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rhs_start and ... #2582

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vicuna opened this issue Oct 12, 2000 · 2 comments
Closed

rhs_start and ... #2582

vicuna opened this issue Oct 12, 2000 · 2 comments
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@vicuna
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vicuna commented Oct 12, 2000

Original bug ID: 200
Reporter: administrator
Status: closed
Resolution: not a bug
Priority: normal
Severity: minor
Category: ~DO NOT USE (was: OCaml general)

Bug description

Hi,

I have two remarks about ocaml.

1/ the function "Parsing.rhs_start" gives sometimes erroneous results;
It seems that it is the case when the lexer have several entrypoints

2/ is there any fundamental reason to restrict the pattern-matching in
the "try-with" construction?

exception Toto of int*int;;

exception Toto of int * int

try raise (Toto(3,2));(4,4)

with Toto(res)-> res
;;
Characters 33-42:
The constructor Toto expects 2 argument(s),
but is here applied to 1 argument(s)

Best regards,

Amok.
@vicuna
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vicuna commented Oct 12, 2000

Comment author: administrator

Salut Amokrane,

On Thu, Oct 12, 2000 at 01:58:45PM +0200, Amokrane.SAIBI@simulog.fr wrote:

exception Toto of int*int;;

try raise (Toto(3,2));(4,4)

with Toto(res)-> res
;;
Characters 33-42:
The constructor Toto expects 2 argument(s),

C'est parce que la déclaration "Toto of intint" définit un constructeur
avec 2 paramètres, ce qui est différent d'un constructeur avec un seul
paramètre de type couple ("Toto of (intint)").

J'avais suggéré que l'on écrive de tels constructeurs avec la syntaxe
"currifiée" (Toto 3 2 et non Toto(3, 2)), ce qui aide à comprendre pourquoi
"with Toto(res)" est incorrect, mais ça n'a pas eu l'air de déclencher
l'enthousiasme des foules...

--
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/

@vicuna
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vicuna commented Jan 12, 2001

Comment author: administrator

Not enough context to understand problem 1.

@vicuna vicuna closed this as completed Jan 12, 2001
@vicuna vicuna added the bug label Mar 19, 2019
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@vicuna