Repository navigation
Expand file tree
/
Copy pathtest_fuzz_parser.py
More file actions
355 lines (297 loc) · 13.3 KB
/
Copy pathtest_fuzz_parser.py
File metadata and controls
355 lines (297 loc) · 13.3 KB
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
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
MAX_DEPTH = 2
#class StatementGenerator(BaseGenerator):
# def generate(self, depth): raise NotImplementedError
######################################################################
# Expressions
class ExpressionGenerator(object):
def generate(self, depth): raise NotImplementedError
class BinaryExpression(ExpressionGenerator):
def __init__(self, op):
self.op = op
def generate(self, depth):
exprs = list(MakeExpressionGenerator(depth + 1))
for x in exprs:
for y in exprs:
yield x + ' ' + self.op + ' ' + y
class UnaryExpression(ExpressionGenerator):
def __init__(self, op):
self.op = op
def generate(self, depth):
for x in MakeExpressionGenerator(depth + 1):
yield self.op + ' ' + x
class EmptyExpression(ExpressionGenerator):
def generate(self, depth):
yield ' '
class ConstantExpression(ExpressionGenerator):
def __init__(self, value):
self.value = value
def generate(self, depth):
yield repr(self.value)
class NameExpression(ExpressionGenerator):
def __init__(self, value):
self.value = value
def generate(self, depth):
yield self.value
class InvalidExpression(ExpressionGenerator):
def __init__(self, value):
self.value = value
def generate(self, depth):
yield self.value
class ParenthForm(ExpressionGenerator):
def __init__(self, trailingComma):
self.trailingComma = trailingComma
def generate(self, depth):
subexprs = list(MakeExpressionGenerator(depth + 1))
head = '('
if self.trailingComma:
tail = ', )'
else:
tail = ')'
args3 = [x + ', ' + y + ', ' + z for x in subexprs for y in subexprs for z in subexprs]
args2 = [x + ', ' + y for x in subexprs for y in subexprs]
args1 = [x for x in subexprs]
yield head + tail
for values in args1 + args2 + args3:
yield head + values + tail
class GeneratorExpression(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
for target in MakeExpressionGenerator(depth + 1):
for inTest in MakeExpressionGenerator(depth + 1):
yield '(' + expr + ' for ' + target + ' in ' + inTest + ')'
for cond in MakeExpressionGenerator(depth + 1):
yield '(' + expr + ' for ' + target + ' in ' + inTest + ' if ' + cond + ')'
class DictionaryDisplay(ExpressionGenerator):
def generate(self, depth):
subexprs = list(MakeExpressionGenerator(depth + 1))
args = [x + ': ' + y for x in subexprs for y in subexprs]
yield '{}'
for x in args:
yield '{' + x + '}'
yield '{' + x + ', }'
for x, y in zip(args, args):
yield '{' + x + ', ' + y + '}'
yield '{' + x + ', ' + y + ', }'
class StringConversion(object):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
yield '`' + expr + '`'
class YieldExpression(object):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
yield 'yield ' + expr
yield '( yield ' + expr + ')'
class AttributeExpression(object):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
for name in MakeIdentifierGenerator(depth + 1):
yield expr + '.' + name
class SubscriptionExpression(object):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
yield expr + '[' + subscript + ']'
yield expr + '[' + subscript + ', ]'
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
for subscript2 in MakeExpressionGenerator(depth + 1):
yield expr + '[' + subscript + ', ' + subscript2 + ']'
yield expr + '[' + subscript + ', ' + subscript2 + ', ]'
class SlicingExpression(object):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
yield expr + '[' + subscript + ':]'
#yield expr + '[:' + subscript + ']'
#yield expr + '[' + subscript + '::]'
#yield expr + '[::' + subscript + ']'
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
for subscript2 in MakeExpressionGenerator(depth + 1):
yield expr + '[' + subscript + ': ' + subscript2 + ']'
#yield expr + '[' + subscript + ', ' + subscript2 + ': ]'
#yield expr + '[ :' + subscript + ', ' + subscript2 + ']'
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
for subscript2 in MakeExpressionGenerator(depth + 1):
for subscript3 in MakeExpressionGenerator(depth + 1):
yield expr + '[' + subscript + ': ' + subscript2 + ':' + subscript3 + ']'
class CallExpression(object):
def generate(self, depth):
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
yield expr + '(' + subscript + ')'
yield expr + '(' + subscript + ', )'
yield expr + '(*' + subscript + ')'
yield expr + '(**' + subscript + ', )'
for name in MakeExpressionGenerator(depth + 1):
yield expr + '(' + name + ' = ' + subscript + ')'
for expr in MakeExpressionGenerator(depth + 1):
for subscript in MakeExpressionGenerator(depth + 1):
for subscript2 in MakeExpressionGenerator(depth + 1):
yield expr + '(' + subscript + ', ' + subscript2 + ')'
yield expr + '(' + subscript + ', ' + subscript2 + ', )'
yield expr + '(*' + subscript + ', ' + subscript2 + ')'
yield expr + '(**' + subscript + ', ' + subscript2 + ', )'
yield expr + '(*' + subscript + ', **' + subscript2 + ')'
yield expr + '(**' + subscript + ', *' + subscript2 + ')'
for name in MakeExpressionGenerator(depth + 1):
yield expr + '(' + name + ' = ' + subscript + ', ' + subscript2 + ')'
yield expr + '(' + subscript + ', ' + name + ' = ' + subscript2 + ')'
######################################################################
# Statements
class AssertStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
yield 'assert ' + expr + '\n'
for expr2 in MakeExpressionGenerator(0):
yield 'assert ' + expr + ', ' + expr2 + '\n'
class AssignmentStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
for expr2 in MakeExpressionGenerator(0):
yield expr + ' = ' + expr2 + '\n'
yield expr + ' += ' + expr2 + '\n'
class DelStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
yield 'del ' + expr + '\n'
class PrintStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
yield 'print ' + expr + '\n'
yield 'print ' + expr + ', ' + '\n'
class ReturnStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
yield 'return ' + expr + '\n'
class RaiseStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
yield 'raise ' + expr + '\n'
class PassStatement(ExpressionGenerator):
def generate(self, depth):
yield 'pass\n'
class IfStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
for body in MakeStatementGenerator(depth + 1):
yield 'if ' + expr + ':\n' + body
yield 'if ' + expr + ':\n' + body + 'else:\n' + body
yield 'if ' + expr + ':\n' + body + 'elif ' + expr + ':\n' + body
yield 'if ' + expr + '\n'
class WhileStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
for body in MakeStatementGenerator(depth + 1):
yield 'while ' + expr + ':\n' + body
yield 'while ' + expr + ':\n' + body + 'else:\n' + body
yield 'while' + expr + '\n'
class ForStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
for body in MakeStatementGenerator(depth + 1):
yield 'for ' + expr + 'in ' + expr + ':\n' + body
yield 'for ' + expr + 'in ' + expr + ':\n' + body + 'else:\n' + body
yield 'for ' + expr + 'in ' + expr + '\n'
class ExpressionStatement(ExpressionGenerator):
def generate(self, depth):
for expr in MakeExpressionGenerator(0):
yield expr + '\n'
######################################################################
# Factories
class BinaryMaker(object):
def __init__(self, value):
self.value = value
def __call__(self):
return BinaryExpression(self.value)
def __repr__(self):
return 'BinaryMaker(' + repr(self.value) + ')'
class UnaryMaker(object):
def __init__(self, value):
self.value = value
def __call__(self):
return UnaryExpression(self.value)
def __repr__(self):
return 'UnaryMaker(' + repr(self.value) + ')'
class ConstantMaker(object):
def __init__(self, value):
self.value = value
def __call__(self):
return ConstantExpression(self.value)
def __repr__(self):
return 'ConstantMaker(' + repr(self.value) + ')'
class NameMaker(object):
def __init__(self, value):
self.value = value
def __call__(self):
return NameExpression(self.value)
def __repr__(self):
return 'NameMaker(' + self.value + ')'
class InvalidMaker(object):
def __init__(self, value):
self.value = value
def __call__(self):
return InvalidExpression(self.value)
def __repr__(self):
return 'InvalidMaker(' + self.value + ')'
class ParenthFormMaker(object):
def __init__(self, trailingComma):
self.trailingComma = trailingComma
def __call__(self):
return ParenthForm(self.trailingComma)
def __repr__(self):
return 'ParenthFormMaker(' + self.trailingComma + ')'
identifier_exprs = [NameMaker('foo'), NameMaker('...'), NameMaker('reallylongname' * 200)] # NameMaker('_bar'),
expr_gens = identifier_exprs + \
[BinaryMaker('+'), BinaryMaker('**'), BinaryMaker('<<'), BinaryMaker('&'), BinaryMaker('=='), BinaryMaker('>'), BinaryMaker(' in '), # BinaryMaker('-'), BinaryMaker('|'), BinaryMaker('^'),
UnaryMaker('~'), UnaryMaker(' not '), # UnaryMaker('-'), UnaryMaker('+'),
EmptyExpression,
GeneratorExpression,
DictionaryDisplay,
CallExpression,
AttributeExpression,
SubscriptionExpression,
SlicingExpression,
ConstantMaker(1), ConstantMaker('abc'), ConstantMaker(1L), ConstantMaker(1.0), ConstantMaker(1j),
ParenthFormMaker(False), ParenthFormMaker(True),
StringConversion,
YieldExpression,
InvalidMaker('$'), InvalidMaker('@'), InvalidMaker('!'), InvalidMaker('\\'), #InvalidMaker('\0'),
]
stmt_gens = [IfStatement, PassStatement, ExpressionStatement, WhileStatement, ForStatement, AssertStatement, AssignmentStatement, DelStatement, PrintStatement, ReturnStatement, RaiseStatement]
def MakeExpressionGenerator(depth):
"""yields all possible expressions"""
if depth == MAX_DEPTH:
yield '' # empty expr
else:
for exprGen in expr_gens:
for value in exprGen().generate(depth):
yield value
def Indent(value, depth):
if depth == 0:
return value
indent = ' ' * depth
return indent + value.replace('\n', '\n' + indent)
def MakeStatementGenerator(depth):
"""yields all possible expressions"""
if depth == MAX_DEPTH:
yield '' # empty expr
else:
for stmtGen in stmt_gens:
for value in stmtGen().generate(depth):
yield Indent(value, depth)
def MakeIdentifierGenerator(depth):
for exprGen in identifier_exprs:
for value in exprGen().generate(depth):
yield value
i = 0
for x in MakeStatementGenerator(0):
i += 1
if i % 1000 == 0:
print '.',
try:
compile(x, 'foo', 'exec')
except SyntaxError:
pass
print 'Ran %d tests', i