63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
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# This script generates the opcode.h header file.
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import sys
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import tokenize
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header = """/* Auto-generated by Tools/scripts/generate_opcode_h.py */
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#ifndef Py_OPCODE_H
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#define Py_OPCODE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Instruction opcodes for compiled code */
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"""
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footer = """
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/* EXCEPT_HANDLER is a special, implicit block type which is created when
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entering an except handler. It is not an opcode but we define it here
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as we want it to be available to both frameobject.c and ceval.c, while
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remaining private.*/
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#define EXCEPT_HANDLER 257
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enum cmp_op {PyCmp_LT=Py_LT, PyCmp_LE=Py_LE, PyCmp_EQ=Py_EQ, PyCmp_NE=Py_NE,
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PyCmp_GT=Py_GT, PyCmp_GE=Py_GE, PyCmp_IN, PyCmp_NOT_IN,
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PyCmp_IS, PyCmp_IS_NOT, PyCmp_EXC_MATCH, PyCmp_BAD};
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#define HAS_ARG(op) ((op) >= HAVE_ARGUMENT)
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_OPCODE_H */
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"""
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def main(opcode_py, outfile='Include/opcode.h'):
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opcode = {}
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if hasattr(tokenize, 'open'):
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fp = tokenize.open(opcode_py) # Python 3.2+
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else:
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fp = open(opcode_py) # Python 2.7
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with fp:
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code = fp.read()
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exec(code, opcode)
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opmap = opcode['opmap']
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with open(outfile, 'w') as fobj:
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fobj.write(header)
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for name in opcode['opname']:
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if name in opmap:
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fobj.write("#define %-23s %3s\n" % (name, opmap[name]))
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if name == 'POP_EXCEPT': # Special entry for HAVE_ARGUMENT
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fobj.write("#define %-23s %3d\n" %
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('HAVE_ARGUMENT', opcode['HAVE_ARGUMENT']))
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fobj.write(footer)
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print("%s regenerated from %s" % (outfile, opcode_py))
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if __name__ == '__main__':
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main(sys.argv[1], sys.argv[2])
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