Re: The new try/catch macros

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Thomas Hallgren <thhal(at)mailblocks(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: The new try/catch macros
Date: 2004-08-08 18:54:05
Message-ID: 20597.1091991245@sss.pgh.pa.us
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Thomas Hallgren <thhal(at)mailblocks(dot)com> writes:
> 1. You use a do {...} while(0) construct to wrap the whole thing. This
> actually makes it impossible to write code that does a try/catch within
> a loop that contains code surrounding it since a continue or break will
> then end up in the wrong place.

A continue or break exiting the construct would do the wrong thing
anyway, so I don't see that removing the do{} is very helpful. The
point of having it is to make sure that a try/end try block is
syntactically like a statement, rather than like a { ... } construct.

> 3. IMHO, it's a bit ugly to require parenthesis and semicolons at the
> end of the macros.

This isn't really open for debate, because if we don't put that there,
pg_indent will go nuts.

regards, tom lane

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