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---@class vm
local vm = require 'vm.vm'
local util = require 'utility'
local guide = require 'parser.guide'
local simpleSwitch
simpleSwitch = util.switch()
: case 'goto'
: call(function (source, pushResult)
if source.node then
pushResult(source.node)
end
end)
: case 'doc.cast.name'
: call(function (source, pushResult)
local loc = guide.getLocal(source, source[1], source.start)
if loc then
pushResult(loc)
end
end)
local searchFieldSwitch = util.switch()
: case 'table'
: call(function (suri, obj, key, pushResult)
for _, field in ipairs(obj) do
if field.type == 'tablefield'
or field.type == 'tableindex' then
if guide.getKeyName(field) == key then
pushResult(field)
end
end
end
end)
: case 'global'
---@param obj vm.object
---@param key string
: call(function (suri, obj, key, pushResult)
if obj.cate == 'variable' then
local newGlobal = vm.getGlobal('variable', obj.name, key)
if newGlobal then
for _, set in ipairs(newGlobal:getSets(suri)) do
pushResult(set)
end
end
end
if obj.cate == 'type' then
vm.getClassFields(suri, obj, key, false, pushResult)
end
end)
: case 'local'
: call(function (suri, obj, key, pushResult)
local sources = vm.getLocalSourcesSets(obj, key)
if sources then
for _, src in ipairs(sources) do
pushResult(src)
end
end
end)
: case 'doc.type.table'
: call(function (suri, obj, key, pushResult)
for _, field in ipairs(obj.fields) do
local fieldKey = field.name
if fieldKey.type == 'doc.field.name' then
if fieldKey[1] == key then
pushResult(field)
end
end
end
end)
local nodeSwitch;nodeSwitch = util.switch()
: case 'field'
: case 'method'
: call(function (source, lastKey, pushResult)
return nodeSwitch(source.parent.type, source.parent, lastKey, pushResult)
end)
: case 'getfield'
: case 'setfield'
: case 'getmethod'
: case 'setmethod'
: case 'getindex'
: case 'setindex'
: call(function (source, lastKey, pushResult)
local parentNode = vm.compileNode(source.node)
local uri = guide.getUri(source)
local key = guide.getKeyName(source)
if type(key) ~= 'string' then
return
end
if lastKey then
key = key .. vm.ID_SPLITE .. lastKey
end
for pn in parentNode:eachObject() do
searchFieldSwitch(pn.type, uri, pn, key, pushResult)
end
return key, source.node
end)
: case 'tableindex'
: case 'tablefield'
: call(function (source, lastKey, pushResult)
if lastKey then
return
end
local tbl = source.parent
local uri = guide.getUri(source)
searchFieldSwitch(tbl.type, uri, tbl, guide.getKeyName(source), pushResult)
end)
: case 'doc.see.field'
: call(function (source, lastKey, pushResult)
if lastKey then
return
end
local parentNode = vm.compileNode(source.parent.name)
local uri = guide.getUri(source)
for pn in parentNode:eachObject() do
searchFieldSwitch(pn.type, uri, pn, source[1], pushResult)
end
end)
---@param source parser.object
---@param pushResult fun(src: parser.object)
local function searchBySimple(source, pushResult)
simpleSwitch(source.type, source, pushResult)
end
---@param source parser.object
---@param pushResult fun(src: parser.object)
local function searchByLocalID(source, pushResult)
local idSources = vm.getLocalSourcesSets(source)
if not idSources then
return
end
for _, src in ipairs(idSources) do
pushResult(src)
end
end
---@param source parser.object
---@param pushResult fun(src: parser.object)
local function searchByParentNode(source, pushResult)
local lastKey
local src = source
while true do
local key, node = nodeSwitch(src.type, src, lastKey, pushResult)
if not key then
break
end
src = node
if lastKey then
lastKey = key .. vm.ID_SPLITE .. lastKey
else
lastKey = key
end
end
end
local function searchByNode(source, pushResult)
local node = vm.compileNode(source)
local suri = guide.getUri(source)
for n in node:eachObject() do
if n.type == 'global' then
for _, set in ipairs(n:getSets(suri)) do
pushResult(set)
end
else
pushResult(n)
end
end
end
---@param source parser.object
---@return parser.object[]
function vm.getDefs(source)
local results = {}
local mark = {}
local hasLocal
local function pushResult(src)
if src.type == 'local' then
if hasLocal then
return
end
hasLocal = true
end
if not mark[src] then
mark[src] = true
if guide.isSet(src)
or guide.isLiteral(src) then
results[#results+1] = src
end
end
end
searchBySimple(source, pushResult)
searchByLocalID(source, pushResult)
searchByParentNode(source, pushResult)
searchByNode(source, pushResult)
return results
end
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