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local function findFieldBySource(positions, source, vm, result)
if source.type == 'name' and source[1] == result.key then
local obj = source.bind
if obj.type == 'field' then
vm:eachInfo(obj, function (info)
if info.type == 'set' and info.source == source then
positions[#positions+1] = {
source.start,
source.finish,
source.uri,
}
end
end)
end
end
end
local function findFieldByName(positions, vm, result)
for _, source in pairs(vm.results.sources) do
findFieldBySource(positions, source, vm, result)
end
end
local function parseResultAcrossUri(positions, vm, result)
-- 跨越文件时，遍历的是值的绑定信息
result.value:eachInfo(function (info)
if info.type == 'set' and info.source.uri == result.value.uri then
positions[1] = {
info.source.start,
info.source.finish,
info.source.uri,
}
end
end)
if #positions == 0 then
result.value:eachInfo(function (info)
if info.type == 'return' and info.source.uri == result.value.uri then
positions[1] = {
info.source.start,
info.source.finish,
info.source.uri,
}
end
end)
end
if #positions == 0 then
positions[1] = {
0, 0,
result.value.uri,
}
end
end
local function findFieldCrossUriByName(positions, vm, result, lsp)
if not lsp then
return
end
local parentValue = result.parentValue
if not parentValue then
return
end
if parentValue.uri ~= vm.uri then
local destVM = lsp:loadVM(parentValue.uri)
if destVM then
findFieldByName(positions, destVM, result)
end
end
end
local function parseResultAsVar(vm, result, lsp)
local positions = {}
local tp = result.type
if tp == 'local' then
if result.link then
result = result.link
end
if result.value.lib then
return positions
end
if result.value.uri ~= vm.uri then
parseResultAcrossUri(positions, vm, result)
else
vm:eachInfo(result, function (info)
if info.type == 'set' then
positions[#positions+1] = {
info.source.start,
info.source.finish,
info.source.uri,
}
end
end)
end
elseif tp == 'field' then
if result.value.lib then
return positions
end
if result.value.uri ~= vm.uri then
parseResultAcrossUri(positions, vm, result)
else
vm:eachInfo(result, function (info)
if info.type == 'set' then
positions[#positions+1] = {
info.source.start,
info.source.finish,
info.source.uri,
}
end
end)
if #positions == 0 then
findFieldByName(positions, vm, result)
findFieldCrossUriByName(positions, vm, result, lsp)
end
end
elseif tp == 'label' then
vm:eachInfo(result, function (info)
if info.type == 'set' then
positions[#positions+1] = {
info.source.start,
info.source.finish,
}
end
end)
end
return positions
end
local function parseResultAsValue(vm, value, lsp)
local tp = value:getType()
local positions = {}
if tp == 'string' then
-- require 'XXX' 专用
positions[#positions+1] = {
0,
0,
value.uri,
}
end
return positions
end
return function (vm, result, lsp)
if not result then
return nil
end
if result.type == 'value' then
return parseResultAsValue(vm, result, lsp)
else
return parseResultAsVar(vm, result, lsp)
end
end
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