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"""
opcode module - potentially shared between dis and other modules which
operate on bytecodes (e.g. peephole optimizers).
"""
__all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
"haslocal", "hascompare", "hasfree", "opname", "opmap",
"HAVE_ARGUMENT", "EXTENDED_ARG", "hasnargs"]
# It's a chicken-and-egg I'm afraid:
# We're imported before _opcode's made.
# With exception unheeded
# (stack_effect is not needed)
# Both our chickens and eggs are allayed.
# --Larry Hastings, 2013/11/23
try:
from _opcode import stack_effect
__all__.append('stack_effect')
except ImportError:
pass
cmp_op = ('<', '<=', '==', '!=', '>', '>=')
hasconst = []
hasname = []
hasjrel = []
hasjabs = []
haslocal = []
hascompare = []
hasfree = []
hasnargs = [] # unused
opmap = {}
opname = ['<%r>' % (op,) for op in range(256)]
def def_op(name, op):
opname[op] = name
opmap[name] = op
def name_op(name, op):
def_op(name, op)
hasname.append(op)
def jrel_op(name, op):
def_op(name, op)
hasjrel.append(op)
def jabs_op(name, op):
def_op(name, op)
hasjabs.append(op)
# Instruction opcodes for compiled code
# Blank lines correspond to available opcodes
def_op('CACHE', 0)
def_op('POP_TOP', 1)
def_op('PUSH_NULL', 2)
def_op('NOP', 9)
def_op('UNARY_POSITIVE', 10)
def_op('UNARY_NEGATIVE', 11)
def_op('UNARY_NOT', 12)
def_op('UNARY_INVERT', 15)
def_op('BINARY_SUBSCR', 25)
def_op('GET_LEN', 30)
def_op('MATCH_MAPPING', 31)
def_op('MATCH_SEQUENCE', 32)
def_op('MATCH_KEYS', 33)
def_op('PUSH_EXC_INFO', 35)
def_op('CHECK_EXC_MATCH', 36)
def_op('CHECK_EG_MATCH', 37)
def_op('WITH_EXCEPT_START', 49)
def_op('GET_AITER', 50)
def_op('GET_ANEXT', 51)
def_op('BEFORE_ASYNC_WITH', 52)
def_op('BEFORE_WITH', 53)
def_op('END_ASYNC_FOR', 54)
def_op('STORE_SUBSCR', 60)
def_op('DELETE_SUBSCR', 61)
def_op('GET_ITER', 68)
def_op('GET_YIELD_FROM_ITER', 69)
def_op('PRINT_EXPR', 70)
def_op('LOAD_BUILD_CLASS', 71)
def_op('LOAD_ASSERTION_ERROR', 74)
def_op('RETURN_GENERATOR', 75)
def_op('LIST_TO_TUPLE', 82)
def_op('RETURN_VALUE', 83)
def_op('IMPORT_STAR', 84)
def_op('SETUP_ANNOTATIONS', 85)
def_op('YIELD_VALUE', 86)
def_op('ASYNC_GEN_WRAP', 87)
def_op('PREP_RERAISE_STAR', 88)
def_op('POP_EXCEPT', 89)
HAVE_ARGUMENT = 90 # Opcodes from here have an argument:
name_op('STORE_NAME', 90) # Index in name list
name_op('DELETE_NAME', 91) # ""
def_op('UNPACK_SEQUENCE', 92) # Number of tuple items
jrel_op('FOR_ITER', 93)
def_op('UNPACK_EX', 94)
name_op('STORE_ATTR', 95) # Index in name list
name_op('DELETE_ATTR', 96) # ""
name_op('STORE_GLOBAL', 97) # ""
name_op('DELETE_GLOBAL', 98) # ""
def_op('SWAP', 99)
def_op('LOAD_CONST', 100) # Index in const list
hasconst.append(100)
name_op('LOAD_NAME', 101) # Index in name list
def_op('BUILD_TUPLE', 102) # Number of tuple items
def_op('BUILD_LIST', 103) # Number of list items
def_op('BUILD_SET', 104) # Number of set items
def_op('BUILD_MAP', 105) # Number of dict entries
name_op('LOAD_ATTR', 106) # Index in name list
def_op('COMPARE_OP', 107) # Comparison operator
hascompare.append(107)
name_op('IMPORT_NAME', 108) # Index in name list
name_op('IMPORT_FROM', 109) # Index in name list
jrel_op('JUMP_FORWARD', 110) # Number of words to skip
jrel_op('JUMP_IF_FALSE_OR_POP', 111) # Number of words to skip
jrel_op('JUMP_IF_TRUE_OR_POP', 112) # ""
jrel_op('POP_JUMP_FORWARD_IF_FALSE', 114)
jrel_op('POP_JUMP_FORWARD_IF_TRUE', 115)
name_op('LOAD_GLOBAL', 116) # Index in name list
def_op('IS_OP', 117)
def_op('CONTAINS_OP', 118)
def_op('RERAISE', 119)
def_op('COPY', 120)
def_op('BINARY_OP', 122)
jrel_op('SEND', 123) # Number of bytes to skip
def_op('LOAD_FAST', 124) # Local variable number
haslocal.append(124)
def_op('STORE_FAST', 125) # Local variable number
haslocal.append(125)
def_op('DELETE_FAST', 126) # Local variable number
haslocal.append(126)
jrel_op('POP_JUMP_FORWARD_IF_NOT_NONE', 128)
jrel_op('POP_JUMP_FORWARD_IF_NONE', 129)
def_op('RAISE_VARARGS', 130) # Number of raise arguments (1, 2, or 3)
def_op('GET_AWAITABLE', 131)
def_op('MAKE_FUNCTION', 132) # Flags
def_op('BUILD_SLICE', 133) # Number of items
jrel_op('JUMP_BACKWARD_NO_INTERRUPT', 134) # Number of words to skip (backwards)
def_op('MAKE_CELL', 135)
hasfree.append(135)
def_op('LOAD_CLOSURE', 136)
hasfree.append(136)
def_op('LOAD_DEREF', 137)
hasfree.append(137)
def_op('STORE_DEREF', 138)
hasfree.append(138)
def_op('DELETE_DEREF', 139)
hasfree.append(139)
jrel_op('JUMP_BACKWARD', 140) # Number of words to skip (backwards)
def_op('CALL_FUNCTION_EX', 142) # Flags
def_op('EXTENDED_ARG', 144)
EXTENDED_ARG = 144
def_op('LIST_APPEND', 145)
def_op('SET_ADD', 146)
def_op('MAP_ADD', 147)
def_op('LOAD_CLASSDEREF', 148)
hasfree.append(148)
def_op('COPY_FREE_VARS', 149)
def_op('RESUME', 151) # This must be kept in sync with deepfreeze.py
def_op('MATCH_CLASS', 152)
def_op('FORMAT_VALUE', 155)
def_op('BUILD_CONST_KEY_MAP', 156)
def_op('BUILD_STRING', 157)
name_op('LOAD_METHOD', 160)
def_op('LIST_EXTEND', 162)
def_op('SET_UPDATE', 163)
def_op('DICT_MERGE', 164)
def_op('DICT_UPDATE', 165)
def_op('PRECALL', 166)
def_op('CALL', 171)
def_op('KW_NAMES', 172)
hasconst.append(172)
jrel_op('POP_JUMP_BACKWARD_IF_NOT_NONE', 173)
jrel_op('POP_JUMP_BACKWARD_IF_NONE', 174)
jrel_op('POP_JUMP_BACKWARD_IF_FALSE', 175)
jrel_op('POP_JUMP_BACKWARD_IF_TRUE', 176)
del def_op, name_op, jrel_op, jabs_op
_nb_ops = [
("NB_ADD", "+"),
("NB_AND", "&"),
("NB_FLOOR_DIVIDE", "//"),
("NB_LSHIFT", "<<"),
("NB_MATRIX_MULTIPLY", "@"),
("NB_MULTIPLY", "*"),
("NB_REMAINDER", "%"),
("NB_OR", "|"),
("NB_POWER", "**"),
("NB_RSHIFT", ">>"),
("NB_SUBTRACT", "-"),
("NB_TRUE_DIVIDE", "/"),
("NB_XOR", "^"),
("NB_INPLACE_ADD", "+="),
("NB_INPLACE_AND", "&="),
("NB_INPLACE_FLOOR_DIVIDE", "//="),
("NB_INPLACE_LSHIFT", "<<="),
("NB_INPLACE_MATRIX_MULTIPLY", "@="),
("NB_INPLACE_MULTIPLY", "*="),
("NB_INPLACE_REMAINDER", "%="),
("NB_INPLACE_OR", "|="),
("NB_INPLACE_POWER", "**="),
("NB_INPLACE_RSHIFT", ">>="),
("NB_INPLACE_SUBTRACT", "-="),
("NB_INPLACE_TRUE_DIVIDE", "/="),
("NB_INPLACE_XOR", "^="),
]
_specializations = {
"BINARY_OP": [
"BINARY_OP_ADAPTIVE",
"BINARY_OP_ADD_FLOAT",
"BINARY_OP_ADD_INT",
"BINARY_OP_ADD_UNICODE",
"BINARY_OP_INPLACE_ADD_UNICODE",
"BINARY_OP_MULTIPLY_FLOAT",
"BINARY_OP_MULTIPLY_INT",
"BINARY_OP_SUBTRACT_FLOAT",
"BINARY_OP_SUBTRACT_INT",
],
"BINARY_SUBSCR": [
"BINARY_SUBSCR_ADAPTIVE",
"BINARY_SUBSCR_DICT",
"BINARY_SUBSCR_GETITEM",
"BINARY_SUBSCR_LIST_INT",
"BINARY_SUBSCR_TUPLE_INT",
],
"CALL": [
"CALL_ADAPTIVE",
"CALL_PY_EXACT_ARGS",
"CALL_PY_WITH_DEFAULTS",
],
"COMPARE_OP": [
"COMPARE_OP_ADAPTIVE",
"COMPARE_OP_FLOAT_JUMP",
"COMPARE_OP_INT_JUMP",
"COMPARE_OP_STR_JUMP",
],
"EXTENDED_ARG": [
"EXTENDED_ARG_QUICK",
],
"JUMP_BACKWARD": [
"JUMP_BACKWARD_QUICK",
],
"LOAD_ATTR": [
"LOAD_ATTR_ADAPTIVE",
"LOAD_ATTR_INSTANCE_VALUE",
"LOAD_ATTR_MODULE",
"LOAD_ATTR_SLOT",
"LOAD_ATTR_WITH_HINT",
],
"LOAD_CONST": [
"LOAD_CONST__LOAD_FAST",
],
"LOAD_FAST": [
"LOAD_FAST__LOAD_CONST",
"LOAD_FAST__LOAD_FAST",
],
"LOAD_GLOBAL": [
"LOAD_GLOBAL_ADAPTIVE",
"LOAD_GLOBAL_BUILTIN",
"LOAD_GLOBAL_MODULE",
],
"LOAD_METHOD": [
"LOAD_METHOD_ADAPTIVE",
"LOAD_METHOD_CLASS",
"LOAD_METHOD_MODULE",
"LOAD_METHOD_NO_DICT",
"LOAD_METHOD_WITH_DICT",
"LOAD_METHOD_WITH_VALUES",
],
"PRECALL": [
"PRECALL_ADAPTIVE",
"PRECALL_BOUND_METHOD",
"PRECALL_BUILTIN_CLASS",
"PRECALL_BUILTIN_FAST_WITH_KEYWORDS",
"PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS",
"PRECALL_NO_KW_BUILTIN_FAST",
"PRECALL_NO_KW_BUILTIN_O",
"PRECALL_NO_KW_ISINSTANCE",
"PRECALL_NO_KW_LEN",
"PRECALL_NO_KW_LIST_APPEND",
"PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST",
"PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS",
"PRECALL_NO_KW_METHOD_DESCRIPTOR_O",
"PRECALL_NO_KW_STR_1",
"PRECALL_NO_KW_TUPLE_1",
"PRECALL_NO_KW_TYPE_1",
"PRECALL_PYFUNC",
],
"RESUME": [
"RESUME_QUICK",
],
"STORE_ATTR": [
"STORE_ATTR_ADAPTIVE",
"STORE_ATTR_INSTANCE_VALUE",
"STORE_ATTR_SLOT",
"STORE_ATTR_WITH_HINT",
],
"STORE_FAST": [
"STORE_FAST__LOAD_FAST",
"STORE_FAST__STORE_FAST",
],
"STORE_SUBSCR": [
"STORE_SUBSCR_ADAPTIVE",
"STORE_SUBSCR_DICT",
"STORE_SUBSCR_LIST_INT",
],
"UNPACK_SEQUENCE": [
"UNPACK_SEQUENCE_ADAPTIVE",
"UNPACK_SEQUENCE_LIST",
"UNPACK_SEQUENCE_TUPLE",
"UNPACK_SEQUENCE_TWO_TUPLE",
],
}
_specialized_instructions = [
opcode for family in _specializations.values() for opcode in family
]
_specialization_stats = [
"success",
"failure",
"hit",
"deferred",
"miss",
"deopt",
]
_cache_format = {
"LOAD_GLOBAL": {
"counter": 1,
"index": 1,
"module_keys_version": 2,
"builtin_keys_version": 1,
},
"BINARY_OP": {
"counter": 1,
},
"UNPACK_SEQUENCE": {
"counter": 1,
},
"COMPARE_OP": {
"counter": 1,
"mask": 1,
},
"BINARY_SUBSCR": {
"counter": 1,
"type_version": 2,
"func_version": 1,
},
"LOAD_ATTR": {
"counter": 1,
"version": 2,
"index": 1,
},
"STORE_ATTR": {
"counter": 1,
"version": 2,
"index": 1,
},
"LOAD_METHOD": {
"counter": 1,
"type_version": 2,
"dict_offset": 1,
"keys_version": 2,
"descr": 4,
},
"CALL": {
"counter": 1,
"func_version": 2,
"min_args": 1,
},
"PRECALL": {
"counter": 1,
},
"STORE_SUBSCR": {
"counter": 1,
},
}
_inline_cache_entries = [
sum(_cache_format.get(opname[opcode], {}).values()) for opcode in range(256)
]