Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/cffi/cffi_opcode.py: 86%

1from .error import VerificationError 

2 

3class CffiOp(object): 

4 def __init__(self, op, arg): 

5 self.op = op 

6 self.arg = arg 

7 

8 def as_c_expr(self): 

9 if self.op is None: 

10 assert isinstance(self.arg, str) 

11 return '(_cffi_opcode_t)(%s)' % (self.arg,) 

12 classname = CLASS_NAME[self.op] 

13 return '_CFFI_OP(_CFFI_OP_%s, %s)' % (classname, self.arg) 

14 

15 def as_python_bytes(self): 

16 if self.op is None and self.arg.isdigit(): 

17 value = int(self.arg) # non-negative: '-' not in self.arg 

18 if value >= 2**31: 

19 raise OverflowError("cannot emit %r: limited to 2**31-1" 

20 % (self.arg,)) 

21 return format_four_bytes(value) 

22 if isinstance(self.arg, str): 

23 raise VerificationError("cannot emit to Python: %r" % (self.arg,)) 

24 return format_four_bytes((self.arg << 8) | self.op) 

25 

26 def __str__(self): 

27 classname = CLASS_NAME.get(self.op, self.op) 

28 return '(%s %s)' % (classname, self.arg) 

29 

30def format_four_bytes(num): 

31 return '\\x%02X\\x%02X\\x%02X\\x%02X' % ( 

32 (num >> 24) & 0xFF, 

33 (num >> 16) & 0xFF, 

34 (num >> 8) & 0xFF, 

35 (num ) & 0xFF) 

36 

37OP_PRIMITIVE = 1 

38OP_POINTER = 3 

39OP_ARRAY = 5 

40OP_OPEN_ARRAY = 7 

41OP_STRUCT_UNION = 9 

42OP_ENUM = 11 

43OP_FUNCTION = 13 

44OP_FUNCTION_END = 15 

45OP_NOOP = 17 

46OP_BITFIELD = 19 

47OP_TYPENAME = 21 

48OP_CPYTHON_BLTN_V = 23 # varargs 

49OP_CPYTHON_BLTN_N = 25 # noargs 

50OP_CPYTHON_BLTN_O = 27 # O (i.e. a single arg) 

51OP_CONSTANT = 29 

52OP_CONSTANT_INT = 31 

53OP_GLOBAL_VAR = 33 

54OP_DLOPEN_FUNC = 35 

55OP_DLOPEN_CONST = 37 

56OP_GLOBAL_VAR_F = 39 

57OP_EXTERN_PYTHON = 41 

58 

59PRIM_VOID = 0 

60PRIM_BOOL = 1 

61PRIM_CHAR = 2 

62PRIM_SCHAR = 3 

63PRIM_UCHAR = 4 

64PRIM_SHORT = 5 

65PRIM_USHORT = 6 

66PRIM_INT = 7 

67PRIM_UINT = 8 

68PRIM_LONG = 9 

69PRIM_ULONG = 10 

70PRIM_LONGLONG = 11 

71PRIM_ULONGLONG = 12 

72PRIM_FLOAT = 13 

73PRIM_DOUBLE = 14 

74PRIM_LONGDOUBLE = 15 

75 

76PRIM_WCHAR = 16 

77PRIM_INT8 = 17 

78PRIM_UINT8 = 18 

79PRIM_INT16 = 19 

80PRIM_UINT16 = 20 

81PRIM_INT32 = 21 

82PRIM_UINT32 = 22 

83PRIM_INT64 = 23 

84PRIM_UINT64 = 24 

85PRIM_INTPTR = 25 

86PRIM_UINTPTR = 26 

87PRIM_PTRDIFF = 27 

88PRIM_SIZE = 28 

89PRIM_SSIZE = 29 

90PRIM_INT_LEAST8 = 30 

91PRIM_UINT_LEAST8 = 31 

92PRIM_INT_LEAST16 = 32 

93PRIM_UINT_LEAST16 = 33 

94PRIM_INT_LEAST32 = 34 

95PRIM_UINT_LEAST32 = 35 

96PRIM_INT_LEAST64 = 36 

97PRIM_UINT_LEAST64 = 37 

98PRIM_INT_FAST8 = 38 

99PRIM_UINT_FAST8 = 39 

100PRIM_INT_FAST16 = 40 

101PRIM_UINT_FAST16 = 41 

102PRIM_INT_FAST32 = 42 

103PRIM_UINT_FAST32 = 43 

104PRIM_INT_FAST64 = 44 

105PRIM_UINT_FAST64 = 45 

106PRIM_INTMAX = 46 

107PRIM_UINTMAX = 47 

108PRIM_FLOATCOMPLEX = 48 

109PRIM_DOUBLECOMPLEX = 49 

110PRIM_CHAR16 = 50 

111PRIM_CHAR32 = 51 

112 

113_NUM_PRIM = 52 

114_UNKNOWN_PRIM = -1 

115_UNKNOWN_FLOAT_PRIM = -2 

116_UNKNOWN_LONG_DOUBLE = -3 

117 

118_IO_FILE_STRUCT = -1 

119 

120PRIMITIVE_TO_INDEX = { 

121 'char': PRIM_CHAR, 

122 'short': PRIM_SHORT, 

123 'int': PRIM_INT, 

124 'long': PRIM_LONG, 

125 'long long': PRIM_LONGLONG, 

126 'signed char': PRIM_SCHAR, 

127 'unsigned char': PRIM_UCHAR, 

128 'unsigned short': PRIM_USHORT, 

129 'unsigned int': PRIM_UINT, 

130 'unsigned long': PRIM_ULONG, 

131 'unsigned long long': PRIM_ULONGLONG, 

132 'float': PRIM_FLOAT, 

133 'double': PRIM_DOUBLE, 

134 'long double': PRIM_LONGDOUBLE, 

135 'float _Complex': PRIM_FLOATCOMPLEX, 

136 'double _Complex': PRIM_DOUBLECOMPLEX, 

137 '_Bool': PRIM_BOOL, 

138 'wchar_t': PRIM_WCHAR, 

139 'char16_t': PRIM_CHAR16, 

140 'char32_t': PRIM_CHAR32, 

141 'int8_t': PRIM_INT8, 

142 'uint8_t': PRIM_UINT8, 

143 'int16_t': PRIM_INT16, 

144 'uint16_t': PRIM_UINT16, 

145 'int32_t': PRIM_INT32, 

146 'uint32_t': PRIM_UINT32, 

147 'int64_t': PRIM_INT64, 

148 'uint64_t': PRIM_UINT64, 

149 'intptr_t': PRIM_INTPTR, 

150 'uintptr_t': PRIM_UINTPTR, 

151 'ptrdiff_t': PRIM_PTRDIFF, 

152 'size_t': PRIM_SIZE, 

153 'ssize_t': PRIM_SSIZE, 

154 'int_least8_t': PRIM_INT_LEAST8, 

155 'uint_least8_t': PRIM_UINT_LEAST8, 

156 'int_least16_t': PRIM_INT_LEAST16, 

157 'uint_least16_t': PRIM_UINT_LEAST16, 

158 'int_least32_t': PRIM_INT_LEAST32, 

159 'uint_least32_t': PRIM_UINT_LEAST32, 

160 'int_least64_t': PRIM_INT_LEAST64, 

161 'uint_least64_t': PRIM_UINT_LEAST64, 

162 'int_fast8_t': PRIM_INT_FAST8, 

163 'uint_fast8_t': PRIM_UINT_FAST8, 

164 'int_fast16_t': PRIM_INT_FAST16, 

165 'uint_fast16_t': PRIM_UINT_FAST16, 

166 'int_fast32_t': PRIM_INT_FAST32, 

167 'uint_fast32_t': PRIM_UINT_FAST32, 

168 'int_fast64_t': PRIM_INT_FAST64, 

169 'uint_fast64_t': PRIM_UINT_FAST64, 

170 'intmax_t': PRIM_INTMAX, 

171 'uintmax_t': PRIM_UINTMAX, 

172 } 

173 

174F_UNION = 0x01 

175F_CHECK_FIELDS = 0x02 

176F_PACKED = 0x04 

177F_EXTERNAL = 0x08 

178F_OPAQUE = 0x10 

179 

180G_FLAGS = dict([('_CFFI_' + _key, globals()[_key]) 

181 for _key in ['F_UNION', 'F_CHECK_FIELDS', 'F_PACKED', 

182 'F_EXTERNAL', 'F_OPAQUE']]) 

183 

184CLASS_NAME = {} 

185for _name, _value in list(globals().items()): 

186 if _name.startswith('OP_') and isinstance(_value, int): 

187 CLASS_NAME[_value] = _name[3:]