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authorLudovic Courtès <ludo@gnu.org>2012-08-30 00:18:50 +0200
committerLudovic Courtès <ludo@gnu.org>2012-08-30 00:18:50 +0200
commitdcd60f439830ba58f7b89f028973e77ed414cb86 (patch)
treed4bbabd54fbd99677015245371e12d76e9cb9f3d /tests/utils.scm
parentc79dae607652c45fadb683b26d7a260dc55261ea (diff)
downloadpatches-dcd60f439830ba58f7b89f028973e77ed414cb86.tar
patches-dcd60f439830ba58f7b89f028973e77ed414cb86.tar.gz
define-record-type*: Add the `inherit' syntactic constructor keyword.
* guix/utils.scm (define-record-type*)[make-syntactic-constructor]: New `type' parameter. Add the `inherit' keyword and corresponding support code. * tests/utils.scm ("define-record-type* & inherit", "define-record-type* & inherit & letrec* behavior"): New tests.
Diffstat (limited to 'tests/utils.scm')
-rw-r--r--tests/utils.scm30
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/utils.scm b/tests/utils.scm
index 6a90817ec3..a0b42052ad 100644
--- a/tests/utils.scm
+++ b/tests/utils.scm
@@ -132,6 +132,36 @@
(match (bar (z 21) (x (/ z 3)))
(($ <bar> 7 42 21))))))
+(test-assert "define-record-type* & inherit"
+ (begin
+ (define-record-type* <foo> foo make-foo
+ foo?
+ (bar foo-bar)
+ (baz foo-baz (default (+ 40 2))))
+ (let* ((a (foo (bar 1)))
+ (b (foo (inherit a) (baz 2)))
+ (c (foo (inherit b) (bar -2)))
+ (d (foo (inherit c)))
+ (e (foo (inherit (foo (bar 42))) (baz 77))))
+ (and (match a (($ <foo> 1 42) #t))
+ (match b (($ <foo> 1 2) #t))
+ (match c (($ <foo> -2 2) #t))
+ (equal? c d)
+ (match e (($ <foo> 42 77) #t))))))
+
+(test-assert "define-record-type* & inherit & letrec* behavior"
+ (begin
+ (define-record-type* <foo> foo make-foo
+ foo?
+ (bar foo-bar)
+ (baz foo-baz (default (+ 40 2))))
+ (let* ((a (foo (bar 77)))
+ (b (foo (inherit a) (bar 1) (baz (+ bar 1))))
+ (c (foo (inherit b) (baz 2) (bar (- baz 1)))))
+ (and (match a (($ <foo> 77 42) #t))
+ (match b (($ <foo> 1 2) #t))
+ (equal? b c)))))
+
(test-end)