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bug#46834: 28.0.50; byte-compiling the standard counter closure fails
From: |
Pip Cet |
Subject: |
bug#46834: 28.0.50; byte-compiling the standard counter closure fails |
Date: |
Sun, 28 Feb 2021 15:04:06 +0000 |
(My apologies if this is well-known, documented, or plain stupid on my
part, but I think it's an interesting gotcha. Feel free to close
immediately in those cases.)
Steps to reproduce from emacs -Q:
Evaluate the following in a lexically-bound Emacs Lisp buffer:
(byte-compile (let ((l 0)) (lambda () (cl-incf l))))
Expected result:
A byte code object which will increment its return value by one every
time it is called.
Actual result:
A byte code object which always returns 1.
- bug#46834: 28.0.50; byte-compiling the standard counter closure fails,
Pip Cet <=