-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathgetastdot.py
executable file
·248 lines (197 loc) · 8.07 KB
/
getastdot.py
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
import textwrap
from interpreter.lexical_analysis.lexer import Lexer
from interpreter.syntax_analysis.interpreter import NodeVisitor
from interpreter.syntax_analysis.parser import Parser
class ASTVisualizer(NodeVisitor):
def __init__(self, parser):
self.parser = parser
self.nodecount = 1
self.dot_heder = [textwrap.dedent("""
digraph astgraph {
node [shape=box, fontsize=12, fontname="Courier", height=.1];
ranksep=.3;
edge [arrowsize=.5]
""")]
self.dot_body = []
self.dot_footer = ['}']
def visit_Program(self, node):
s = 'node{} [label="Program"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
for child in node.children:
self.visit(child)
s = 'node{} -> node{}\n'.format(node.num, child.num)
self.dot_body.append(s)
def visit_Library(self, node):
s = 'node{} [label="Library: {}"]\n'.format(self.nodecount, node.library)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
def visit_FunCall(self, node):
s = 'node{} [label="FunCall: {} {}"]\n'.format(self.nodecount, node.lib_name, node.fun_name)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
for child in node.args_nodes:
self.visit(child)
s = 'node{} -> node{}\n'.format(node.num, child.num)
self.dot_body.append(s)
def visit_FunImpl(self, node):
s = 'node{} [label="FunImpl: {}"]\n'.format(self.nodecount, node.fun_name)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.args_node)
s = 'node{} -> node{}\n'.format(node.num, node.args_node.num)
self.dot_body.append(s)
self.visit(node.stmts_node)
s = 'node{} -> node{}\n'.format(node.num, node.stmts_node.num)
self.dot_body.append(s)
self.visit(node.ret_node)
s = 'node{} -> node{}\n'.format(node.num, node.ret_node.num)
self.dot_body.append(s)
def visit_Return(self, node):
s = 'node{} [label="Return"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.type_node)
s = 'node{} -> node{}\n'.format(node.num, node.type_node.num)
self.dot_body.append(s)
self.visit(node.var_node)
s = 'node{} -> node{}\n'.format(node.num, node.var_node.num)
self.dot_body.append(s)
def visit_Cond(self, node):
s = 'node{} [label="Cond"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.bool_expr)
s = 'node{} -> node{}\n'.format(node.num, node.bool_expr.num)
self.dot_body.append(s)
self.visit(node.stmts_node)
s = 'node{} -> node{}\n'.format(node.num, node.stmts_node.num)
self.dot_body.append(s)
def visit_Loop(self, node):
s = 'node{} [label="Loop"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.bool_expr)
s = 'node{} -> node{}\n'.format(node.num, node.bool_expr.num)
self.dot_body.append(s)
self.visit(node.stmts_node)
s = 'node{} -> node{}\n'.format(node.num, node.stmts_node.num)
self.dot_body.append(s)
def visit_VarDecl(self, node):
s = 'node{} [label="VarDecl"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.type_node)
s = 'node{} -> node{}\n'.format(node.num, node.type_node.num)
self.dot_body.append(s)
self.visit(node.var_node)
s = 'node{} -> node{}\n'.format(node.num, node.var_node.num)
self.dot_body.append(s)
def visit_Assign(self, node):
s = 'node{} [label="Assign"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.var_node)
s = 'node{} -> node{}\n'.format(node.num, node.var_node.num)
self.dot_body.append(s)
self.visit(node.expr)
s = 'node{} -> node{}\n'.format(node.num, node.expr.num)
self.dot_body.append(s)
def visit_FunDecl(self, node):
s = 'node{} [label="FunDecl: {}"]\n'.format(self.nodecount, node.fun_name)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.type_node)
s = 'node{} -> node{}\n'.format(node.num, node.type_node.num)
self.dot_body.append(s)
self.visit(node.args_node)
s = 'node{} -> node{}\n'.format(node.num, node.args_node.num)
self.dot_body.append(s)
self.visit(node.stmts_node)
s = 'node{} -> node{}\n'.format(node.num, node.stmts_node.num)
self.dot_body.append(s)
def visit_Args(self, node):
s = 'node{} [label="Args"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
for child in node.args:
self.visit(child)
s = 'node{} -> node{}\n'.format(node.num, child.num)
self.dot_body.append(s)
def visit_Stmts(self, node):
s = 'node{} [label="Stmts"]\n'.format(self.nodecount)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
for child in node.stmts:
self.visit(child)
s = 'node{} -> node{}\n'.format(node.num, child.num)
self.dot_body.append(s)
def visit_Type(self, node):
s = 'node{} [label="Type: {}"]\n'.format(self.nodecount, node.type)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
def visit_Var(self, node):
s = 'node{} [label="Var: {}"]\n'.format(self.nodecount, node.var)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
def visit_String(self, node):
s = 'node{} [label="String: {}"]\n'.format(self.nodecount, node.value)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
def visit_BinOp(self, node):
s = 'node{} [label="{}"]\n'.format(self.nodecount, node.op)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.left)
s = 'node{} -> node{}\n'.format(node.num, node.left.num)
self.dot_body.append(s)
self.visit(node.right)
s = 'node{} -> node{}\n'.format(node.num, node.right.num)
self.dot_body.append(s)
def visit_UnOp(self, node):
s = 'node{} [label="{}"]\n'.format(self.nodecount, node.token.type)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
self.visit(node.bool_expr)
s = 'node{} -> node{}\n'.format(node.num, node.bool_expr.num)
self.dot_body.append(s)
def visit_Num(self, node):
s = 'node{} [label="{}"]\n'.format(self.nodecount, node.value)
node.num = self.nodecount
self.nodecount += 1
self.dot_body.append(s)
def genDot(self):
tree = self.parser.parse()
self.visit(tree)
return ''.join(self.dot_heder + self.dot_body + self.dot_footer)
def main():
# argparser = argparse.ArgumentParser()
# argparser.add_argument('fname')
#
# args = argparser.parse_args()
fname = './examples/test1.txt' # args.fname
text = open(fname, 'r').read()
lexer = Lexer(text)
parser = Parser(lexer)
viz = ASTVisualizer(parser)
content = viz.genDot()
print(content)
if __name__ == '__main__':
main()