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4668b000a1
This introduces:
- A new operator // that means floor division (the kind of division
where 1/2 is 0).
- The "future division" statement ("from __future__ import division)
which changes the meaning of the / operator to implement "true
division" (where 1/2 is 0.5).
- New overloadable operators __truediv__ and __floordiv__.
- New slots in the PyNumberMethods struct for true and floor division,
new abstract APIs for them, new opcodes, and so on.
I emphasize that without the future division statement, the semantics
of / will remain unchanged until Python 3.0.
Not yet implemented are warnings (default off) when / is used with int
or long arguments.
This has been on display since 7/31 as SF patch #443474.
Flames to /dev/null.
154 lines
4.2 KiB
C
154 lines
4.2 KiB
C
#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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#define STOP_CODE 0
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#define POP_TOP 1
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#define ROT_TWO 2
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#define ROT_THREE 3
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#define DUP_TOP 4
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#define ROT_FOUR 5
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#define UNARY_POSITIVE 10
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#define UNARY_NEGATIVE 11
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#define UNARY_NOT 12
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#define UNARY_CONVERT 13
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#define UNARY_INVERT 15
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#define BINARY_POWER 19
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#define BINARY_MULTIPLY 20
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#define BINARY_DIVIDE 21
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#define BINARY_MODULO 22
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#define BINARY_ADD 23
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#define BINARY_SUBTRACT 24
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#define BINARY_SUBSCR 25
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#define BINARY_FLOOR_DIVIDE 26
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#define BINARY_TRUE_DIVIDE 27
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#define INPLACE_FLOOR_DIVIDE 28
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#define INPLACE_TRUE_DIVIDE 29
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#define SLICE 30
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/* Also uses 31-33 */
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#define STORE_SLICE 40
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/* Also uses 41-43 */
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#define DELETE_SLICE 50
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/* Also uses 51-53 */
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#define INPLACE_ADD 55
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#define INPLACE_SUBTRACT 56
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#define INPLACE_MULTIPLY 57
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#define INPLACE_DIVIDE 58
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#define INPLACE_MODULO 59
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#define STORE_SUBSCR 60
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#define DELETE_SUBSCR 61
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#define BINARY_LSHIFT 62
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#define BINARY_RSHIFT 63
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#define BINARY_AND 64
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#define BINARY_XOR 65
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#define BINARY_OR 66
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#define INPLACE_POWER 67
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#define GET_ITER 68
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#define PRINT_EXPR 70
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#define PRINT_ITEM 71
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#define PRINT_NEWLINE 72
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#define PRINT_ITEM_TO 73
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#define PRINT_NEWLINE_TO 74
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#define INPLACE_LSHIFT 75
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#define INPLACE_RSHIFT 76
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#define INPLACE_AND 77
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#define INPLACE_XOR 78
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#define INPLACE_OR 79
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#define BREAK_LOOP 80
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#define LOAD_LOCALS 82
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#define RETURN_VALUE 83
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#define IMPORT_STAR 84
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#define EXEC_STMT 85
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#define YIELD_VALUE 86
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#define POP_BLOCK 87
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#define END_FINALLY 88
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#define BUILD_CLASS 89
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#define HAVE_ARGUMENT 90 /* Opcodes from here have an argument: */
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#define STORE_NAME 90 /* Index in name list */
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#define DELETE_NAME 91 /* "" */
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#define UNPACK_SEQUENCE 92 /* Number of sequence items */
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#define FOR_ITER 93
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#define STORE_ATTR 95 /* Index in name list */
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#define DELETE_ATTR 96 /* "" */
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#define STORE_GLOBAL 97 /* "" */
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#define DELETE_GLOBAL 98 /* "" */
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#define DUP_TOPX 99 /* number of items to duplicate */
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#define LOAD_CONST 100 /* Index in const list */
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#define LOAD_NAME 101 /* Index in name list */
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#define BUILD_TUPLE 102 /* Number of tuple items */
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#define BUILD_LIST 103 /* Number of list items */
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#define BUILD_MAP 104 /* Always zero for now */
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#define LOAD_ATTR 105 /* Index in name list */
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#define COMPARE_OP 106 /* Comparison operator */
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#define IMPORT_NAME 107 /* Index in name list */
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#define IMPORT_FROM 108 /* Index in name list */
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#define JUMP_FORWARD 110 /* Number of bytes to skip */
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#define JUMP_IF_FALSE 111 /* "" */
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#define JUMP_IF_TRUE 112 /* "" */
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#define JUMP_ABSOLUTE 113 /* Target byte offset from beginning of code */
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#define FOR_LOOP 114 /* Number of bytes to skip */
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#define LOAD_GLOBAL 116 /* Index in name list */
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#define CONTINUE_LOOP 119 /* Start of loop (absolute) */
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#define SETUP_LOOP 120 /* Target address (absolute) */
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#define SETUP_EXCEPT 121 /* "" */
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#define SETUP_FINALLY 122 /* "" */
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#define LOAD_FAST 124 /* Local variable number */
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#define STORE_FAST 125 /* Local variable number */
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#define DELETE_FAST 126 /* Local variable number */
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#define SET_LINENO 127 /* Current line number */
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#define RAISE_VARARGS 130 /* Number of raise arguments (1, 2 or 3) */
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/* CALL_FUNCTION_XXX opcodes defined below depend on this definition */
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#define CALL_FUNCTION 131 /* #args + (#kwargs<<8) */
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#define MAKE_FUNCTION 132 /* #defaults */
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#define BUILD_SLICE 133 /* Number of items */
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#define MAKE_CLOSURE 134 /* #free vars */
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#define LOAD_CLOSURE 135 /* Load free variable from closure */
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#define LOAD_DEREF 136 /* Load and dereference from closure cell */
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#define STORE_DEREF 137 /* Store into cell */
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/* The next 3 opcodes must be contiguous and satisfy
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(CALL_FUNCTION_VAR - CALL_FUNCTION) & 3 == 1 */
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#define CALL_FUNCTION_VAR 140 /* #args + (#kwargs<<8) */
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#define CALL_FUNCTION_KW 141 /* #args + (#kwargs<<8) */
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#define CALL_FUNCTION_VAR_KW 142 /* #args + (#kwargs<<8) */
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/* Support for opargs more than 16 bits long */
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#define EXTENDED_ARG 143
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/* Comparison operator codes (argument to COMPARE_OP) */
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enum cmp_op {LT=Py_LT, LE=Py_LE, EQ=Py_EQ, NE=Py_NE, GT=Py_GT, GE=Py_GE,
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IN, NOT_IN, IS, IS_NOT, EXC_MATCH, 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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