Remove pointless parameter copying.

include/interpreter.h

@@ -4,19 +4,17 @@
 #include "table.h"
 #include "tree.h"
 #include "impl.h"
+#include "libabacus.h"
+
+struct libab_s;
 
 struct libab_interpreter_s {
-    libab_ref type_num;
-    libab_ref base_table;
-    libab_impl* impl;
+    struct libab_s* ab;
 };
 
 typedef struct libab_interpreter_s libab_interpreter;
 
-void libab_interpreter_init(libab_interpreter* intr,
-                            libab_ref* table,
-                            libab_ref* type_num,
-                            libab_impl* impl);
+void libab_interpreter_init(libab_interpreter* intr, struct libab_s* ab);
 libab_result libab_interpreter_run(libab_interpreter* intr,
                                    libab_tree* tree, libab_ref* into);
 void libab_interpreter_free(libab_interpreter* intr);

include/libabacus.h

@@ -1,11 +1,11 @@
 #ifndef LIBABACUS_H
 #define LIBABACUS_H
 
+#include "interpreter.h"
 #include "custom.h"
 #include "ht.h"
 #include "lexer.h"
 #include "parser.h"
-#include "interpreter.h"
 #include "result.h"
 #include "table.h"
 #include "impl.h"

include/parser.h

@@ -6,13 +6,15 @@
 #include "table.h"
 #include "tree.h"
 
+struct libab_s;
+
 /**
  * The parser that is used by libabacus
  * to store information for converting
  * tokens into trees.
  */
 struct libab_parser_s {
-    libab_ref base_table;
+    struct libab_s* ab;
 };
 
 typedef struct libab_parser_s libab_parser;
@@ -22,7 +24,7 @@ typedef struct libab_parser_s libab_parser;
  * @param parser the parser to intialize.
  * @param table the table of "reserved" entries like operators.
  */
-void libab_parser_init(libab_parser* parser, libab_ref* table);
+void libab_parser_init(libab_parser* parser, struct libab_s* ab);
 /**
  * Parses the given list of tokens into the given tree pointer.
  * @param parser the parser to use for parsing text.