Exercise 3.10

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Jones Bro

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Oct 15, 2013, 11:27:55 AM10/15/13
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hello,

I need help with 3.10

Add an operation list to the language. This operation should
take any number of arguments, and return an expressed value containing the list of
their values. For example,
let x = 4
in list(x, -(x,1), -(x,3))
should return an expressed value that represents the list (4 3 1).

JB

Dorian Ellerbe

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Oct 16, 2013, 7:20:04 PM10/16/13
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Hi,

It would help if you described what you don't understand.

-Dorian

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Marco Morazan

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Oct 17, 2013, 3:07:56 PM10/17/13
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Well, you need to add a list expression to the syntax. You also need to change the denoted and expressed values of your language to now contain lists. Once you have implemented a representation for lists, you need to write down the semantics for list expressions. Finally, you need to implement the semantics as part of your evaluator.

Marco


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Cheers,

Marco

Have a´¨)
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