Mattias Engdegård db3fea2e5c Detect and prevent function alias loops in fset and defalias ... 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.		2023-02-21 10:42:00 +01:00
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emacs	Merge from origin/emacs-29	2023-02-21 10:28:34 +01:00
lispintro	; Add 2023 to copyright years.	2023-01-01 05:31:12 -05:00
lispref	Detect and prevent function alias loops in fset and defalias	2023-02-21 10:42:00 +01:00
man	; Add 2023 to copyright years.	2023-01-01 05:31:12 -05:00
misc	Merge from origin/emacs-29	2023-02-19 11:38:09 +01:00