summaryrefslogtreecommitdiff
path: root/script/vm/generic.lua
blob: fafda518c057eff0b83f76c25b3426913241cab9 (plain)
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
---@class vm
local vm      = require 'vm.vm'

---@class parser.object
---@field _generic vm.generic

---@class vm.generic
---@field sign  vm.sign
---@field proto vm.object
local mt = {}
mt.__index = mt
mt.type = 'generic'

---@param source    parser.object
---@param resolved? table<string, vm.node>
---@return parser.object | vm.node
local function cloneObject(source, resolved)
    if not source then
        return nil
    end
    if not resolved then
        return source
    end
    if source.type == 'doc.generic.name' then
        local key = source[1]
        local newName = {
            type   = source.type,
            start  = source.start,
            finish = source.finish,
            parent = source.parent,
            [1]    = source[1],
        }
        if resolved[key] then
            vm.setNode(newName, resolved[key], true)
        end
        return newName
    end
    if source.type == 'doc.type' then
        local newType = {
            type   = source.type,
            start  = source.start,
            finish = source.finish,
            parent = source.parent,
            types  = {},
        }
        for i, typeUnit in ipairs(source.types) do
            local newObj     = cloneObject(typeUnit, resolved)
            newType.types[i] = newObj
        end
        return newType
    end
    if source.type == 'doc.type.arg' then
        local newArg = {
            type    = source.type,
            start   = source.start,
            finish  = source.finish,
            parent  = source.parent,
            name    = source.name,
            extends = cloneObject(source.extends, resolved)
        }
        return newArg
    end
    if source.type == 'doc.type.array' then
        local newArray = {
            type   = source.type,
            start  = source.start,
            finish = source.finish,
            parent = source.parent,
            node   = cloneObject(source.node, resolved),
        }
        return newArray
    end
    if source.type == 'doc.type.table' then
        local newTable = {
            type   = source.type,
            start  = source.start,
            finish = source.finish,
            parent = source.parent,
            fields = {},
        }
        for i, field in ipairs(source.fields) do
            local newField = {
                type    = field.type,
                start   = field.start,
                finish  = field.finish,
                parent  = newTable,
                name    = cloneObject(field.name, resolved),
                extends = cloneObject(field.extends, resolved),
            }
            newTable.fields[i] = newField
        end
        return newTable
    end
    if source.type == 'doc.type.function' then
        local newDocFunc = {
            type    = source.type,
            start   = source.start,
            finish  = source.finish,
            parent  = source.parent,
            args    = {},
            returns = {},
        }
        for i, arg in ipairs(source.args) do
            local newObj = cloneObject(arg, resolved)
            newObj.optional    = arg.optional
            newDocFunc.args[i] = newObj
        end
        for i, ret in ipairs(source.returns) do
            local newObj  = cloneObject(ret, resolved)
            newObj.parent   = newDocFunc
            newObj.optional = ret.optional
            newDocFunc.returns[i] = cloneObject(ret, resolved)
        end
        return newDocFunc
    end
    return source
end

---@param uri uri
---@param args parser.object
---@return vm.node
function mt:resolve(uri, args)
    local resolved  = self.sign:resolve(uri, args)
    local protoNode = vm.compileNode(self.proto)
    local result = vm.createNode()
    for nd in protoNode:eachObject() do
        local clonedNode = vm.compileNode(cloneObject(nd, resolved))
        result:merge(clonedNode)
    end
    return result
end

---@param proto vm.object
---@param sign  vm.sign
---@return vm.generic
function vm.createGeneric(proto, sign)
    local generic = setmetatable({
        sign  = sign,
        proto = proto,
    }, mt)
    return generic
end