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[Bug] csc infinitely loops on expansion of macro that csi expands normal
From: |
Peter McGoron |
Subject: |
[Bug] csc infinitely loops on expansion of macro that csi expands normally |
Date: |
Sun, 29 Dec 2024 20:44:15 -0500 |
User-agent: |
Mozilla Thunderbird |
Hello,
csc enters an infinite loop attempting to expand the following:
(define-syntax make-alist
(syntax-rules ()
((make-alist (key val) ...)
(list (cons key val) ...))))
(display (caar (make-alist ("cons" cons))))
(newline)
Loading the file into csi prints "cons" as normal.
The behavior seems to be specific to the symbol "cons": csc and csi both
successfully expand all of the following:
---------------------------------------------------------
(define-syntax make-alist
(syntax-rules ()
((make-alist (key val) ...)
(list (cons key val) ...))))
(display (caar (make-alist ("cons" car))))
(newline)
----------------------------------------------------------
(define kons cons)
(define-syntax make-alist
(syntax-rules ()
((make-alist (key val) ...)
(list (kons key val) ...))))
(display (caar (make-alist ("cons" cons))))
(newline)
----------------------------------------------------------
(define kons cons)
(define-syntax make-alist
(syntax-rules ()
((make-alist (key val) ...)
(list (cons key val) ...))))
(display (caar (make-alist ("cons" kons))))
(newline)
----------------------------------------------------------
Chicken Version: 5.4.0 (compiled from release tarball)
OS: Alpine Linux x86_64
CC: GCC Alpine 13.2.1_git20240309 (using musl libc)
- [Bug] csc infinitely loops on expansion of macro that csi expands normally,
Peter McGoron <=