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GRS vs LTRS

Why FPL are (mostly) based on GRS instead of LTRS? Recursive let seems not be so useful, but cyclic links in data makes automatic reasoning very hard and gives another evil source of nontermination.

Perhaps if LTRS was selected we are full of useful total functional languages nowadays.

By vag at 2009-06-14 13:39 | LtU Forum | 37 comments | other blogs | 2853 reads

How important is it to have catchalls and interceptors in a programming language

Ruby has method_missing.

What other languages have solid support for such interceptors?

There is much interest in considering catchalls for a future version of Javascript:
http://wiki.ecmascript.org/doku.php?id=strawman:catchalls

What are the pros and cons of having interceptors in a language?

By faisalv at 2009-06-14 19:05 | LtU Forum | 19 comments | other blogs | 2241 reads