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kconfig: explicitly introduce expression list

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Rename E_CHOICE to E_LIST to explicitly add support for expression
lists. Add a helper macro expr_list_for_each_sym to more easily iterate
over the list.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Roman Zippel 2008-01-14 04:50:23 +01:00 committed by Sam Ravnborg
parent 0ffce8d944
commit 7a96292335
5 changed files with 24 additions and 20 deletions
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8
scripts/kconfig/confdata.c
View file

@ -312,7 +312,7 @@ int conf_read_simple(const char *name, int def)
int conf_read(const char *name)
{
struct symbol *sym;
struct symbol *sym, *choice_sym;
struct property *prop;
struct expr *e;
int i, flags;
@ -353,9 +353,9 @@ int conf_read(const char *name)
*/
prop = sym_get_choice_prop(sym);
flags = sym->flags;
for (e = prop->expr; e; e = e->left.expr)
if (e->right.sym->visible != no)
flags &= e->right.sym->flags;
expr_list_for_each_sym(prop->expr, e, choice_sym)
if (choice_sym->visible != no)
flags &= choice_sym->flags;
sym->flags &= flags | ~SYMBOL_DEF_USER;
}

16
scripts/kconfig/expr.c
View file

@ -87,7 +87,7 @@ struct expr *expr_copy(struct expr *org)
break;
case E_AND:
case E_OR:
case E_CHOICE:
case E_LIST:
e->left.expr = expr_copy(org->left.expr);
e->right.expr = expr_copy(org->right.expr);
break;
@ -217,7 +217,7 @@ int expr_eq(struct expr *e1, struct expr *e2)
expr_free(e2);
trans_count = old_count;
return res;
case E_CHOICE:
case E_LIST:
case E_RANGE:
case E_NONE:
/* panic */;
@ -648,7 +648,7 @@ struct expr *expr_transform(struct expr *e)
case E_EQUAL:
case E_UNEQUAL:
case E_SYMBOL:
case E_CHOICE:
case E_LIST:
break;
default:
e->left.expr = expr_transform(e->left.expr);
@ -932,7 +932,7 @@ struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symb
break;
case E_SYMBOL:
return expr_alloc_comp(type, e->left.sym, sym);
case E_CHOICE:
case E_LIST:
case E_RANGE:
case E_NONE:
/* panic */;
@ -1000,9 +1000,9 @@ int expr_compare_type(enum expr_type t1, enum expr_type t2)
if (t2 == E_OR)
return 1;
case E_OR:
if (t2 == E_CHOICE)
if (t2 == E_LIST)
return 1;
case E_CHOICE:
case E_LIST:
if (t2 == 0)
return 1;
default:
@ -1053,11 +1053,11 @@ void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *
fn(data, NULL, " && ");
expr_print(e->right.expr, fn, data, E_AND);
break;
case E_CHOICE:
case E_LIST:
fn(data, e->right.sym, e->right.sym->name);
if (e->left.expr) {
fn(data, NULL, " ^ ");
expr_print(e->left.expr, fn, data, E_CHOICE);
expr_print(e->left.expr, fn, data, E_LIST);
}
break;
case E_RANGE:

5
scripts/kconfig/expr.h
View file

@ -31,7 +31,7 @@ typedef enum tristate {
} tristate;
enum expr_type {
E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
};
union expr_data {
@ -48,6 +48,9 @@ struct expr {
#define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
#define EXPR_NOT(dep) (2-(dep))
#define expr_list_for_each_sym(l, e, s) \
for (e = (l); e && (s = e->right.sym); e = e->left.expr)
struct expr_value {
struct expr *expr;
tristate tri;

2
scripts/kconfig/menu.c
View file

@ -331,7 +331,7 @@ void menu_finalize(struct menu *parent)
prop = sym_get_choice_prop(sym);
for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
;
*ep = expr_alloc_one(E_CHOICE, NULL);
*ep = expr_alloc_one(E_LIST, NULL);
(*ep)->right.sym = menu->sym;
}
if (menu->list && (!menu->prompt || !menu->prompt->text)) {

13
scripts/kconfig/symbol.c
View file

@ -247,8 +247,7 @@ static struct symbol *sym_calc_choice(struct symbol *sym)
/* just get the first visible value */
prop = sym_get_choice_prop(sym);
for (e = prop->expr; e; e = e->left.expr) {
def_sym = e->right.sym;
expr_list_for_each_sym(prop->expr, e, def_sym) {
sym_calc_visibility(def_sym);
if (def_sym->visible != no)
return def_sym;
@ -361,12 +360,14 @@ void sym_calc_value(struct symbol *sym)
}
if (sym_is_choice(sym)) {
struct symbol *choice_sym;
int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
prop = sym_get_choice_prop(sym);
for (e = prop->expr; e; e = e->left.expr) {
e->right.sym->flags |= flags;
expr_list_for_each_sym(prop->expr, e, choice_sym) {
choice_sym->flags |= flags;
if (flags & SYMBOL_CHANGED)
sym_set_changed(e->right.sym);
sym_set_changed(choice_sym);
}
}
}
@ -849,7 +850,7 @@ struct property *prop_alloc(enum prop_type type, struct symbol *sym)
struct symbol *prop_get_symbol(struct property *prop)
{
if (prop->expr && (prop->expr->type == E_SYMBOL ||
prop->expr->type == E_CHOICE))
prop->expr->type == E_LIST))
return prop->expr->left.sym;
return NULL;
}