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shortfixednowrror
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88 lines (84 loc) · 2.01 KB
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> (let ((z 3) (a 5) (x (lambda (x y) (- x (+ y z))))) (let ((z 19) (a 5)) (funcall x z a)))
ABSTRACT SYNTAX:
List:
Seq:
Symbol: LET
Seq:
List:
Seq:
List:
Seq:
Symbol: Z
Seq:
Num: 3
Seq:
List:
Seq:
Symbol: A
Seq:
Num: 5
Seq:
List:
Seq:
Symbol: X
Seq:
List:
Seq:
Symbol: LAMBDA
Seq:
List:
Seq:
Symbol: X
Seq:
Symbol: Y
Seq:
List:
Seq:
Symbol: -
Seq:
Symbol: X
Seq:
List:
Seq:
Symbol: +
Seq:
Symbol: Y
Seq:
Symbol: Z
Seq:
List:
Seq:
Symbol: LET
Seq:
List:
Seq:
List:
Seq:
Symbol: Z
Seq:
Num: 19
Seq:
List:
Seq:
Symbol: A
Seq:
Num: 5
Seq:
List:
Seq:
Symbol: FUNCALL
Seq:
Symbol: X
Seq:
Symbol: Z
Seq:
Symbol: A
----------------
-5
Welcome to DrScheme, version 4.2.1 [3m].
Language: Pretty Big; memory limit: 128 megabytes.
> (let ((z 3) (a 5) (x (lambda (x y) (- x (+ y z))))) (let ((z 19) (a 5)) (x z a)))
. . reference to undefined identifier: z
> (let ((z 17)) (let ((z 3) (a 5) (x (lambda (x y) (- x (+ y z))))) (let ((z 19) (a 5)) (x z a))))
-3
>