-
Notifications
You must be signed in to change notification settings - Fork 227
/
query.jq
292 lines (269 loc) · 5.38 KB
/
query.jq
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
# null
def _query_null:
{term: {type: "TermTypeNull"}};
# . -> (.)
def _query_query:
{ term:
{ type: "TermTypeQuery"
, query: .
}
};
# string
def _query_string($str):
{ term:
{ type: "TermTypeString"
, str: {str: $str}
}
};
# .
def _query_ident:
{term: {type: "TermTypeIdentity"}};
def _query_is_ident:
.term.type == "TermTypeIdentity";
# a($args...) -> b($args...)
def _query_func_rename(name):
.term.func.name = name;
# $name($args)
def _query_func($name; $args):
{ term:
{ type: "TermTypeFunc"
, func:
{ args: $args
, name: $name
}
}
};
def _query_func($name):
_query_func($name; null);
def _query_func_name:
.term.func.name;
def _query_func_args:
.term.func.args;
def _query_is_func:
.term.type == "TermTypeFunc";
def _query_is_func($name):
_query_is_func and _query_func_name == $name;
def _query_is_string:
.term.type == "TermTypeString";
def _query_string_str:
.term.str.str;
def _query_empty:
_query_func("empty");
# l | r
def _query_pipe(l; r):
{ op: "|"
, left: l
, right: r
};
# . -> [.]
def _query_array:
( . as $q
| { term:
{ type: "TermTypeArray"
, array: {}
}
}
| if $q then .term.array.query = $q end
);
# {} -> {}
def _query_object:
{ term:
{ object:
{ key_vals:
( to_entries
| map(
{ key: .key
, val: .value
}
)
)
}
, type: "TermTypeObject"
}
};
# l,r
def _query_comma(l; r):
{ left: l
, op: ","
, right: r
};
# [1,2,3] -> 1,2,3
# output each query in array
def _query_commas:
if length == 0 then _query_empty
else
reduce .[1:][] as $q (
.[0];
_query_comma(.; $q)
)
end;
# . -> .[]
def _query_iter:
.term.suffix_list = [{iter: true}];
# try b catch c
def _query_try(b; c):
{ term:
{ type: "TermTypeTry"
, try:
{ body: b
, catch: c
}
}
};
def _query_try(b):
_query_try(b; null);
# last query in pipeline
def _query_pipe_last:
if .term.suffix_list then
( .term.suffix_list[-1]
| if .bind.body then
( .bind.body
| _query_pipe_last
)
end
)
elif .op == "|" then
( .right
| _query_pipe_last
)
end;
def _query_transform_pipe_last(f):
def _f:
if .term.suffix_list then
.term.suffix_list[-1] |=
if .bind.body then
.bind.body |= _f
else f
end
elif .op == "|" then
.right |= _f
else f
end;
_f;
# last term, the right most
def _query_last:
if .term.suffix_list then
( .term.suffix_list[-1]
| if .bind.body then
( .bind.body
| _query_last
)
end
)
elif .op then
( .right
| _query_last
)
end;
# TODO: rename? what to call when need to transform suffix_list
def _query_transform_last(f):
def _f:
if .term.suffix_list then
( .
| if .term.suffix_list[-1].bind.body then
.term.suffix_list[-1].bind.body |= _f
else f
end
)
elif .op then
.right |= _f
else f
end;
_f;
def _query_completion_type:
( . as $q
| _query_last
| if .index.name then
{ query:
( $q
| _query_transform_last(
del(.term.suffix_list[-1])
)
)
, type: "index"
, prefix: .index.name
}
elif .term.index.name then
{ query:
( $q
| _query_transform_last(
_query_ident
)
)
, type: "index"
, prefix: .term.index.name
}
elif .term.func then
{ query:
( $q
| _query_transform_last(
_query_ident
)
)
, type:
( .term.func.name
| if startswith("$") then "var"
else "func"
end
)
, prefix: .term.func.name
}
else
null
end
);
# TODO: simplify
def _query_completion(f):
( . as $expr
# HACK: if ends with . or $, add a dummy prefix to make the query
# valid and then trim it later
| ( if (.[-1] | . == "." or . == "$") then "a"
else ""
end
) as $probesuffix
| ($expr + $probesuffix)
| try
( try _query_fromstring
catch .error
# move directives to new root query
| . as {$meta, $imports}
| del(.meta)
| del(.imports)
| _query_completion_type
| . as $c
| if . then
( .query |=
( _query_func("map"; [
_query_pipe(.; _query_try(_query_func($c | f)))
])
| _query_pipe(.; _query_func("add")
)
| .meta = $meta
| .imports = $imports
| _query_tostring
)
| .prefix |= rtrimstr($probesuffix)
)
else
{type: "none"}
end
)
catch {type: "error", name: "", error: .}
);
# query ast to ast of quey itself, used by query rewrite/slurp
def _query_toquery:
( tojson
| _query_fromstring
);
# query rewrite helper, takes care of from/to and directives
def _query_fromtostring(f):
( _query_fromstring
# save and move directives to possible new root query
| . as {$meta, $imports}
| del(.meta)
| del(.imports)
| f
| .meta = $meta
| .imports = $imports
| _query_tostring
);