racket/collects/redex/tests/matcher-test.ss

821 lines
41 KiB
Scheme

(module matcher-test mzscheme
(require "../private/matcher.ss"
(only "test-util.ss" equal/bindings?)
(lib "list.ss"))
(error-print-width 500)
(define (make-test-mtch a b c) (make-mtch a (build-flat-context b) c))
(define (test)
(print-struct #t)
(test-empty 'any 1 (list (make-test-mtch (make-bindings (list (make-bind 'any 1))) 1 none)))
(test-empty 'any 'true (list (make-test-mtch (make-bindings (list (make-bind 'any 'true))) 'true none)))
(test-empty 'any "a" (list (make-test-mtch (make-bindings (list (make-bind 'any "a"))) "a" none)))
(test-empty 'any '(a b) (list (make-test-mtch (make-bindings (list (make-bind 'any '(a b)))) '(a b) none)))
(test-empty 'any #t (list (make-test-mtch (make-bindings (list (make-bind 'any #t))) #t none)))
(test-empty 1 1 (list (make-test-mtch (make-bindings null) 1 none)))
(test-empty 1 '() #f)
(test-empty 99999999999999999999999999999999999999999999999
99999999999999999999999999999999999999999999999
(list (make-test-mtch (make-bindings null)
99999999999999999999999999999999999999999999999
none)))
(test-empty 99999999999999999999999999999999999999999999999
'()
#f)
(test-empty 'x 'x (list (make-test-mtch (make-bindings null) 'x none)))
(test-empty 'x '() #f)
(test-empty 1 2 #f)
(test-empty "a" "b" #f)
(test-empty "a" '(x) #f)
(test-empty "a" '() #f)
(test-empty "a" "a" (list (make-test-mtch (make-bindings null) "a" none)))
(test-empty 'number 1 (list (make-test-mtch (make-bindings (list (make-bind 'number 1))) 1 none)))
(test-empty 'number 'x #f)
(test-empty 'number '() #f)
(test-empty 'natural 1 (list (make-test-mtch (make-bindings (list (make-bind 'natural 1))) 1 none)))
(test-empty 'natural 'x #f)
(test-empty 'natural '() #f)
(test-empty 'natural -1 #f)
(test-empty 'natural 1.0 #f)
(test-empty 'integer -1 (list (make-test-mtch (make-bindings (list (make-bind 'integer -1))) -1 none)))
(test-empty 'integer 'x #f)
(test-empty 'integer '() #f)
(test-empty 'integer 1.0 #f)
(test-empty 'real 1.1 (list (make-test-mtch (make-bindings (list (make-bind 'real 1.1))) 1.1 none)))
(test-empty 'real 'x #f)
(test-empty 'real '() #f)
(test-empty 'real 2+3i #f)
(test-empty 'string "a" (list (make-test-mtch (make-bindings (list (make-bind 'string "a"))) "a" none)))
(test-empty 'string 1 #f)
(test-empty 'string '() #f)
(test-empty 'variable 'x (list (make-test-mtch (make-bindings (list (make-bind 'variable 'x))) 'x none)))
(test-empty 'variable 1 #f)
(test-empty '(variable-except x) 1 #f)
(test-empty '(variable-except x) 'x #f)
(test-empty '(variable-except x) 'y (list (make-test-mtch (make-bindings null) 'y none)))
(test-lang 'x 'y (list (make-mtch (make-bindings (list (make-bind 'x 'y))) 'y none))
(list (make-nt 'x (list (make-rhs '(variable-except x))))))
(test-empty '(variable-prefix x:) 'x: (list (make-test-mtch (make-bindings null) 'x: none)))
(test-empty '(variable-prefix x:) 'x:x (list (make-test-mtch (make-bindings null) 'x:x none)))
(test-empty '(variable-prefix x:) ': #f)
(test-empty '(variable-prefix x:) '() #f)
(test-empty 'hole 1 #f)
(test-empty `hole
the-hole
(list (make-test-mtch (make-bindings (list)) the-hole none)))
(test-empty '(in-hole (hole 2) 1)
'(1 2)
(list (make-test-mtch (make-bindings (list)) `(1 2) none)))
(test-empty '(in-hole (name E_1 ((hide-hole hole) hole)) x)
`(,the-hole x)
(list (make-test-mtch (make-bindings (list (make-bind 'E_1 `(,the-not-hole ,the-hole))))
`(,the-hole x)
none)))
(test-empty '(name x number) 1 (list (make-test-mtch (make-bindings (list (make-bind 'x 1) (make-bind 'number 1))) 1 none)))
(test-empty 'number_x 1 (list (make-test-mtch (make-bindings (list (make-bind 'number_x 1))) 1 none)))
(test-empty 'string_y "b" (list (make-test-mtch (make-bindings (list (make-bind 'string_y "b"))) "b" none)))
(test-empty 'any_z '(a b) (list (make-test-mtch (make-bindings (list (make-bind 'any_z '(a b)))) '(a b) none)))
(test-empty '(name x_!_1 number) 1 (list (make-test-mtch (make-bindings (list (make-bind 'number 1))) 1 none)))
(test-empty '((name x_!_1 number) (name x_!_1 number)) '(1 1) #f)
(test-empty '((name x_!_1 number_a) (name x_!_1 number_b)) '(1 2)
(list (make-test-mtch (make-bindings (list (make-bind 'number_a 1)
(make-bind 'number_b 2)))
'(1 2)
none)))
(test-empty '(number_!_1 number_!_1) '(1 1) #f)
(test-empty '(number_!_1 number_!_1) '(1 2) (list (make-test-mtch (make-bindings (list)) '(1 2) none)))
(test-empty '(number_!_1 ...) '(1 2) (list (make-test-mtch (make-bindings (list)) '(1 2) none)))
(test-empty '(number_!_1 ...) '(1 2 3 4 5) (list (make-test-mtch (make-bindings (list)) '(1 2 3 4 5) none)))
(test-empty '(number_!_1 ...) '(1 2 3 1 5) (list (make-test-mtch (make-bindings (list)) '(1 2 3 1 5) none)))
(test-empty '((number_!_1 ...) (number_!_1 ...))
'((1 2 3 1 5) (1 2 3 1 5))
#f)
(test-empty '((number_!_1 ...) (number_!_1 ...))
'((17 2 3 1 5) (1 2 3 1 5))
(list (make-test-mtch (make-bindings (list)) '((17 2 3 1 5) (1 2 3 1 5)) none)))
(test-empty '((number_!_1 number_!_1) ... number_!_1 ...) '((1 1) (2 2) 1 3) #f)
(test-empty '((number_!_1 number_!_1) ... number_!_1 ...) '((1 1) (2 3) 1 2) #f)
(test-empty '((number_!_1 number_!_1) ... number_!_1 ...)
'((1 1) (2 3) 1 4)
(list (make-test-mtch (make-bindings (list)) '((1 1) (2 3) 1 4) none)))
(test-ellipses '(a) '(a))
(test-ellipses '(a ...) `(,(make-repeat 'a '() #f #f)))
(test-ellipses '((a ...) ...) `(,(make-repeat '(a ...) '() #f #f)))
(test-ellipses '(a ... b c ...) `(,(make-repeat 'a '() #f #f) b ,(make-repeat 'c '() #f #f)))
(test-ellipses '((name x a) ...) `(,(make-repeat '(name x a) (list (make-bind 'x '())) #f #f)))
(test-ellipses '((name x (a ...)) ...)
`(,(make-repeat '(name x (a ...)) (list (make-bind 'x '())) #f #f)))
(test-ellipses '(((name x a) ...) ...)
`(,(make-repeat '((name x a) ...) (list (make-bind 'x '())) #f #f)))
(test-ellipses '((1 (name x a)) ...)
`(,(make-repeat '(1 (name x a)) (list (make-bind 'x '())) #f #f)))
(test-ellipses '((any (name x a)) ...)
`(,(make-repeat '(any (name x a)) (list (make-bind 'any '())
(make-bind 'x '()))
#f #f)))
(test-ellipses '((number (name x a)) ...)
`(,(make-repeat '(number (name x a)) (list (make-bind 'number '())
(make-bind 'x '()))
#f #f)))
(test-ellipses '((variable (name x a)) ...)
`(,(make-repeat '(variable (name x a)) (list (make-bind 'variable '())
(make-bind 'x '()))
#f #f)))
(test-ellipses '(((name x a) (name y b)) ...)
`(,(make-repeat '((name x a) (name y b)) (list (make-bind 'x '()) (make-bind 'y '())) #f #f)))
(test-ellipses '((name x (name y b)) ...)
`(,(make-repeat '(name x (name y b)) (list (make-bind 'x '()) (make-bind 'y '())) #f #f)))
(test-ellipses '((in-hole (name x a) (name y b)) ...)
`(,(make-repeat '(in-hole (name x a) (name y b))
(list (make-bind 'x '()) (make-bind 'y '())) #f #f)))
(test-ellipses '(a ..._1)
`(,(make-repeat 'a (list) '..._1 #f)))
(test-ellipses '(a ..._!_1)
`(,(make-repeat 'a (list) '..._!_1 #t)))
(test-empty '() '() (list (make-test-mtch (make-bindings null) '() none)))
(test-empty '(a) '(a) (list (make-test-mtch (make-bindings null) '(a) none)))
(test-empty '(a) '(b) #f)
(test-empty '(a b) '(a b) (list (make-test-mtch (make-bindings null) '(a b) none)))
(test-empty '(a b) '(a c) #f)
(test-empty '() 1 #f)
(test-empty '(#f x) '(#f x) (list (make-test-mtch (make-bindings null) '(#f x) none)))
(test-empty '(#f (name y any)) '(#f) #f)
(test-empty '(in-hole (z hole) a) '(z a) (list (make-test-mtch (make-bindings (list)) '(z a) none)))
(test-empty '(in-hole (z hole) (in-hole (x hole) a))
'(z (x a))
(list (make-test-mtch (make-bindings (list)) '(z (x a)) none)))
(run-test/cmp 'in-hole-zero-holes
(with-handlers ([exn:fail? (λ (e) (regexp-match #rx"zero holes" (exn-message e)))])
(test-empty '(in-hole (1 2) 2) '(1 2) 'never-gets-here)
'should-have-raised-an-exception)
'("zero holes")
equal?)
(test-empty '(in-hole (in-hole (x hole) hole) y)
'(x y)
(list (make-test-mtch (make-bindings (list)) '(x y) none)))
(test-empty '(number number) '(1 1) (list (make-test-mtch (make-bindings (list (make-bind 'number 1))) '(1 1) none)))
(test-empty '((name x number) (name x number)) '(1 1) (list (make-test-mtch (make-bindings (list (make-bind 'x 1) (make-bind 'number 1))) '(1 1) none)))
(test-empty '((name x number_q) (name x number_r)) '(1 1) (list (make-test-mtch (make-bindings (list (make-bind 'x 1)
(make-bind 'number_q 1)
(make-bind 'number_r 1)))
'(1 1)
none)))
(test-empty '(number number) '(1 2) #f)
(test-empty '((name x number) (name x number)) '(1 2) #f)
(test-empty '((name x number_q) (name x number_r)) '(1 2) #f)
(test-empty '(a ...) '() (list (make-test-mtch (make-bindings empty) '() none)))
(test-empty '(a ...) '(a) (list (make-test-mtch (make-bindings empty) '(a) none)))
(test-empty '(a ...) '(a a) (list (make-test-mtch (make-bindings empty) '(a a) none)))
(test-empty '((name x a) ...) '() (list (make-test-mtch (make-bindings (list (make-bind 'x '()))) '() none)))
(test-empty '((name x a) ...) '(a) (list (make-test-mtch (make-bindings (list (make-bind 'x '(a)))) '(a) none)))
(test-empty '((name x a) ...) '(a a) (list (make-test-mtch (make-bindings (list (make-bind 'x '(a a)))) '(a a) none)))
(test-empty '(b ... a ...) '() (list (make-test-mtch (make-bindings empty) '() none)))
(test-empty '(b ... a ...) '(a) (list (make-test-mtch (make-bindings empty) '(a) none)))
(test-empty '(b ... a ...) '(b) (list (make-test-mtch (make-bindings empty) '(b) none)))
(test-empty '(b ... a ...) '(b a) (list (make-test-mtch (make-bindings empty) '(b a) none)))
(test-empty '(b ... a ...) '(b b a a) (list (make-test-mtch (make-bindings empty) '(b b a a) none)))
(test-empty '(b ... a ...) '(a a) (list (make-test-mtch (make-bindings empty) '(a a) none)))
(test-empty '(b ... a ...) '(b b) (list (make-test-mtch (make-bindings empty) '(b b) none)))
(test-empty '(a ..._1 a ..._2)
'(a)
(list (make-test-mtch (make-bindings (list (make-bind '..._1 1) (make-bind '..._2 0))) '(a) none)
(make-test-mtch (make-bindings (list (make-bind '..._1 0) (make-bind '..._2 1))) '(a) none)))
(test-empty '(a ..._1 a ..._1) '(a) #f)
(test-empty '(a ..._1 a ..._1)
'(a a)
(list (make-test-mtch (make-bindings (list (make-bind '..._1 1))) '(a a) none)))
(test-empty '((name x a) ..._!_1 (name y a) ..._!_1)
'(a a)
(list (make-test-mtch (make-bindings (list (make-bind 'x '()) (make-bind 'y '(a a)))) '(a a) none)
(make-test-mtch (make-bindings (list (make-bind 'x '(a a)) (make-bind 'y '()))) '(a a) none)))
(test-empty '((name y b) ... (name x a) ...) '()
(list (make-test-mtch (make-bindings (list (make-bind 'x '())
(make-bind 'y '())))
'()
none)))
(test-empty '((name y b) ... (name x a) ...) '(a)
(list (make-test-mtch (make-bindings (list (make-bind 'x '(a))
(make-bind 'y '())))
'(a)
none)))
(test-empty '((name y b) ... (name x a) ...) '(b)
(list (make-test-mtch (make-bindings (list (make-bind 'x '())
(make-bind 'y '(b))))
'(b)
none)))
(test-empty '((name y b) ... (name x a) ...) '(b b a a)
(list (make-test-mtch (make-bindings (list (make-bind 'x '(a a))
(make-bind 'y '(b b))))
'(b b a a)
none)))
(test-empty '((name y a) ... (name x a) ...) '(a)
(list (make-test-mtch (make-bindings (list (make-bind 'x '())
(make-bind 'y '(a))))
'(a)
none)
(make-test-mtch (make-bindings (list (make-bind 'x '(a))
(make-bind 'y '())))
'(a)
none)))
(test-empty '((name y a) ... (name x a) ...) '(a a)
(list (make-test-mtch (make-bindings (list (make-bind 'x '())
(make-bind 'y '(a a))))
'(a a)
none)
(make-test-mtch (make-bindings (list (make-bind 'x '(a))
(make-bind 'y '(a))))
'(a a)
none)
(make-test-mtch (make-bindings (list (make-bind 'x '(a a))
(make-bind 'y '())))
'(a a)
none)))
(test-ab '(bb_y ... aa_x ...) '()
(list (make-test-mtch (make-bindings (list (make-bind 'aa_x '())
(make-bind 'bb_y '())))
'()
none)))
(test-ab '(bb_y ... aa_x ...) '(a)
(list (make-test-mtch (make-bindings (list (make-bind 'aa_x '(a))
(make-bind 'bb_y '())))
'(a)
none)))
(test-ab '(bb_y ... aa_x ...) '(b)
(list (make-test-mtch (make-bindings (list (make-bind 'aa_x '())
(make-bind 'bb_y '(b))))
'(b)
none)))
(test-ab '(bb_y ... aa_x ...) '(b b a a)
(list (make-test-mtch (make-bindings (list (make-bind 'aa_x '(a a))
(make-bind 'bb_y '(b b))))
'(b b a a)
none)))
(test-ab '(aa_y ... aa_x ...) '(a)
(list (make-test-mtch (make-bindings (list (make-bind 'aa_x '())
(make-bind 'aa_y '(a))))
'(a)
none)
(make-test-mtch (make-bindings (list (make-bind 'aa_x '(a))
(make-bind 'aa_y '())))
'(a)
none)))
(test-ab '(aa_y ... aa_x ...) '(a a)
(list (make-test-mtch (make-bindings (list (make-bind 'aa_x '())
(make-bind 'aa_y '(a a))))
'(a a)
none)
(make-test-mtch (make-bindings (list (make-bind 'aa_x '(a))
(make-bind 'aa_y '(a))))
'(a a)
none)
(make-test-mtch (make-bindings (list (make-bind 'aa_x '(a a))
(make-bind 'aa_y '())))
'(a a)
none)))
(test-empty '((name x number) ...) '(1 2) (list (make-test-mtch (make-bindings (list (make-bind 'x '(1 2)) (make-bind 'number '(1 2)))) '(1 2) none)))
(test-empty '(a ...) '(b) #f)
(test-empty '(a ... b ...) '(c) #f)
(test-empty '(a ... b) '(b c) #f)
(test-empty '(a ... b) '(a b c) #f)
(test-empty '((name x any)
((name x number) ...))
'((1 1) (1 1))
(list (make-test-mtch (make-bindings (list (make-bind 'x '(1 1))
(make-bind 'any '(1 1))
(make-bind 'number '(1 1))))
'((1 1) (1 1))
none)))
(test-empty '((variable_1 variable_1) ...)
'((x y))
#f)
(test-empty '(number ...) '()
(list (make-test-mtch (make-bindings (list (make-bind 'number '()))) '() none)))
(test-ab '(aa ...) '()
(list (make-test-mtch (make-bindings (list (make-bind 'aa '()))) '() none)))
;; testing block-in-hole
(test-empty '(hide-hole a) 'b #f)
(test-empty '(hide-hole a) 'a (list (make-test-mtch (make-bindings '()) 'a none)))
(test-empty '(hide-hole a) '(block-in-hole a) #f)
(test-empty '(in-hole (x (hide-hole hole)) 1) '(x 1) #f)
(test-empty '(in-hole (x hole) 1) '(x 1) (list (make-test-mtch (make-bindings '()) '(x 1) none)))
(test-empty '(in-hole ((hole #f) (hide-hole hole)) junk)
'(junk junk2)
#f)
(test-xab 'lsts '() (list (make-test-mtch (make-bindings (list (make-bind 'lsts '()))) '() none)))
(test-xab 'lsts '(x) (list (make-test-mtch (make-bindings (list (make-bind 'lsts '(x)))) '(x) none)))
(test-xab 'lsts 'x (list (make-test-mtch (make-bindings (list (make-bind 'lsts 'x))) 'x none)))
(test-xab 'lsts #f (list (make-test-mtch (make-bindings (list (make-bind 'lsts #f))) #f none)))
(test-xab 'split-out '1 (list (make-test-mtch (make-bindings (list (make-bind 'split-out 1))) '1 none)))
(test-xab 'exp 1 (list (make-test-mtch (make-bindings (list (make-bind 'exp 1))) 1 none)))
(test-xab 'exp '(+ 1 2) (list (make-test-mtch (make-bindings (list (make-bind 'exp '(+ 1 2)))) '(+ 1 2) none)))
(test-xab '(in-hole ctxt any)
'1
(list (make-test-mtch (make-bindings (list (make-bind 'ctxt the-hole) (make-bind 'any 1))) 1 none)))
(test-xab '(in-hole ctxt (name x any))
'1
(list (make-test-mtch (make-bindings (list (make-bind 'ctxt the-hole) (make-bind 'x 1) (make-bind 'any 1))) 1 none)))
(test-xab '(in-hole (name c ctxt) (name x any))
'(+ 1 2)
(list (make-test-mtch (make-bindings (list (make-bind 'ctxt (build-context the-hole))
(make-bind 'c (build-context the-hole))
(make-bind 'x '(+ 1 2))
(make-bind 'any '(+ 1 2))))
'(+ 1 2) none)
(make-test-mtch (make-bindings (list (make-bind 'ctxt (build-context `(+ ,the-hole 2)))
(make-bind 'c (build-context `(+ ,the-hole 2)))
(make-bind 'x 1)
(make-bind 'any 1)))
'(+ 1 2) none)
(make-test-mtch (make-bindings (list (make-bind 'ctxt (build-context `(+ 1 ,the-hole)))
(make-bind 'c (build-context `(+ 1 ,the-hole)))
(make-bind 'x 2)
(make-bind 'any 2)))
'(+ 1 2) none)))
(test-xab '(in-hole (name c ctxt) (name i (+ number_1 number_2)))
'(+ (+ 1 2) (+ 3 4))
(list (make-test-mtch
(make-bindings (list (make-bind 'i '(+ 1 2))
(make-bind 'number_1 1)
(make-bind 'number_2 2)
(make-bind 'ctxt (build-context `(+ ,the-hole (+ 3 4))))
(make-bind 'c (build-context `(+ ,the-hole (+ 3 4))))))
'(+ (+ 1 2) (+ 3 4))
none)
(make-test-mtch (make-bindings (list (make-bind 'i '(+ 3 4))
(make-bind 'number_1 3)
(make-bind 'number_2 4)
(make-bind 'ctxt `(+ (+ 1 2) ,the-hole))
(make-bind 'c `(+ (+ 1 2) ,the-hole))))
'(+ (+ 1 2) (+ 3 4))
none)))
(test-empty '(in-hole ((z hole)) (name x any))
'((z a))
(list (make-test-mtch (make-bindings (list (make-bind 'x 'a) (make-bind 'any 'a))) '((z a)) none)))
(test-empty '(in-hole (name c (z ... hole z ...)) any)
'(z z)
(list
(make-test-mtch (make-bindings (list (make-bind 'c `(z ,the-hole)) (make-bind 'any 'z))) '(z z) none)
(make-test-mtch (make-bindings (list (make-bind 'c `(,the-hole z)) (make-bind 'any 'z))) '(z z) none)))
(test-empty '(in-hole (name c (z ... hole z ...)) any)
'(z z z)
(list
(make-test-mtch (make-bindings (list (make-bind 'c `(z z ,the-hole)) (make-bind 'any 'z))) '(z z z) none)
(make-test-mtch (make-bindings (list (make-bind 'c `(z ,the-hole z)) (make-bind 'any 'z))) '(z z z) none)
(make-test-mtch (make-bindings (list (make-bind 'c `(,the-hole z z)) (make-bind 'any 'z))) '(z z z) none)))
(test-empty '(z (in-hole (name c (z hole)) a))
'(z (z a))
(list
(make-test-mtch (make-bindings (list (make-bind 'c `(z ,the-hole))))
'(z (z a))
none)))
(test-empty '(a (in-hole (name c1 (b (in-hole (name c2 (c hole)) d) hole)) e))
'(a (b (c d) e))
(list
(make-test-mtch (make-bindings (list (make-bind 'c2 `(c ,the-hole))
(make-bind 'c1 `(b (c d) ,the-hole))))
'(a (b (c d) e))
none)))
(test-empty '(in-hole (in-hole hole hole) a)
'a
(list (make-test-mtch (make-bindings (list)) 'a none)))
(test-empty '(a (b (in-hole (name c1 (in-hole (name c2 (c hole)) (d hole))) e)))
'(a (b (c (d e))))
(list
(make-test-mtch (make-bindings (list (make-bind 'c1 `(c (d ,the-hole)))
(make-bind 'c2 `(c ,the-hole))))
'(a (b (c (d e))))
none)))
(test-empty `(+ 1 (side-condition any ,(lambda (bindings) #t) #t))
'(+ 1 b)
(list (make-test-mtch (make-bindings (list (make-bind 'any 'b))) '(+ 1 b) none)))
(test-empty `(+ 1 (side-condition any ,(lambda (bindings) #f) #f))
'(+ 1 b)
#f)
(test-empty `(+ 1 (side-condition b ,(lambda (bindings) #t) #t))
'(+ 1 b)
(list (make-test-mtch (make-bindings '()) '(+ 1 b) none)))
(test-empty `(+ 1 (side-condition a ,(lambda (bindings) #t)) #t)
'(+ 1 b)
#f)
(test-empty `(side-condition (name x any) ,(lambda (bindings) (eq? (lookup-binding bindings 'x) 'a)) (eq? (term x) 'a))
'a
(list
(make-test-mtch (make-bindings (list (make-bind 'x 'a)
(make-bind 'any 'a)))
'a
none)))
(test-empty `(+ 1 (side-condition (name x any) ,(lambda (bindings) (eq? (lookup-binding bindings 'x) 'a)) (eq? (term x) 'a)))
'(+ 1 a)
(list
(make-test-mtch (make-bindings (list (make-bind 'x 'a)
(make-bind 'any 'a)))
'(+ 1 a)
none)))
(test-empty `(side-condition (name x any) ,(lambda (bindings) (eq? (lookup-binding bindings 'x) 'a)) (eq? (term x) 'a))
'b
#f)
(test-empty `(+ 1 (side-condition (name x any) ,(lambda (bindings) (eq? (lookup-binding bindings 'x) 'a)) (eq? (term x) 'a)))
'(+ 1 b)
#f)
(test-empty `(side-condition ((any_1 ..._a) (any_2 ..._a))
,(lambda (bindings) (error 'should-not-be-called))
(error 'should-not-be-called))
'((1 2 3) (4 5))
#f)
(test-xab 'exp_1
'(+ 1 2)
(list (make-test-mtch (make-bindings (list (make-bind 'exp_1 '(+ 1 2)))) '(+ 1 2) none)))
(test-xab '(exp_1 exp_2)
'((+ 1 2) (+ 3 4))
(list (make-test-mtch (make-bindings (list (make-bind 'exp_1 '(+ 1 2)) (make-bind 'exp_2 '(+ 3 4))))
'((+ 1 2) (+ 3 4))
none)))
(test-xab '(exp_1 exp_1)
'((+ 1 2) (+ 3 4))
#f)
(test-xab 'nesting-names
'b
(list (make-test-mtch (make-bindings (list (make-bind 'nesting-names 'b))) 'b none)))
(test-xab 'nesting-names
'(a b)
(list (make-test-mtch (make-bindings (list (make-bind 'nesting-names '(a b)))) '(a b) none)))
(test-xab 'nesting-names
'(a (a b))
(list (make-test-mtch (make-bindings (list (make-bind 'nesting-names '(a (a b))))) '(a (a b)) none)))
(test-xab '((name x a) nesting-names)
'(a (a (a b)))
(list (make-test-mtch (make-bindings (list (make-bind 'x 'a)
(make-bind 'nesting-names '(a (a b)))))
'(a (a (a b))) none)))
(test-xab 'nesting-names
'(a (a (a (a b))))
(list (make-test-mtch (make-bindings (list (make-bind 'nesting-names '(a (a (a (a b)))))))
'(a (a (a (a b)))) none)))
(test-xab 'same-in-nt
'(x x)
(list (make-test-mtch (make-bindings (list (make-bind 'same-in-nt '(x x)))) '(x x) none)))
(test-xab 'same-in-nt
'(x y)
#f)
(test-xab '(in-hole (cross forever-list) 1)
'(a b c)
#f)
(test-xab '(in-hole (cross forever-list) 1)
'(1 x x)
(list (make-test-mtch (make-bindings '()) '(1 x x) none)))
(test-xab '(in-hole (cross forever-list) 1)
'(x 1 x)
(list (make-test-mtch (make-bindings '()) '(x 1 x) none)))
(test-xab '(in-hole (cross simple) g)
'g
(list (make-mtch (make-bindings (list)) 'g none)))
(test-xab 'var '+ #f)
(test-xab 'var 'anunusedvariable (list (make-mtch (make-bindings (list (make-bind 'var 'anunusedvariable))) 'anunusedvariable none)))
(test-xab 'var 'exp (list (make-mtch (make-bindings (list (make-bind 'var 'exp))) 'exp none)))
(test-xab 'var 'exp_x (list (make-mtch (make-bindings (list (make-bind 'var 'exp_x))) 'exp_x none)))
(test-xab 'underscore '(+ 1 2) (list (make-mtch (make-bindings (list (make-bind 'underscore '(+ 1 2)))) '(+ 1 2) none)))
(test-xab 'underscore '2 (list (make-mtch (make-bindings (list (make-bind 'underscore 2))) 2 none)))
(run-test
'compatible-context-language1
(build-compatible-context-language
(mk-hasheq '((exp . ()) (ctxt . ())))
(list (make-nt 'exp
(list (make-rhs '(+ exp exp))
(make-rhs 'number)))
(make-nt 'ctxt
(list (make-rhs '(+ ctxt exp))
(make-rhs '(+ exp ctxt))
(make-rhs 'hole)))))
(list
(make-nt 'ctxt-ctxt
(list (make-rhs 'hole)
(make-rhs `(+ (cross ctxt-ctxt) exp))
(make-rhs `(+ ctxt (cross ctxt-exp)))
(make-rhs `(+ (cross ctxt-exp) ctxt))
(make-rhs `(+ exp (cross ctxt-ctxt)))))
(make-nt 'ctxt-exp
(list (make-rhs `(+ (cross ctxt-exp) exp))
(make-rhs `(+ exp (cross ctxt-exp)))))
(make-nt 'exp-ctxt
(list (make-rhs `(+ (cross exp-ctxt) exp))
(make-rhs `(+ ctxt (cross exp-exp)))
(make-rhs `(+ (cross exp-exp) ctxt))
(make-rhs `(+ exp (cross exp-ctxt)))))
(make-nt 'exp-exp
(list (make-rhs 'hole)
(make-rhs `(+ (cross exp-exp) exp))
(make-rhs `(+ exp (cross exp-exp)))))))
(run-test
'compatible-context-language2
(build-compatible-context-language
(mk-hasheq '((m . ()) (v . ())))
(list (make-nt 'm (list (make-rhs '(m m)) (make-rhs '(+ m m)) (make-rhs 'v)))
(make-nt 'v (list (make-rhs 'number) (make-rhs '(lambda (x) m))))))
(list
(make-nt 'v-v (list (make-rhs 'hole) (make-rhs (list 'lambda (list 'x) (list 'cross 'v-m)))))
(make-nt 'v-m
(list
(make-rhs (list (list 'cross 'v-m) 'm))
(make-rhs (list 'm (list 'cross 'v-m)))
(make-rhs (list '+ (list 'cross 'v-m) 'm))
(make-rhs (list '+ 'm (list 'cross 'v-m)))
(make-rhs (list 'cross 'v-v))))
(make-nt 'm-v (list (make-rhs (list 'lambda (list 'x) (list 'cross 'm-m)))))
(make-nt 'm-m
(list
(make-rhs 'hole)
(make-rhs (list (list 'cross 'm-m) 'm))
(make-rhs (list 'm (list 'cross 'm-m)))
(make-rhs (list '+ (list 'cross 'm-m) 'm))
(make-rhs (list '+ 'm (list 'cross 'm-m)))
(make-rhs (list 'cross 'm-v))))))
(run-test
'compatible-context-language3
(build-compatible-context-language
(mk-hasheq '((m . ()) (seven . ())))
(list (make-nt 'm (list (make-rhs '(m seven m)) (make-rhs 'number)))
(make-nt 'seven (list (make-rhs 7)))))
`(,(make-nt
'm-m
`(,(make-rhs 'hole) ,(make-rhs `((cross m-m) seven m)) ,(make-rhs `(m seven (cross m-m)))))
,(make-nt
'seven-m
`(,(make-rhs `((cross seven-m) seven m)) ,(make-rhs `(m (cross seven-seven) m)) ,(make-rhs `(m seven (cross seven-m)))))
,(make-nt 'seven-seven `(,(make-rhs 'hole)))))
(run-test
'compatible-context-language4
(build-compatible-context-language
(mk-hasheq '((a . ()) (b . ()) (c . ())))
(list (make-nt 'a (list (make-rhs 'b)))
(make-nt 'b (list (make-rhs 'c)))
(make-nt 'c (list (make-rhs 3)))))
(list (make-nt 'c-c (list (make-rhs 'hole)))
(make-nt 'c-b (list (make-rhs '(cross c-c))))
(make-nt 'c-a (list (make-rhs '(cross c-b))))
(make-nt 'b-b (list (make-rhs 'hole)))
(make-nt 'b-a (list (make-rhs '(cross b-b))))
(make-nt 'a-a (list (make-rhs 'hole)))))
#;
(test-xab '(in-hole (cross exp) (+ number number))
'(+ (+ 1 2) 3)
(list (make-bindings (list (make-bind 'hole (make-hole-binding (list '+ 1 2) (list 'cdr 'car) #f))))))
(run-test/cmp 'split-underscore1 (split-underscore 'a_1) 'a eq?)
(run-test/cmp 'split-underscore2 (split-underscore 'a_!_1) 'a eq?)
(run-test/cmp 'split-underscore3
(with-handlers ([exn:fail? (λ (e) (cadr (regexp-match #rx"^([^:]+):" (exn-message e))))])
(split-underscore 'a_b_1))
"compile-pattern"
equal?)
(test-ellipsis-binding '((number_1 number_2) ...) '((1 2)))
(test-ellipsis-binding '((name x number_1) ...) '(1 2))
(test-ellipsis-binding '(((number_1 ...) (number_2 ...)) ...) '(((1) (2))))
(test-ellipsis-binding '(number ... variable) '(1 x))
(cond
[(= failures 0)
(printf "matcher-test.ss: all ~a tests passed.\n" test-count)]
[else
(printf "matcher-test.ss: ~a test~a failed.\n"
failures
(if (= failures 1)
""
"s"))]))
;; mk-hasheq : (listof (cons sym any)) -> hash-table
;; builds a hash table that has the bindings in assoc-list
(define (mk-hasheq assoc-list)
(let ([ht (make-hash-table)])
(for-each
(lambda (a)
(hash-table-put! ht (car a) (cdr a)))
assoc-list)
ht))
;; test-empty : sexp[pattern] sexp[term] answer -> void
;; returns #t if pat matching exp with the empty language produces ans.
(define (test-empty pat exp ans)
(run-match-test
`(match-pattern (compile-pattern (compile-language 'pict-stuff-not-used '() '()) ',pat #t) ',exp)
(match-pattern
(compile-pattern (compile-language 'pict-stuff-not-used '() '()) pat #t)
exp)
ans))
;; test-lang : sexp[pattern] sexp[term] answer (list/c nt) -> void
;; returns #t if pat matching exp with the language defined by the given nts
(define (test-lang pat exp ans nts)
(let ([nt-map (map (λ (x) (list (nt-name x))) nts)])
(run-match-test
`(match-pattern (compile-pattern (compile-language 'pict-stuff-not-used ',nts ',nt-map) ',pat #t) ',exp)
(match-pattern
(compile-pattern (compile-language 'pict-stuff-not-used nts nt-map) pat #t)
exp)
ans)))
(define xab-lang #f)
;; test-xab : sexp[pattern] sexp[term] answer -> void
;; returns #t if pat matching exp with a simple language produces ans.
(define (test-xab pat exp ans)
(unless xab-lang
(let ([nts
(list (make-nt 'exp
(list (make-rhs '(+ exp exp))
(make-rhs 'number)))
(make-nt 'ctxt
(list (make-rhs '(+ ctxt exp))
(make-rhs '(+ exp ctxt))
(make-rhs 'hole)))
(make-nt 'ec-one
(list (make-rhs '(+ (hole xx) exp))
(make-rhs '(+ exp (hole xx)))))
(make-nt 'same-in-nt (list (make-rhs '((name x any) (name x any)))))
(make-nt 'forever-list (list (make-rhs '(forever-list forever-list ...))
(make-rhs 'x)))
(make-nt 'lsts
(list (make-rhs '())
(make-rhs '(x))
(make-rhs 'x)
(make-rhs '#f)))
(make-nt 'split-out
(list (make-rhs 'split-out2)))
(make-nt 'split-out2
(list (make-rhs 'number)))
(make-nt 'simple (list (make-rhs 'simple-rhs)))
(make-nt 'nesting-names
(list (make-rhs '(a (name x nesting-names)))
(make-rhs 'b)))
(make-nt 'var (list (make-rhs `variable-not-otherwise-mentioned)))
(make-nt 'underscore (list (make-rhs 'exp_1)))
)])
(set! xab-lang
(compile-language 'pict-stuff-not-used
nts
(map (λ (x) (list (nt-name x))) nts)))))
(run-match-test
`(match-pattern (compile-pattern xab-lang ',pat #t) ',exp)
(match-pattern (compile-pattern xab-lang pat #t) exp)
ans))
(define ab-lang #f)
;; test-xab : sexp[pattern] sexp[term] answer -> void
;; returns #t if pat matching exp with a simple language produces ans.
(define (test-ab pat exp ans)
(unless ab-lang
(set! ab-lang
(compile-language
'pict-stuff-not-used
(list (make-nt 'aa
(list (make-rhs 'a)))
(make-nt 'bb
(list (make-rhs 'b))))
'((aa) (bb)))))
(run-match-test
`(match-pattern (compile-pattern ab-lang ',pat #t) ',exp)
(match-pattern (compile-pattern ab-lang pat #t) exp)
ans))
;; test-ellipses : sexp sexp -> void
(define (test-ellipses pat expected)
(run-test
`(rewrite-ellipses test-suite:non-underscore-binder? ',pat (lambda (x) (values x #f)))
(let-values ([(compiled-pattern has-hole?) (rewrite-ellipses test-suite:non-underscore-binder? pat (lambda (x) (values x #f)))])
(cons compiled-pattern has-hole?))
(cons expected #f)))
(define (test-suite:non-underscore-binder? x)
(memq x '(number any variable string)))
;; test-ellipsis-binding: sexp sexp -> boolean
;; Checks that `extract-empty-bindings' produces bindings in the same order
;; as the matcher, as required by `collapse-single-multiples'
(define (test-ellipsis-binding pat exp)
(define (binding-names bindings)
(map (λ (b)
(cond [(bind? b) (bind-name b)]
[(mismatch-bind? b) (mismatch-bind-name b)]))
bindings))
(run-test
`(test-ellipsis-binding ,pat)
(binding-names
(bindings-table-unchecked
(mtch-bindings
(car
((compiled-pattern-cp
(compile-pattern (compile-language 'pict-stuff-not-used '() '()) pat #t))
exp
#t)))))
(binding-names (extract-empty-bindings test-suite:non-underscore-binder? pat))))
;; run-test/cmp : sexp any any (any any -> boolean)
;; compares ans with expected. If failure,
;; prints info about the test and increments failures
(define failures 0)
(define test-count 0)
(define (run-test/cmp symbolic ans expected cmp?)
(set! test-count (+ test-count 1))
(cond
[(cmp? ans expected)
'(printf "passed: ~s\n" symbolic)]
[else
(set! failures (+ failures 1))
(fprintf (current-error-port)
" test: ~s\nexpected: ~e\n got: ~e\n"
symbolic expected ans)]))
(define (run-test symbolic ans expected) (run-test/cmp symbolic ans expected equal/bindings?))
;; run-match-test : sexp got expected
;; expects both ans and expected to be lists or both to be #f and
;; compares them using a set-like equality if they are lists
(define (run-match-test symbolic ans expected)
(run-test/cmp
symbolic ans expected
(λ (xs ys)
(cond
[(and (not xs) (not ys)) #t]
[(and (list? xs)
(list? ys))
(and (andmap (λ (x) (memf (λ (y) (equal/bindings? x y)) ys)) xs)
(andmap (λ (y) (memf (λ (x) (equal/bindings? x y)) xs)) ys)
(= (length xs) (length ys)))]
[else #f]))))
(define (build-context c)
(let loop ([c c])
(cond
[(eq? c the-hole) the-hole]
[(pair? c) (build-cons-context (loop (car c)) (loop (cdr c)))]
[(or (null? c)
(number? c)
(symbol? c))
(build-flat-context c)]
[else (error 'build-context "unknown ~s" c)])))
(test))