Turn several properties of types or variables into flags.

"unsettable" is a property of types.  LINELIST_V and OBSOLETE are
unsettable, meaning that they cannot be set by name.

"contained" is a property of types.  I'm hoping to find a better
name here.  LINELIST_S is "contained" because it always appears
within a LINELIST_V, and as such doesn't need to be dumped ore
copied independently.

"cumulative" is a property of types. Cumulative types can appear
more than once in a torrc without causing a warning, because they
add to each other rather than replacing each other.

"obsolete" is a property of variables.

"marking fragile" is now a command that struct members can accept.

With these changes, confparse and config no longer ever need to
mention CONFIG_TYPE_XYZ values by name.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/lib/confmgt/structvar.h b/src/lib/confmgt/structvar.h
index 92b9b6fc71..e6dbc6d6ec 100644
--- a/src/lib/confmgt/structvar.h
+++ b/src/lib/confmgt/structvar.h
@@ -40,9 +40,14 @@ bool struct_var_eq(const void *a, const void *b,
                    const struct struct_member_t *member);
 bool struct_var_ok(const void *object,
                    const struct struct_member_t *member);
+void struct_var_mark_fragile(void *object,
+                             const struct struct_member_t *member);
 
 const char *struct_var_get_name(const struct struct_member_t *member);
 const char *struct_var_get_typename(const struct struct_member_t *member);
+bool struct_var_is_cumulative(const struct struct_member_t *member);
+bool struct_var_is_settable(const struct struct_member_t *member);
+bool struct_var_is_contained(const struct struct_member_t *member);
 
 int struct_var_kvassign(void *object, const struct config_line_t *line,
                         char **errmsg,