[Octave-bug-tracker] [bug #52851] parse error at command line or in scripts "duplicate subfunction or nested function name"

[Marshall]

URL:
  <http://savannah.gnu.org/bugs/?52851>

                 Summary: parse error at command line or in scripts "duplicate
subfunction or nested function name"
                 Project: GNU Octave
            Submitted by: marsian
            Submitted on: Wed 10 Jan 2018 02:41:37 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: Marsian
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

In running some scripts in dev octave that worked before in 4.2.1, I ran into
a new parse error: "duplicate subfunction or nested function name". I've
reduced my code to a couple examples, with increasing complexity in order to
show both the minimal example of what doesn't work but used to, and to show
closer to my current usage that should still work given any potential fixes to
this problem. 

All of these work in 4.2.1, whether copied and pasted directly in the command
line, (or highlight and F9 in a script), or whether they are in a script and
the whole script is run (F5). None of these work in the dev version on F5, but
some work if the selection is executed (F9 or copy/paste).

The a=1 in each is only there in the case it is ran as a script (F5) to
differentiate it from a function (e.g. avoid the "warning: function name ...
does not agree with function filename...'".


a=1;%script identifier
function computation()
    disp('compute 1')
endfunction
computation()

function computation()
    disp('compute 2')
endfunction
computation()




%doesn't work with either F5 or F9
if  true
    function computation()
        disp('compute 1')
    endfunction
    computation()
else
    function computation()
        disp('compute 2')
    endfunction
    computation()
end




a=1;%script identifier
function caller(fun)
    fun()
endfunction
function computation()
    disp('compute 1')
endfunction

caller(@computation)

function computation()
    disp('compute 2')
endfunction

caller(@computation)




a=1;%script identifier
function caller(fun,num)
    persistent funarray
    if isempty(fun)
        funarray(num).fun();
    else
        if isempty(funarray)
            funarray(1).fun = fun;
        else
            funarray(num).fun = fun;
        end
    end
endfunction

function computation()
    disp('compute 1')
endfunction

caller(@computation,1)
caller([],1)

function computation()
    disp('compute 2')
endfunction
caller(@computation,2)
caller([],2)
caller([],1)


These all work in 4.2.1 both in windows and linux, but not in either in
mxe-octave dev.







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