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fix language extension bug in reduction-relation

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closes PR 14660
This commit is contained in:
Robby Findler 2014-07-26 00:41:25 -05:00
parent 312d8d5d05
commit 0c68ded12d
2 changed files with 28 additions and 7 deletions
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17
pkgs/redex-pkgs/redex-lib/redex/private/reduction-semantics.rkt
View File

@ -754,11 +754,12 @@
(define lang-nts (language-id-nts lang-id 'reduction-relation))
(define (rw-sc pat) (rewrite-side-conditions/check-errs lang-id orig-name #t pat))
(define-values (name computed-name sides/withs/freshs) (process-extras stx orig-name name-table extras))
(define rt-lang-id (car (generate-temporaries (list lang))))
(with-syntax ([(from-syncheck-expr side-conditions-rewritten (names ...) (names/ellipses ...)) (rw-sc from)])
(define body-code
(bind-withs orig-name
#'main-exp
lang
rt-lang-id
lang-nts
lang-id
sides/withs/freshs
@ -799,11 +800,12 @@
lhs-syncheck-expr
(build-rewrite-proc/leaf
`side-conditions-rewritten
(λ (main-exp bindings)
#,(bind-pattern-names 'reduction-relation
#'(names/ellipses ...)
#'((lookup-binding bindings 'names) ...)
#'body-code))
(λ (#,rt-lang-id)
(λ (main-exp bindings)
#,(bind-pattern-names 'reduction-relation
#'(names/ellipses ...)
#'((lookup-binding bindings 'names) ...)
#'body-code)))
lhs-source
name
(λ (lang-id2) `lhs-w/extras))))))
@ -925,13 +927,14 @@
(do-reduction-relation/proc stx))
(define (build-rewrite-proc/leaf side-conditions-rewritten
build-really-matched
build-really-matched/lang-arg
lhs-source
name
lhs-w/extras-proc)
(let ([case-id (gensym)])
(make-rewrite-proc
(λ (lang-id)
(define build-really-matched (build-really-matched/lang-arg lang-id))
(let ([cp (compile-pattern lang-id side-conditions-rewritten #t)])
(λ (main-exp exp f other-matches)
(let ([mtchs (match-pattern cp exp)])

18
pkgs/redex-pkgs/redex-test/redex/tests/tl-test.rkt
View File

@ -2160,6 +2160,24 @@
(test (apply-reduction-relation red2 (term (X q))) (list (term (X z))
(term (X w)))))
(let ()
(define-language L (M ::= number))
(define r (reduction-relation L (--> M M (where M M))))
(define-extended-language L1 L (M ::= string))
(define r1 (extend-reduction-relation r L1))
(test (apply-reduction-relation r1 "7") '("7")))
(let ()
(define-language L (M ::= number))
(define-extended-language L1 L (M ::= string))
(define-judgment-form L
#:mode (id I O)
#:contract (id any any)
[(id any any)])
(define t (reduction-relation L (--> M M (judgment-holds (id M M)))))
(define t1 (extend-reduction-relation t L1))
(test (apply-reduction-relation t1 "7") '("7")))
(test (reduction-relation->rule-names
(reduction-relation
empty-language