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Pass struct natstr * instead of natid to virtual selectors

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This is because we want to define them in src/lib/global/, and code
there can't use getnatp(), because that requires
src/lib/common/file.c.  Which renders a cnum parameter pretty useless.

Virtual selectors requiring code from common/ could well come up again
in the future, but let's not worry about that now.
This commit is contained in:
Markus Armbruster 2008-03-25 21:36:52 +01:00
parent 44295e43af
commit e5ef3d4840
3 changed files with 39 additions and 38 deletions
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22
include/nsc.h
View file

@ -103,11 +103,11 @@ enum nsc_cat {
* in the context object. I.e. the value is at sym.off + sym.idx *
* SZ, where SZ is the size of the value.
* If sym.get is not null, you obtain the value by calling get() like
* VAL->get(VAL, CNUM, CTXO), where CNUM is the country to use for
* coordinate translation and access control, and CTXO is the context
* object. get() either returns a null pointer and sets VAL->val_as
* to the value, as appropriate for the type. Or it returns another
* context object and sets VAL->val_as.sym for it.
* VAL->get(VAL, NP, CTXO), where NP points to the country to use for
* coordinate translation and access control (null for none), and CTXO
* is the context object. get() either returns a null pointer and
* sets VAL->val_as to the value, as appropriate for the type. Or it
* returns another context object and sets VAL->val_as.sym for it.
*/
struct valstr {
enum nsc_type val_type; /* type of value */
@ -117,7 +117,7 @@ struct valstr {
ptrdiff_t off;
int len;
int idx;
void *(*get)(struct valstr *, natid, void *);
void *(*get)(struct valstr *, struct natstr *, void *);
} sym;
double dbl; /* cat NSC_VAL, type NSC_DOUBLE */
struct { /* cat NSC_VAL, type NSC_STRING, cat NSC_ID */
@ -208,11 +208,11 @@ enum {
* A datum of any other type is either a scalar of that type (if
* ca_len is zero), or an array of ca_len elements of that type.
* If ca_get is not null, the selector is virtual. Values can be
* obtained by calling ca_get(VAL, CNUM, CTXO), where VAL has been
* obtained by calling ca_get(VAL, NP, CTXO), where VAL has been
* initialized my from the selector and an index by nstr_mksymval(),
* CNUM is the country to use for coordinate translation and access
* control, and CTXO is the context object. See struct valstr for
* details.
* NP points to the country to use for coordinate translation and
* access control (null for none), and CTXO is the context object.
* See struct valstr for details.
* If flag NSC_DEITY is set, only to deities can use this selector.
* If flag NSC_EXTRA is set, xdump ignores this selector.
* If flag NSC_CONST is set, the datum can't be changed from its
@ -227,7 +227,7 @@ struct castr {
ptrdiff_t ca_off;
enum nsc_type ca_type;
unsigned short ca_len;
void *(*ca_get)(struct valstr *, natid, void *);
void *(*ca_get)(struct valstr *, struct natstr *, void *);
int ca_table;
int ca_flags;
};