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
|
from operator import attrgetter
from typing import Callable
from graphql.language import (
ast,
Node,
parse_value,
is_definition_node,
is_executable_definition_node,
is_selection_node,
is_value_node,
is_const_value_node,
is_type_node,
is_type_system_definition_node,
is_type_definition_node,
is_type_system_extension_node,
is_type_extension_node,
)
all_ast_nodes = sorted(
[
node_type()
for node_type in vars(ast).values()
if type(node_type) is type
and issubclass(node_type, Node)
and not node_type.__name__.startswith("Const")
],
key=attrgetter("kind"),
)
def filter_nodes(predicate: Callable[[Node], bool]):
return [node.kind for node in all_ast_nodes if predicate(node)]
def describe_ast_node_predicates():
def check_definition_node():
assert filter_nodes(is_definition_node) == [
"definition",
"directive_definition",
"enum_type_definition",
"enum_type_extension",
"enum_value_definition",
"executable_definition",
"field_definition",
"fragment_definition",
"input_object_type_definition",
"input_object_type_extension",
"input_value_definition",
"interface_type_definition",
"interface_type_extension",
"object_type_definition",
"object_type_extension",
"operation_definition",
"scalar_type_definition",
"scalar_type_extension",
"schema_definition",
"type_definition",
"type_extension",
"type_system_definition",
"union_type_definition",
"union_type_extension",
]
def check_executable_definition_node():
assert filter_nodes(is_executable_definition_node) == [
"executable_definition",
"fragment_definition",
"operation_definition",
]
def check_selection_node():
assert filter_nodes(is_selection_node) == [
"field",
"fragment_spread",
"inline_fragment",
"selection",
]
def check_value_node():
assert filter_nodes(is_value_node) == [
"boolean_value",
"enum_value",
"float_value",
"int_value",
"list_value",
"null_value",
"object_value",
"string_value",
"value",
"variable",
]
def check_const_value_node():
assert is_const_value_node(parse_value('"value"')) is True
assert is_const_value_node(parse_value("$var")) is False
assert is_const_value_node(parse_value('{ field: "value" }')) is True
assert is_const_value_node(parse_value("{ field: $var }")) is False
assert is_const_value_node(parse_value('[ "value" ]')) is True
assert is_const_value_node(parse_value("[ $var ]")) is False
def check_type_node():
assert filter_nodes(is_type_node) == [
"list_type",
"named_type",
"non_null_type",
"type",
]
def check_type_system_definition_node():
assert filter_nodes(is_type_system_definition_node) == [
"directive_definition",
"enum_type_definition",
"enum_type_extension",
"input_object_type_definition",
"input_object_type_extension",
"interface_type_definition",
"interface_type_extension",
"object_type_definition",
"object_type_extension",
"scalar_type_definition",
"scalar_type_extension",
"schema_definition",
"type_definition",
"type_extension",
"type_system_definition",
"union_type_definition",
"union_type_extension",
]
def check_type_definition_node():
assert filter_nodes(is_type_definition_node) == [
"enum_type_definition",
"input_object_type_definition",
"interface_type_definition",
"object_type_definition",
"scalar_type_definition",
"type_definition",
"union_type_definition",
]
def check_type_system_extension_node():
assert filter_nodes(is_type_system_extension_node) == [
"enum_type_extension",
"input_object_type_extension",
"interface_type_extension",
"object_type_extension",
"scalar_type_extension",
"schema_extension",
"type_extension",
"union_type_extension",
]
def check_type_extension_node():
assert filter_nodes(is_type_extension_node) == [
"enum_type_extension",
"input_object_type_extension",
"interface_type_extension",
"object_type_extension",
"scalar_type_extension",
"type_extension",
"union_type_extension",
]
|
