From 02d23a212a1e8e45a29e06d3f91e119610b682a3 Mon Sep 17 00:00:00 2001
From: Kushal Das <kushaldas@gmail.com>
Date: Tue, 15 Apr 2014 23:50:06 +0530
Subject: Closes Issue 17861: Autogenerate Include/opcode.h from opcode.py.

It includes required changes in Makefile.pre.in and configure.ac
among other files.
---
 Tools/scripts/generate_opcode_h.py | 53 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Tools/scripts/generate_opcode_h.py

(limited to 'Tools/scripts/generate_opcode_h.py')

diff --git a/Tools/scripts/generate_opcode_h.py b/Tools/scripts/generate_opcode_h.py
new file mode 100644
index 00000000000..b315491cb14
--- /dev/null
+++ b/Tools/scripts/generate_opcode_h.py
@@ -0,0 +1,53 @@
+# This script generates the opcode.h header file.
+
+import sys
+if len(sys.argv) > 0:
+    sys.path.insert(0, sys.argv[1])
+# Importing module from our given src directory.
+import opcode
+header = """/* Auto-generated by Tools/scripts/generate_opcode_h.py */
+#ifndef Py_OPCODE_H
+#define Py_OPCODE_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+    /* Instruction opcodes for compiled code */
+"""
+
+footer = """
+/* EXCEPT_HANDLER is a special, implicit block type which is created when
+   entering an except handler. It is not an opcode but we define it here
+   as we want it to be available to both frameobject.c and ceval.c, while
+   remaining private.*/
+#define EXCEPT_HANDLER 257
+
+
+enum cmp_op {PyCmp_LT=Py_LT, PyCmp_LE=Py_LE, PyCmp_EQ=Py_EQ, PyCmp_NE=Py_NE,
+                PyCmp_GT=Py_GT, PyCmp_GE=Py_GE, PyCmp_IN, PyCmp_NOT_IN,
+                PyCmp_IS, PyCmp_IS_NOT, PyCmp_EXC_MATCH, PyCmp_BAD};
+
+#define HAS_ARG(op) ((op) >= HAVE_ARGUMENT)
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_OPCODE_H */
+"""
+
+
+def main(outfile='Include/opcode.h'):
+    with open(outfile, 'w') as fobj:
+        fobj.write(header)
+        for name in opcode.opname:
+            if name in opcode.opmap:
+                fobj.write("#define %-20s\t%-3s\n" % (name, opcode.opmap[name]))
+            if name == 'POP_EXCEPT': # Special entry for HAVE_ARGUMENT
+                fobj.write("#define %-20s\t%-3d\n" %
+                            ('HAVE_ARGUMENT', opcode.HAVE_ARGUMENT))
+        fobj.write(footer)
+
+
+if __name__ == '__main__':
+    main(sys.argv[2])
-- 
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