intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 217 insertions, 0 deletions

diff --git a/contrib/tools/python3/src/Lib/opcode.py b/contrib/tools/python3/src/Lib/opcode.py
new file mode 100644
index 00000000000..ac1aa535f66
--- /dev/null
+++ b/contrib/tools/python3/src/Lib/opcode.py
@@ -0,0 +1,217 @@
+
+"""
+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('POP_TOP', 1)
+def_op('ROT_TWO', 2)
+def_op('ROT_THREE', 3)
+def_op('DUP_TOP', 4)
+def_op('DUP_TOP_TWO', 5)
+def_op('ROT_FOUR', 6)
+
+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_MATRIX_MULTIPLY', 16)
+def_op('INPLACE_MATRIX_MULTIPLY', 17)
+
+def_op('BINARY_POWER', 19)
+def_op('BINARY_MULTIPLY', 20)
+
+def_op('BINARY_MODULO', 22)
+def_op('BINARY_ADD', 23)
+def_op('BINARY_SUBTRACT', 24)
+def_op('BINARY_SUBSCR', 25)
+def_op('BINARY_FLOOR_DIVIDE', 26)
+def_op('BINARY_TRUE_DIVIDE', 27)
+def_op('INPLACE_FLOOR_DIVIDE', 28)
+def_op('INPLACE_TRUE_DIVIDE', 29)
+
+def_op('RERAISE', 48)
+def_op('WITH_EXCEPT_START', 49)
+def_op('GET_AITER', 50)
+def_op('GET_ANEXT', 51)
+def_op('BEFORE_ASYNC_WITH', 52)
+
+def_op('END_ASYNC_FOR', 54)
+def_op('INPLACE_ADD', 55)
+def_op('INPLACE_SUBTRACT', 56)
+def_op('INPLACE_MULTIPLY', 57)
+
+def_op('INPLACE_MODULO', 59)
+def_op('STORE_SUBSCR', 60)
+def_op('DELETE_SUBSCR', 61)
+def_op('BINARY_LSHIFT', 62)
+def_op('BINARY_RSHIFT', 63)
+def_op('BINARY_AND', 64)
+def_op('BINARY_XOR', 65)
+def_op('BINARY_OR', 66)
+def_op('INPLACE_POWER', 67)
+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('YIELD_FROM', 72)
+def_op('GET_AWAITABLE', 73)
+def_op('LOAD_ASSERTION_ERROR', 74)
+def_op('INPLACE_LSHIFT', 75)
+def_op('INPLACE_RSHIFT', 76)
+def_op('INPLACE_AND', 77)
+def_op('INPLACE_XOR', 78)
+def_op('INPLACE_OR', 79)
+
+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('POP_BLOCK', 87)
+
+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('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 bytes to skip
+jabs_op('JUMP_IF_FALSE_OR_POP', 111) # Target byte offset from beginning of code
+jabs_op('JUMP_IF_TRUE_OR_POP', 112)  # ""
+jabs_op('JUMP_ABSOLUTE', 113)        # ""
+jabs_op('POP_JUMP_IF_FALSE', 114)    # ""
+jabs_op('POP_JUMP_IF_TRUE', 115)     # ""
+
+name_op('LOAD_GLOBAL', 116)     # Index in name list
+
+def_op('IS_OP', 117)
+def_op('CONTAINS_OP', 118)
+
+jabs_op('JUMP_IF_NOT_EXC_MATCH', 121)
+jrel_op('SETUP_FINALLY', 122)   # Distance to target address
+
+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)
+
+def_op('RAISE_VARARGS', 130)    # Number of raise arguments (1, 2, or 3)
+def_op('CALL_FUNCTION', 131)    # #args
+def_op('MAKE_FUNCTION', 132)    # Flags
+def_op('BUILD_SLICE', 133)      # Number of items
+def_op('LOAD_CLOSURE', 135)
+hasfree.append(135)
+def_op('LOAD_DEREF', 136)
+hasfree.append(136)
+def_op('STORE_DEREF', 137)
+hasfree.append(137)
+def_op('DELETE_DEREF', 138)
+hasfree.append(138)
+
+def_op('CALL_FUNCTION_KW', 141)  # #args + #kwargs
+def_op('CALL_FUNCTION_EX', 142)  # Flags
+
+jrel_op('SETUP_WITH', 143)
+
+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('EXTENDED_ARG', 144)
+EXTENDED_ARG = 144
+
+jrel_op('SETUP_ASYNC_WITH', 154)
+
+def_op('FORMAT_VALUE', 155)
+def_op('BUILD_CONST_KEY_MAP', 156)
+def_op('BUILD_STRING', 157)
+
+name_op('LOAD_METHOD', 160)
+def_op('CALL_METHOD', 161)
+
+def_op('LIST_EXTEND', 162)
+def_op('SET_UPDATE', 163)
+def_op('DICT_MERGE', 164)
+def_op('DICT_UPDATE', 165)
+
+del def_op, name_op, jrel_op, jabs_op