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pushenv tets

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This commit is contained in:
Danny Yoo 2011-03-04 13:18:33 -05:00
parent 3b35a50810
commit 24149f82cb
2 changed files with 49 additions and 2 deletions
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12
simulator.rkt
View File

@ -41,7 +41,7 @@
[(TestAndBranchStatement? i)
(error 'step)]
[(PopEnvironment? i)
(error 'step)]
(step-pop-environment m i)]
[(PushEnvironment? i)
(step-push-environment m i)]
[(PushControlFrame? i)
@ -89,8 +89,16 @@
(loop (env-push m (void))
(sub1 n))])))
(: step-pop-environment (machine PopEnvironment -> machine))
(define (step-pop-environment machine stmt)
(env-pop machine
(PopEnvironment-n stmt)
(PopEnvironment-skip stmt)))
;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(: evaluate-oparg (machine OpArg -> Any))

39
test-simulator.rkt
View File

@ -79,3 +79,42 @@
,(make-AssignImmediateStatement (make-EnvLexicalReference 0) (make-Const 42))))]
[m (run m)])
(test (machine-env m) `(42 ,(void))))
;; PushEnv
(let ([m (new-machine `(,(make-PushEnvironment 20)))])
(test (machine-env (run m)) (build-list 20 (lambda (i) (void)))))
;; PopEnv
(let ([m (new-machine `(,(make-PushEnvironment 20)
,(make-PopEnvironment 20 0)))])
(test (machine-env (run m)) '()))
(let* ([m (new-machine `(,(make-PushEnvironment 3)
,(make-AssignImmediateStatement (make-EnvLexicalReference 0) (make-Const "hewie"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 1) (make-Const "dewey"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 2) (make-Const "louie"))
,(make-PopEnvironment 1 0)))])
(test (machine-env (run m)) '("dewey" "louie")))
(let* ([m (new-machine `(,(make-PushEnvironment 3)
,(make-AssignImmediateStatement (make-EnvLexicalReference 0) (make-Const "hewie"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 1) (make-Const "dewey"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 2) (make-Const "louie"))
,(make-PopEnvironment 1 1)))])
(test (machine-env (run m)) '("hewie" "louie")))
(let* ([m (new-machine `(,(make-PushEnvironment 3)
,(make-AssignImmediateStatement (make-EnvLexicalReference 0) (make-Const "hewie"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 1) (make-Const "dewey"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 2) (make-Const "louie"))
,(make-PopEnvironment 1 2)))])
(test (machine-env (run m)) '("hewie" "dewey")))
(let* ([m (new-machine `(,(make-PushEnvironment 3)
,(make-AssignImmediateStatement (make-EnvLexicalReference 0) (make-Const "hewie"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 1) (make-Const "dewey"))
,(make-AssignImmediateStatement (make-EnvLexicalReference 2) (make-Const "louie"))
,(make-PopEnvironment 2 1)))])
(test (machine-env (run m)) '("hewie")))