[fpc-devel] Blackfin support
DrDiettrich1 at aol.com
Thu Jul 15 22:37:21 CEST 2010
Sergei Gorelkin schrieb:
>> Not necessarily. When all currently used files reside in memory, every
>> (recorded) token can contain an pointer (or offset) into the file
>> buffer. This may reduce the number of required string copies (not yet
>> fully researched).
> You normally shouldn't ever need to process every token this way.
> Language keywords are encoded with enumeration type. Everything else is
> put into hashtable, so you typically need only as much string copies as
> there are distinct identifiers in the file.
That's okay, in detail when the uniquely cased names have to be stored.
> Besides, shortstring copies
> are pretty cheap, compared to AnsiStrings.
I'm not sure about possible string operations, that force implicit
conversion between Ansi and ShortString. I observed such performance
hogs in Delphi and other languages, no experience with FPC and the
concrete compiler code.
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