On Tue, 20 Oct 2009, Alex Strickland wrote:
Hi,
> I was thinking of the following:
> 1. A compiler option to declare a data dictionary declaration so
> that statements of the form:
> workarea->fieldname
> could be validated.
> In the case where a DBF exists it could be used as a kind of
> "include" file, and there would need to be an alias mapping:
> WORKAREA "acc101.dbf" ALIAS accounts
> and:
> accounts->name
> would be validated, and:
> accounts->nane
> would cause a compile time error. As would:
> ackounts->name
> In the case where no dbf exists (perhaps a SQL database or the new
> "mem:" files), or it is not practical to read a dbf then some syntax
> like:
> WORKAREA accounts
> FIELD accounts->name
> FIELD accounts->address ...
You can make it yourself using PP:
#ifndef FIELD_NAMESPACE_OFF
/* declare WORKAREA1 fields */
#xtranslate WORKAREA1-><!field!> => ;;
#error WORKAREA1 does not have field: #<field>
#xtranslate WORKAREA1->name => WORKAREA1->( _FIELD->name )
#xtranslate WORKAREA1->date => WORKAREA1->( _FIELD->date )
#endif
proc main()
? workarea1->name
? workarea1->nane
? workarea1->date
return
best regards,
Przemek
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