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"""
opcode module - potentially shared between dis and other modules which
operate on bytecodes (e.g. peephole optimizers).
"""
__all__ = ["cmp_op", "stack_effect", "hascompare", "opname", "opmap",
"HAVE_ARGUMENT", "EXTENDED_ARG", "hasarg", "hasconst", "hasname",
"hasjump", "hasjrel", "hasjabs", "hasfree", "haslocal", "hasexc"]
import _opcode
from _opcode import stack_effect
from _opcode_metadata import (_specializations, _specialized_opmap, opmap,
HAVE_ARGUMENT, MIN_INSTRUMENTED_OPCODE)
EXTENDED_ARG = opmap['EXTENDED_ARG']
opname = ['<%r>' % (op,) for op in range(max(opmap.values()) + 1)]
for op, i in opmap.items():
opname[i] = op
cmp_op = ('<', '<=', '==', '!=', '>', '>=')
# These lists are documented as part of the dis module's API
hasarg = [op for op in opmap.values() if _opcode.has_arg(op)]
hasconst = [op for op in opmap.values() if _opcode.has_const(op)]
hasname = [op for op in opmap.values() if _opcode.has_name(op)]
hasjump = [op for op in opmap.values() if _opcode.has_jump(op)]
hasjrel = hasjump # for backward compatibility
hasjabs = []
hasfree = [op for op in opmap.values() if _opcode.has_free(op)]
haslocal = [op for op in opmap.values() if _opcode.has_local(op)]
hasexc = [op for op in opmap.values() if _opcode.has_exc(op)]
_intrinsic_1_descs = _opcode.get_intrinsic1_descs()
_intrinsic_2_descs = _opcode.get_intrinsic2_descs()
_nb_ops = _opcode.get_nb_ops()
hascompare = [opmap["COMPARE_OP"]]
_cache_format = {
"LOAD_GLOBAL": {
"counter": 1,
"index": 1,
"module_keys_version": 1,
"builtin_keys_version": 1,
},
"BINARY_OP": {
"counter": 1,
},
"UNPACK_SEQUENCE": {
"counter": 1,
},
"COMPARE_OP": {
"counter": 1,
},
"BINARY_SUBSCR": {
"counter": 1,
},
"FOR_ITER": {
"counter": 1,
},
"LOAD_SUPER_ATTR": {
"counter": 1,
},
"LOAD_ATTR": {
"counter": 1,
"version": 2,
"keys_version": 2,
"descr": 4,
},
"STORE_ATTR": {
"counter": 1,
"version": 2,
"index": 1,
},
"CALL": {
"counter": 1,
"func_version": 2,
},
"STORE_SUBSCR": {
"counter": 1,
},
"SEND": {
"counter": 1,
},
"JUMP_BACKWARD": {
"counter": 1,
},
"TO_BOOL": {
"counter": 1,
"version": 2,
},
}
_inline_cache_entries = {
name : sum(value.values()) for (name, value) in _cache_format.items()
}
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