| | from .error import VerificationError |
| |
|
| | class CffiOp(object): |
| | def __init__(self, op, arg): |
| | self.op = op |
| | self.arg = arg |
| |
|
| | def as_c_expr(self): |
| | if self.op is None: |
| | assert isinstance(self.arg, str) |
| | return '(_cffi_opcode_t)(%s)' % (self.arg,) |
| | classname = CLASS_NAME[self.op] |
| | return '_CFFI_OP(_CFFI_OP_%s, %s)' % (classname, self.arg) |
| |
|
| | def as_python_bytes(self): |
| | if self.op is None and self.arg.isdigit(): |
| | value = int(self.arg) |
| | if value >= 2**31: |
| | raise OverflowError("cannot emit %r: limited to 2**31-1" |
| | % (self.arg,)) |
| | return format_four_bytes(value) |
| | if isinstance(self.arg, str): |
| | raise VerificationError("cannot emit to Python: %r" % (self.arg,)) |
| | return format_four_bytes((self.arg << 8) | self.op) |
| |
|
| | def __str__(self): |
| | classname = CLASS_NAME.get(self.op, self.op) |
| | return '(%s %s)' % (classname, self.arg) |
| |
|
| | def format_four_bytes(num): |
| | return '\\x%02X\\x%02X\\x%02X\\x%02X' % ( |
| | (num >> 24) & 0xFF, |
| | (num >> 16) & 0xFF, |
| | (num >> 8) & 0xFF, |
| | (num ) & 0xFF) |
| |
|
| | OP_PRIMITIVE = 1 |
| | OP_POINTER = 3 |
| | OP_ARRAY = 5 |
| | OP_OPEN_ARRAY = 7 |
| | OP_STRUCT_UNION = 9 |
| | OP_ENUM = 11 |
| | OP_FUNCTION = 13 |
| | OP_FUNCTION_END = 15 |
| | OP_NOOP = 17 |
| | OP_BITFIELD = 19 |
| | OP_TYPENAME = 21 |
| | OP_CPYTHON_BLTN_V = 23 |
| | OP_CPYTHON_BLTN_N = 25 |
| | OP_CPYTHON_BLTN_O = 27 |
| | OP_CONSTANT = 29 |
| | OP_CONSTANT_INT = 31 |
| | OP_GLOBAL_VAR = 33 |
| | OP_DLOPEN_FUNC = 35 |
| | OP_DLOPEN_CONST = 37 |
| | OP_GLOBAL_VAR_F = 39 |
| | OP_EXTERN_PYTHON = 41 |
| |
|
| | PRIM_VOID = 0 |
| | PRIM_BOOL = 1 |
| | PRIM_CHAR = 2 |
| | PRIM_SCHAR = 3 |
| | PRIM_UCHAR = 4 |
| | PRIM_SHORT = 5 |
| | PRIM_USHORT = 6 |
| | PRIM_INT = 7 |
| | PRIM_UINT = 8 |
| | PRIM_LONG = 9 |
| | PRIM_ULONG = 10 |
| | PRIM_LONGLONG = 11 |
| | PRIM_ULONGLONG = 12 |
| | PRIM_FLOAT = 13 |
| | PRIM_DOUBLE = 14 |
| | PRIM_LONGDOUBLE = 15 |
| |
|
| | PRIM_WCHAR = 16 |
| | PRIM_INT8 = 17 |
| | PRIM_UINT8 = 18 |
| | PRIM_INT16 = 19 |
| | PRIM_UINT16 = 20 |
| | PRIM_INT32 = 21 |
| | PRIM_UINT32 = 22 |
| | PRIM_INT64 = 23 |
| | PRIM_UINT64 = 24 |
| | PRIM_INTPTR = 25 |
| | PRIM_UINTPTR = 26 |
| | PRIM_PTRDIFF = 27 |
| | PRIM_SIZE = 28 |
| | PRIM_SSIZE = 29 |
| | PRIM_INT_LEAST8 = 30 |
| | PRIM_UINT_LEAST8 = 31 |
| | PRIM_INT_LEAST16 = 32 |
| | PRIM_UINT_LEAST16 = 33 |
| | PRIM_INT_LEAST32 = 34 |
| | PRIM_UINT_LEAST32 = 35 |
| | PRIM_INT_LEAST64 = 36 |
| | PRIM_UINT_LEAST64 = 37 |
| | PRIM_INT_FAST8 = 38 |
| | PRIM_UINT_FAST8 = 39 |
| | PRIM_INT_FAST16 = 40 |
| | PRIM_UINT_FAST16 = 41 |
| | PRIM_INT_FAST32 = 42 |
| | PRIM_UINT_FAST32 = 43 |
| | PRIM_INT_FAST64 = 44 |
| | PRIM_UINT_FAST64 = 45 |
| | PRIM_INTMAX = 46 |
| | PRIM_UINTMAX = 47 |
| | PRIM_FLOATCOMPLEX = 48 |
| | PRIM_DOUBLECOMPLEX = 49 |
| | PRIM_CHAR16 = 50 |
| | PRIM_CHAR32 = 51 |
| |
|
| | _NUM_PRIM = 52 |
| | _UNKNOWN_PRIM = -1 |
| | _UNKNOWN_FLOAT_PRIM = -2 |
| | _UNKNOWN_LONG_DOUBLE = -3 |
| |
|
| | _IO_FILE_STRUCT = -1 |
| |
|
| | PRIMITIVE_TO_INDEX = { |
| | 'char': PRIM_CHAR, |
| | 'short': PRIM_SHORT, |
| | 'int': PRIM_INT, |
| | 'long': PRIM_LONG, |
| | 'long long': PRIM_LONGLONG, |
| | 'signed char': PRIM_SCHAR, |
| | 'unsigned char': PRIM_UCHAR, |
| | 'unsigned short': PRIM_USHORT, |
| | 'unsigned int': PRIM_UINT, |
| | 'unsigned long': PRIM_ULONG, |
| | 'unsigned long long': PRIM_ULONGLONG, |
| | 'float': PRIM_FLOAT, |
| | 'double': PRIM_DOUBLE, |
| | 'long double': PRIM_LONGDOUBLE, |
| | 'float _Complex': PRIM_FLOATCOMPLEX, |
| | 'double _Complex': PRIM_DOUBLECOMPLEX, |
| | '_Bool': PRIM_BOOL, |
| | 'wchar_t': PRIM_WCHAR, |
| | 'char16_t': PRIM_CHAR16, |
| | 'char32_t': PRIM_CHAR32, |
| | 'int8_t': PRIM_INT8, |
| | 'uint8_t': PRIM_UINT8, |
| | 'int16_t': PRIM_INT16, |
| | 'uint16_t': PRIM_UINT16, |
| | 'int32_t': PRIM_INT32, |
| | 'uint32_t': PRIM_UINT32, |
| | 'int64_t': PRIM_INT64, |
| | 'uint64_t': PRIM_UINT64, |
| | 'intptr_t': PRIM_INTPTR, |
| | 'uintptr_t': PRIM_UINTPTR, |
| | 'ptrdiff_t': PRIM_PTRDIFF, |
| | 'size_t': PRIM_SIZE, |
| | 'ssize_t': PRIM_SSIZE, |
| | 'int_least8_t': PRIM_INT_LEAST8, |
| | 'uint_least8_t': PRIM_UINT_LEAST8, |
| | 'int_least16_t': PRIM_INT_LEAST16, |
| | 'uint_least16_t': PRIM_UINT_LEAST16, |
| | 'int_least32_t': PRIM_INT_LEAST32, |
| | 'uint_least32_t': PRIM_UINT_LEAST32, |
| | 'int_least64_t': PRIM_INT_LEAST64, |
| | 'uint_least64_t': PRIM_UINT_LEAST64, |
| | 'int_fast8_t': PRIM_INT_FAST8, |
| | 'uint_fast8_t': PRIM_UINT_FAST8, |
| | 'int_fast16_t': PRIM_INT_FAST16, |
| | 'uint_fast16_t': PRIM_UINT_FAST16, |
| | 'int_fast32_t': PRIM_INT_FAST32, |
| | 'uint_fast32_t': PRIM_UINT_FAST32, |
| | 'int_fast64_t': PRIM_INT_FAST64, |
| | 'uint_fast64_t': PRIM_UINT_FAST64, |
| | 'intmax_t': PRIM_INTMAX, |
| | 'uintmax_t': PRIM_UINTMAX, |
| | } |
| |
|
| | F_UNION = 0x01 |
| | F_CHECK_FIELDS = 0x02 |
| | F_PACKED = 0x04 |
| | F_EXTERNAL = 0x08 |
| | F_OPAQUE = 0x10 |
| |
|
| | G_FLAGS = dict([('_CFFI_' + _key, globals()[_key]) |
| | for _key in ['F_UNION', 'F_CHECK_FIELDS', 'F_PACKED', |
| | 'F_EXTERNAL', 'F_OPAQUE']]) |
| |
|
| | CLASS_NAME = {} |
| | for _name, _value in list(globals().items()): |
| | if _name.startswith('OP_') and isinstance(_value, int): |
| | CLASS_NAME[_value] = _name[3:] |
| |
|
