create CountedSteps {
    self {
        variable count
        method Count {} {
            return [incr count]
        }
    }
    method advanceTwice {} {
        puts "in [self] step A: [\fBmyclass\fR Count]"
        puts "in [self] step B: [\fBmyclass\fR Count]"
    }
}

CountedSteps create x
CountedSteps create y
x advanceTwice       \fI\(-> prints "in ::x step A: 1"\fR
                     \fI\(-> prints "in ::x step B: 2"\fR
y advanceTwice       \fI\(-> prints "in ::y step A: 3"\fR
                     \fI\(-> prints "in ::y step B: 4"\fR
x advanceTwice       \fI\(-> prints "in ::x step A: 5"\fR
                     \fI\(-> prints "in ::x step B: 6"\fR
y advanceTwice       \fI\(-> prints "in ::y step A: 7"\fR
                     \fI\(-> prints "in ::y step B: 8"\fR
.CE
.VE TIP478
.SH "SEE ALSO"
next(n), oo::object(n), self(n)
.SH KEYWORDS
method, method visibility, object, private method, public method
.\" Local variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

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'\"
'\" Copyright (c) 2018 Donal K. Fellows
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH singleton n 0.3 TclOO "TclOO Commands"
.so man.macros
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
oo::singleton \- a class that does only allows one instance of itself
.SH SYNOPSIS
.nf
package require TclOO

\fBoo::singleton\fI method \fR?\fIarg ...\fR?
.fi
.SH "CLASS HIERARCHY"
.nf
\fBoo::object\fR
   \(-> \fBoo::class\fR
       \(-> \fBoo::singleton\fR
.fi
.BE
.SH DESCRIPTION
Singleton classes are classes that only permit at most one instance of
themselves to exist. They unexport the \fBcreate\fR and
\fBcreateWithNamespace\fR methods entirely, and override the \fBnew\fR method
so that it only makes a new instance if there is no existing instance.  It is
not recommended to inherit from a singleton class; singleton-ness is \fInot\fR
inherited. It is not recommended that a singleton class's constructor take any
arguments.
.PP
Instances have their\fB destroy\fR method overridden with a method that always
returns an error in order to discourage destruction of the object, but
destruction remains possible if strictly necessary (e.g., by destroying the
class or using \fBrename\fR to delete it). They also have a (non-exported)
\fB<cloned>\fR method defined on them that similarly always returns errors to
make attempts to use the singleton instance with \fBoo::copy\fR fail.
.SS CONSTRUCTOR
The \fBoo::singleton\fR class does not define an explicit constructor; this
means that it is effectively the same as the constructor of the
\fBoo::class\fR class.
.SS DESTRUCTOR
The \fBoo::singleton\fR class does not define an explicit destructor;
destroying an instance of it is just like destroying an ordinary class (and
will destroy the singleton object).
.SS "EXPORTED METHODS"
.TP
\fIcls \fBnew \fR?\fIarg ...\fR?
.
This returns the current instance of the singleton class, if one exists, and
creates a new instance only if there is no existing instance. The additional
arguments, \fIarg ...\fR, are only used if a new instance is actually
manufactured; that construction is via the \fBoo::class\fR class's \fBnew\fR
method.
.RS
.PP
This is an override of the behaviour of a superclass's method with an
identical call signature to the superclass's implementation.
.RE
.SS "NON-EXPORTED METHODS"
The \fBoo::singleton\fR class explicitly states that \fBcreate\fR and
\fBcreateWithNamespace\fR are unexported; callers should not assume that they
have control over either the name or the namespace name of the singleton instance.
.SH EXAMPLE
.PP
This example demonstrates that there is only one instance even though the
\fBnew\fR method is called three times.
.PP
.CS
\fBoo::singleton\fR create Highlander {
    method say {} {
        puts "there can be only one"
    }
}

set h1 [Highlander new]
set h2 [Highlander new]
if {$h1 eq $h2} {
    puts "equal objects"    \fI\(-> prints "equal objects"\fR
}
set h3 [Highlander new]
if {$h1 eq $h3} {
    puts "equal objects"    \fI\(-> prints "equal objects"\fR
}
.CE
.PP
Note that the name of the instance of the singleton is not guaranteed to be
anything in particular.
.SH "SEE ALSO"
oo::class(n)
.SH KEYWORDS
class, metaclass, object, single instance
.\" Local variables:
.\" mode: nroff
.\" fill-column: 78
.\" End:

Changes to generic/tclOO.c.

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2537
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			    Tcl_Obj *const *objv);
static int		PrivateObjectCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv);
static int		PrivateNRObjectCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv);








/*
 * Methods in the oo::object and oo::class classes. First, we define a helper
 * macro that makes building the method type declaration structure a lot
 * easier. No point in making life harder than it has to be!
 *
 * Note that the core methods don't need clone or free proc callbacks.
................................................................................
"package ifneeded TclOO " TCLOO_PATCHLEVEL " {# Already present, OK?};"
"namespace eval ::oo { variable version " TCLOO_VERSION " };"
"namespace eval ::oo { variable patchlevel " TCLOO_PATCHLEVEL " };";
/* "tcl_findLibrary tcloo $oo::version $oo::version" */
/* " tcloo.tcl OO_LIBRARY oo::library;"; */

/*
 * The scripted part of the definitions of slots.
 */

static const char *slotScript =
"::oo::define ::oo::Slot {\n"
"    method Get {} {error unimplemented}\n"
"    method Set list {error unimplemented}\n"
"    method -set args {\n"
"        uplevel 1 [list [namespace which my] Set $args]\n"
"    }\n"
"    method -append args {\n"
"        uplevel 1 [list [namespace which my] Set [list"
"                {*}[uplevel 1 [list [namespace which my] Get]] {*}$args]]\n"
"    }\n"
"    method -clear {} {uplevel 1 [list [namespace which my] Set {}]}\n"
"    forward --default-operation my -append\n"
"    method unknown {args} {\n"
"        set def --default-operation\n"
"        if {[llength $args] == 0} {\n"
"            return [uplevel 1 [list [namespace which my] $def]]\n"
"        } elseif {![string match -* [lindex $args 0]]} {\n"
"            return [uplevel 1 [list [namespace which my] $def {*}$args]]\n"
"        }\n"
"        next {*}$args\n"
"    }\n"
"    export -set -append -clear\n"
"    unexport unknown destroy\n"
"}\n"
"::oo::objdefine ::oo::define::superclass forward --default-operation my -set\n"
"::oo::objdefine ::oo::define::mixin forward --default-operation my -set\n"
"::oo::objdefine ::oo::objdefine::mixin forward --default-operation my -set\n";

/*
 * The body of the <cloned> method of oo::object.
 */

static const char *clonedBody =
"foreach p [info procs [info object namespace $originObject]::*] {"
"    set args [info args $p];"
"    set idx -1;"
"    foreach a $args {"
"        lset args [incr idx] "
"            [if {[info default $p $a d]} {list $a $d} {list $a}]"
"    };"
"    set b [info body $p];"
"    set p [namespace tail $p];"
"    proc $p $args $b;"
"};"
"foreach v [info vars [info object namespace $originObject]::*] {"
"    upvar 0 $v vOrigin;"
"    namespace upvar [namespace current] [namespace tail $v] vNew;"
"    if {[info exists vOrigin]} {"
"        if {[array exists vOrigin]} {"
"            array set vNew [array get vOrigin];"
"        } else {"
"            set vNew $vOrigin;"
"        }"
"    }"
"}";

/*
 * The actual definition of the variable holding the TclOO stub table.
 */

MODULE_SCOPE const TclOOStubs tclOOStubs;

................................................................................
InitFoundation(
    Tcl_Interp *interp)
{
    static Tcl_ThreadDataKey tsdKey;
    ThreadLocalData *tsdPtr =
	    Tcl_GetThreadData(&tsdKey, sizeof(ThreadLocalData));
    Foundation *fPtr = ckalloc(sizeof(Foundation));
    Tcl_Obj *namePtr, *argsPtr, *bodyPtr;
    Tcl_DString buffer;
    Command *cmdPtr;
    int i;

    /*
     * Initialize the structure that holds the OO system core. This is
     * attached to the interpreter via an assocData entry; not very efficient,
................................................................................
    for (i=0 ; objMethods[i].name ; i++) {
	TclOONewBasicMethod(interp, fPtr->objectCls, &objMethods[i]);
    }
    for (i=0 ; clsMethods[i].name ; i++) {
	TclOONewBasicMethod(interp, fPtr->classCls, &clsMethods[i]);
    }

    /*
     * Create the default <cloned> method implementation, used when 'oo::copy'
     * is called to finish the copying of one object to another.
     */

    TclNewLiteralStringObj(argsPtr, "originObject");
    Tcl_IncrRefCount(argsPtr);
    bodyPtr = Tcl_NewStringObj(clonedBody, -1);
    TclOONewProcMethod(interp, fPtr->objectCls, 0, fPtr->clonedName, argsPtr,
	    bodyPtr, NULL);
    TclDecrRefCount(argsPtr);

    /*
     * Finish setting up the class of classes by marking the 'new' method as
     * private; classes, unlike general objects, must have explicit names. We
     * also need to create the constructor for classes.
     */

    TclNewLiteralStringObj(namePtr, "new");
................................................................................
    /*
     * Now make the class of slots.
     */

    if (TclOODefineSlots(fPtr) != TCL_OK) {
	return TCL_ERROR;
    }





    return Tcl_EvalEx(interp, slotScript, -1, 0);
}

/*
 * ----------------------------------------------------------------------
 *
 * InitClassSystemRoots --
 *
................................................................................
    tracePtr->clientData = oPtr;
    tracePtr->flags = TCL_TRACE_RENAME|TCL_TRACE_DELETE;
    tracePtr->nextPtr = NULL;
    tracePtr->refCount = 1;

    oPtr->myCommand = TclNRCreateCommandInNs(interp, "my", oPtr->namespacePtr,
	    PrivateObjectCmd, PrivateNRObjectCmd, oPtr, MyDeleted);



    return oPtr;
}
 
/*
 * ----------------------------------------------------------------------
 *
 * SquelchCachedName --
................................................................................
	oPtr->cachedNameObj = NULL;
    }
}
 
/*
 * ----------------------------------------------------------------------
 *
 * MyDeleted --
 *
 *	This callback is triggered when the object's [my] command is deleted
 *	by any mechanism. It just marks the object as not having a [my]

 *	command, and so prevents cleanup of that when the object itself is
 *	deleted.
 *
 * ----------------------------------------------------------------------
 */

static void
MyDeleted(
    ClientData clientData)	/* Reference to the object whose [my] has been
				 * squelched. */
{
    register Object *oPtr = clientData;

    oPtr->myCommand = NULL;
}








 
/*
 * ----------------------------------------------------------------------
 *
 * ObjectRenamedTrace --
 *
 *	This callback is triggered when the object is deleted by any
................................................................................
	 * The namespace must have been deleted directly.  Delete the command
	 * as well.
	 */

	Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->command);
    }




    if (oPtr->myCommand) {
	Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->myCommand);
    }

    /*
     * Splice the object out of its context. After this, we must *not* call
     * methods on the object.
................................................................................
	return TclOOObjectCmdCore((Object *) object, interp, objc, objv,
		PRIVATE_METHOD, (Class *) startCls);
    default:
	return TclOOObjectCmdCore((Object *) object, interp, objc, objv, 0,
		(Class *) startCls);
    }
}





































 
/*
 * ----------------------------------------------------------------------
 *
 * TclOOObjectCmdCore, FinalizeObjectCall --
 *
 *	Main function for object invocations. Does call chain creation,






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			    Tcl_Obj *const *objv);
static int		PrivateObjectCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv);
static int		PrivateNRObjectCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv);
static int		MyClassObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv);
static int		MyClassNRObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv);
static void		MyClassDeleted(ClientData clientData);

/*
 * Methods in the oo::object and oo::class classes. First, we define a helper
 * macro that makes building the method type declaration structure a lot
 * easier. No point in making life harder than it has to be!
 *
 * Note that the core methods don't need clone or free proc callbacks.
................................................................................
"package ifneeded TclOO " TCLOO_PATCHLEVEL " {# Already present, OK?};"
"namespace eval ::oo { variable version " TCLOO_VERSION " };"
"namespace eval ::oo { variable patchlevel " TCLOO_PATCHLEVEL " };";
/* "tcl_findLibrary tcloo $oo::version $oo::version" */
/* " tcloo.tcl OO_LIBRARY oo::library;"; */

/*
 * The scripted part of the definitions of TclOO.
 */

#include "tclOOScript.h"
























































/*
 * The actual definition of the variable holding the TclOO stub table.
 */

MODULE_SCOPE const TclOOStubs tclOOStubs;

................................................................................
InitFoundation(
    Tcl_Interp *interp)
{
    static Tcl_ThreadDataKey tsdKey;
    ThreadLocalData *tsdPtr =
	    Tcl_GetThreadData(&tsdKey, sizeof(ThreadLocalData));
    Foundation *fPtr = ckalloc(sizeof(Foundation));
    Tcl_Obj *namePtr;
    Tcl_DString buffer;
    Command *cmdPtr;
    int i;

    /*
     * Initialize the structure that holds the OO system core. This is
     * attached to the interpreter via an assocData entry; not very efficient,
................................................................................
    for (i=0 ; objMethods[i].name ; i++) {
	TclOONewBasicMethod(interp, fPtr->objectCls, &objMethods[i]);
    }
    for (i=0 ; clsMethods[i].name ; i++) {
	TclOONewBasicMethod(interp, fPtr->classCls, &clsMethods[i]);
    }













    /*
     * Finish setting up the class of classes by marking the 'new' method as
     * private; classes, unlike general objects, must have explicit names. We
     * also need to create the constructor for classes.
     */

    TclNewLiteralStringObj(namePtr, "new");
................................................................................
    /*
     * Now make the class of slots.
     */

    if (TclOODefineSlots(fPtr) != TCL_OK) {
	return TCL_ERROR;
    }

    /*
     * Evaluate the remaining definitions, which are a compiled-in Tcl script.
     */

    return Tcl_EvalEx(interp, tclOOSetupScript, -1, 0);
}

/*
 * ----------------------------------------------------------------------
 *
 * InitClassSystemRoots --
 *
................................................................................
    tracePtr->clientData = oPtr;
    tracePtr->flags = TCL_TRACE_RENAME|TCL_TRACE_DELETE;
    tracePtr->nextPtr = NULL;
    tracePtr->refCount = 1;

    oPtr->myCommand = TclNRCreateCommandInNs(interp, "my", oPtr->namespacePtr,
	    PrivateObjectCmd, PrivateNRObjectCmd, oPtr, MyDeleted);
    oPtr->myclassCommand = TclNRCreateCommandInNs(interp, "myclass",
	    oPtr->namespacePtr, MyClassObjCmd, MyClassNRObjCmd, oPtr,
            MyClassDeleted);
    return oPtr;
}
 
/*
 * ----------------------------------------------------------------------
 *
 * SquelchCachedName --
................................................................................
	oPtr->cachedNameObj = NULL;
    }
}
 
/*
 * ----------------------------------------------------------------------
 *
 * MyDeleted, MyClassDeleted --
 *
 *	These callbacks are triggered when the object's [my] or [myclass]
 *	commands are deleted by any mechanism. They just mark the object as
 *	not having a [my] command or [myclass] command, and so prevent cleanup
 *	of those commands when the object itself is deleted.

 *
 * ----------------------------------------------------------------------
 */

static void
MyDeleted(
    ClientData clientData)	/* Reference to the object whose [my] has been
				 * squelched. */
{
    register Object *oPtr = clientData;

    oPtr->myCommand = NULL;
}

static void
MyClassDeleted(
    ClientData clientData)
{
    Object *oPtr = clientData;
    oPtr->myclassCommand = NULL;
}
 
/*
 * ----------------------------------------------------------------------
 *
 * ObjectRenamedTrace --
 *
 *	This callback is triggered when the object is deleted by any
................................................................................
	 * The namespace must have been deleted directly.  Delete the command
	 * as well.
	 */

	Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->command);
    }

    if (oPtr->myclassCommand) {
	Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->myclassCommand);
    }
    if (oPtr->myCommand) {
	Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->myCommand);
    }

    /*
     * Splice the object out of its context. After this, we must *not* call
     * methods on the object.
................................................................................
	return TclOOObjectCmdCore((Object *) object, interp, objc, objv,
		PRIVATE_METHOD, (Class *) startCls);
    default:
	return TclOOObjectCmdCore((Object *) object, interp, objc, objv, 0,
		(Class *) startCls);
    }
}
 
/*
 * ----------------------------------------------------------------------
 *
 * MyClassObjCmd, MyClassNRObjCmd --
 *
 *	Special trap door to allow an object to delegate simply to its class.
 *
 * ----------------------------------------------------------------------
 */

static int
MyClassObjCmd(
    ClientData clientData,
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const *objv)
{
    return Tcl_NRCallObjProc(interp, MyClassNRObjCmd, clientData, objc, objv);
}

static int
MyClassNRObjCmd(
    ClientData clientData,
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const *objv)
{
    Object *oPtr = clientData;

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "methodName ?arg ...?");
	return TCL_ERROR;
    }
    return TclOOObjectCmdCore(oPtr->selfCls->thisPtr, interp, objc, objv, 0,
	    NULL);
}
 
/*
 * ----------------------------------------------------------------------
 *
 * TclOOObjectCmdCore, FinalizeObjectCall --
 *
 *	Main function for object invocations. Does call chain creation,

Changes to generic/tclOOBasic.c.

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    ClientData clientData,
    Tcl_Interp *interp,
    Tcl_ObjectContext context,
    int objc,
    Tcl_Obj *const *objv)
{
    Object *oPtr = (Object *) Tcl_ObjectContextObject(context);
    Tcl_Obj **invoke;

    if (objc-1 > Tcl_ObjectContextSkippedArgs(context)) {
	Tcl_WrongNumArgs(interp, Tcl_ObjectContextSkippedArgs(context), objv,
		"?definitionScript?");
	return TCL_ERROR;
    } else if (objc == Tcl_ObjectContextSkippedArgs(context)) {
	return TCL_OK;
    }












    /*
     * Delegate to [oo::define] to do the work.
     */

    invoke = ckalloc(3 * sizeof(Tcl_Obj *));
    invoke[0] = oPtr->fPtr->defineName;
    invoke[1] = TclOOObjectName(interp, oPtr);
................................................................................
     * trouble.
     */

    Tcl_IncrRefCount(invoke[0]);
    Tcl_IncrRefCount(invoke[1]);
    Tcl_IncrRefCount(invoke[2]);
    TclNRAddCallback(interp, DecrRefsPostClassConstructor,
	    invoke, NULL, NULL, NULL);

    /*
     * Tricky point: do not want the extra reported level in the Tcl stack
     * trace, so use TCL_EVAL_NOERR.
     */

    return TclNREvalObjv(interp, 3, invoke, TCL_EVAL_NOERR, NULL);
................................................................................
static int
DecrRefsPostClassConstructor(
    ClientData data[],
    Tcl_Interp *interp,
    int result)
{
    Tcl_Obj **invoke = data[0];




    TclDecrRefCount(invoke[0]);
    TclDecrRefCount(invoke[1]);
    TclDecrRefCount(invoke[2]);








    ckfree(invoke);


    return result;


}
 
/*
 * ----------------------------------------------------------------------
 *
 * TclOO_Class_Create --
 *






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    ClientData clientData,
    Tcl_Interp *interp,
    Tcl_ObjectContext context,
    int objc,
    Tcl_Obj *const *objv)
{
    Object *oPtr = (Object *) Tcl_ObjectContextObject(context);
    Tcl_Obj **invoke, *nameObj;

    if (objc-1 > Tcl_ObjectContextSkippedArgs(context)) {
	Tcl_WrongNumArgs(interp, Tcl_ObjectContextSkippedArgs(context), objv,
		"?definitionScript?");
	return TCL_ERROR;
    } else if (objc == Tcl_ObjectContextSkippedArgs(context)) {
	return TCL_OK;
    }

    /*
     * Make the class definition delegate. This is special; it doesn't reenter
     * here (and the class definition delegate doesn't run any constructors).
     */

    nameObj = Tcl_NewStringObj(oPtr->namespacePtr->fullName, -1);
    Tcl_AppendToObj(nameObj, ":: oo ::delegate", -1);
    Tcl_NewObjectInstance(interp, (Tcl_Class) oPtr->fPtr->classCls,
	    TclGetString(nameObj), NULL, -1, NULL, -1);
    Tcl_DecrRefCount(nameObj);

    /*
     * Delegate to [oo::define] to do the work.
     */

    invoke = ckalloc(3 * sizeof(Tcl_Obj *));
    invoke[0] = oPtr->fPtr->defineName;
    invoke[1] = TclOOObjectName(interp, oPtr);
................................................................................
     * trouble.
     */

    Tcl_IncrRefCount(invoke[0]);
    Tcl_IncrRefCount(invoke[1]);
    Tcl_IncrRefCount(invoke[2]);
    TclNRAddCallback(interp, DecrRefsPostClassConstructor,
	    invoke, oPtr, NULL, NULL);

    /*
     * Tricky point: do not want the extra reported level in the Tcl stack
     * trace, so use TCL_EVAL_NOERR.
     */

    return TclNREvalObjv(interp, 3, invoke, TCL_EVAL_NOERR, NULL);
................................................................................
static int
DecrRefsPostClassConstructor(
    ClientData data[],
    Tcl_Interp *interp,
    int result)
{
    Tcl_Obj **invoke = data[0];
    Object *oPtr = data[1];
    Tcl_InterpState saved;
    int code;

    TclDecrRefCount(invoke[0]);
    TclDecrRefCount(invoke[1]);
    TclDecrRefCount(invoke[2]);
    invoke[0] = Tcl_NewStringObj("::oo::MixinClassDelegates", -1);
    invoke[1] = TclOOObjectName(interp, oPtr);
    Tcl_IncrRefCount(invoke[0]);
    Tcl_IncrRefCount(invoke[1]);
    saved = Tcl_SaveInterpState(interp, result);
    code = Tcl_EvalObjv(interp, 2, invoke, 0);
    TclDecrRefCount(invoke[0]);
    TclDecrRefCount(invoke[1]);
    ckfree(invoke);
    if (code != TCL_OK) {
	Tcl_DiscardInterpState(saved);
	return code;
    }
    return Tcl_RestoreInterpState(interp, saved);
}
 
/*
 * ----------------------------------------------------------------------
 *
 * TclOO_Class_Create --
 *

Changes to generic/tclOOInt.h.

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    Tcl_ObjectMapMethodNameProc *mapMethodNameProc;
				/* Function to allow remapping of method
				 * names. For itcl-ng. */
    VariableNameList variables;
    PrivateVariableList privateVariables;
				/* Configurations for the variable resolver
				 * used inside methods. */


} Object;

#define OBJECT_DELETED	1	/* Flag to say that an object has been
				 * destroyed. */
#define DESTRUCTOR_CALLED 2	/* Flag to say that the destructor has been
				 * called. */
#define CLASS_GONE	4	/* Obsolete. Indicates that the class of this






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    Tcl_ObjectMapMethodNameProc *mapMethodNameProc;
				/* Function to allow remapping of method
				 * names. For itcl-ng. */
    VariableNameList variables;
    PrivateVariableList privateVariables;
				/* Configurations for the variable resolver
				 * used inside methods. */
    Tcl_Command myclassCommand;	/* Reference to this object's class dispatcher
				 * command. */
} Object;

#define OBJECT_DELETED	1	/* Flag to say that an object has been
				 * destroyed. */
#define DESTRUCTOR_CALLED 2	/* Flag to say that the destructor has been
				 * called. */
#define CLASS_GONE	4	/* Obsolete. Indicates that the class of this

Added generic/tclOOScript.h.
































































































































































































































































































































































































































































































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/*
 * tclOOScript.h --
 *
 *	This file contains support scripts for TclOO. They are defined here so
 *	that the code can be definitely run even in safe interpreters; TclOO's
 *	core setup is safe.
 *
 * Copyright (c) 2012-2018 Donal K. Fellows
 * Copyright (c) 2013 Andreas Kupries
 * Copyright (c) 2017 Gerald Lester
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#ifndef TCL_OO_SCRIPT_H
#define TCL_OO_SCRIPT_H
 
/*
 * The scripted part of the definitions of TclOO.
 *
 * Compiled from generic/tclOOScript.tcl by tools/makeHeader.tcl, which
 * contains the commented version of everything; *this* file is automatically
 * generated.
 */

static const char *tclOOSetupScript =
/* !BEGIN!: Do not edit below this line. */
"::namespace eval ::oo {\n"
"\t::namespace path {}\n"
"\tnamespace eval Helpers {\n"
"\t\t::namespace path {}\n"
"\t\tproc callback {method args} {\n"
"\t\t\tlist [uplevel 1 {::namespace which my}] $method {*}$args\n"
"\t\t}\n"
"\t\tnamespace export callback\n"
"\t\tnamespace eval tmp {namespace import ::oo::Helpers::callback}\n"
"\t\tnamespace export -clear\n"
"\t\trename tmp::callback mymethod\n"
"\t\tnamespace delete tmp\n"
"\t\tproc classvariable {name args} {\n"
"\t\t\tset ns [info object namespace [uplevel 1 {self class}]]\n"
"\t\t\tforeach v [list $name {*}$args] {\n"
"\t\t\t\tif {[string match *(*) $v]} {\n"
"\t\t\t\t\tset reason \"can\'t create a scalar variable that looks like an array element\"\n"
"\t\t\t\t\treturn -code error -errorcode {TCL UPVAR LOCAL_ELEMENT} \\\n"
"\t\t\t\t\t\t[format {bad variable name \"%s\": %s} $v $reason]\n"
"\t\t\t\t}\n"
"\t\t\t\tif {[string match *::* $v]} {\n"
"\t\t\t\t\tset reason \"can\'t create a local variable with a namespace separator in it\"\n"
"\t\t\t\t\treturn -code error -errorcode {TCL UPVAR INVERTED} \\\n"
"\t\t\t\t\t\t[format {bad variable name \"%s\": %s} $v $reason]\n"
"\t\t\t\t}\n"
"\t\t\t\tlappend vs $v $v\n"
"\t\t\t}\n"
"\t\t\ttailcall namespace upvar $ns {*}$vs\n"
"\t\t}\n"
"\t\tproc link {args} {\n"
"\t\t\tset ns [uplevel 1 {::namespace current}]\n"
"\t\t\tforeach link $args {\n"
"\t\t\t\tif {[llength $link] == 2} {\n"
"\t\t\t\t\tlassign $link src dst\n"
"\t\t\t\t} elseif {[llength $link] == 1} {\n"
"\t\t\t\t\tlassign $link src\n"
"\t\t\t\t\tset dst $src\n"
"\t\t\t\t} else {\n"
"\t\t\t\t\treturn -code error -errorcode {TCLOO CMDLINK FORMAT} \\\n"
"\t\t\t\t\t\t\"bad link description; must only have one or two elements\"\n"
"\t\t\t\t}\n"
"\t\t\t\tif {![string match ::* $src]} {\n"
"\t\t\t\t\tset src [string cat $ns :: $src]\n"
"\t\t\t\t}\n"
"\t\t\t\tinterp alias {} $src {} ${ns}::my $dst\n"
"\t\t\t\ttrace add command ${ns}::my delete [list \\\n"
"\t\t\t\t\t::oo::UnlinkLinkedCommand $src]\n"
"\t\t\t}\n"
"\t\t\treturn\n"
"\t\t}\n"
"\t}\n"
"\tproc UnlinkLinkedCommand {cmd args} {\n"
"\t\tif {[namespace which $cmd] ne {}} {\n"
"\t\t\trename $cmd {}\n"
"\t\t}\n"
"\t}\n"
"\tproc DelegateName {class} {\n"
"\t\tstring cat [info object namespace $class] {:: oo ::delegate}\n"
"\t}\n"
"\tproc MixinClassDelegates {class} {\n"
"\t\tif {![info object isa class $class]} {\n"
"\t\t\treturn\n"
"\t\t}\n"
"\t\tset delegate [DelegateName $class]\n"
"\t\tif {![info object isa class $delegate]} {\n"
"\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 superclass -append $d\n"
"\t\t}\n"
"\t\tobjdefine $class 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} then {\n"
"\t\t\tcopy $originDelegate $targetDelegate\n"
"\t\t\tobjdefine $targetObject mixin -set \\\n"
"\t\t\t\t{*}[lmap c [info object mixin $targetObject] {\n"
"\t\t\t\t\tif {$c eq $originDelegate} {set targetDelegate} {set c}\n"
"\t\t\t\t}]\n"
"\t\t}\n"
"\t}\n"
"\tproc define::classmethod {name {args {}} {body {}}} {\n"
"\t\t::set argc [::llength [::info level 0]]\n"
"\t\t::if {$argc == 3} {\n"
"\t\t\t::return -code error -errorcode {TCL WRONGARGS} [::format \\\n"
"\t\t\t\t{wrong # args: should be \"%s name \?args body\?\"} \\\n"
"\t\t\t\t[::lindex [::info level 0] 0]]\n"
"\t\t}\n"
"\t\t::set cls [::uplevel 1 self]\n"
"\t\t::if {$argc == 4} {\n"
"\t\t\t::oo::define [::oo::DelegateName $cls] method $name $args $body\n"
"\t\t}\n"
"\t\t::tailcall forward $name myclass $name\n"
"\t}\n"
"\tproc define::initialise {body} {\n"
"\t\t::set clsns [::info object namespace [::uplevel 1 self]]\n"
"\t\t::tailcall apply [::list {} $body $clsns]\n"
"\t}\n"
"\tnamespace eval define {\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 -set args {tailcall my Set $args}\n"
"\t\tmethod -append args {\n"
"\t\t\tset current [uplevel 1 [list [namespace which my] Get]]\n"
"\t\t\ttailcall my Set [list {*}$current {*}$args]\n"
"\t\t}\n"
"\t\tmethod -clear {} {tailcall my Set {}}\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\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\tlset args [incr idx] [list $a]\n"
"\t\t\t\t}\n"
"\t\t\t}\n"
"\t\t\tset b [info body $p]\n"
"\t\t\tset p [namespace tail $p]\n"
"\t\t\tproc $p $args $b\n"
"\t\t}\n"
"\t\tforeach v [info vars [info object namespace $originObject]::*] {\n"
"\t\t\tupvar 0 $v vOrigin\n"
"\t\t\tnamespace upvar [namespace current] [namespace tail $v] vNew\n"
"\t\t\tif {[info exists vOrigin]} {\n"
"\t\t\t\tif {[array exists vOrigin]} {\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\tmethod new args {\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}\n"
"\tclass create abstract {\n"
"\t\tsuperclass class\n"
"\t\tunexport create createWithNamespace new\n"
"\t}\n"
"}\n"
/* !END!: Do not edit above this line. */
;
 
#endif /* TCL_OO_SCRIPT_H */

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

Added generic/tclOOScript.tcl.












































































































































































































































































































































































































































































































































































































































































































































































































































































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# tclOOScript.h --
#
# 	This file contains support scripts for TclOO. They are defined here so
# 	that the code can be definitely run even in safe interpreters; TclOO's
# 	core setup is safe.
#
# Copyright (c) 2012-2018 Donal K. Fellows
# Copyright (c) 2013 Andreas Kupries
# Copyright (c) 2017 Gerald Lester
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
::namespace eval ::oo {
    ::namespace path {}

    #
    # Commands that are made available to objects by default.
    #
    namespace eval Helpers {
	::namespace path {}

	# ------------------------------------------------------------------
	#
	# callback, mymethod --
	#
	#	Create a script prefix that calls a method on the current
	#	object. Same operation, two names.
	#
	# ------------------------------------------------------------------

	proc callback {method args} {
	    list [uplevel 1 {::namespace which my}] $method {*}$args
	}

	# Make the [callback] command appear as [mymethod] too.
	namespace export callback
	namespace eval tmp {namespace import ::oo::Helpers::callback}
	namespace export -clear
	rename tmp::callback mymethod
	namespace delete tmp

	# ------------------------------------------------------------------
	#
	# classvariable --
	#
	#	Link to a variable in the class of the current object.
	#
	# ------------------------------------------------------------------

	proc classvariable {name args} {
	    # Get a reference to the class's namespace
	    set ns [info object namespace [uplevel 1 {self class}]]
	    # Double up the list of variable names
	    foreach v [list $name {*}$args] {
		if {[string match *(*) $v]} {
		    set reason "can't create a scalar variable that looks like an array element"
		    return -code error -errorcode {TCL UPVAR LOCAL_ELEMENT} \
			[format {bad variable name "%s": %s} $v $reason]
		}
		if {[string match *::* $v]} {
		    set reason "can't create a local variable with a namespace separator in it"
		    return -code error -errorcode {TCL UPVAR INVERTED} \
			[format {bad variable name "%s": %s} $v $reason]
		}
		lappend vs $v $v
	    }
	    # Lastly, link the caller's local variables to the class's variables
	    tailcall namespace upvar $ns {*}$vs
	}

	# ------------------------------------------------------------------
	#
	# link --
	#
	#	Make a command that invokes a method on the current object.
	#	The name of the command and the name of the method match by
	#	default.
	#
	# ------------------------------------------------------------------

	proc link {args} {
	    set ns [uplevel 1 {::namespace current}]
	    foreach link $args {
		if {[llength $link] == 2} {
		    lassign $link src dst
		} elseif {[llength $link] == 1} {
		    lassign $link src
		    set dst $src
		} else {
		    return -code error -errorcode {TCLOO CMDLINK FORMAT} \
			"bad link description; must only have one or two elements"
		}
		if {![string match ::* $src]} {
		    set src [string cat $ns :: $src]
		}
		interp alias {} $src {} ${ns}::my $dst
		trace add command ${ns}::my delete [list \
		    ::oo::UnlinkLinkedCommand $src]
	    }
	    return
	}
    }

    # ----------------------------------------------------------------------
    #
    # UnlinkLinkedCommand --
    #
    #	Callback used to remove linked command when the underlying mechanism
    #	that supports it is deleted.
    #
    # ----------------------------------------------------------------------

    proc UnlinkLinkedCommand {cmd args} {
	if {[namespace which $cmd] ne {}} {
	    rename $cmd {}
	}
    }

    # ----------------------------------------------------------------------
    #
    # DelegateName --
    #
    #	Utility that gets the name of the class delegate for a class. It's
    #	trivial, but makes working with them much easier as delegate names are
    #	intentionally hard to create by accident.
    #
    # ----------------------------------------------------------------------

    proc DelegateName {class} {
	string cat [info object namespace $class] {:: oo ::delegate}
    }

    # ----------------------------------------------------------------------
    #
    # MixinClassDelegates --
    #
    #	Support code called *after* [oo::define] inside the constructor of a
    #	class that patches in the appropriate class delegates.
    #
    # ----------------------------------------------------------------------

    proc MixinClassDelegates {class} {
	if {![info object isa class $class]} {
	    return
	}
	set delegate [DelegateName $class]
	if {![info object isa class $delegate]} {
	    return
	}
	foreach c [info class superclass $class] {
	    set d [DelegateName $c]
	    if {![info object isa class $d]} {
		continue
	    }
	    define $delegate superclass -append $d
	}
	objdefine $class mixin -append $delegate
    }

    # ----------------------------------------------------------------------
    #
    # UpdateClassDelegatesAfterClone --
    #
    #	Support code that is like [MixinClassDelegates] except for when a
    #	class is cloned.
    #
    # ----------------------------------------------------------------------

    proc UpdateClassDelegatesAfterClone {originObject targetObject} {
	# Rebuild the class inheritance delegation class
	set originDelegate [DelegateName $originObject]
	set targetDelegate [DelegateName $targetObject]
	if {
	    [info object isa class $originDelegate]
	    && ![info object isa class $targetDelegate]
	} then {
	    copy $originDelegate $targetDelegate
	    objdefine $targetObject mixin -set \
		{*}[lmap c [info object mixin $targetObject] {
		    if {$c eq $originDelegate} {set targetDelegate} {set c}
		}]
	}
    }

    # ----------------------------------------------------------------------
    #
    # oo::define::classmethod --
    #
    #	Defines a class method. See define(n) for details.
    #
    # Note that the ::oo::define namespace is semi-public and a bit weird
    # anyway, so we don't regard the namespace path as being under control:
    # fully qualified names are used for everything.
    #
    # ----------------------------------------------------------------------

    proc define::classmethod {name {args {}} {body {}}} {
        # Create the method on the class if the caller gave arguments and body
        ::set argc [::llength [::info level 0]]
        ::if {$argc == 3} {
            ::return -code error -errorcode {TCL WRONGARGS} [::format \
		{wrong # args: should be "%s name ?args body?"} \
                [::lindex [::info level 0] 0]]
        }
        ::set cls [::uplevel 1 self]
        ::if {$argc == 4} {
            ::oo::define [::oo::DelegateName $cls] method $name $args $body
        }
        # Make the connection by forwarding
        ::tailcall forward $name myclass $name
    }

    # ----------------------------------------------------------------------
    #
    # oo::define::initialise, oo::define::initialize --
    #
    #	Do specific initialisation for a class. See define(n) for details.
    #
    # Note that the ::oo::define namespace is semi-public and a bit weird
    # anyway, so we don't regard the namespace path as being under control:
    # fully qualified names are used for everything.
    #
    # ----------------------------------------------------------------------

    proc define::initialise {body} {
        ::set clsns [::info object namespace [::uplevel 1 self]]
        ::tailcall apply [::list {} $body $clsns]
    }

    # Make the [initialise] definition appear as [initialize] too
    namespace eval define {
	::namespace export initialise
	::namespace eval tmp {::namespace import ::oo::define::initialise}
	::namespace export -clear
	::rename tmp::initialise initialize
	::namespace delete tmp
    }

    # ----------------------------------------------------------------------
    #
    # Slot --
    #
    #	The class of slot operations, which are basically lists at the low
    #	level of TclOO; this provides a more consistent interface to them.
    #
    # ----------------------------------------------------------------------

    define Slot {
	# ------------------------------------------------------------------
	#
	# Slot Get --
	#
	#	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 -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 {tailcall my Set $args}
	method -append args {
	    set current [uplevel 1 [list [namespace which my] Get]]
	    tailcall my Set [list {*}$current {*}$args]
	}
	method -clear {} {tailcall my Set {}}

	# 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
	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

    # ----------------------------------------------------------------------
    #
    # oo::object <cloned> --
    #
    #	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]
		} else {
		    lset args [incr idx] [list $a]
		}
	    }
	    set b [info body $p]
	    set p [namespace tail $p]
	    proc $p $args $b
	}
	# Copy over the variables from the original namespace
	foreach v [info vars [info object namespace $originObject]::*] {
	    upvar 0 $v vOrigin
	    namespace upvar [namespace current] [namespace tail $v] vNew
	    if {[info exists vOrigin]} {
		if {[array exists vOrigin]} {
		    array set vNew [array get vOrigin]
		} else {
		    set vNew $vOrigin
		}
	    }
	}
	# General commands, sub-namespaces and advancd variable config (traces,
	# etc) are *not* copied over. Classes that want that should do it
	# themselves.
    }

    # ----------------------------------------------------------------------
    #
    # 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]
    }

    # ----------------------------------------------------------------------
    #
    # oo::singleton --
    #
    #	A metaclass that is used to make classes that only permit one instance
    #	of them to exist. See singleton(n).
    #
    # ----------------------------------------------------------------------

    class create singleton {
	superclass class
	variable object
	unexport create createWithNamespace
	method new args {
	    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::abstract --
    #
    #	A metaclass that is used to make classes that can't be directly
    #	instantiated. See abstract(n).
    #
    # ----------------------------------------------------------------------

    class create abstract {
	superclass class
	unexport create createWithNamespace new
    }
}
 
# Local Variables:
# mode: tcl
# c-basic-offset: 4
# fill-column: 78
# End:

Changes to tests/execute.test.

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testConstraint testobj [expr {
    [llength [info commands testobj]]
    && [llength [info commands testdoubleobj]]
    && [llength [info commands teststringobj]]
}]

testConstraint longIs32bit [expr {int(0x80000000) < 0}]
testConstraint testexprlongobj [llength [info commands testexprlongobj]]
 
# Tests for the omnibus TclExecuteByteCode function:

# INST_DONE not tested
# INST_PUSH1 not tested
# INST_PUSH4 not tested
................................................................................
} 1
# wide ints have more bits of precision than doubles, but we convert anyway
test execute-7.7 {Wide int handling in INST_EQ and [incr]} {
    set x [expr {wide(1)<<62}]
    set y [expr {$x+1}]
    expr {double($x) == double($y)}
} 1
test execute-7.8 {Wide int conversions can change sign} longIs32bit {
    set x 0x80000000
    expr {int($x) < wide($x)}
} 1
test execute-7.9 {Wide int handling in INST_MOD} {
    expr {(wide(1)<<60) % ((wide(47)<<45)-1)}
} 316659348800185
test execute-7.10 {Wide int handling in INST_MOD} {
    expr {((wide(1)<<60)-1) % 0x400000000}
} 17179869183
................................................................................
} 1
test execute-7.31 {Wide int handling in abs()} {
    set x 0xa23456871234568
    incr x
    set y 0x123456871234568
    concat [expr {abs($x)}] [expr {abs($y)}]
} {730503879441204585 81985533099853160}
test execute-7.32 {Wide int handling} longIs32bit {
    expr {int(1024 * 1024 * 1024 * 1024)}
} 0
test execute-7.33 {Wide int handling} longIs32bit {
    expr {int(0x1 * 1024 * 1024 * 1024 * 1024)}
} 0
test execute-7.34 {Wide int handling} {
    expr {wide(0x1) * 1024 * 1024 * 1024 * 1024}
} 1099511627776

test execute-8.1 {Stack protection} -setup {
    # If [Bug #804681] has not been properly taken care of, this should
    # segfault






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testConstraint testobj [expr {
    [llength [info commands testobj]]
    && [llength [info commands testdoubleobj]]
    && [llength [info commands teststringobj]]
}]

testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]
testConstraint testexprlongobj [llength [info commands testexprlongobj]]
 
# Tests for the omnibus TclExecuteByteCode function:

# INST_DONE not tested
# INST_PUSH1 not tested
# INST_PUSH4 not tested
................................................................................
} 1
# wide ints have more bits of precision than doubles, but we convert anyway
test execute-7.7 {Wide int handling in INST_EQ and [incr]} {
    set x [expr {wide(1)<<62}]
    set y [expr {$x+1}]
    expr {double($x) == double($y)}
} 1
test execute-7.8 {Wide int conversions can change sign} {
    set x 0x8000000000000000
    expr {wide($x) < 0}
} 1
test execute-7.9 {Wide int handling in INST_MOD} {
    expr {(wide(1)<<60) % ((wide(47)<<45)-1)}
} 316659348800185
test execute-7.10 {Wide int handling in INST_MOD} {
    expr {((wide(1)<<60)-1) % 0x400000000}
} 17179869183
................................................................................
} 1
test execute-7.31 {Wide int handling in abs()} {
    set x 0xa23456871234568
    incr x
    set y 0x123456871234568
    concat [expr {abs($x)}] [expr {abs($y)}]
} {730503879441204585 81985533099853160}
test execute-7.32 {Wide int handling} {
    expr {int(1024 * 1024 * 1024 * 1024)}
} 1099511627776
test execute-7.33 {Wide int handling} {
    expr {int(0x1 * 1024 * 1024 * 1024 * 1024)}
} 1099511627776
test execute-7.34 {Wide int handling} {
    expr {wide(0x1) * 1024 * 1024 * 1024 * 1024}
} 1099511627776

test execute-8.1 {Stack protection} -setup {
    # If [Bug #804681] has not been properly taken care of, this should
    # segfault

Changes to tests/expr-old.test.

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::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

testConstraint testexprlong   [llength [info commands testexprlong]]
testConstraint testexprdouble [llength [info commands testexprdouble]]
testConstraint testexprstring [llength [info commands testexprstring]]
testConstraint longIs32bit    [expr {int(0x80000000) < 0}]


# Big test for correct ordering of data in [expr]

proc testIEEE {} {
    variable ieeeValues
    binary scan [binary format dd -1.0 1.0] c* c
    switch -exact -- $c {
................................................................................
	list [catch {testexprlong 0x100000000} result] $result
    } \
    -result {1 {integer value too large to represent*}}
test expr-old-37.8 {Tcl_ExprLong handles overflows} testexprlong {
    testexprlong -0x80000000
} {This is a result: -2147483648}
test expr-old-37.9 {Tcl_ExprLong handles overflows} {testexprlong longIs32bit} {
    testexprlong -0xffffffff
} {This is a result: 1}
test expr-old-37.10 {Tcl_ExprLong handles overflows} \
    -constraints {testexprlong longIs32bit} \
    -match glob \
    -body {
	list [catch {testexprlong -0x100000000} result] $result
    } \
    -result {1 {integer value too large to represent*}}
................................................................................
    -body {
	list [catch {testexprlong 4294967296.} result] $result
    } \
    -result {1 {integer value too large to represent*}}
test expr-old-37.14 {Tcl_ExprLong handles overflows} testexprlong {
    testexprlong -2147483648.
} {This is a result: -2147483648}
test expr-old-37.15 {Tcl_ExprLong handles overflows} {testexprlong longIs32bit} {
    testexprlong -4294967295.
} {This is a result: 1}




test expr-old-37.16 {Tcl_ExprLong handles overflows} \
    -constraints {testexprlong longIs32bit} \
    -match glob \
    -body {
	list [catch {testexprlong 4294967296.} result] $result
    } \
    -result {1 {integer value too large to represent*}}






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::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

testConstraint testexprlong   [llength [info commands testexprlong]]
testConstraint testexprdouble [llength [info commands testexprdouble]]
testConstraint testexprstring [llength [info commands testexprstring]]
testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]
testConstraint longIs64bit [expr {$tcl_platform(wordSize) == 8}]

# Big test for correct ordering of data in [expr]

proc testIEEE {} {
    variable ieeeValues
    binary scan [binary format dd -1.0 1.0] c* c
    switch -exact -- $c {
................................................................................
	list [catch {testexprlong 0x100000000} result] $result
    } \
    -result {1 {integer value too large to represent*}}
test expr-old-37.8 {Tcl_ExprLong handles overflows} testexprlong {
    testexprlong -0x80000000
} {This is a result: -2147483648}
test expr-old-37.9 {Tcl_ExprLong handles overflows} {testexprlong longIs32bit} {
    testexprlong -0x7fffffff
} {This is a result: -2147483647}
test expr-old-37.10 {Tcl_ExprLong handles overflows} \
    -constraints {testexprlong longIs32bit} \
    -match glob \
    -body {
	list [catch {testexprlong -0x100000000} result] $result
    } \
    -result {1 {integer value too large to represent*}}
................................................................................
    -body {
	list [catch {testexprlong 4294967296.} result] $result
    } \
    -result {1 {integer value too large to represent*}}
test expr-old-37.14 {Tcl_ExprLong handles overflows} testexprlong {
    testexprlong -2147483648.
} {This is a result: -2147483648}
test expr-old-37.15 {Tcl_ExprLong handles overflows} \
    -constraints {testexprlong longIs32bit} \
    -match glob \
    -body {
	list [catch {testexprlong -2147483649.} result] $result
    } \
    -result {1 {integer value too large to represent*}}
test expr-old-37.16 {Tcl_ExprLong handles overflows} \
    -constraints {testexprlong longIs32bit} \
    -match glob \
    -body {
	list [catch {testexprlong 4294967296.} result] $result
    } \
    -result {1 {integer value too large to represent*}}

Changes to tests/expr.test.

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catch [list package require -exact Tcltest [info patchlevel]]

# Determine if "long int" type is a 32 bit number and if the wide
# type is a 64 bit number on this machine.

testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]
testConstraint longIs64bit [expr {$tcl_platform(wordSize) == 8}]
testConstraint wideIs64bit \
	[expr {(wide(0x80000000) > 0) && (wide(0x8000000000000000) < 0)}]

# Big test for correct ordering of data in [expr]

proc testIEEE {} {
    variable ieeeValues
    binary scan [binary format dd -1.0 1.0] c* c
    switch -exact -- $c {






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catch [list package require -exact Tcltest [info patchlevel]]

# Determine if "long int" type is a 32 bit number and if the wide
# type is a 64 bit number on this machine.

testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]
testConstraint longIs64bit [expr {$tcl_platform(wordSize) == 8}]
testConstraint wideIs64bit [expr {wide(0x8000000000000000) < 0}]


# Big test for correct ordering of data in [expr]

proc testIEEE {} {
    variable ieeeValues
    binary scan [binary format dd -1.0 1.0] c* c
    switch -exact -- $c {

Changes to tests/format.test.

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    package require tcltest 2
    namespace import -force ::tcltest::*
}

# %u output depends on word length, so this test is not portable.
testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]
testConstraint longIs64bit [expr {$tcl_platform(wordSize) == 8}]
testConstraint wideIs64bit \
	[expr {(wide(0x80000000) > 0) && (wide(0x8000000000000000) < 0)}]
testConstraint pointerIs64bit [expr {$tcl_platform(pointerSize) >= 8}]
 
test format-1.1 {integer formatting} {
    format "%*d %d %d %d" 6 34 16923 -12 -1
} {    34 16923 -12 -1}
test format-1.2 {integer formatting} {
    format "%4d %4d %4d %4d %d %#x %#X" 6 34 16923 -12 -1 14 12
................................................................................
for {set i 290} {$i < 400} {incr i} {
    test format-16.[expr $i -289] {testing MAX_FLOAT_SIZE} {
        format {%s} $b
    } $b
    append b "x"
}

test format-17.1 {testing %d with wide} {wideIs64bit longIs32bit} {
    format %d 7810179016327718216
} 1819043144
test format-17.2 {testing %ld with wide} {wideIs64bit} {
    format %ld 7810179016327718216
} 7810179016327718216
test format-17.3 {testing %ld with non-wide} {wideIs64bit} {
    format %ld 42
................................................................................
    lappend result [expr {$a == $b}]
    set b 0xaaaa
    append b aaaa
    lappend result [expr {$a == $b}]
    format %08x $b
    lappend result [expr {$a == $b}]
} {1 1 1 1}
test format-18.2 {do not demote existing numeric values} {longIs32bit} {
    set a [expr {0xaaaaaaaaaa + 1}]
    set b 0xaaaaaaaaab
    list [format %08x $a] [expr {$a == $b}]
} {aaaaaaab 1}

test format-19.1 {regression test - tcl-core message by Brian Griffin on 26 0ctober 2004} -body {
    set x 0x8fedc654






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    package require tcltest 2
    namespace import -force ::tcltest::*
}

# %u output depends on word length, so this test is not portable.
testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]
testConstraint longIs64bit [expr {$tcl_platform(wordSize) == 8}]
testConstraint wideIs64bit [expr {wide(0x8000000000000000) < 0}]

testConstraint pointerIs64bit [expr {$tcl_platform(pointerSize) >= 8}]
 
test format-1.1 {integer formatting} {
    format "%*d %d %d %d" 6 34 16923 -12 -1
} {    34 16923 -12 -1}
test format-1.2 {integer formatting} {
    format "%4d %4d %4d %4d %d %#x %#X" 6 34 16923 -12 -1 14 12
................................................................................
for {set i 290} {$i < 400} {incr i} {
    test format-16.[expr $i -289] {testing MAX_FLOAT_SIZE} {
        format {%s} $b
    } $b
    append b "x"
}

test format-17.1 {testing %d with wide} {longIs32bit wideIs64bit} {
    format %d 7810179016327718216
} 1819043144
test format-17.2 {testing %ld with wide} {wideIs64bit} {
    format %ld 7810179016327718216
} 7810179016327718216
test format-17.3 {testing %ld with non-wide} {wideIs64bit} {
    format %ld 42
................................................................................
    lappend result [expr {$a == $b}]
    set b 0xaaaa
    append b aaaa
    lappend result [expr {$a == $b}]
    format %08x $b
    lappend result [expr {$a == $b}]
} {1 1 1 1}
test format-18.2 {do not demote existing numeric values} {longIs32bit wideIs64bit} {
    set a [expr {0xaaaaaaaaaa + 1}]
    set b 0xaaaaaaaaab
    list [format %08x $a] [expr {$a == $b}]
} {aaaaaaab 1}

test format-19.1 {regression test - tcl-core message by Brian Griffin on 26 0ctober 2004} -body {
    set x 0x8fedc654

Changes to tests/obj.test.

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    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

testConstraint testobj [llength [info commands testobj]]
testConstraint longIs32bit	[expr {int(0x80000000) < 0}]

test obj-1.1 {Tcl_AppendAllObjTypes, and InitTypeTable, Tcl_RegisterObjType} testobj {
    set r 1
    foreach {t} {
	bytearray
	bytecode
	cmdName






|







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    namespace import -force ::tcltest::*
}

::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

testConstraint testobj [llength [info commands testobj]]
testConstraint longIs32bit [expr {$tcl_platform(wordSize) == 4}]

test obj-1.1 {Tcl_AppendAllObjTypes, and InitTypeTable, Tcl_RegisterObjType} testobj {
    set r 1
    foreach {t} {
	bytearray
	bytecode
	cmdName

Changes to tests/oo.test.

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		lappend x [info class $cmd ::oo::$initial]
	    }
	}
	foreach initial {object class Slot} {
	    lappend x [info object class ::oo::$initial]
	}
	return $x
    }] {lsort $x}
} -cleanup {
    interp delete $fresh
} -result {{} {::oo::Slot ::oo::class ::oo::object} {::oo::define::filter ::oo::define::mixin ::oo::define::superclass ::oo::define::variable ::oo::objdefine::filter ::oo::objdefine::mixin ::oo::objdefine::variable} {::oo::Slot ::oo::class} {} {} {} {} {} {} ::oo::object ::oo::object ::oo::class ::oo::class ::oo::class}

test oo-2.1 {basic test of OO functionality: constructor} -setup {
    # This is a bit complex because it needs to run in a sub-interp as
    # we're modifying the root object class's constructor
    interp create subinterp
    subinterp eval {
	package require TclOO
................................................................................
	unexport foo
    }
    lappend result {*}[lmap s {public unexported private} {
	info class methods cls -scope $s}]
} -cleanup {
    cls destroy
} -result {{} {} foo {} foo {}}
 





































































cleanupTests
return

# Local Variables:
# mode: tcl
# End:






|


|







 







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		lappend x [info class $cmd ::oo::$initial]
	    }
	}
	foreach initial {object class Slot} {
	    lappend x [info object class ::oo::$initial]
	}
	return $x
    }] {lsort [lmap y $x {if {[string match *::delegate $y]} continue; set y}]}
} -cleanup {
    interp delete $fresh
} -result {{} {::oo::Slot ::oo::abstract ::oo::class ::oo::object ::oo::singleton} {::oo::define::filter ::oo::define::mixin ::oo::define::superclass ::oo::define::variable ::oo::objdefine::filter ::oo::objdefine::mixin ::oo::objdefine::variable} {::oo::Slot ::oo::class} {::oo::abstract ::oo::singleton} {} {} {} {} {} ::oo::object ::oo::object ::oo::class ::oo::class ::oo::class}

test oo-2.1 {basic test of OO functionality: constructor} -setup {
    # This is a bit complex because it needs to run in a sub-interp as
    # we're modifying the root object class's constructor
    interp create subinterp
    subinterp eval {
	package require TclOO
................................................................................
	unexport foo
    }
    lappend result {*}[lmap s {public unexported private} {
	info class methods cls -scope $s}]
} -cleanup {
    cls destroy
} -result {{} {} foo {} foo {}}

test oo-41.1 {TIP 478: myclass command, including class morphing} -setup {
    oo::class create parent
    set result {}
} -body {
    oo::class create cls1 {
	superclass parent
	self method count {} {
	    my variable c
	    incr c
	}
	method act {} {
	    myclass count
	}
    }
    cls1 create x
    lappend result [x act] [x act]
    cls1 create y
    lappend result [y act] [y act] [x act]
    oo::class create cls2 {
	superclass cls1
	self method count {} {
	    my variable d
	    expr {1.0 * [incr d]}
	}
    }
    oo::objdefine x {class cls2}
    lappend result [x act] [y act] [x act] [y act]
} -cleanup {
    parent destroy
} -result {1 2 3 4 5 1.0 6 2.0 7}
test oo-41.2 {TIP 478: myclass command cleanup} -setup {
    oo::class create parent
    set result {}
} -body {
    oo::class create cls1 {
	superclass parent
	self method hi {} {
	    return "this is [self]"
	}
	method hi {} {
	    return "this is [self]"
	}
    }
    cls1 create x
    rename [info object namespace x]::my foo
    rename [info object namespace x]::myclass bar
    lappend result [cls1 hi] [x hi] [foo hi] [bar hi]
    x destroy
    lappend result [catch {foo hi}] [catch {bar hi}]
} -cleanup {
    parent destroy
} -result {{this is ::cls1} {this is ::x} {this is ::x} {this is ::cls1} 1 1}
test oo-41.3 {TIP 478: myclass command calls unexported methods, via forward} -setup {
    oo::class create parent
    set result {}
} -body {
    oo::class create cls1 {
	superclass parent
	self method Hi {} {
	    return "this is [self]"
	}
	forward poke myclass Hi
    }
    cls1 create x
    lappend result [catch {cls1 Hi}] [x poke]
} -cleanup {
    parent destroy
} -result {1 {this is ::cls1}}
 
cleanupTests
return

# Local Variables:
# mode: tcl
# End:

Added tests/ooUtil.test.






































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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# This file contains a collection of tests for functionality originally
# sourced from the ooutil package in Tcllib. Sourcing this file into Tcl runs
# the tests and generates output for errors. No output means no errors were
# found.
#
# Copyright (c) 2014-2016 Andreas Kupries
# Copyright (c) 2018 Donal K. Fellows
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.

package require TclOO 1.0.3
package require tcltest 2
if {"::tcltest" in [namespace children]} {
    namespace import -force ::tcltest::*
}
 
test ooUtil-1.1 {TIP 478: classmethod} -setup {
    oo::class create parent
} -body {
    oo::class create ActiveRecord {
	superclass parent
        classmethod find args {
	    return "[self] called with arguments: $args"
	}
    }
    oo::class create Table {
        superclass ActiveRecord
    }
    Table find foo bar
} -cleanup {
    parent destroy
} -result {::Table called with arguments: foo bar}
test ooUtil-1.2 {TIP 478: classmethod in namespace} -setup {
    namespace eval ::testns {}
} -body {
    namespace eval ::testns {
	oo::class create ActiveRecord {
	    classmethod find args {
		return "[self] called with arguments: $args"
	    }
	}
	oo::class create Table {
	    superclass ActiveRecord
	}
    }
    testns::Table find foo bar
} -cleanup {
    namespace delete ::testns
} -result {::testns::Table called with arguments: foo bar}
test ooUtil-1.3 {TIP 478: classmethod must not interfere with constructor signatures} -setup {
    oo::class create parent
} -body {
    oo::class create TestClass {
        superclass oo::class parent
        self method create {name ignore body} {
            next $name $body
        }
    }
    TestClass create okay {} {}
} -cleanup {
    parent destroy
} -result {::okay}
test ooUtil-1.4 {TIP 478: classmethod with several inheritance levels} -setup {
    oo::class create parent
} -body {
    oo::class create ActiveRecord {
	superclass parent
        classmethod find args {
	    return "[self] called with arguments: $args"
	}
    }
    oo::class create Table {
        superclass ActiveRecord
    }
    oo::class create SubTable {
        superclass Table
    }
    SubTable find foo bar
} -cleanup {
    parent destroy
} -result {::SubTable called with arguments: foo bar}
test ooUtil-1.5 {TIP 478: classmethod and instances} -setup {
    oo::class create parent
} -body {
    oo::class create ActiveRecord {
	superclass parent
        classmethod find args {
	    return "[self] called with arguments: $args"
	}
    }
    oo::class create Table {
	superclass ActiveRecord
    }
    set t [Table new]
    $t find 1 2 3
} -cleanup {
    parent destroy
} -result {::Table called with arguments: 1 2 3}
test ooUtil-1.6 {TIP 478: classmethod and instances} -setup {
    oo::class create parent
} -body {
    oo::class create ActiveRecord {
	superclass parent
        classmethod find args {
	    return "[self] called with arguments: $args"
	}
    }
    oo::class create Table {
	superclass ActiveRecord
	unexport find
    }
    set t [Table new]
    $t find 1 2 3
} -returnCodes error -cleanup {
    parent destroy
} -match glob -result {unknown method "find": must be *}
test ooUtil-1.7 {} -setup {
    oo::class create parent
} -body {
    oo::class create Foo {
	superclass parent
        classmethod bar {} {
            puts "This is in the class; self is [self]"
            my meee
        }
        classmethod meee {} {
            puts "This is meee"
        }
    }
    oo::class create Grill {
        superclass Foo
        classmethod meee {} {
            puts "This is meee 2"
        }
    }
    list [Foo bar] [Grill bar] [[Foo new] bar] [[Grill new] bar]
} -cleanup {
    parent destroy
} -result {{} {} {} {}} -output "This is in the class; self is ::Foo\nThis is meee\nThis is in the class; self is ::Grill\nThis is meee 2\nThis is in the class; self is ::Foo\nThis is meee\nThis is in the class; self is ::Grill\nThis is meee 2\n"
# Two tests to confirm that we correctly initialise the scripted part of TclOO
# in child interpreters. This is slightly tricky at the implementation level
# because we cannot count on either [source] or [open] being available.
test ooUtil-1.8 {TIP 478: classmethod in child interp} -setup {
    set childinterp [interp create]
} -body {
    $childinterp eval {
	oo::class create ActiveRecord {
	    classmethod find args {
		return "[self] called with arguments: $args"
	    }
	}
	oo::class create Table {
	    superclass ActiveRecord
	}
	# This is confirming that this is not the master interpreter
	list [Table find foo bar] [info globals childinterp]
    }
} -cleanup {
    interp delete $childinterp
} -result {{::Table called with arguments: foo bar} {}}
test ooUtil-1.9 {TIP 478: classmethod in safe child interp} -setup {
    set safeinterp [interp create -safe]
} -body {
    $safeinterp eval {
	oo::class create ActiveRecord {
	    classmethod find args {
		return "[self] called with arguments: $args"
	    }
	}
	oo::class create Table {
	    superclass ActiveRecord
	}
	# This is confirming that this is a (basic) safe interpreter
	list [Table find foo bar] [info commands source]
    }
} -cleanup {
    interp delete $safeinterp
} -result {{::Table called with arguments: foo bar} {}}

test ooUtil-2.1 {TIP 478: callback generation} -setup {
    oo::class create parent
} -body {
    oo::class create c {
	superclass parent
	method CallMe {} { return ok,[self] }
	method makeCall {} {
	    return [callback CallMe]
	}
    }
    c create ::context
    set cb [context makeCall]
    {*}$cb
} -cleanup {
    parent destroy
} -result {ok,::context}
test ooUtil-2.2 {TIP 478: callback generation} -setup {
    oo::class create parent
} -body {
    oo::class create c {
	superclass parent
	method CallMe {a b c} { return ok,[self],$a,$b,$c }
	method makeCall {b} {
	    return [callback CallMe 123 $b]
	}
    }
    c create ::context
    set cb [context makeCall "a b c"]
    {*}$cb PQR
} -cleanup {
    parent destroy
} -result {ok,::context,123,a b c,PQR}
test ooUtil-2.3 {TIP 478: callback generation, alternate name} -setup {
    oo::class create parent
} -body {
    oo::class create c {
	superclass parent
	method CallMe {} { return ok,[self] }
	method makeCall {} {
	    return [mymethod CallMe]
	}
    }
    c create ::context
    set cb [context makeCall]
    {*}$cb
} -cleanup {
    parent destroy
} -result {ok,::context}
test ooUtil-2.4 {TIP 478: callback generation, alternate name} -setup {
    oo::class create parent
} -body {
    oo::class create c {
	superclass parent
	method CallMe {a b c} { return ok,[self],$a,$b,$c }
	method makeCall {b} {
	    return [mymethod CallMe 123 $b]
	}
    }
    c create ::context
    set cb [context makeCall "a b c"]
    {*}$cb PQR
} -cleanup {
    parent destroy
} -result {ok,::context,123,a b c,PQR}
test ooUtil-2.5 {TIP 478: callbacks and method lifetime} -setup {
    oo::class create parent
} -body {
    oo::class create c {
	superclass parent
	method makeCall {b} {
	    return [callback CallMe 123 $b]
	}
    }
    c create ::context
    set cb [context makeCall "a b c"]
    set result [list [catch {{*}$cb PQR} msg] $msg]
    oo::objdefine context {
	method CallMe {a b c} { return ok,[self],$a,$b,$c }
    }
    lappend result [{*}$cb PQR]
} -cleanup {
    parent destroy
} -result {1 {unknown method "CallMe": must be <cloned>, destroy, eval, makeCall, unknown, variable or varname} {ok,::context,123,a b c,PQR}}
test ooUtil-2.6 {TIP 478: callback use case} -setup {
    oo::class create parent
    unset -nocomplain x
} -body {
    oo::class create c {
	superclass parent
	variable count
	constructor {var} {
	    set count 0
	    upvar 1 $var v
	    trace add variable v write [callback TraceCallback]
	}
	method count {} {return $count}
	method TraceCallback {name1 name2 op} {
	    incr count
	}
    }
    set o [c new x]
    for {set x 0} {$x < 5} {incr x} {}
    $o count
} -cleanup {
    unset -nocomplain x
    parent destroy
} -result 6

test ooUtil-3.1 {TIP 478: class initialisation} -setup {
    oo::class create parent
    catch {rename ::foobar-3.1 {}}
} -body {
    oo::class create ::cls {
	superclass parent
	initialise {
	    proc foobar-3.1 {} {return ok}
	}
	method calls {} {
	    list [catch foobar-3.1 msg] $msg \
		[namespace eval [info object namespace [self class]] foobar-3.1]
	}
    }
    [cls new] calls
} -cleanup {
    parent destroy
} -result {1 {invalid command name "foobar-3.1"} ok}
test ooUtil-3.2 {TIP 478: class variables} -setup {
    oo::class create parent
    catch {rename ::foobar-3.1 {}}
} -body {
    oo::class create ::cls {
	superclass parent
	initialise {
	    variable x 123
	}
	method call {} {
	    classvariable x
	    incr x
	}
    }
    cls create a
    cls create b
    cls create c
    list [a call] [b call] [c call] [a call] [b call] [c call]
} -cleanup {
    parent destroy
} -result {124 125 126 127 128 129}
test ooUtil-3.3 {TIP 478: class initialisation} -setup {
    oo::class create parent
    catch {rename ::foobar-3.3 {}}
} -body {
    oo::class create ::cls {
	superclass parent
	initialize {
	    proc foobar-3.3 {} {return ok}
	}
	method calls {} {
	    list [catch foobar-3.3 msg] $msg \
		[namespace eval [info object namespace [self class]] foobar-3.3]
	}
    }
    [cls new] calls
} -cleanup {
    parent destroy
} -result {1 {invalid command name "foobar-3.3"} ok}
test ooUtil-3.4 {TIP 478: class initialisation} -setup {
    oo::class create parent
    catch {rename ::appendToResultVar {}}
    proc ::appendToResultVar args {
	lappend ::result {*}$args
    }
    set result {}
} -body {
    trace add execution oo::define::initialise enter appendToResultVar
    oo::class create ::cls {
	superclass parent
	initialize {proc xyzzy {} {}}
    }
    return $result
} -cleanup {
    catch {
	trace remove execution oo::define::initialise enter appendToResultVar
    }
    rename ::appendToResultVar {}
    parent destroy
} -result {{initialize {proc xyzzy {} {}}} enter}
test ooUtil-3.5 {TIP 478: class initialisation} -body {
    oo::define oo::object {
	::list [::namespace which initialise] [::namespace which initialize] \
	     [::namespace origin initialise] [::namespace origin initialize]
    }
} -result {::oo::define::initialise ::oo::define::initialize ::oo::define::initialise ::oo::define::initialise}

test ooUtil-4.1 {TIP 478: singleton} -setup {
    oo::class create parent
} -body {
    oo::singleton create xyz {
	superclass parent
    }
    set x [xyz new]
    set y [xyz new]
    set z [xyz new]
    set code [catch {$x destroy} msg]
    set p [xyz new]
    lappend code [catch {rename $x ""}]
    set q [xyz new]
    string map [list $x ONE $q TWO] [list {*}$code $x $y $z $p $q [xyz new]]
} -cleanup {
    parent destroy
} -result {1 0 ONE ONE ONE ONE TWO TWO}
test ooUtil-4.2 {TIP 478: singleton errors} -setup {
    oo::class create parent
} -body {
    oo::singleton create xyz {
	superclass parent
    }
    [xyz new] destroy
} -returnCodes error -cleanup {
    parent destroy
} -result {may not destroy a singleton object}
test ooUtil-4.3 {TIP 478: singleton errors} -setup {
    oo::class create parent
} -body {
    oo::singleton create xyz {
	superclass parent
    }
    oo::copy [xyz new]
} -returnCodes error -cleanup {
    parent destroy
} -result {may not clone a singleton object}


test ooUtil-5.1 {TIP 478: abstract} -setup {
    oo::class create parent
} -body {
    oo::abstract create xyz {
	superclass parent
	method foo {} {return 123}
    }
    oo::class create pqr {
	superclass xyz
	method bar {} {return 456}
    }
    set codes [list [catch {xyz new}] [catch {xyz create x}] [catch {xyz createWithNamespace x y}]]
    set x [pqr new]
    set y [pqr create ::y]
    lappend codes [$x foo] [$x bar] $y
} -cleanup {
    parent destroy
} -result {1 1 1 123 456 ::y}

test ooUtil-6.1 {TIP 478: classvarable} -setup {
    oo::class create parent
} -body {
    oo::class create xyz {
	superclass parent
	initialise {
	    variable x 1 y 2
	}
	method a {} {
	    classvariable x
	    incr x
	}
	method b {} {
	    classvariable y
	    incr y
	}
	method c {} {
	    classvariable x y
	    list $x $y
	}
    }
    set p [xyz new]
    set q [xyz new]
    set result [list [$p c] [$q c]]
    $p a
    $q b
    lappend result [[xyz new] c]
} -cleanup {
    parent destroy
} -result {{1 2} {1 2} {2 3}}
test ooUtil-6.2 {TIP 478: classvarable error case} -setup {
    oo::class create parent
} -body {
    oo::class create xyz {
	superclass parent
	method a {} {
	    classvariable x(1)
	    incr x(1)
	}
    }
    set p [xyz new]
    set q [xyz new]
    list [$p a] [$q a]
} -returnCodes error -cleanup {
    parent destroy
} -result {bad variable name "x(1)": can't create a scalar variable that looks like an array element}
test ooUtil-6.3 {TIP 478: classvarable error case} -setup {
    oo::class create parent
} -body {
    oo::class create xyz {
	superclass parent
	method a {} {
	    classvariable ::x
	    incr x
	}
    }
    set p [xyz new]
    set q [xyz new]
    list [$p a] [$q a]
} -returnCodes error -cleanup {
    parent destroy
} -result {bad variable name "::x": can't create a local variable with a namespace separator in it}

test ooUtil-7.1 {TIP 478: link calling pattern} -setup {
    oo::class create parent
} -body {
    oo::class create cls {
	superclass parent
	method foo {} {return "in foo of [self]"}
	method Bar {} {return "in bar of [self]"}
	method Grill {} {return "in grill of [self]"}
	export eval
	constructor {} {
	    link foo
	    link {bar Bar} {grill Grill}
	}
    }
    cls create o
    o eval {list [foo] [bar] [grill]}
} -cleanup {
    parent destroy
} -result {{in foo of ::o} {in bar of ::o} {in grill of ::o}}
test ooUtil-7.2 {TIP 478: link removed when [my] disappears} -setup {
    oo::class create parent
} -body {
    oo::class create cls {
	superclass parent
	method foo {} {return "in foo of [self]"}
	constructor {cmd} {
	    link [list ::$cmd foo]
	}
    }
    cls create o pqr
    list [o foo] [pqr] [rename [info object namespace o]::my {}] [catch pqr msg] $msg
} -cleanup {
    parent destroy
} -result {{in foo of ::o} {in foo of ::o} {} 1 {invalid command name "pqr"}}

# Tests that verify issues detected with the tcllib version of the code
test ooUtil-tcllib-ticket-b3577ed586 {test scoping of delegation in oo::class.Delegate } -setup {
    oo::class create animal {}
    namespace eval ::ooutiltest {
	oo::class create pet { superclass animal }
    }
} -body {
    namespace eval ::ooutiltest {
	oo::class create dog { superclass pet }
    }
} -cleanup {
    namespace delete ooutiltest
    rename animal {}
} -result {::ooutiltest::dog}
test ooUtil-tcllib-ticket-fe7a0e0a3a {classmethod must not interfere with constructor signatures} -setup {
    oo::class create TestClass {
        superclass oo::class
        self method create {name ignore body} {
            next $name $body
        }
    }
} -body {
    TestClass create okay {} {}
} -cleanup {
    rename TestClass {}
} -result {::okay}
 
cleanupTests
return

# Local Variables:
# fill-column: 78
# mode: tcl
# End:

Changes to tests/scan.test.

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	default {
	    return 0
	}
    }
}

testConstraint ieeeFloatingPoint [testIEEE]
testConstraint wideIs64bit \
	[expr {(wide(0x80000000) > 0) && (wide(0x8000000000000000) < 0)}]
 
test scan-1.1 {BuildCharSet, CharInSet} {
    list [scan foo {%[^o]} x] $x
} {1 f}
test scan-1.2 {BuildCharSet, CharInSet} {
    list [scan \]foo {%[]f]} x] $x
} {1 \]f}






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	default {
	    return 0
	}
    }
}

testConstraint ieeeFloatingPoint [testIEEE]
testConstraint wideIs64bit [expr {wide(0x8000000000000000) < 0}]

 
test scan-1.1 {BuildCharSet, CharInSet} {
    list [scan foo {%[^o]} x] $x
} {1 f}
test scan-1.2 {BuildCharSet, CharInSet} {
    list [scan \]foo {%[]f]} x] $x
} {1 \]f}

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# makeHeader.tcl --
#
#	This script generates embeddable C source (in a .h file) from a .tcl
#	script.
#
# Copyright (c) 2018 Donal K. Fellows
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
package require Tcl 8.6

namespace eval makeHeader {

    ####################################################################
    #
    # mapSpecial --
    #	Transform a single line so that it is able to be put in a C string.
    #
    proc mapSpecial {str} {
	# All Tcl metacharacters and key C backslash sequences
	set MAP {
	    \" \\\\\" \\ \\\\\\\\ $ \\$ [ \\[ ] \\] ' \\\\' ? \\\\?
	    \a \\\\a \b \\\\b \f \\\\f \n \\\\n \r \\\\r \t \\\\t \v \\\\v
	}
	set XFORM {[format \\\\\\\\u%04x {*}[scan & %c]]}

	subst [regsub -all {[^\u0020-\u007e]} [string map $MAP $str] $XFORM]
    }

    ####################################################################
    #
    # compactLeadingSpaces --
    #	Converts the leading whitespace on a line into a more compact form.
    #
    proc compactLeadingSpaces {line} {
	set line [string map {\t {        }} [string trimright $line]]
	if {[regexp {^[ ]+} $line spaces]} {
	    regsub -all {[ ]{4}} $spaces \t replace
	    set len [expr {[string length $spaces] - 1}]
	    set line [string replace $line 0 $len $replace]
	}
	return $line
    }

    ####################################################################
    #
    # processScript --
    #	Transform a whole sequence of lines with [mapSpecial].
    #
    proc processScript {scriptLines} {
	lmap line $scriptLines {
	    # Skip blank and comment lines; they're there in the original
	    # sources so we don't need to copy them over.
	    if {[regexp {^\s*(?:#|$)} $line]} continue
	    format {"%s"} [mapSpecial [compactLeadingSpaces $line]\n]
	}
    }

    ####################################################################
    #
    # updateTemplate --
    #	Rewrite a template to contain the content from the input script.
    #
    proc updateTemplate {dataVar scriptLines} {
	set BEGIN "*!BEGIN!: Do not edit below this line.*"
	set END "*!END!: Do not edit above this line.*"

	upvar 1 $dataVar data

	set from [lsearch -glob $data $BEGIN]
	set to [lsearch -glob $data $END]
	if {$from == -1 || $to == -1 || $from >= $to} {
	    throw BAD "not a template"
	}

	set data [lreplace $data $from+1 $to-1 {*}[processScript $scriptLines]]
    }

    ####################################################################
    #
    # stripSurround --
    #	Removes the header and footer comments from a (line-split list of
    #	lines of) Tcl script code.
    #
    proc stripSurround {lines} {
	set RE {^\s*$|^#}
	set state 0
	set lines [lmap line [lreverse $lines] {
	    if {!$state && [regexp $RE $line]} continue {
		set state 1
		set line
	    }
	}]
	return [lmap line [lreverse $lines] {
	    if {$state && [regexp $RE $line]} continue {
		set state 0
		set line
	    }
	}]
    }

    ####################################################################
    #
    # updateTemplateFile --
    #	Rewrites a template file with the lines of the given script.
    #
    proc updateTemplateFile {headerFile scriptLines} {
	set f [open $headerFile "r+"]
	try {
	    set content [split [chan read -nonewline $f] "\n"]
	    updateTemplate content [stripSurround $scriptLines]
	    chan seek $f 0
	    chan puts $f [join $content \n]
	    chan truncate $f
	} trap BAD msg {
	    # Add the filename to the message
	    throw BAD "${headerFile}: $msg"
	} finally {
	    chan close $f
	}
    }

    ####################################################################
    #
    # readScript --
    #	Read a script from a file and return its lines.
    #
    proc readScript {script} {
	set f [open $script]
	try {
	    chan configure $f -encoding utf-8
	    return [split [string trim [chan read $f]] "\n"]
	} finally {
	    chan close $f
	}
    }

    ####################################################################
    #
    # run --
    #	The main program of this script.
    #
    proc run {args} {
	try {
	    if {[llength $args] != 2} {
		throw ARGS "inputTclScript templateFile"
	    }
	    lassign $args inputTclScript templateFile

	    puts "Inserting $inputTclScript into $templateFile"
	    set scriptLines [readScript $inputTclScript]
	    updateTemplateFile $templateFile $scriptLines
	    exit 0
	} trap ARGS msg {
	    puts stderr "wrong # args: should be \"[file tail $::argv0] $msg\""
	    exit 2
	} trap BAD msg {
	    puts stderr $msg
	    exit 1
	} trap POSIX msg {
	    puts stderr $msg
	    exit 1
	} on error {- opts} {
	    puts stderr [dict get $opts -errorinfo]
	    exit 3
	}
    }
}

########################################################################
#
# Launch the main program
#
if {[info script] eq $::argv0} {
    makeHeader::run {*}$::argv
}
 
# Local-Variables:
# mode: tcl
# fill-column: 78
# End:

Changes to unix/Makefile.in.

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#--------------------------------------------------------------------------
# The information below is usually usable as is. The configure script won't
# modify it and it only exists to make working around selected rare system
# configurations easier.
#--------------------------------------------------------------------------

GDB			= gdb

TRACE			= strace
TRACE_OPTS		=
VALGRIND		= valgrind
VALGRINDARGS		= --tool=memcheck --num-callers=24 \
    --leak-resolution=high --leak-check=yes --show-reachable=yes -v \
    --suppressions=$(TOOL_DIR)/valgrind_suppress

................................................................................

gdb-test: ${TCLTEST_EXE}
	@echo "set env @[email protected]=`pwd`:$${@[email protected]}" > gdb.run
	@echo "set env TCL_LIBRARY=${TCL_BUILDTIME_LIBRARY}" >> gdb.run
	@echo "set args $(TOP_DIR)/tests/all.tcl $(TESTFLAGS) -singleproc 1" >> gdb.run
	$(GDB) ./${TCLTEST_EXE} --command=gdb.run
	rm gdb.run







# Useful target to launch a built tcltest with the proper path,...
runtest: ${TCLTEST_EXE}
	$(SHELL_ENV) ./${TCLTEST_EXE}

# Useful target for running the test suite with an unwritable current
# directory...
................................................................................

tclNamesp.o: $(GENERIC_DIR)/tclNamesp.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNamesp.c

tclNotify.o: $(GENERIC_DIR)/tclNotify.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNotify.c

tclOO.o: $(GENERIC_DIR)/tclOO.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOO.c

tclOOBasic.o: $(GENERIC_DIR)/tclOOBasic.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOOBasic.c

tclOOCall.o: $(GENERIC_DIR)/tclOOCall.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOOCall.c
................................................................................
	@echo "This warning can be safely ignored, do not report as a bug!"

$(GENERIC_DIR)/tclOOStubInit.c: $(GENERIC_DIR)/tclOO.decls
	@echo "Warning: tclOOStubInit.c may be out of date."
	@echo "Developers may want to run \"make genstubs\" to regenerate."
	@echo "This warning can be safely ignored, do not report as a bug!"






genstubs:
	$(NATIVE_TCLSH) $(TOOL_DIR)/genStubs.tcl $(GENERIC_DIR) \
		$(GENERIC_DIR)/tcl.decls $(GENERIC_DIR)/tclInt.decls \
		$(GENERIC_DIR)/tclTomMath.decls
	$(NATIVE_TCLSH) $(TOOL_DIR)/genStubs.tcl $(GENERIC_DIR) \
		$(GENERIC_DIR)/tclOO.decls





#
# Target to check that all exported functions have an entry in the stubs
# tables.
#

checkstubs: $(TCL_LIB_FILE)
	[email protected] i in `nm -p $(TCL_LIB_FILE) \






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#--------------------------------------------------------------------------
# The information below is usually usable as is. The configure script won't
# modify it and it only exists to make working around selected rare system
# configurations easier.
#--------------------------------------------------------------------------

GDB			= gdb
LLDB			= lldb
TRACE			= strace
TRACE_OPTS		=
VALGRIND		= valgrind
VALGRINDARGS		= --tool=memcheck --num-callers=24 \
    --leak-resolution=high --leak-check=yes --show-reachable=yes -v \
    --suppressions=$(TOOL_DIR)/valgrind_suppress

................................................................................

gdb-test: ${TCLTEST_EXE}
	@echo "set env @[email protected]=`pwd`:$${@[email protected]}" > gdb.run
	@echo "set env TCL_LIBRARY=${TCL_BUILDTIME_LIBRARY}" >> gdb.run
	@echo "set args $(TOP_DIR)/tests/all.tcl $(TESTFLAGS) -singleproc 1" >> gdb.run
	$(GDB) ./${TCLTEST_EXE} --command=gdb.run
	rm gdb.run

lldb-test: ${TCLTEST_EXE}
	@echo "settings set target.env-vars @[email protected]=`pwd`:$${@[email protected]}" > lldb.run
	@echo "settings set target.env-vars TCL_LIBRARY=${TCL_BUILDTIME_LIBRARY}" >> lldb.run
	$(LLDB) --source lldb.run ./${TCLTEST_EXE} -- $(TOP_DIR)/tests/all.tcl $(TESTFLAGS) -singleproc 1
	rm lldb.run

# Useful target to launch a built tcltest with the proper path,...
runtest: ${TCLTEST_EXE}
	$(SHELL_ENV) ./${TCLTEST_EXE}

# Useful target for running the test suite with an unwritable current
# directory...
................................................................................

tclNamesp.o: $(GENERIC_DIR)/tclNamesp.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNamesp.c

tclNotify.o: $(GENERIC_DIR)/tclNotify.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNotify.c

tclOO.o: $(GENERIC_DIR)/tclOO.c $(GENERIC_DIR)/tclOOScript.h
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOO.c

tclOOBasic.o: $(GENERIC_DIR)/tclOOBasic.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOOBasic.c

tclOOCall.o: $(GENERIC_DIR)/tclOOCall.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOOCall.c
................................................................................
	@echo "This warning can be safely ignored, do not report as a bug!"

$(GENERIC_DIR)/tclOOStubInit.c: $(GENERIC_DIR)/tclOO.decls
	@echo "Warning: tclOOStubInit.c may be out of date."
	@echo "Developers may want to run \"make genstubs\" to regenerate."
	@echo "This warning can be safely ignored, do not report as a bug!"

$(GENERIC_DIR)/tclOOScript.h: $(GENERIC_DIR)/tclOOScript.tcl
	@echo "Warning: tclOOScript.h may be out of date."
	@echo "Developers may want to run \"make genscript\" to regenerate."
	@echo "This warning can be safely ignored, do not report as a bug!"

genstubs:
	$(NATIVE_TCLSH) $(TOOL_DIR)/genStubs.tcl $(GENERIC_DIR) \
		$(GENERIC_DIR)/tcl.decls $(GENERIC_DIR)/tclInt.decls \
		$(GENERIC_DIR)/tclTomMath.decls
	$(NATIVE_TCLSH) $(TOOL_DIR)/genStubs.tcl $(GENERIC_DIR) \
		$(GENERIC_DIR)/tclOO.decls

genscript:
	$(NATIVE_TCLSH) $(TOOL_DIR)/makeHeader.tcl \
		$(GENERIC_DIR)/tclOOScript.tcl $(GENERIC_DIR)/tclOOScript.h

#
# Target to check that all exported functions have an entry in the stubs
# tables.
#

checkstubs: $(TCL_LIB_FILE)
	[email protected] i in `nm -p $(TCL_LIB_FILE) \