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# -*- Tcl -*-
package require nx
package require nx::test
set ::tcl86 [package vsatisfies [package req Tcl] 8.6-]
nx::test configure -count 10
::nx::configure defaultMethodCallProtection false
::nsf::method::alias ::nx::Object set -frame object ::set
nx::Class create O -superclass nx::Object {
:method init {} {
set ::ObjectDestroy 0
set ::firstDestroy 0
}
:method destroy {} {
incr ::ObjectDestroy
#[:info class] dealloc [current]
next
}
}
#
# classical simple case
#
set case "simple destroy (1)"
nx::test case simple-destroy-1
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
:destroy
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
puts stderr XXXX2
? "[current] set x" 1 "$::case can still access [current]"
puts stderr XXXX3
? {::nsf::object::exists c1} 1 "$::case object still exists in proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 0 "$::case object deleted"
? "set ::firstDestroy" 1 "firstDestroy called"
#
# simple case, destroy does not propagate, c1 survives
#
set case "simple destroy (2), destroy blocks"
nx::test case simple-destroy-2
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy block"}
C method foo {} {
puts stderr "==== $::case [current]"
:destroy
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
? "[current] set x" 1 "$::case can still access [current]"
? {::nsf::object::exists c1} 1 "$::case object still exists in proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 1 "$::case object deleted"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
#
# simple object recreate
#
set case "recreate"
nx::test case recreate
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
[:info class] create [current]
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
? "[current] set x" 1 "$::case can still access [current]"
? {::nsf::object::exists c1} 1 "$::case object still exists in proc"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 1 "$::case object deleted"
? "set ::firstDestroy" 0 "firstDestroy called"
#
# cmd rename to empty, xotcl provides its own rename and calls destroy
# .. like simple case above
#
set case "cmd rename empty (1)"
nx::test case rename-empty-1
nx::Object create o
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
rename [current] ""
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
? "[current] set x" 1 "$::case can still access [current]"
? {::nsf::object::exists c1} 1 "$::case object still exists in proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 0 "$::case object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
#
# cmd rename to empty, xotcl provides its own rename and calls
# destroy, but destroy does not propagate, c1 survives rename, since
# this is the situation like above, as long xotcl's rename is used.
#
set case "cmd rename empty (2)"
nx::test case rename-empty-2
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy block"}
C method foo {} {
puts stderr "==== $::case [current]"
rename [current] ""
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
? "[current] set x" 1 "$::case can still access [current]"
? {::nsf::object::exists c1} 1 "$::case object still exists in proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
}
C create c1
c1 foo
#puts stderr ======[c1 set x]
? {::nsf::object::exists c1} 1 "$::case object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
#
# cmd rename other xotcl object to current,
# xotcl's rename invokes a move
#
set case "cmd rename object to current"
nx::test case rename-to-current
nx::Object create o
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
rename o [current]
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#? "[current] set x" 1 "$::case can still access [current]"
if {$::tcl86} {
? "[current] set x" {TCL LOOKUP VARNAME x} "$::case cannot access [current]"
} else {
? "[current] set x" {can't read "x": no such variable} "$::case cannot access [current]"
}
? {::nsf::object::exists c1} 1 "$::case object still exists in proc"
#? "set ::firstDestroy" 0 "firstDestroy called"
#? "set ::ObjectDestroy" 0 "ObjectDestroy called"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 1 "$::case object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
#
# cmd rename other proc to current object,
# xotcl's rename invokes a move
#
set case "cmd rename proc to current"
nx::test case rename-proc-to-current
proc o args {}
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
set x [catch {rename o [current]}]
? "set _ $x" 1 "$::case tcl refuses to rename into an existing command"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 1 "$::case object still exists after proc"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
rename o ""
#
# namespace delete: tcl delays delete until the namespace is not
# active anymore. destroy is called after BBBB. Hypothesis: destroy is
# called only when we are lucky, since C might be destroyed before c1
# by the namespace delete
#
set case "delete parent namespace (1)"
nx::test case delete-parent-namespace
namespace eval ::test {
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
namespace delete ::test
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#
# If the following line is commented in, the namespace is deleted
# here. Is there a bug with nsPtr->activationCount
#
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBB"
puts stderr "???? [current] exists [::nsf::object::exists [current]]"
? "::nsf::object::exists [current]" 0 ;# WHY?
puts stderr "???? [current] exists [::nsf::object::exists [current]]"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "$::case destroy not yet called"
}
}
test::C create test::c1
test::c1 foo
? {::nsf::object::exists test::c1} 0 "object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "destroy was called when popping stack frame"
? {::nsf::object::exists ::test::C} 0 "class still exists after proc"
? {namespace exists ::test::C} 0 "namespace ::test::C still exists after proc"
? {namespace exists ::test} 1 "parent ::test namespace still exists after proc"
? {namespace exists ::xotcl::classes::test::C} 0 "namespace ::xotcl::classes::test::C still exists after proc"
#
# namespace delete: tcl delays delete until the namespace is not
# active anymore. destroy is called after BBBB, but does not
# propagate.
#
set case "delete parent namespace (2)"
nx::test case delete-parent-namespace-2
namespace eval ::test {
? {namespace exists test::C} 0 "exists test::C"
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy block"}
C method foo {} {
puts stderr "==== $::case [current]"
namespace delete ::test
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#
# If the following line is commented in, the namespace is deleted
# here. Is there a bug with nsPtr->activationCount
#
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBBB"
puts stderr "???? [current] exists [::nsf::object::exists [current]]"
? "::nsf::object::exists [current]" 0 "$::case object still exists in proc";# WHY?
puts stderr "???? [current] exists [::nsf::object::exists [current]]"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"; # NOT YET CALLED
}
}
test::C create test::c1
test::c1 foo
? {::nsf::object::exists test::c1} 0 "$::case object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called" ;# toplevel destroy was blocked
#
# controlled namespace delete: xotcl has its own namespace cleanup,
# topological order should be always ok. however, the object o::c1 is
# already deleted, while a method of it is executed
#
set case "delete parent object (1)"
nx::test case delete-parent-object
nx::Object create o
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
o destroy
puts stderr "AAAA"
# the following object::exists call has a problem in Tcl_GetCommandFromObj(),
# which tries to access invalid memory
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBBB"
? {::nsf::object::exists ::o::c1} 0 "$::case object still exists in proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
}
C create o::c1
o::c1 foo
? {::nsf::object::exists ::o::c1} 0 "$::case object o::c1 still exists after proc"
? {::nsf::object::exists o} 0 "$::case object o still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
#
# controlled namespace delete: xotcl has its own namespace cleanup.
# destroy does not delegate, but still o::c1 does not survive, since o
# is deleted.
#
set case "delete parent object (2)"
nx::test case delete-parent-object-2
nx::Object create o
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy block"}
C method foo {} {
puts stderr "==== $::case [current]"
o destroy
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBB"
? {::nsf::object::exists ::o::c1} 0 "$::case object still exists in proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
}
C create o::c1
o::c1 foo
? {::nsf::object::exists ::o::c1} 0 "$::case object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
#
# create another cmd with the current object's name.
# XOTcl 1.6 crashed on this test.
#
set case "redefine current object as proc"
nx::test case redefine-current-object-as-proc
nx::Object create o
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
proc [current] {args} {puts HELLO}
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBB"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
? {::nsf::object::exists c1} 0 "$::case object still exists in proc"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 0 "$::case object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
rename c1 ""
#
# delete the active class
#
set case "delete active class"
nx::test case delete-active-class
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
C destroy
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBB"
#? [:info class] ::xotcl::Object "object reclassed"
? [:info class] ::C "object reclassed?"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
? {::nsf::object::exists c1} 1 "object still exists in proc"
#? {::nsf::is class ::C} 0 "class still exists in proc"
? {::nsf::is class ::C} 1 "class still exists in proc"
}
C create c1
c1 foo
? {::nsf::object::exists c1} 1 "object still exists after proc"
? [c1 info class] ::nx::Object "after proc: object reclassed?"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "ObjectDestroy called"
#
# delete active object nested in class
#
set case "delete active object nested in class"
nx::test case delete-active-object-nested-in-class
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
C destroy
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "BBB"
#? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::firstDestroy" 1 "firstDestroy called"
#? "set ::ObjectDestroy" 0 "ObjectDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
? [:info class] ::C "object reclassed"
#? [:info class] ::xotcl::Object "object reclassed"
? {::nsf::object::exists ::C::c1} 1 "object still exists in proc"
? {::nsf::is class ::C} 1 "class still exists in proc"
}
C create ::C::c1
C::c1 foo
#puts stderr ======[::nsf::object::exists ::C::c1]
? {::nsf::object::exists ::C::c1} 0 "object still exists after proc"
? {::nsf::is class ::C} 0 "class still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "ObjectDestroy called"
#
nx::test case nesting-destroy {
nx::Object create x
nx::Object create x::y
x destroy
? {::nsf::object::exists x} 0 "parent object gone"
? {::nsf::object::exists x::y} 0 "child object gone"
}
nx::test case deleting-aliased-object1 {
nx::Object create o
nx::Object create o2
# behave like an ensemble: aliased object has self of the caller
::nsf::object::property o2 perobjectdispatch 1
::nsf::method::alias o a o2
? {o a} ::o2 "call object via alias"
? {o info object method type a} alias
## the ensemble-object needs per-object methods
o2 object method info args {:info {*}$args}
o2 object method set args {:set {*}$args}
::nsf::object::property o2 keepcallerself 1
? {o a info vars} "" "call info on aliased object"
? {o set x 10} 10 "set variable on object"
? {o info vars} x "query vars"
? {o a info vars} x "query vars via alias"
? {o a set x} 10 "set var via alias"
o2 destroy
#? {o a info vars} "Trying to dispatch deleted object via method 'a'" "1st call on deleted object"
#? {o a info vars} "::o: unable to dispatch method 'a'" "2nd call on deleted object"
? {o a info vars} {target "o2" of alias a apparently disappeared} "1st call on deleted object"
? {o a info vars} {target "o2" of alias a apparently disappeared} "2nd call on deleted object"
}
nx::test case deleting-aliased-object2 {
nx::Object create o
nx::Object create o2
# The methods of the aliased object have their own self
::nsf::method::alias o a o2
? {o a} ::o2 "call object via alias"
? {o info object method type a} alias
# In order to avoid recursive calls, we have to provide the
# selector for the method definitions in nx::Object
o2 object method info args {: ::nsf::classes::nx::Object::info {*}$args}
o2 object method set args {: ::nsf::classes::nx::Object::set {*}$args}
? {o a info vars} "" "call info on aliased object"
? {o set x 10} 10 "set variable on object o"
? {o info vars} x "query vars of o"
? {o a info vars} "" "query vars via alias (from o2)"
? {o a set y 1} 1 "set var via alias (on o2)"
? {o a info vars} y "query vars via alias (from o2)"
o2 destroy
#? {o a info vars} "Trying to dispatch deleted object via method 'a'" "1st call on deleted object"
#? {o a info vars} "::o: unable to dispatch method 'a'" "2nd call on deleted object"
? {o a info vars} {target "o2" of alias a apparently disappeared} "1st call on deleted object"
? {o a info vars} {target "o2" of alias a apparently disappeared} "2nd call on deleted object"
}
set case "deleting object with alias to object"
nx::test case deleting-object-with-alias-to-object
nx::Object create o
nx::Object create o3
::nsf::method::alias o x o3
o destroy
? {::nsf::object::exists o} 0 "parent object gone"
? {::nsf::object::exists o3} 1 "aliased object still here"
o3 destroy
? {::nsf::object::exists o3} 0 "aliased object destroyed"
set case "create an alias, and delete cmd via aggregation"
nx::test case create-alias-delete-via-aggregation
nx::Object create o
nx::Object create o3
::nsf::method::alias o x o3
#o::x destroy
o3 destroy
? {o x foo} {target "o3" of alias x apparently disappeared}
#? {o x foo} {Trying to dispatch deleted object via method 'x'}
? {::nsf::object::exists o3} 0 "aliased object destroyed"
o destroy
#
# create an alias, and recreate obj
#
nx::test case create-alias-and-recreate-obj {
nx::Object create o
nx::Object create o3
o object alias x o3
nx::Object create o3
o3 object method set args {: ::nsf::classes::nx::Object::set {*}$args}
o x set a 13
? {o x set a} 13 "aliased object works after recreate"
}
#
# create an alias on the class level, double aliasing, delete aliased
# object
#
nx::test case create-alias-on-class-delete-aliased-obj {
nx::Class create C
nx::Object create o
nx::Object create o3
::nsf::object::property o keepcallerself 1
::nsf::object::property o3 keepcallerself 1
::nsf::object::property o perobjectdispatch 1
::nsf::object::property o3 perobjectdispatch 1
o object alias a o3
C alias b o
o3 object method set args {: ::nsf::classes::nx::Object::set {*}$args}
o object method set args {: ::nsf::classes::nx::Object::set {*}$args}
C create c1
? {c1 b set B 2} 2 "call 1st level"
? {c1 b a set A 3} 3 "call 2nd level"
? {c1 set B} 2 "call 1st level ok"
? {c1 set A} 3 "call 2nd level ok"
o destroy
#? {c1 b} "Trying to dispatch deleted object via method 'b'" "call via alias to deleted object"
? {c1 b} {target "o" of alias b apparently disappeared} "call via alias to deleted object"
}
#
# create an alias on the class level, double aliasing, destroy class
#
nx::test case create-alias-on-class-destroy-class {
nx::Class create C
nx::Object create o
nx::Object create o3
o object alias a o3
C alias b o
C create c1
C destroy
? {::nsf::object::exists o} 1 "object o still here"
? {::nsf::object::exists o3} 1 "object o3 still here"
}
#
# test cases where preexisting namespaces are re-used
#
nx::test case module {
# create a namespace with an object/class in it
namespace eval ::module { nx::Object create foo }
# reuse the namespace for a class/object
nx::Class create ::module
? {::nsf::is class ::module} 1
# delete the object/class ... and namespace
::module destroy
? {::nsf::is class ::module} 0
}
nx::test case namespace-import {
namespace eval ::module {
nx::Class create Foo {
:create foo
}
namespace export Foo foo
}
nx::Class create ::module {
:create mod1
}
? {::nsf::is class ::module::Foo} 1
? {::nsf::is class ::module::foo} 0
? {::nsf::object::exists ::module::foo} 1
? {::nsf::is class ::module} 1
nx::Object create ::o { :require namespace }
namespace eval ::o {namespace import ::module::*}
? {::nsf::is class ::o::Foo} 1
? {::nsf::object::exists ::o::foo} 1
# do not destroy namespace imported objects/classes
::o destroy
? {::nsf::is class ::o::Foo} 0
? {::nsf::object::exists ::o::foo} 0
? {::nsf::is class ::module::Foo} 1
? {::nsf::object::exists ::module::foo} 1
::module destroy
}
# to avoid CallDirectly, we could activate this line
::nx::Class create M {:method dealloc args {next}}
nx::test case delete-parent-namespace-dealloc
namespace eval ::test {
nx::Class create C -superclass O
C method destroy {} {incr ::firstDestroy; puts stderr " *** [current] destroy"; next}
C method foo {} {
puts stderr "==== $::case [current]"
namespace delete ::test
puts stderr "AAAA [current] exists [::nsf::object::exists [current]]"
:set x 1
#
# If the following line is commented in, the namespace is deleted
# here. Is there a bug with nsPtr->activationCount
#
#? "[current] set x" 1 "$::case can still access [current]"
puts stderr "???? [current] exists [::nsf::object::exists [current]]"
? "::nsf::object::exists [current]" 0 ;# WHY?
puts stderr "???? [current] exists [::nsf::object::exists [current]]"
? "set ::firstDestroy" 0 "firstDestroy called"
? "set ::ObjectDestroy" 0 "$::case destroy not yet called"
}
}
test::C create test::c1
test::c1 foo
? {::nsf::object::exists test::c1} 0 "object still exists after proc"
? "set ::firstDestroy" 1 "firstDestroy called"
? "set ::ObjectDestroy" 1 "destroy was called when popping stack frame"
? {::nsf::object::exists ::test::C} 0 "class still exists after proc"
? {namespace exists ::test::C} 0 "namespace ::test::C still exists after proc"
? {namespace exists ::test} 1 "parent ::test namespace still exists after proc"
? {namespace exists ::xotcl::classes::test::C} 0 "namespace ::xotcl::classes::test::C still exists after proc"
nx::test case destroy-during-init {
# create class
nx::Class create Foo {
:public method bar {} {return 1}
:public method baz {} {return 2}
}
# create object
Foo create f1 { :bar; :baz; :destroy }
? {info command f1} "" "explicit destroy of object"
set c [nx::Class new {
:public method bar {} {return 1}
:public method baz {} {return 2}
:new { :bar; :baz; :destroy }
:destroy
}]
? [list info command $c] "" "explicit destroy of class"
package require nx::volatile
::nsf::method::require ::nx::Object volatile
# create new class and object and cleanup everything
set x [nx::Class new {
:volatile
:public method bar {} {return 1}
:public method baz {} {return 2}
:new { :volatile; :bar; :baz }
}]
? [list info command $x] "" "destroy via volatile"
set x [nx::Class new -volatile {
:public method bar {} {return 1}
:public method baz {} {return 2}
:new { :volatile; :bar; :baz }
}]
? [list info command $x] $x "destroy via volatile method"
# create new class and object and cleanup everything + 2 filters
::nx::Object public method f1 args {next}
::nx::Object public method f2 args {next}
::nx::Object filters set {f1 f2}
set x [nx::Class new {
:volatile
:public method bar {} {return 1}
:public method baz {} {return 2}
:new { :volatile; :bar; :baz }
}]
? [list info command $x] "" "destroy via volatile + 2 filters"
set x [nx::Class new -volatile {
:public method bar {} {return 1}
:public method baz {} {return 2}
:new { :volatile; :bar; :baz }
}]
? [list info command $x] $x "destroy via volatile method + 2 filters"
::nx::Object filters set ""
}
nx::test case nested-ordered-composite {
# The following test case an explicit deletion/redefinition of an
# toplevel object (o1) will cause the implicit deletion of a nested
# object o1::o2. The object o2 has as well several included objects,
# containing an "ordered composite". The deletion of the ordered
# compostite causes the (explicit) deletion of its siblings (all
# children of o1::o2). This is actually a stress test for the deletion
# of o2's namespace, since the loop over its children will be
# confronted with the deletion of indirectly deleted items (deleted by
# the deletion of the ordered composite).
nx::Class create C {
:property os
:public method destroy {} {
#puts stderr "[self] destroy ${:os}"
foreach o ${:os} {
if {[::nsf::object::exists $o]} {
#puts stderr "--D $o destroy"
$o destroy
}
next
}
}
}
#
# 10 siblings of oc1:
# deletion order in bucket: 8 4 10 9 5 1 6 2 oc1 7 3
# oc1 deletes 7 and 3, fine
# ... loop might run into an epoched cmd -> might crash
#
set c 0
for {set i 0} {$i < 10} {incr i} {
set os [list]
for {set j 0} {$j < 10} {incr j} {lappend os ::o1::o2::[incr c]}
nx::Object create ::o1
nx::Object create ::o1::o2
foreach o $os {nx::Object create $o}
C create ::o1::o2::oc1 -os $os
? {llength [o1 info children]} 1
? {llength [o1::o2 info children]} 11
}
### 20 siblings of oc1 (has to be >12):
# deletion order in bucket: 17 18 1 20 19 2 3 4 5 6 7 8 9 19 11 oc1 12 13 14 15 16
# oc1 deletes 12 13 14 15 16
# after destroy of oc1
# a) NextHashEntry(hSearch) returns valid looking hPtr
# b) Tcl_GetHashValue(hPtr) returns garbage (uninitialized memory?) instead of cmd
# --> might crash
#
set c 0
for {set i 0} {$i < 10} {incr i} {
set os [list]
for {set j 0} {$j < 20} {incr j} {lappend os ::o1::o2::[incr c]}
nx::Object create ::o1
nx::Object create ::o1::o2
foreach o $os {nx::Object create $o}
C create ::o1::o2::oc1 -os $os
? {llength [o1 info children]} 1
? {llength [o1::o2 info children]} 21
}
# similar to above, but this time partial deletes occur
set c 0
for {set i 0} {$i < 10} {incr i} {
set os [list]
for {set j 0} {$j < 20} {incr j} {lappend os ::o1::o2::[incr c]}
nx::Object create ::o1
nx::Object create ::o1::o2
foreach o $os {nx::Object create $o}
C create ::o1::o2::ocX -os {}
C create ::o1::o2::ocY -os $os
? {llength [o1 info children]} 1
? {llength [o1::o2 info children]} 22
}
}
#
# The following tests the deletion order triggering implicit
# deletions. This caused a crash in nsf 2.0b2.
#
package req nx::serializer
nx::test case class-object-property {
nx::Class create C {
:object property -accessor public x
:property a:int
}
? {::nsf::object::exists ::C} 1
? {::nsf::object::exists ::C::slot} 1
set s(C) [C serialize]
C destroy
? {::nsf::object::exists ::C} 0
? {::nsf::object::exists ::C::slot} 0
eval $s(C)
? {::nsf::object::exists ::C} 1
? {::nsf::object::exists ::C::slot} 1
C::slot destroy
? {::nsf::object::exists ::C} 1
? {::nsf::object::exists ::C::slot} 0
C destroy
? {::nsf::object::exists ::C} 0
}
nx::test case unset-traces-during-cleanup {
global i
set i [interp create]
$i eval {
package req nx
nx::Object create o {
set :x 100
# The following line is tricky: the trailing ";#"
# is used to trim the undesirable extra arguments
# from the trace command.
::trace add variable :x unset "[list set ::X ${:x}];#"
}
}
? {$i eval {info exists ::X}} 0
$i eval {::nsf::finalize -keepvars}
? {$i eval {info exists ::X}} 1
? {$i eval {set ::X}} 100
interp delete $i
unset i
}
nx::test case unset-traces-during-cleanup-with-destroy {
#
# Make sure that a very-late destroy (in the unset trace) does not
# fire ... and does not cause any side effects.
#
global i
set i [interp create]
$i eval {
package req nx
nx::Object create o {
:public object method destroy args {
incr ::X
next
}
set :x 100
# The following line is tricky: the trailing ";#"
# is used to trim the undesirable extra arguments
# from the trace command.
::trace add variable :x unset "[list ::incr ::X]; [list [self] destroy];#"
}
}
? {$i eval {info exists ::X}} 0
$i eval {::nsf::finalize -keepvars}
? {$i eval {info exists ::X}} 1
? {$i eval {set ::X}} 2
interp delete $i
unset i
}
nx::test case unset-traces-during-cleanup-with-destroy-2 {
#
# We are safe when trying to delete the base class/metaclass ...
#
global i
set i [interp create]
$i eval {
package req nx
nx::Object create o {
set :x _
# The following line is tricky: the trailing ";#"
# is used to trim the undesirable extra arguments
# from the trace command.
::trace add variable :x unset "[list catch [list ::nx::Object destroy] msg1]; [list catch [list ::nx::Class destroy] msg2]; set ::MSG \[list \$msg1 \$msg2\];#"
}
}
? {$i eval {info exists ::MSG}} 0
$i eval {::nsf::finalize -keepvars}
? {$i eval {info exists ::MSG}} 1
? {$i eval {set ::MSG}} [list "cannot destroy base class ::nx::Object" "cannot destroy base class ::nx::Class"]
interp delete $i
unset i
}
nx::test case unset-traces-during-cleanup-with-reset {
#
# Check for leaks ...
#
global i
set i [interp create]
$i eval {
package req nx
nx::Object create o {
set :x 100
# The following line is tricky: the trailing ";#"
# is used to trim the undesirable extra arguments
# from the trace command.
::trace add variable :x unset "[list ::nsf::var::set [self] x ${:x}];#"
}
}
? {$i eval {::nsf::object::exists ::o}} 1
? {$i eval {info commands ::o}} ::o
$i eval {::nsf::finalize -keepvars}
? {$i eval {info commands ::o}} ""
interp delete $i
unset i
}
#
# Test on UnsetTracedVars() under revived vars & unset traces
# for per-object variable tables (no namespace involved).
#
nx::test case unset-traces-during-cleanup-with-reset-2 {
global i
set i [interp create]
$i eval {
package req nx
set ::called(reset) 0
proc ::reset {obj var value} {
#
# ... revive object variable 'x' and add yet another unset trace
#
::nsf::var::set $obj $var $value
$obj eval [list ::trace add variable :$var unset \
"incr ::called(reset); ::reset $obj $var $value; #"]
}
nx::Object create ::o
::reset ::o x 100
}
? {$i eval {::nsf::object::exists ::o}} 1
? {$i eval {info commands ::o}} ::o
? {$i eval {namespace exists ::o}} 0
? {$i eval {set ::called(reset)}} 0
$i eval {::nsf::finalize -keepvars}
? {$i eval {info commands ::o}} ""
? {$i eval {namespace exists ::o}} 0
# ? {$i eval {set ::called(reset)}} 1; # unset trace, also re-registered, is only called once!
interp delete $i
unset i
}
#
# Test on UnsetTracedVars() under revived vars & unset traces
# for namespaced variable tables.
#
nx::test case unset-traces-during-cleanup-with-reset-3 {
global i
set i [interp create]
$i eval {
package req nx
set ::called(reset) 0
proc ::reset {obj var value} {
#
# ... revive object variable 'x' and add yet another unset trace
#
::set ${obj}::$var $value
$obj eval [list ::trace add variable ${obj}::$var unset \
"incr ::called(reset); ::reset $obj $var $value; #"]
}
nx::Object create ::o {
:require namespace
}
::reset ::o x 100
}
? {$i eval {::nsf::object::exists ::o}} 1
? {$i eval {info commands ::o}} ::o
? {$i eval {namespace exists ::o}} 1
? {$i eval {set ::called(reset)}} 0
$i eval {::nsf::finalize -keepvars}
? {$i eval {info commands ::o}} ""
? {$i eval {namespace exists ::o}} 0
? {$i eval {set ::called(reset)}} 1; # unset trace, also re-registered, is only called once!
interp delete $i
unset i
}
#
# Exercise renaming of cmds which are used as methods
#
nx::test case rename-cached-method {
# Create a class with a namespace
nx::Class create A {:public object method foo args {}}
#
# Add a proc named "new" to the namespace of the class.
# This is not recommended, but we can't avoid it.
#
proc ::A::new {} { return "something from A" }
#
# Call the proc via the method interface. After the call the cmd is
# cached in the Tcl_Obj "new".
#
? {A new} "something from A"
#
# Delete the proc. The rename command has to take care, that the
# cached cmd has to be invalidated.
#
rename ::A::new ""
#
# We expect that the original method works again.
#
? {string match ::nsf::__#* [A new]} 1
#
# Now try the same with the internal namespace from nsf. Messing
# around there is even less wanted, but still, we can't avoid this.
# We make first a backup of the method.
#
rename ::nsf::classes::nx::Class::new ::nsf::classes::nx::Class::new.orig
proc ::nsf::classes::nx::Class::new {} { return "something" }
? {A new} "something"
#
# Delete the proc and call "new" again
#
rename ::nsf::classes::nx::Class::new ""
? {A new} "method 'new' unknown for ::A; in order to create an instance of class ::A, consider using '::A create new ?...?'"
#
# Restore the original state
#
rename ::nsf::classes::nx::Class::new.orig ::nsf::classes::nx::Class::new
#
# We expect that the original method works again.
#
? {string match ::nsf::__#* [A new]} 1
}
#
# Create a cyclical class dependency and delete it manually
#
nx::test case cyclical-dependency {
nx::Object create o1
? {nx::Class create o1::C} ::o1::C
? {nsf::relation::set o1 class o1::C} ::o1::C
o1 destroy
}
#
# Create a cyclical class dependency and let it be deleted on
# object-system-cleanup
#
nx::Object create o1
nx::Class create o1::C
nsf::relation::set o1 class o1::C
#
# Create a cyclical superclass dependency and delete it manually
#
nx::test case cyclical-dependency {
nx::Class create C
nx::Class create C::*
? {nsf::relation::set C superclass {C::* nx::Object}} ""
C destroy
}
#
# Create a cyclical superclass dependency and let it be deleted on
# object-system-cleanup
#
nx::Class create C
nx::Class create C::*
nsf::relation::set C superclass {C::* nx::Object}
puts "==== EXIT [info script]"
#
# Local variables:
# mode: tcl
# tcl-indent-level: 2
# indent-tabs-mode: nil
# End:
|