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
|
---@class vm
local vm = require 'vm.vm'
local guide = require 'parser.guide'
---@param object vm.object
---@return string?
local function getNodeName(object)
if object.type == 'global' and object.cate == 'type' then
return object.name
end
if object.type == 'nil'
or object.type == 'boolean'
or object.type == 'number'
or object.type == 'string'
or object.type == 'table'
or object.type == 'function'
or object.type == 'integer' then
return object.type
end
if object.type == 'doc.type.boolean' then
return 'boolean'
end
if object.type == 'doc.type.integer' then
return 'integer'
end
if object.type == 'doc.type.function' then
return 'function'
end
if object.type == 'doc.type.table' then
return 'table'
end
if object.type == 'doc.type.array' then
return 'table'
end
return nil
end
---@param uri uri
---@param child vm.node|string|vm.object
---@param parent vm.node|string|vm.object
---@param mark? table
---@return boolean
function vm.isSubType(uri, child, parent, mark)
mark = mark or {}
if type(child) == 'string' then
child = vm.getGlobal('type', child)
if not child then
return false
end
elseif child.type == 'vm.node' then
for n in child:eachObject() do
if getNodeName(n) and not vm.isSubType(uri, n, parent, mark) then
return false
end
end
return true
end
if type(parent) == 'string' then
parent = vm.getGlobal('type', parent)
if not parent then
return false
end
elseif parent.type == 'vm.node' then
for n in parent:eachObject() do
if getNodeName(n) and vm.isSubType(uri, child, n, mark) then
return true
end
end
if parent:isOptional() then
if vm.isSubType(uri, child, 'nil', mark) then
return true
end
end
return false
end
local childName = getNodeName(child)
local parentName = getNodeName(parent)
if childName == 'any'
or parentName == 'any' then
return true
end
if childName == parentName then
return true
end
-- TODO: check duck
if parentName == 'table' and not guide.isBasicType(childName) then
return true
end
if childName == 'table' and not guide.isBasicType(parentName) then
return true
end
-- check class parent
if not mark[child] then
mark[child] = true
if child.type == 'global' and child.cate == 'type' then
for _, set in ipairs(child:getSets(uri)) do
if set.type == 'doc.class' and set.extends then
for _, ext in ipairs(set.extends) do
if ext.type == 'doc.extends.name'
and vm.isSubType(uri, ext[1], parent, mark) then
return true
end
end
end
end
end
end
return false
end
---@param uri uri
---@param tnode vm.node
---@param knode vm.node
---@return vm.node?
function vm.getTableValue(uri, tnode, knode)
local result = vm.createNode()
for tn in tnode:eachObject() do
if tn.type == 'doc.type.table' then
for _, field in ipairs(tn.fields) do
if vm.isSubType(uri, vm.compileNode(field.name), knode) then
if field.extends then
result:merge(vm.compileNode(field.extends))
end
end
end
end
if tn.type == 'doc.type.array' then
result:merge(vm.compileNode(tn.node))
end
if tn.type == 'table' then
for _, field in ipairs(tn) do
if field.type == 'tableindex' then
if field.value then
result:merge(vm.compileNode(field.value))
end
end
if field.type == 'tablefield' then
if vm.isSubType(uri, knode, 'string') then
if field.value then
result:merge(vm.compileNode(field.value))
end
end
end
if field.type == 'tableexp' then
if vm.isSubType(uri, knode, 'integer') and field.tindex == 1 then
if field.value then
result:merge(vm.compileNode(field.value))
end
end
end
end
end
end
if result:isEmpty() then
return nil
end
return result
end
---@param uri uri
---@param tnode vm.node
---@param vnode vm.node
---@return vm.node?
function vm.getTableKey(uri, tnode, vnode)
local result = vm.createNode()
for tn in tnode:eachObject() do
if tn.type == 'doc.type.table' then
for _, field in ipairs(tn.fields) do
if field.extends then
if vm.isSubType(uri, vm.compileNode(field.extends), vnode) then
result:merge(vm.compileNode(field.name))
end
end
end
end
if tn.type == 'doc.type.array' then
result:merge(vm.declareGlobal('type', 'integer'))
end
if tn.type == 'table' then
for _, field in ipairs(tn) do
if field.type == 'tableindex' then
if field.index then
result:merge(vm.compileNode(field.index))
end
end
if field.type == 'tablefield' then
result:merge(vm.declareGlobal('type', 'string'))
end
if field.type == 'tableexp' then
result:merge(vm.declareGlobal('type', 'integer'))
end
end
end
end
if result:isEmpty() then
return nil
end
return result
end
---@param uri uri
---@param defNode vm.node
---@param refNode vm.node
---@return boolean
function vm.canCastType(uri, defNode, refNode)
local defInfer = vm.getInfer(defNode)
local refInfer = vm.getInfer(refNode)
if defInfer:hasUnknown(uri) then
return true
end
if refInfer:hasUnknown(uri) then
return true
end
-- allow `local x = {};x = nil`,
-- but not allow `local x ---@type table;x = nil`
local allowNil = defInfer:hasType(uri, 'table')
and not defNode:hasType 'table'
-- allow `local x = 0;x = 1.0`,
-- but not allow `local x ---@type integer;x = 1.0`
local allowNumber = defInfer:hasType(uri, 'integer')
and not defNode:hasType 'integer'
if allowNil and vm.isSubType(uri, refNode, 'nil') then
return true
end
if allowNumber and vm.isSubType(uri, refNode, 'number') then
return true
end
if vm.isSubType(uri, refNode, defNode) then
return true
end
return false
end
|