Staging
v0.8.1
v0.8.1
https://github.com/python/cpython
Tip revision: 34214de6ab9ebcb5d63d0e116800d5ee535a38cb authored by Ćukasz Langa on 01 October 2019, 12:58:26 UTC
v3.8.0rc1
v3.8.0rc1
Tip revision: 34214de
generate_opcode_h.py
# This script generates the opcode.h header file.
import sys
import tokenize
header = """
/* Auto-generated by Tools/scripts/generate_opcode_h.py from Lib/opcode.py */
#ifndef Py_OPCODE_H
#define Py_OPCODE_H
#ifdef __cplusplus
extern "C" {
#endif
/* Instruction opcodes for compiled code */
""".lstrip()
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(opcode_py, outfile='Include/opcode.h'):
opcode = {}
if hasattr(tokenize, 'open'):
fp = tokenize.open(opcode_py) # Python 3.2+
else:
fp = open(opcode_py) # Python 2.7
with fp:
code = fp.read()
exec(code, opcode)
opmap = opcode['opmap']
with open(outfile, 'w') as fobj:
fobj.write(header)
for name in opcode['opname']:
if name in opmap:
fobj.write("#define %-23s %3s\n" % (name, opmap[name]))
if name == 'POP_EXCEPT': # Special entry for HAVE_ARGUMENT
fobj.write("#define %-23s %3d\n" %
('HAVE_ARGUMENT', opcode['HAVE_ARGUMENT']))
fobj.write(footer)
print("%s regenerated from %s" % (outfile, opcode_py))
if __name__ == '__main__':
main(sys.argv[1], sys.argv[2])