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
|
# Copyright 2012 Jussi Pakkanen
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
class Node():
def __init__(self, lineno):
self.line_number = lineno
def lineno(self):
return self.line_number
class Expression(Node):
pass
class Statement(Node):
pass
class BoolExpression(Expression):
def __init__(self, value, lineno):
Expression.__init__(self, lineno)
self.value = value
assert(isinstance(value, bool))
def get_value(self):
return self.value
class AtomExpression(Expression):
def __init__(self, value, lineno):
Expression.__init__(self, lineno)
self.value = value
def get_value(self):
return self.value
class StringExpression(Expression):
def __init__(self, value, lineno):
Expression.__init__(self, lineno)
self.value = value
class IntExpression(Expression):
def __init__(self, value, lineno):
Expression.__init__(self, lineno)
self.value = value
def get_value(self):
return self.value
class AtomStatement(Statement):
def __init__(self, value, lineno):
Statement.__init__(self, lineno)
assert(type(value) == type(''))
self.value = value
def get_value(self):
return self.value
class BoolStatement(Statement):
def __init__(self, value, lineno):
Statement.__init__(self, lineno)
assert(isinstance(value, bool))
self.value = value
def get_value(self):
return self.value
class IntStatement(Statement):
def __init__(self, value, lineno):
Statement.__init__(self, lineno)
assert(isinstance(value, int))
self.value = value
def get_value(self):
return self.value
class AndStatement(Statement):
def __init__(self, left, right):
Statement.__init__(self, left.lineno)
self.left = left
self.right = right
class OrStatement(Statement):
def __init__(self, left, right):
Statement.__init__(self, left.lineno)
self.left = left
self.right = right
class NotStatement(Statement):
def __init__(self, val):
Statement.__init__(self, val.lineno)
self.val = val
class IfStatement(Statement):
def __init__(self, clause, trueblock, falseblock, lineno):
Statement.__init__(self, lineno)
self.clause = clause
self.trueblock = trueblock
self.falseblock = falseblock
def get_clause(self):
return self.clause
def get_trueblock(self):
return self.trueblock
def get_falseblock(self):
return self.falseblock
class Comparison(Statement):
def __init__(self, first, ctype, second, lineno):
Statement.__init__(self, lineno)
self.first = first
self.ctype = ctype
self.second = second
def get_first(self):
return self.first
def get_ctype(self):
return self.ctype
def get_second(self):
return self.second
class ArrayStatement(Statement):
def __init__(self, args, lineno):
Statement.__init__(self, lineno)
self.args = args
def get_args(self):
return self.args
class StringStatement(Statement):
def __init__(self, value, lineno):
assert(type(value) == type(''))
Statement.__init__(self, lineno)
self.value = value
def get_value(self):
return self.value
class FunctionCall(Statement):
def __init__(self, func_name, arguments, lineno):
Statement.__init__(self, lineno)
self.func_name = func_name
self.arguments = arguments
def get_function_name(self):
return self.func_name.value
class MethodCall(Statement):
def __init__(self, invokable, method_name, arguments, lineno):
Statement.__init__(self, lineno)
self.invokable = invokable
self.method_name = method_name
self.arguments = arguments
class Assignment(Statement):
def __init__(self, var_name, value, lineno):
Statement.__init__(self, lineno)
self.var_name = var_name
self.value = value
class CodeBlock(Statement):
def __init__(self, lineno):
Statement.__init__(self, lineno)
self.statements = []
def prepend(self, statement):
self.statements = [statement] + self.statements
def get_statements(self):
return self.statements
class Arguments(Statement):
def __init__(self, lineno):
Statement.__init__(self, lineno)
self.arguments = []
self.kwargs = {}
self.order_error = False
def prepend(self, statement):
self.arguments = [statement] + self.arguments
def set_kwarg(self, name, value):
if self.num_args() > 0:
self.order_error = True
self.kwargs[name.get_value()] = value
def num_args(self):
return len(self.arguments)
def num_kwargs(self):
return len(self.kwargs)
def incorrect_order(self):
return self.order_error
def __len__(self):
return self.num_args() # Fixme
def statement_from_expression(expr):
if isinstance(expr, AtomExpression):
return AtomStatement(expr.value, expr.lineno())
if isinstance(expr, StringExpression):
return StringStatement(expr.value, expr.lineno())
if isinstance(expr, BoolExpression):
return BoolStatement(expr.value, expr.lineno())
if isinstance(expr, IntExpression):
return IntStatement(expr.get_value(), expr.lineno())
raise RuntimeError('Can not convert unknown expression to a statement.')
|
