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+/***********************************************************
+Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Netherlands.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the names of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+
+/* Definitions for compiled intermediate code */
+
+
+/* An intermediate code fragment contains:
+ - a string that encodes the instructions,
+ - a list of the constants,
+ - and a list of the names used. */
+
+typedef struct {
+ OB_HEAD
+ stringobject *co_code; /* instruction opcodes */
+ object *co_consts; /* list of immutable constant objects */
+ object *co_names; /* list of stringobjects */
+ object *co_filename; /* string */
+} codeobject;
+
+extern typeobject Codetype;
+
+#define is_codeobject(op) ((op)->ob_type == &Codetype)
+
+
+/* Public interface */
+codeobject *compile PROTO((struct _node *, char *));