Change `function` so that when evaluating #'(lambda ...)
we return an object of type `interpreted-function` rather than
a list starting with one of `lambda` or `closure`.
The new type reuses the existing PVEC_CLOSURE (nee PVEC_COMPILED)
tag and tries to align the corresponding elements:
- the arglist, the docstring, and the interactive-form go in the
same slots as for byte-code functions.
- the body of the function goes in the slot used for the bytecode string.
- the lexical context goes in the slot used for the constants of
bytecoded functions.
The first point above means that `help-function-arglist`,
`documentation`, and `interactive-form`s don't need to
distinguish interpreted and bytecode functions any more.
Main benefits of the change:
- We can now reliably distinguish a list from a function value.
- `cl-defmethod` can dispatch on `interactive-function` and `closure`.
Dispatch on `function` also works now for interpreted functions but still
won't work for functions represented as lists or as symbols, of course.
- Function values are now self-evaluating. That was alrready the case
when byte-compiled, but not when interpreted since
(eval '(closure ...)) signals a void-function error.
That also avoids false-positive warnings about "don't quote your lambdas"
when doing things like `(mapcar ',func ...)`.
* src/eval.c (Fmake_interpreted_closure): New function.
(Ffunction): Use it and change calling convention of
`Vinternal_make_interpreted_closure_function`.
(FUNCTIONP, Fcommandp, eval_sub, funcall_general, funcall_lambda)
(Ffunc_arity, lambda_arity): Simplify.
(funcall_lambda): Adjust to new representation.
(syms_of_eval): `defsubr` the new function. Remove definition of `Qclosure`.
* lisp/emacs-lisp/cconv.el (cconv-make-interpreted-closure):
Change calling convention and use `make-interpreted-closure`.
* src/data.c (Fcl_type_of): Distinguish `byte-code-function`s from
`interpreted-function`s.
(Fclosurep, finterpreted_function_p): New functions.
(Fbyte_code_function_p): Don't be confused by `interpreted-function`s.
(Finteractive_form, Fcommand_modes): Simplify.
(syms_of_data): Define new type symbols and `defsubr` the two
new functions.
* lisp/emacs-lisp/cl-print.el (cl-print-object) <interpreted-function>:
New method.
* lisp/emacs-lisp/oclosure.el (oclosure): Refine the parent
to be `closure`.
(oclosure--fix-type, oclosure-type): Simplify.
(oclosure--copy, oclosure--get, oclosure--set): Adjust to
new representation.
* src/callint.c (Fcall_interactively): Adjust to new representation.
* src/lread.c (bytecode_from_rev_list):
* lisp/simple.el (function-documentation):
* lisp/help.el (help-function-arglist): Remove the old `closure` case
and adjust the byte-code case so it handles `interpreted-function`s.
* lisp/emacs-lisp/cl-preloaded.el (closure): New type.
(byte-code-function): Add it as a parent.
(interpreted-function): Adjust parent (the type itself was already
added earlier by accident).
* lisp/emacs-lisp/bytecomp.el (byte-compile--reify-function): Adjust to
new representation.
(byte-compile): Use `interpreted-function-p`.
* lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand): Adjust to
new representation.
(side-effect-free-fns): Add `interpreted-function-p` and `closurep`.
* src/profiler.c (trace_hash, ffunction_equal): Simplify.
* lisp/profiler.el (profiler-function-equal): Simplify.
* lisp/emacs-lisp/nadvice.el (advice--interactive-form-1):
Use `interpreted-function-p`; adjust to new representation; and take
advantage of the fact that function values are now self-evaluating.
* lisp/emacs-lisp/lisp-mode.el (closure):
Remove `lisp-indent-function` property.
* lisp/emacs-lisp/disass.el (disassemble-internal): Adjust to
new representation.
* lisp/emacs-lisp/edebug.el (edebug--strip-instrumentation):
Use `interpreted-function-p`.
* lisp/emacs-lisp/comp-common.el (comp-known-type-specifiers):
Add `closurep` and `interpreted-function-p`.
* test/lisp/help-fns-tests.el (help-fns-test-lisp-defun): Adjust to
more precise type info in `describe-function`.
* test/lisp/erc/resources/erc-d/erc-d-tests.el (erc-d--render-entries):
Use `interpreted-function-p`.
* test/lisp/emacs-lisp/macroexp-resources/vk.el (vk-f4, vk-f5):
Don't hardcode function values.
* doc/lispref/functions.texi (Anonymous Functions): Don't suggest that
function values are lists. Reword "self-quoting" to reflect the
fact that #' doesn't return the exact same object. Update examples
with the new shape of the return value.
* doc/lispref/variables.texi (Lexical Binding):
* doc/lispref/lists.texi (Rearrangement):
* doc/lispref/control.texi (Handling Errors): Update examples to reflect
new representation of function values.
* lisp/emacs-lisp/pp.el (pp-fill): Don't cut between `#` and `(`.
* test/lisp/help-fns-tests.el (help-fns-test-built-in)
(help-fns-test-interactive-built-in, help-fns-test-lisp-defun)
(help-fns-test-lisp-defsubst):
* test/src/emacs-module-tests.el (module/describe-function-1):
Adjust tests to new wording in `describe-function`.
Make `fset` and `defalias` signal an error on attempts to create
circular alias chains. This is more effective, efficient and
convenient than permitting alias loops to be created and trying to
detect them at run time each time a function is called, which is what
we have been doing until now, badly.
* lisp/help-fns.el (help-fns--analyze-function):
Don't pass obsolete argument.
* lisp/subr.el (function-alias-p):
* src/data.c (indirect_function, Findirect_function): Simplify.
Now error-free, second argument obsolete.
(Ffset): Detect loops.
* test/lisp/help-fns-tests.el (help-fns--analyze-function-recursive):
* test/lisp/subr-tests.el (test-alias-p):
Adapt tests.
* test/src/data-tests.el (data-tests-fset, data-tests-defalias): New.
* doc/lispref/eval.texi (Function Indirection):
* doc/lispref/functions.texi (Defining Functions, Function Cells):
Update manual.
* etc/NEWS: Announce.
* test/lisp/help-fns-tests.el (help-fns-test-lisp-macro)
(help-fns-test-lisp-defsubst):
* test/lisp/emacs-lisp/cl-generic-tests.el
(cl-generic-tests--method-files--finds-methods): Adjust test so
that they work in a symlinked environment (bug#43004).
(cl-generic-tests--method-files--finds-methods): Use file-truename
so that this works in a symlinked environment (bug#43004).
* lisp/help-fns.el (find-lisp-object-file-name): Check for 'defvar
argument before searching for an internal variable (Bug#24697).
* test/lisp/help-fns-tests.el: New tests.
* lisp/help-fns.el (describe-keymap): Provide a reasonable
default for prompt. (Bug#30660)
(help-fns-find-keymap-name)
(help-fns--most-relevant-active-keymap): New functions.
* test/lisp/help-fns-tests.el
(help-fns-test-find-keymap-name): New test.
* lisp/help-fns.el (describe-keymap): New command to show key bindings
for a given keymap. (Bug#30660)
* doc/emacs/help.texi (Misc Help): Document the new command.
* doc/lispref/keymaps.texi (Scanning Keymaps): Add a cross-reference
to the above documentation.
* etc/NEWS: Announce the new command.
* test/lisp/help-fns-tests.el (help-fns-test-describe-keymap/symbol)
(help-fns-test-describe-keymap/value)
(help-fns-test-describe-keymap/not-keymap)
(help-fns-test-describe-keymap/let-bound)
(help-fns-test-describe-keymap/dynamically-bound-no-file): New tests.
Co-authored-by: Drew Adams <drew.adams@oracle.com>
Restore lines saying "Maintainer: emacs-devel@gnu.org" when there is
no special maintainer for a file. Although this wasn't documented
it was common practice and removing the lines didn't have consensus.
63b04c11d5 Fix copyright years by hand
5c7dd8a783 Update copyright year to 2018
220a9ecba1 Merge from Gnulib
312c565566 Don't add empty keyboard macro to macro ring (Bug#24992)
39ca289a7a Allow customization of decoding of "man" command
f8240815ea * etc/NEWS: Add security consideration note on passphrase ...
0c78822c70 Fix subtle problem with scroll-down when scroll-margin is ...
acd289c5a4 Fix problems with indexing in User manual
b240c7846b * lisp/help.el (describe-key): Only (copy-sequence elt) wh...
e879a5444a * src/buffer.c (Frestore_buffer_modified_p): Fix bug#29846
81b1028b63 Improve documentation of 'inhibit-modification-hooks' and ...
7175496d7a Fix doc string of 'enable-recursive-minibuffers'
5b38406491 Fix documentation of delsel and of killing text
# Conflicts:
# etc/NEWS
# etc/refcards/ru-refcard.tex
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
* lisp/help-fns.el (describe-function-1): Check for aliases
defined with (defalias alias (symbol-function built-in)) (Bug#23887).
* test/lisp/help-fns-tests.el (help-fns-test-bug23887): Untag as
failing this test.
