* src/eval.c (Finternal_delete_indirect_variable): Add function. * lisp/loadhist.el (loadhist-unload-element): Use it for variable aliases. * test/src/eval-tests.el (eval-tests--internal-delete-indirect-variable): Test function `internal-delete-indirect-variable'. * test/lisp/loadhist-tests.el (loadhist-test-unload-feature-alias): * test/lisp/loadhist-resources/loadhist--alias.el: Test unloading of features that define variable aliases. (Bug#76748)
Run "TZ=UTC0 admin/update-copyright".
This fixes bugs that crashed Emacs when the Lisp interpreter was fed bad code. * src/eval.c (FletX, Flet, internal_lisp_condition_case) (funcall_lambda): Hoist symbol-with-pos elimination and type checks to a dominating position for efficiency. This also plugs at least two typing holes. (Mea culpa.) * test/src/eval-tests.el (eval-bad-specbind): New regression test.
Bug#66117
Make sure we build the (ERROR-SYMBOL . ERROR-DATA) object only once when signaling an error, so that its `eq` identity can be used. It also gets us a tiny bit closer to having real "error objects" like in most other current programming languages. * src/eval.c (maybe_call_debugger): Change arglist to receive the error object instead of receiving the signal and the data separately. (signal_or_quit): Build the error object right at the beginning so it stays `eq` to itself. Rename the `keyboard_quit` arg to `continuable` so say what it does rather than what it's used for. (signal_quit_p): Change arg to be the error object rather than just the error-symbol. * src/keyboard.c (cmd_error_internal, menu_item_eval_property_1): Adjust calls to `signal_quit_p` accordingly. * test/src/eval-tests.el (eval-tests--error-id): New test.
AFAIK, this provides the same semantics as Common Lisp's `handler-bind`, modulo the differences about how error objects and conditions are represented. * lisp/subr.el (handler-bind): New macro. * src/eval.c (pop_handler): New function. (Fhandler_Bind_1): New function. (signal_or_quit): Handle new handlertypes `HANDLER` and `SKIP_CONDITIONS`. (find_handler_clause): Simplify. (syms_of_eval): Defsubr `Fhandler_bind_1`. * doc/lispref/control.texi (Handling Errors): Add `handler-bind`. * test/src/eval-tests.el (eval-tests--handler-bind): New test. * lisp/emacs-lisp/lisp-mode.el (lisp-font-lock-keywords): Move 'handler-bind' from CL-only to generic Lisp. (handler-bind): Remove indentation setting, it now lives in the macro definition.
dc4e6b13296 ; Update copyright years in more files 64b37776318 ; Run set-copyright from admin.el 8e1c56ae467 ; Add 2024 to copyright years # Conflicts: # doc/misc/modus-themes.org # doc/misc/texinfo.tex # etc/NEWS # etc/refcards/ru-refcard.tex # etc/themes/modus-operandi-theme.el # etc/themes/modus-themes.el # etc/themes/modus-vivendi-theme.el # lib/alloca.in.h # lib/binary-io.h # lib/c-ctype.h # lib/c-strcasecmp.c # lib/c-strncasecmp.c # lib/careadlinkat.c # lib/cloexec.c # lib/close-stream.c # lib/diffseq.h # lib/dup2.c # lib/filemode.h # lib/fpending.c # lib/fpending.h # lib/fsusage.c # lib/getgroups.c # lib/getloadavg.c # lib/gettext.h # lib/gettime.c # lib/gettimeofday.c # lib/group-member.c # lib/malloc.c # lib/md5-stream.c # lib/md5.c # lib/md5.h # lib/memmem.c # lib/memrchr.c # lib/nanosleep.c # lib/save-cwd.h # lib/sha1.c # lib/sig2str.c # lib/stdlib.in.h # lib/strtoimax.c # lib/strtol.c # lib/strtoll.c # lib/time_r.c # lib/xalloc-oversized.h # lisp/auth-source-pass.el # lisp/emacs-lisp/lisp-mnt.el # lisp/emacs-lisp/timer.el # lisp/info-look.el # lisp/jit-lock.el # lisp/loadhist.el # lisp/mail/rmail.el # lisp/net/ntlm.el # lisp/net/webjump.el # lisp/progmodes/asm-mode.el # lisp/progmodes/project.el # lisp/progmodes/sh-script.el # lisp/textmodes/flyspell.el # lisp/textmodes/reftex-toc.el # lisp/textmodes/reftex.el # lisp/textmodes/tex-mode.el # lisp/url/url-gw.el # m4/alloca.m4 # m4/clock_time.m4 # m4/d-type.m4 # m4/dirent_h.m4 # m4/dup2.m4 # m4/euidaccess.m4 # m4/fchmodat.m4 # m4/filemode.m4 # m4/fsusage.m4 # m4/getgroups.m4 # m4/getloadavg.m4 # m4/getrandom.m4 # m4/gettime.m4 # m4/gettimeofday.m4 # m4/gnulib-common.m4 # m4/group-member.m4 # m4/inttypes.m4 # m4/malloc.m4 # m4/manywarnings.m4 # m4/mempcpy.m4 # m4/memrchr.m4 # m4/mkostemp.m4 # m4/mktime.m4 # m4/nproc.m4 # m4/nstrftime.m4 # m4/pathmax.m4 # m4/pipe2.m4 # m4/pselect.m4 # m4/pthread_sigmask.m4 # m4/readlink.m4 # m4/realloc.m4 # m4/sig2str.m4 # m4/ssize_t.m4 # m4/stat-time.m4 # m4/stddef_h.m4 # m4/stdint.m4 # m4/stdio_h.m4 # m4/stdlib_h.m4 # m4/stpcpy.m4 # m4/strnlen.m4 # m4/strtoimax.m4 # m4/strtoll.m4 # m4/time_h.m4 # m4/timegm.m4 # m4/timer_time.m4 # m4/timespec.m4 # m4/unistd_h.m4 # m4/warnings.m4 # nt/configure.bat # nt/preprep.c # test/lisp/register-tests.el
* test/src/eval-tests.el (eval-tests/default-value): New test.
Make `defvaralias` signal an error upon attempts to create variable alias cycles. This detects errors earlier and makes the alias traversal during execution simpler and faster since no cycle detection is needed elsewhere. Now variable and function aliases are handled identically in these respects. * src/lisp.h (indirect_variable): Remove declaration. * src/data.c (indirect_variable): Remove. (Findirect_variable): Update doc string. Simplify alias resolution. (Fboundp, find_symbol_value, set_internal, default_value) (set_default_internal, Fmake_variable_buffer_local) (Fmake_local_variable, Fkill_local_variable, Flocal_variable_p) (Flocal_variable_if_set_p, Fvariable_binding_locus): * src/buffer.c (buffer_local_value): * src/eval.c (specbind): Simplify variable alias resolution. (Fdefvaralias): Update doc string. Check for cycles. * doc/lispref/variables.texi (Variable Aliases): Mention that `defvaralias` can signal `cyclic-variable-indirection` but `indirect-variable` cannot. * etc/NEWS: Announce the change. * test/src/eval-tests.el (eval-tests-defvaralias): New test.