From: ludo@gnu.org (Ludovic Courtès)
To: guile-devel@gnu.org
Subject: peval & let-values
Date: Wed, 21 Sep 2011 15:28:54 +0200 [thread overview]
Message-ID: <87ty86xbvt.fsf@gnu.org> (raw)
In-Reply-To: 87boueic7c.fsf@pobox.com
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Hi,
Andy Wingo <wingo@pobox.com> skribis:
> Firstly, I added a let-values inliner to peval. It was fairly pleasant
> to write. It can do things like:
>
> (let ((x 0))
> (call-with-values
> (lambda () (if (zero? x) (values 1 2) (values 3 4)))
> (lambda (a b)
> (+ a b))))
> => 3
This example doesn’t seem to work as is, presumably because
‘call-with-values’ doesn’t get “primitivized”:
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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diff --git a/test-suite/tests/tree-il.test b/test-suite/tests/tree-il.test
index 63b74ad..0074aa0 100644
--- a/test-suite/tests/tree-il.test
+++ b/test-suite/tests/tree-il.test
@@ -621,6 +621,15 @@
(const 3))
(pass-if-peval
+ ;; First order, let-values.
+ (let ((x 0))
+ (call-with-values
+ (lambda () (if (zero? x) (values 1 2) (values 3 4)))
+ (lambda (a b)
+ (+ a b))))
+ (const 3))
+
+ (pass-if-peval
;; First order, coalesced.
(cons 0 (cons 1 (cons 2 (list 3 4 5))))
(const (0 1 2 3 4 5)))
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Ludo’.
next prev parent reply other threads:[~2011-09-21 13:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-21 7:31 thoughts on peval Andy Wingo
2011-09-21 9:31 ` Ludovic Courtès
2011-09-21 10:32 ` Andy Wingo
2011-09-21 12:26 ` Ludovic Courtès
2011-09-21 13:28 ` Ludovic Courtès [this message]
2011-09-21 17:54 ` peval & let-values Andy Wingo
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