کامپایلر پایتون چیست

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

# Package initialisation

frompypy.interpreter.mixedmodule importMixedModule

classModule(MixedModule):

    appleveldefs={

       'factorial':'app_math.factorial'

    }

    interpleveldefs={

       'e'              :'interp_math.get(space).w_e',

       'pi'             :'interp_math.get(space).w_pi',

       'pow'            :'interp_math.pow',

       'cosh'           :'interp_math.cosh',

       'copysign'       :'interp_math.copysign',

       'ldexp'          :'interp_math.ldexp',

       'hypot'          :'interp_math.hypot',

       'tan'            :'interp_math.tan',

       'asin'           :'interp_math.asin',

       'fabs'           :'interp_math.fabs',

       'floor'          :'interp_math.floor',

       'sqrt'           :'interp_math.sqrt',

       'frexp'          :'interp_math.frexp',

       'degrees'        :'interp_math.degrees',

       'log'            :'interp_math.log',

       'log10'          :'interp_math.log10',

       'fmod'           :'interp_math.fmod',

       'atan'           :'interp_math.atan',

       'ceil'           :'interp_math.ceil',

       'sinh'           :'interp_math.sinh',

       'cos'            :'interp_math.cos',

       'tanh'           :'interp_math.tanh',

       'radians'        :'interp_math.radians',

       'sin'            :'interp_math.sin',

       'atan2'          :'interp_math.atan2',

       'modf'           :'interp_math.modf',

       'exp'            :'interp_math.exp',

       'expm1'          :'interp_math.expm1',

       'acos'           :'interp_math.acos',

       'isinf'          :'interp_math.isinf',

       'isnan'          :'interp_math.isnan',

       'trunc'          :'interp_math.trunc',

       'fsum'           :'interp_math.fsum',

       'asinh'          :'interp_math.asinh',

       'acosh'          :'interp_math.acosh',

       'atanh'          :'interp_math.atanh',

       'log1p'          :'interp_math.log1p',

       'expm1'          :'interp_math.expm1',

       'erf'            :'interp_math.erf',

       'erfc'           :'interp_math.erfc',

       'gamma'          :'interp_math.gamma',

       'lgamma'         :'interp_math.lgamma',

}

importsys,math

INFINITY=1e200*1e200

NAN=abs(INFINITY/INFINITY)

defisinf(x):

    returnx==INFINITY orx==-INFINITY

defisnan(v):

    returnv!=v

defpositiveinf(x):

    returnisinf(x)andx>0.0

defnegativeinf(x):

    returnisinf(x)andx<0.0

deffinite(x):

    returnnotisinf(x)andnotisnan(x)

unary_math_functions=['acos','asin','atan',

                        'ceil','cos','cosh','exp','fabs','floor',

                        'sin','sinh','sqrt','tan','tanh','log','log10',

                        'acosh','asinh','atanh','log1p','expm1']

binary_math_functions=['atan2','fmod','hypot','pow']

classMathTests:

    REGCASES=[]

    forname inunary_math_functions:

        try:

            input,output=(0.3,),getattr(math,name)(0.3)

        exceptAttributeError:

            # cannot test this function

            continue

        exceptValueError:

            input,output=(1.3,),getattr(math,name)(1.3)

        REGCASES.append((name,input,output))

    IRREGCASES=[

        ('atan2',(0.31,0.123),math.atan2(0.31,0.123)),

        ('fmod',  (0.31,0.123),math.fmod(0.31,0.123)),

        ('hypot',(0.31,0.123),math.hypot(0.31,0.123)),

        ('pow',   (0.31,0.123),math.pow(0.31,0.123)),

        ('pow',   (-0.31,0.123),ValueError),

        ('pow',   (-0.5,2.0),0.25),

        ('pow',   (-0.5,1.0),-0.5),

        ('pow',   (-0.5,0.0),1.0),

        ('pow',   (-0.5,-1.0),-2.0),

        ('ldexp',(3.375,2),13.5),

        ('ldexp',(1.0,-10000),0.0),   # underflow

        ('frexp',(-1.25,),lambdax:x==(-0.625,1)),

        ('modf',  (4.25,),lambdax:x==(0.25,4.0)),

        ('modf',  (-4.25,),lambdax:x==(-0.25,-4.0)),

        ('copysign',(1.5,0.0),1.5),

        ('copysign',(1.5,-0.0),-1.5),

        ('copysign',(1.5,INFINITY),1.5),

        ('copysign',(1.5,-INFINITY),-1.5),

        ('copysign',(1.5,NAN),1.5),

        ('copysign',(1.75,-NAN),-1.75),      # special case for -NAN here

        ]

    OVFCASES=[

        ('cosh',(9999.9,),OverflowError),

        ('sinh',(9999.9,),OverflowError),

        ('exp',(9999.9,),OverflowError),

        ('pow',(10.0,40000.0),OverflowError),

        ('ldexp',(10.0,40000),OverflowError),

        ('log',(0.0,),ValueError),#cpython does it this way

        ('log1p',(-1.0,),OverflowError),

        ('log',(-1.,),ValueError),

        ('log10',(0.0,),ValueError),#cpython does it this way

        ]

    INFCASES=[

        ('acos',(INFINITY,),ValueError),

        ('acos',(-INFINITY,),ValueError),

        ('asin',(INFINITY,),ValueError),

        ('asin',(-INFINITY,),ValueError),

        ('atan',(INFINITY,),math.pi/2),

        ('atan',(-INFINITY,),-math.pi/2),

        ('atanh',(INFINITY,),ValueError),

        ('atanh',(-INFINITY,),ValueError),

        ('ceil',(INFINITY,),positiveinf),

        ('ceil',(-INFINITY,),negativeinf),

        ('cos',(INFINITY,),ValueError),

        ('cos',(-INFINITY,),ValueError),

        ('cosh',(INFINITY,),positiveinf),

        ('cosh',(-INFINITY,),positiveinf),

        ('exp',(INFINITY,),positiveinf),

        ('exp',(-INFINITY,),0.0),

        ('fabs',(INFINITY,),positiveinf),

        ('fabs',(-INFINITY,),positiveinf),

        ('floor',(INFINITY,),positiveinf),

        ('floor',(-INFINITY,),negativeinf),

        ('sin',(INFINITY,),ValueError),

        ('sin',(-INFINITY,),ValueError),

        ('sinh',(INFINITY,),positiveinf),

        ('sinh',(-INFINITY,),negativeinf),

        ('sqrt',(INFINITY,),positiveinf),

        ('sqrt',(-INFINITY,),ValueError),

        ('tan',(INFINITY,),ValueError),

        ('tan',(-INFINITY,),ValueError),

        ('tanh',(INFINITY,),1.0),

        ('tanh',(-INFINITY,),-1.0),

        ('log',(INFINITY,),positiveinf),

        ('log',(-INFINITY,),ValueError),

        ('log10',(INFINITY,),positiveinf),

        ('log10',(-INFINITY,),ValueError),

        ('frexp',(INFINITY,),lambdax:isinf(x[0])),

        ('ldexp',(INFINITY,3),positiveinf),

        ('ldexp',(-INFINITY,3),negativeinf),

        ('modf',  (INFINITY,),lambdax:positiveinf(x[1])),

        ('modf',  (-INFINITY,),lambdax:negativeinf(x[1])),

        ('pow',(INFINITY,0.0),1.0),

        ('pow',(INFINITY,0.001),positiveinf),

        ('pow',(INFINITY,-0.001),0.0),

        ('pow',(-INFINITY,0.0),1.0),

        ('pow',(-INFINITY,0.001),positiveinf),

        ('pow',(-INFINITY,-0.001),0.0),

        ('pow',(-INFINITY,3.0),negativeinf),

        ('pow',(-INFINITY,6.0),positiveinf),

        ('pow',(-INFINITY,-13.0),-0.0),

        ('pow',(-INFINITY,-128.0),0.0),

        ('pow',(1.001,INFINITY),positiveinf),

        ('pow',(1.0,   INFINITY),1.0),

        ('pow',(0.999,INFINITY),0.0),

        ('pow',(-0.999,INFINITY),0.0),

        #('pow', (-1.0, INFINITY), 1.0, but strange, could also be -1.0),

        ('pow',(-1.001,INFINITY),positiveinf),

        ('pow',(1.001,-INFINITY),0.0),

        ('pow',(1.0,   -INFINITY),1.0),

        #('pow', (0.999, -INFINITY), positiveinf, but get OverflowError),

        #('pow', (INFINITY, INFINITY), positiveinf, but get OverflowError),

        ('pow',(INFINITY,-INFINITY),0.0),

        ('pow',(-INFINITY,INFINITY),positiveinf),

        ]

    IRREGERRCASES=[

        #

        ('atan2',(INFINITY,-2.3),math.pi/2),

        ('atan2',(INFINITY,0.0),math.pi/2),

        ('atan2',(INFINITY,3.0),math.pi/2),

        #('atan2', (INFINITY, INFINITY), ?strange),

        ('atan2',(2.1,INFINITY),0.0),

        ('atan2',(0.0,INFINITY),0.0),

        ('atan2',(-0.1,INFINITY),-0.0),

        ('atan2',(-INFINITY,0.4),-math.pi/2),

        ('atan2',(2.1,-INFINITY),math.pi),

        ('atan2',(0.0,-INFINITY),math.pi),

        ('atan2',(-0.1,-INFINITY),-math.pi),

        #

        ('fmod',(INFINITY,1.0),ValueError),

        ('fmod',(1.0,INFINITY),1.0),

        ('fmod',(1.0,-INFINITY),1.0),

        ('fmod',(INFINITY,INFINITY),ValueError),

        #

        ('hypot',(-INFINITY,1.0),positiveinf),

        ('hypot',(-2.3,-INFINITY),positiveinf),

        ]

    binary_math_functions=['atan2','fmod','hypot','pow']

    NANCASES1=[

        (name,(NAN,),isnan)forname inunary_math_functions]

    NANCASES2=[

        (name,(NAN,0.1),isnan)forname inbinary_math_functions]

    NANCASES3=[

        (name,(-0.2,NAN),isnan)forname inbinary_math_functions]

    NANCASES4=[

        (name,(NAN,-INFINITY),isnan)forname inbinary_math_functions

                                        ifname!='hypot']

    NANCASES5=[

        (name,(INFINITY,NAN),isnan)forname inbinary_math_functions

                                       ifname!='hypot']

    NANCASES6=[

        ('frexp',(NAN,),lambdax:isnan(x[0])),

        ('ldexp',(NAN,2),isnan),

        ('hypot',(NAN,INFINITY),positiveinf),

        ('hypot',(NAN,-INFINITY),positiveinf),

        ('hypot',(INFINITY,NAN),positiveinf),

        ('hypot',(-INFINITY,NAN),positiveinf),

        ('modf',(NAN,),lambdax:(isnan(x[0])andisnan(x[1]))),

        ]

    # The list of test cases.  Note that various tests import this,

    # notably in rpython/lltypesystem/module and in translator/c/test.

    TESTCASES=(REGCASES+IRREGCASES+OVFCASES+INFCASES+IRREGERRCASES

                 +NANCASES1+NANCASES2+NANCASES3+NANCASES4+NANCASES5

                 +NANCASES6)

defget_tester(expected):

    iftype(expected)istype(Exception):

        deftester(value):

            returnFalse

    elifcallable(expected):

        deftester(value):

            ok=expected(value)

            assertisinstance(ok,bool)

            returnok

    else:

        assertfinite(expected),"badly written test"

        deftester(got):

            gotsign=expectedsign=1

            ifgot<0.0:gotsign=-gotsign

            ifexpected<0.0:expectedsign=-expectedsign

            returnfinite(got)and(got==expected and

                                    gotsign==expectedsign)

    returntester