suzanne.soy/beautiful-racket
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tests still pass

Browse Source
This commit is contained in:
Matthew Butterick 2016-05-04 23:37:48 -07:00
parent 3504667b83
commit 44d25659de
1 changed files with 3 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
beautiful-racket-ragg/br/ragg/codegen/flatten.rkt
View File

@ -1,4 +1,4 @@
#lang racket/base
#lang br
(require br/ragg/rules/stx-types
(for-syntax racket/base))
@ -139,7 +139,7 @@
;; Returns true if the pattern looks primitive
(define (primitive-pattern? a-pat)
(syntax-case a-pat (id lit token choice elide repeat maybe seq elide)
(syntax-case a-pat (id lit token choice repeat maybe seq)
[(id val)
#t]
[(lit val)
@ -153,8 +153,6 @@
[(maybe sub-pat)
#f]
[(seq sub-pat ...)
(andmap primitive-pattern? (syntax->list #'(sub-pat ...)))]
[(elide sub-pat ...)
(andmap primitive-pattern? (syntax->list #'(sub-pat ...)))]))
@ -163,7 +161,7 @@
;; and tokens.
(define (linearize-primitive-pattern a-pat)
(define (traverse a-pat acc)
(syntax-case a-pat (id inferred-id lit token seq elide)
(syntax-case a-pat (id inferred-id lit token seq)
[(id val)
(cons a-pat acc)]
[(inferred-id val reason)
@ -173,8 +171,6 @@
[(token val)
(cons a-pat acc)]
[(seq vals ...)
(foldl traverse acc (syntax->list #'(vals ...)))]
[(elide vals ...)
(foldl traverse acc (syntax->list #'(vals ...)))]))
(reverse (traverse a-pat '())))