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Suppresses overridden rules in the names reported for a reduction relation

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This commit is contained in:
Casey Klein 2011-01-08 11:37:04 -06:00
parent 394fab0d86
commit 56a548c517
2 changed files with 15 additions and 3 deletions
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5
collects/redex/private/struct.rkt
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@ -1,4 +1,4 @@
#lang scheme/base
#lang racket
(require "matcher.ss")
@ -95,8 +95,9 @@
make-procs/check-domain)])
(make-reduction-relation lang
all-make-procs
(remove-duplicates
(append rule-names
(reduction-relation-rule-names orig-reduction-relation))
(reduction-relation-rule-names orig-reduction-relation)))
lws ;; only keep new lws for typesetting
(map (λ (make-proc) (make-proc lang)) all-make-procs)))]
[else

13
collects/redex/tests/tl-test.rkt
View File

@ -1279,10 +1279,21 @@
(define r2
(extend-reduction-relation r1 l2))
;; test that the domain is re-interpreted for the extended reduction-relation
;; test that the domain is re-interpreted wrt the new language
(test (apply-reduction-relation r2 3)
'(3)))
(let ()
(define-language L)
(define R
(reduction-relation L (--> 1 1 "a")))
(define S
(extend-reduction-relation R L (--> 2 2 "a")))
;; test that overridden rules do not appear (twice)
(test (reduction-relation->rule-names S)
'(a)))
(let ()
(define-language l1
(D 0 1 2))