[#BOO-95] custom macro syntax - jira.codehaus.org

Boo

custom macro syntax

Created: 16/Aug/04 03:35 PM Updated: 09/Dec/07 01:13 PM

Component/s:

Parser, Compiler

Affects Version/s:

None

Fix Version/s:

0.8.1

Time Tracking:

Not Specified

Description

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Feature complete with code literals, splicing and the 'macro' macro.

macro performTransaction:
    args = performTransaction.Arguments
    return [|
        _transaction = $(args[0]).BeginTransaction()
        try:
            $(performTransaction.Block)
            _transaction.Commit()
        except:
            _transaction.Revert()
            raise
        ensure:
            _transaction.End()
    |]

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Alex Peake - 17/Apr/05 12:31 PM

Have you looked at the implementation in Nemerele?

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Sorin Ionescu - 17/Apr/05 06:25 PM

Personally, I like the way macros are written now. While they are a
little harder to write, they are easier to read. Plus, the more
easier macros is to create, the more they will be abused. I've seen
C++ code that does not look like C++ anymore due to macro abuse.

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dennis peterson - 01/Jun/05 03:37 PM

I don't think a feature should be harder than necessary, just to keep people from using it

...for a counterexample, look at Lisp (and Scheme), where macros are used almost as much as functions, and everything works out great.