Eolian: Fix bad behavior when the .eo is incorrect

In this case, the section 'implements' contains bad information about the
function to override. If the first (at least) function is correct, it
will never fail but use the last correct information retrieved from the
database.
The patch fixes it by checking the result of the database function
eolian_implement_information_get.

@fix

1 files changed, 12 insertions, 10 deletions

diff --git a/src/bin/eolian/eo1_generator.c b/src/bin/eolian/eo1_generator.c
index c8f5829b35..67d5f634c6 100644
--- a/src/bin/eolian/eo1_generator.c
+++ b/src/bin/eolian/eo1_generator.c
@@ -624,20 +624,22 @@ eo_source_end_generate(const Eolian_Class class, Eina_Strbuf *buf)
    Eolian_Implement impl_desc;
    EINA_LIST_FOREACH(eolian_class_implements_list_get(class), itr, impl_desc)
      {
-        Eolian_Class impl_class;
-        Eolian_Function_Type ftype;
         _eolian_class_vars impl_env;
-        Eolian_Function fnid;
+        char implname[0xFF];
+        Eolian_Class impl_class = NULL;
+        Eolian_Function_Type ftype;
+        Eolian_Function fnid = NULL;
         const char *funcname;
+        char *tp = implname;
 
-        eolian_implement_information_get(impl_desc, &impl_class, &fnid, &ftype);
-        _class_env_create(impl_class, NULL, &impl_env);
-        funcname = eolian_function_name_get(fnid);
+        if (eolian_implement_information_get(impl_desc, &impl_class, &fnid, &ftype))
+          {
+             _class_env_create(impl_class, NULL, &impl_env);
+             funcname = eolian_function_name_get(fnid);
 
-        char implname[0xFF];
-        char *tp = implname;
-        sprintf(implname, "%s_%s", class_env.full_classname, impl_env.full_classname);
-        eina_str_tolower(&tp);
+             sprintf(implname, "%s_%s", class_env.full_classname, impl_env.full_classname);
+             eina_str_tolower(&tp);
+          }
 
         if (!fnid)
           {