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Conf: Allowing conf scope to be explicitly read only

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Maria Matejka 2023-06-13 11:09:41 +02:00 committed by Ondrej Zajicek
parent 51f2e7afaf
commit 6b95353ebd
2 changed files with 8 additions and 2 deletions
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5
conf/cf-lex.l
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@ -559,6 +559,9 @@ static inline void cf_swap_soft_scope(struct config *conf);
static struct symbol *
cf_new_symbol(struct sym_scope *scope, pool *p, struct linpool *lp, const byte *c)
{
if (scope->readonly)
cf_error("Unknown symbol %s", c);
struct symbol *s;
uint l = strlen(c);
@ -712,6 +715,8 @@ cf_lex_init(int is_cli, struct config *c)
sym->class = SYM_KEYWORD;
sym->keyword = k;
}
global_root_scope->readonly = 1;
}
ifs_head = ifs = push_ifs(NULL);

5
conf/conf.h
View File

@ -137,9 +137,10 @@ struct sym_scope {
HASH(struct symbol) hash; /* Local symbol hash */
uint slots; /* Variable slots */
byte active; /* Currently entered */
byte block; /* No independent stack frame */
byte soft_scopes; /* Number of soft scopes above */
byte active:1; /* Currently entered */
byte block:1; /* No independent stack frame */
byte readonly:1; /* Do not add new symbols */
};
extern struct sym_scope *global_root_scope;