+/* Return the current target set, resolving it first if not present */\r
+struct ir_set_t* ir_linkdata_set\r
+( union ir_setdata_t* linkdata )\r
+{ assert_link(linkdata);\r
+ if (linkdata->link.trg_set == NULL)\r
+ ir_linkdata_resolve_set(linkdata);\r
+ return linkdata->link.trg_set;\r
+}\r
+\r
+/* Resolve and assign the link's target set */\r
+static inline\r
+void ir_linkdata_resolve_set\r
+( union ir_setdata_t* linkdata )\r
+{ struct ir_class_t* class_iter;\r
+ struct ir_namelist_t* namelist_iter,* namelist_iter_last;\r
+ struct ir_setld_t* setld;\r
+ struct ir_classld_t* classld;\r
+ struct ir_set_t* set;\r
+ set = NULL;\r
+ class_iter = NULL;\r
+ assert_link(linkdata);\r
+ setld = linkdata->link.setld;\r
+ if (linkdata->link.setld == NULL)\r
+ eprintf("Link data is invalid\n");\r
+ classld = setld->classld;\r
+ if (classld != NULL)\r
+ { namelist_iter = classld->namelist;\r
+ if (classld->root_class == NULL)\r
+ eprintf("No root class for classld\n");\r
+ class_iter = classld->root_class->nextchild;\r
+ namelist_iter_last = NULL;\r
+ while (class_iter != NULL)\r
+ { if (classnames_identical(class_iter->name, namelist_iter->name))\r
+ { if (namelist_iter == classld->namelist_head)\r
+ break;\r
+ class_iter = class_iter->nextchild;\r
+ namelist_iter_last = namelist_iter;\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ else\r
+ class_iter = class_iter->nextsib;\r
+ }\r
+ if (class_iter == NULL)\r
+ { if (namelist_iter_last)\r
+ eprintf("No such subclass \"%s\" of class \"%s\"\n",\r
+ namelist_iter->name,\r
+ namelist_iter_last->name);\r
+ else\r
+ { wprintf("No such class \"%s\"\n", namelist_iter->name);\r
+ return;\r
+ }\r
+ }\r
+ set = class_iter->root_set;\r
+ }\r
+ else\r
+ set = ir_set_from_ref(setld->ref);\r
+ if (set == NULL)\r
+ eprintf("Initial set resolution failed\n");\r
+ namelist_iter = setld->namelist;\r
+ namelist_iter_last = NULL;\r
+ if (setld->namelist != NULL)\r
+ { while (set != NULL)\r
+ { if (bytes_identical(set->name, namelist_iter->name))\r
+ { if (namelist_iter == setld->namelist_head)\r
+ break;\r
+ set = set->nextchild;\r
+ namelist_iter_last = namelist_iter;\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ else\r
+ set = set->nextsib;\r
+ }\r
+ if (set == NULL)\r
+ { if (namelist_iter_last)\r
+ eprintf("No such subset \"%s\" of set \"%s\"\n",\r
+ namelist_iter->name,\r
+ namelist_iter_last->name);\r
+ else\r
+ eprintf("No such set \"%s\" in class \"%s\"\n",\r
+ namelist_iter->name,\r
+ class_iter->name);\r
+ }\r
+ }\r
+ linkdata->link.trg_set = set;\r
+}\r
+\r
+/* Assign a linkdatas trg_set */\r
+void ir_linkdata_assign_set\r
+( union ir_setdata_t* link, struct ir_set_t* set )\r
+{ assert_link(link);\r
+ link->link.trg_set = set;\r
+}\r
+\r
+/* Assign a linkdatas type */\r
+void ir_linkdata_assign_type\r
+( union ir_setdata_t* link, enum ltype type )\r
+{ assert_link(link);\r
+ link->link.type = type;\r
+}\r
+\r
+/* Get, or generate, the fully qualified name of the link's target set */\r
+uint8_t*\r
+ir_linkdata_dlink_name\r
+( union ir_setdata_t* link )\r
+{ struct ir_namelist_t* namelist_iter;\r
+ struct ir_setld_t* setld;\r
+ struct ir_classld_t* classld;\r
+ uint8_t* bytep;\r
+ size_t bytes;\r
+ char setpass;\r
+ uint8_t delimiter;\r
+ static const uint8_t dlink_prefix[] = { '/', '.', '.', '/' };\r
+# define dlink_prefix_len 4\r
+ assert_link(link);\r
+ if (link->link.dlink != NULL)\r
+ return link->link.dlink;\r
+ bytes = 0;\r
+ setld = link->link.setld;\r
+ if (setld == NULL)\r
+ eprintf("No setld in dlink\n");\r
+ classld = setld->classld;\r
+ if (classld == NULL)\r
+ eprintf("No classld in dlink\n");\r
+ if (classld->root_class != NULL)\r
+ eprintf("Cannot dlink local class \"%s\"\n", classld->root_class->name);\r
+ namelist_iter = classld->namelist;\r
+ setpass = 0;\r
+ count_bytes_in_namelist:\r
+ while (namelist_iter != NULL)\r
+ { bytep = namelist_iter->name;\r
+ while (*bytep++);\r
+ bytes += (bytep - namelist_iter->name);\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ if (setpass == 0)\r
+ { setpass = 1;\r
+ namelist_iter = setld->namelist;\r
+ goto count_bytes_in_namelist;\r
+ }\r
+ bytes += dlink_prefix_len;\r
+ link->link.dlink = stack_alloc(&namepages, bytes);\r
+ for (bytes = 0; bytes < dlink_prefix_len; bytes++)\r
+ link->link.dlink[bytes] = dlink_prefix[bytes];\r
+ namelist_iter = classld->namelist;\r
+ setpass = 0;\r
+ delimiter = APC_CLASS_DELIMITER;\r
+ copy_bytes_in_namelist:\r
+ while (namelist_iter != NULL)\r
+ { bytep = namelist_iter->name;\r
+ while (*bytep)\r
+ link->link.dlink[bytes++] = *bytep++;\r
+ link->link.dlink[bytes++] = delimiter;\r
+ namelist_iter = namelist_iter->nextsib;\r
+ }\r
+ if (setpass == 0)\r
+ { setpass = 1;\r
+ namelist_iter = setld->namelist;\r
+ delimiter = APC_SET_DELIMITER;\r
+ link->link.dlink[bytes - 1] = delimiter; //overwrite last delimiter\r
+ goto copy_bytes_in_namelist;\r
+ }\r
+ link->link.dlink[bytes] = '\0'; //tailing '\0' null termination\r
+ return link->link.dlink;\r
+}\r
+\r