From 8fd5bd2b69b51e370144f26c01201a178c024483 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Sun, 1 Jul 2012 17:32:03 +0200 Subject: define-record-type*: Add `letrec*' behavior. * guix/utils.scm (define-record-type*)[make-syntactic-constructor]: Bind all the ((FIELD VALUE) ...) in a `letrec*'. Adjust `field-value' accordingly. * tests/utils.scm ("define-record-type* with letrec* behavior"): New test. --- tests/utils.scm | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'tests/utils.scm') diff --git a/tests/utils.scm b/tests/utils.scm index 83a78b7a78..4a24e23df9 100644 --- a/tests/utils.scm +++ b/tests/utils.scm @@ -112,6 +112,22 @@ (match (foo (bar 1)) (($ 1 42) #t))))) +(test-assert "define-record-type* with letrec* behavior" + ;; Make sure field initializers can refer to each other as if they were in + ;; a `letrec*'. + (begin + (define-record-type* bar make-bar + foo? + (x bar-x) + (y bar-y (default (+ 40 2))) + (z bar-z)) + (and (match (bar (x 1) (y (+ x 1)) (z (* y 2))) + (($ 1 2 4) #t)) + (match (bar (x 7) (z (* x 3))) + (($ 7 42 21))) + (match (bar (z 21) (x (/ z 3))) + (($ 7 42 21)))))) + (test-end) -- cgit v1.2.3