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Debugging Issue #3955

@EmilKrobot

Description

@EmilKrobot

I have this little code in my Block.pm
sub cmvec:lvalue {
vec($canmove, $_[0], 1);
}
When I am attempting to run a script with Komodo debbuger, I always get this error message "Can't modify non-lvalue subroutine call of &DB::sub at C:/Workspace/Sokoban/lib/Games/Sokoban/Block.pm line 146."

Where line #146 in Block.pm is "cmvec($_) = 1 foreach ($man, @{ $bags; });"
Komodo IDE
Komodo Version 12:1
Windows 11 Pro 64-bit AMD64 x86_64-w64 build 22000.795

Summary of my perl5 (revision 5 version 32 subversion 1) configuration:

Platform:
osname=MSWin32
osvers=10.0.19042.746
archname=MSWin32-x64-multi-thread
uname='Win32 strawberry-perl 5.32.1.1 #1 Sun Jan 24 15:00:15 2021 x64'
config_args='undef'
hint=recommended
useposix=true
d_sigaction=undef
useithreads=define
usemultiplicity=define
use64bitint=define
use64bitall=undef
uselongdouble=undef
usemymalloc=n
default_inc_excludes_dot=define
bincompat5005=undef
Compiler:
cc='gcc'
ccflags =' -DWIN32 -DWIN64 -D__USE_MINGW_ANSI_STDIO -DPERL_TEXTMODE_SCRIPTS -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -fwrapv -fno-strict-aliasing -mms-bitfields'
optimize='-s -O2'
cppflags='-DWIN32'
ccversion=''
gccversion='8.3.0'
gccosandvers=''
intsize=4
longsize=4
ptrsize=8
doublesize=8
byteorder=12345678
doublekind=3
d_longlong=define
longlongsize=8
d_longdbl=define
longdblsize=16
longdblkind=3
ivtype='long long'
ivsize=8
nvtype='double'
nvsize=8
Off_t='long long'
lseeksize=8
alignbytes=8
prototype=define
Linker and Libraries:
ld='g++'
ldflags ='-s -L"C:\STRAWB1\perl\lib\CORE" -L"C:\STRAWB1\c\lib"'
libpth=C:\STRAWB1\c\lib C:\STRAWB1\c\x86_64-w64-mingw32\lib C:\STRAWB1\c\lib\gcc\x86_64-w64-mingw32\8.3.0
libs= -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion -lodbc32 -lodbccp32 -lcomctl32
perllibs= -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion -lodbc32 -lodbccp32 -lcomctl32
libc=
so=dll
useshrplib=true
libperl=libperl532.a
gnulibc_version=''
Dynamic Linking:
dlsrc=dl_win32.xs
dlext=xs.dll
d_dlsymun=undef
ccdlflags=' '
cccdlflags=' '
lddlflags='-mdll -s -L"C:\STRAWB
1\perl\lib\CORE" -L"C:\STRAWB~1\c\lib"'

Characteristics of this binary (from libperl):
Compile-time options:
HAS_TIMES
HAVE_INTERP_INTERN
MULTIPLICITY
PERLIO_LAYERS
PERL_COPY_ON_WRITE
PERL_DONT_CREATE_GVSV
PERL_IMPLICIT_CONTEXT
PERL_IMPLICIT_SYS
PERL_MALLOC_WRAP
PERL_OP_PARENT
PERL_PRESERVE_IVUV
USE_64_BIT_INT
USE_ITHREADS
USE_LARGE_FILES
USE_LOCALE
USE_LOCALE_COLLATE
USE_LOCALE_CTYPE
USE_LOCALE_NUMERIC
USE_LOCALE_TIME
USE_PERLIO
USE_PERL_ATOF
Built under MSWin32
Compiled at Jan 24 2021 15:05:42
%ENV:
PERL5LIB="C:/Workspace/Sokoban/lib"
@inc:
C:/Workspace/Sokoban/lib
C:/Strawberry/perl/site/lib
C:/Strawberry/perl/vendor/lib
C:/Strawberry/perl/lib

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