Can t Continue Outside a When Block

Front page | perl.perl5.porters | Postings from December 2018

[perl #133741] Can't "continue" outside a when block -- make compiletime

Thread Next

From:

" Ed Avis "

Date:

December 28, 2018 09:44

Subject:

[perl #133741] Can't "continue" outside a when block -- make compiletime

Message ID:

rt-4.0.24-11699-1545990274-929.133741-75-0@perl.org

# New Ticket Created by  "Ed Avis"  # Please include the string:  [perl #133741] # in the subject line of all future correspondence about this issue.  # <URL: https://rt.perl.org/Ticket/Display.html?id=133741 >    This is a bug report for perl from eda@waniasset.com, generated with the help of perlbug 1.40 running under perl 5.22.2.   ----------------------------------------------------------------- [Please describe your issue here]  The continue keyword in Perl can only be used inside a when-block. There is an error if you try to use it outside, but that error is only when the statement is reached at run time.  This is a small wishlist bug to provide the diagnostic at compile time when possible.  % perl -E 'continue' Can't "continue" outside a when block at -e line 1. % perl -E 'if (0) { continue }' (no error, but it would be good to have one)  This is particularly useful for muddle-headed programmers who switch between C, Java, etc. and Perl programming.  They meant to say next instead of continue.  By catching the error at compile time rather than waiting until (and if) it is reached at run time, you speed up their re-education.  When parsing, Perl should check that continue statements are syntactically contained within when.  [Please do not change anything below this line] ----------------------------------------------------------------- --- Flags:     category=core     severity=wishlist --- Site configuration information for perl 5.22.2:  Configured by Red Hat, Inc. at Fri Nov  4 14:35:02 UTC 2016.  Summary of my perl5 (revision 5 version 22 subversion 2) configuration:       Platform:     osname=linux, osvers=4.7.9-200.fc24.x86_64, archname=x86_64-linux-thread-multi     uname='linux buildvm-12.phx2.fedoraproject.org 4.7.9-200.fc24.x86_64 #1 smp thu oct 20 14:26:16 utc 2016 x86_64 x86_64 x86_64 gnulinux '     config_args='-des -Doptimize=none -Dccflags=-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches  -m64 -mtune=generic -Dldflags=-Wl,-z,relro  -Dccdlflags=-Wl,--enable-new-dtags -Wl,-z,relro  -Dlddlflags=-shared -Wl,-z,relro  -Dshrpdir=/usr/lib64 -DDEBUGGING=-g -Dversion=5.22.2 -Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dprefix=/usr -Dvendorprefix=/usr -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl5 -Dsitearch=/usr/local/lib64/perl5 -Dprivlib=/usr/share/perl5 -Dvendorlib=/usr/share/perl5/vendor_perl -Darchlib=/usr/lib64/perl5 -Dvendorarch=/usr/lib64/perl5/vendor_perl -Darchname=x86_64-linux-thread-multi -Dlibpth=/usr/local/lib64 /lib64 /usr/lib64 -Duseshrplib -Dusethreads -Duseithreads -Dusedtrace=/usr/bin/dtrace -Duselargefiles -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallu  srbinperl=n -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr -Dd_gethostent_r_proto -Ud_endhostent_r_proto -Ud_sethostent_r_proto -Ud_endprotoent_r_proto -Ud_setprotoent_r_proto -Ud_endservent_r_proto -Ud_setservent_r_proto -Dscriptdir=/usr/bin -Dusesitecustomize'     hint=recommended, useposix=true, d_sigaction=define     useithreads=define, usemultiplicity=define     use64bitint=define, use64bitall=define, uselongdouble=undef     usemymalloc=n, bincompat5005=undef   Compiler:     cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fwrapv -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',     optimize='  -g',     cppflags='-D_REENTRANT -D_GNU_SOURCE -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fwrapv -fno-strict-aliasing -I/usr/local/include'     ccversion='', gccversion='5.3.1 20160406 (Red Hat 5.3.1-6)', gccosandvers=''     intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678, doublekind=3     d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16, longdblkind=3     ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8     alignbytes=8, prototype=define   Linker and Libraries:     ld='gcc', ldflags ='-Wl,-z,relro  -fstack-protector-strong -L/usr/local/lib'     libpth=/usr/local/lib64 /lib64 /usr/lib64 /usr/local/lib /usr/lib /lib/../lib64 /usr/lib/../lib64 /lib     libs=-lpthread -lresolv -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc -lgdbm_compat     perllibs=-lpthread -lresolv -lnsl -ldl -lm -lcrypt -lutil -lc     libc=libc-2.22.so, so=so, useshrplib=true, libperl=libperl.so     gnulibc_version='2.22'   Dynamic Linking:     dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,--enable-new-dtags -Wl,-z,relro '     cccdlflags='-fPIC', lddlflags='-shared -Wl,-z,relro  -L/usr/local/lib -fstack-protector-strong'  Locally applied patches:     Fedora Patch1: Removes date check, Fedora/RHEL specific     Fedora Patch3: support for libdir64     Fedora Patch4: use libresolv instead of libbind     Fedora Patch5: USE_MM_LD_RUN_PATH     Fedora Patch6: Skip hostname tests, due to builders not being network capable     Fedora Patch7: Dont run one io test due to random builder failures     Fedora Patch15: Define SONAME for libperl.so     Fedora Patch16: Install libperl.so to -Dshrpdir value     Fedora Patch22: Document Math::BigInt::CalcEmu requires Math::BigInt (CPAN RT#85015)     Fedora Patch26: Make *DBM_File desctructors thread-safe (RT#61912)     Fedora Patch27: Make PadlistNAMES() lvalue again (CPAN RT#101063)     Fedora Patch28: Make magic vtable writable as a work-around for Coro (CPAN RT#101063)     Fedora Patch29: Fix duplicating PerlIO::encoding when spawning threads (RT#31923)     Fedora Patch30: Do not let XSLoader load relative paths (CVE-2016-6185)     Fedora Patch31: Avoid loading optional modules from default . (CVE-2016-1238)     Fedora Patch32: Fix a crash in lexical scope warnings (RT#128597)     Fedora Patch33: Do not mangle errno from failed socket calls (RT#128316)     Fedora Patch34: Fix crash in "evalbytes S" (RT#129196)     Fedora Patch35: Fix crash in "evalbytes S" (RT#129196)     Fedora Patch36: Fix crash in "evalbytes S" (RT#129196)     Fedora Patch37: Fix crash in splice (RT#129164, RT#129166, RT#129167)     Fedora Patch38: Fix string overrun in Perl_gv_fetchmethod_pvn_flags (RT#129267)     Fedora Patch39: Fix string overrun in Perl_gv_fetchmethod_pvn_flags (RT#129267)     Fedora Patch40: Fix string overrun in Perl_gv_fetchmethod_pvn_flags (RT#129267)     Fedora Patch41: Fix string overrun in Perl_gv_fetchmethod_pvn_flags (RT#129267)     Fedora Patch42: Fix string overrun in Perl_gv_fetchmethod_pvn_flags (RT#129267)     Fedora Patch43: Fix crash when matching UTF-8 string with non-UTF-8 substrings (RT#129350)     Fedora Patch44: Fix parsing perl options in shell bang line (RT#129336)     Fedora Patch45: Fix firstchar bitmap under UTF-8 with prefix optimization (RT#129950)     Fedora Patch46: Avoid infinite loop in h2xs tool if enum and type have the same name (RT130001)     Fedora Patch47: Fix stack handling when calling chdir without an argument (RT#129130)     Fedora Patch200: Link XS modules to libperl.so with EU::CBuilder on Linux     Fedora Patch201: Link XS modules to libperl.so with EU::MM on Linux  --- @INC for perl 5.22.2:     /home/eda/lib64/perl5/     /usr/local/lib64/perl5     /usr/local/share/perl5     /usr/lib64/perl5/vendor_perl     /usr/share/perl5/vendor_perl     /usr/lib64/perl5     /usr/share/perl5  --- Environment for perl 5.22.2:     HOME=/home/eda     LANG=en_GB.UTF-8     LANGUAGE (unset)     LC_COLLATE=C     LC_CTYPE=en_GB.UTF-8     LC_MESSAGES=en_GB.UTF-8     LC_MONETARY=en_GB.UTF-8     LC_NUMERIC=en_GB.UTF-8     LC_TIME=en_GB.UTF-8     LD_LIBRARY_PATH (unset)     LOGDIR (unset)     PATH=/home/eda/bin:/home/eda/bin:/usr/local/bin:/usr/bin:/sbin:/usr/sbin:/sbin:/usr/sbin     PERL5LIB=/home/eda/lib64/perl5/     PERL_BADLANG (unset)     SHELL=/bin/bash      

Thread Next

• [perl #133741] Can't "continue" outside a when block -- make compiletime by " Ed Avis "
• Re: [perl #133741] Can't "continue" outside a when block -- makecompile time by Leon Timmermans
• [perl #133741] Can't "continue" outside a when block -- make compiletime by Ed Avis via RT

soteloanall1968.blogspot.com

Source: https://www.nntp.perl.org/group/perl.perl5.porters/2018/12/msg253247.html

Share this post