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Diagnostic Messages in A1
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zma...@gmail.com
Jan 22, 2014, 7:36:13 PM1/22/14
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Assignment 1 says we should "produce appropriate diagnostic messages on standard error" when we are parsing an invalid joosc program. What sort of information is needed in messages? Should we print out the position of invalid tokens in the input file for example?
Ondřej Lhoták
Jan 23, 2014, 11:10:16 AM1/23/14
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On Wed, Jan 22, 2014 at 04:36:13PM -0800, zma...@gmail.com wrote:
> Assignment 1 says we should "produce appropriate diagnostic messages on standard error" when we are parsing an invalid joosc program. What sort of information is needed in messages? Should we print out the position of invalid tokens in the input file for example?
There is no precise required format of the error messages. You should
> Assignment 1 says we should "produce appropriate diagnostic messages on standard error" when we are parsing an invalid joosc program. What sort of information is needed in messages? Should we print out the position of invalid tokens in the input file for example?
use your own judgement to generate messages that you think would be
useful to a programmer using your compiler. Printing the positions
of invalid tokens (and printing the invalid tokens themselves) is an
example of a good error message. You can describe the kinds of error
messages that your compiler produces in your Assignment 1 document,
and explain why you think they are useful messages.
Ondřej
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