Consider the following short program that defines a class and an instance
method and uses them:
.TraceObject~option='N'
.test~clzHi -- class method will be invoked
.test~new~hi -- instance method will be invoked
::class test
::method clzHi class
say self": clzHi, scope:" .context~executable~scope
::method hi
say self": Hi, scope:" .context~executable~scope
::options trace all
Running it yields the following output:
1 *-* .TraceObject~option='N'
2 *-* .test~clzHi -- class method will be invoked
*>I> Method "CLZHI" with scope "TEST" in package
"G:\test\orx\trace\examples4docs\hmm\test_scope.rex".*
7 *-* say self": clzHi, scope:" .context~executable~scope
The TEST class: clzHi, scope: The TEST class
3 *-* .test~new~hi -- instance method will be invoked
*>I> Method "HI" with scope "TEST" in package
"G:\test\orx\trace\examples4docs\hmm\test_scope.rex".*
9 *-* say self": Hi, scope:" .context~executable~scope
a TEST: Hi, scope: The TEST class
The ">I>" trace line hints that both methods share the same scope "TEST" which is not the case as
the class method and the instance method should have different scopes, which is also indicated by
the following variant (full debug information):
.TraceObject~option='*F*'
.test~clzHi -- class method will be invoked
.test~new~hi -- instance method will be invoked
::class test
::method clzHi class
say self": clzHi, scope:" .context~executable~scope
::method hi
say self": Hi, scope:" .context~executable~scope
::options trace all
which yields the following output:
1 *-* .TraceObject~option='F'
[R1 T1 I1 ] 2 *-* .test~clzHi -- class method
will be invoked
[R1 T1 I2 G*A1* L0 ]*>I> Method "CLZHI" with scope "TEST" in
package
"G:\test\orx\trace\examples4docs\hmm\test_scope.rex".*
[R1 T1 I2 G*A1* L1 *] 7 *-* say self": clzHi, scope:"
.context~executable~scope
The TEST class: clzHi, scope: The TEST class
[R1 T1 I1 ] 3 *-* .test~new~hi -- instance
method will be invoked
[R1 T1 I3 G*A2* L0 ]*>I> Method "HI" with scope "TEST" in package
"G:\test\orx\trace\examples4docs\hmm\test_scope.rex".*
[R1 T1 I3 G*A2* L1 *] 9 *-* say self": Hi, scope:"
.context~executable~scope
a TEST: Hi, scope: The TEST class
As can be seen the attribute (object variable) pool is different as the scope is really different
("A1" versus "A2").
Method's scope() method returns the same class object. The TRACE ">I>" output also does not allow
for differentiating between the two scopes.
Maybe the ">I>" output could add something like '... scope "TEST" /at the class level /...' in the
case of a class method?
Also, it would be helpful to learn whether from a method object (if .context~executable~isA(.method)
then...) whether its scope is at the class level (the method is a class method) or at the instance
level. Maybe some method isClassMethod or so?
Would that be a feasible extension?
---rony
_______________________________________________
Oorexx-devel mailing list
Oorexx-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/oorexx-devel
