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local vm = require 'vm'
local util = require 'utility'
local config = require 'config'
local infer = require 'core.infer'
local await = require 'await'
local function formatKey(key)
if type(key) == 'string' then
if key:match '^[%a_][%w_]*$' then
return key
else
return ('[%s]'):format(util.viewLiteral(key))
end
end
return ('[%s]'):format(key)
end
local function buildAsHash(keys, inferMap, literalMap, reachMax)
local lines = {}
lines[#lines+1] = '{'
for _, key in ipairs(keys) do
local inferView = inferMap[key]
local literalView = literalMap[key]
if literalView then
lines[#lines+1] = (' %s: %s = %s,'):format(formatKey(key), inferView, literalView)
else
lines[#lines+1] = (' %s: %s,'):format(formatKey(key), inferView)
end
end
if reachMax > 0 then
lines[#lines+1] = (' ...(+%d)'):format(reachMax)
end
lines[#lines+1] = '}'
return table.concat(lines, '\n')
end
local function buildAsConst(keys, inferMap, literalMap, reachMax)
table.sort(keys, function (a, b)
return tonumber(literalMap[a]) < tonumber(literalMap[b])
end)
local lines = {}
lines[#lines+1] = '{'
for _, key in ipairs(keys) do
local inferView = inferMap[key]
local literalView = literalMap[key]
if literalView then
lines[#lines+1] = (' %s: %s = %s,'):format(formatKey(key), inferView, literalView)
else
lines[#lines+1] = (' %s: %s,'):format(formatKey(key), inferView)
end
end
if reachMax > 0 then
lines[#lines+1] = (' ...(+%d)'):format(reachMax)
end
lines[#lines+1] = '}'
return table.concat(lines, '\n')
end
local typeSorter = {
['string'] = 1,
['number'] = 2,
['boolean'] = 3,
}
local function getKeyMap(fields)
local keys = {}
local mark = {}
for _, field in ipairs(fields) do
local key = vm.getKeyName(field)
local tp = vm.getKeyType(field)
if tp == 'number' or tp == 'integer' then
key = tonumber(key)
elseif tp == 'boolean' then
key = key == 'true'
end
if key and not mark[key] then
mark[key] = true
keys[#keys+1] = key
end
end
table.sort(keys, function (a, b)
local ta = typeSorter[type(a)]
local tb = typeSorter[type(b)]
if ta == tb then
return tostring(a) < tostring(b)
else
return ta < tb
end
end)
return keys
end
return function (source)
local maxFields = config.get 'Lua.hover.previewFields'
if maxFields <= 0 then
return 'table'
end
local fields = vm.getRefs(source, '*')
local keys = getKeyMap(fields)
if #keys == 0 then
return '{}'
end
local inferMap = {}
local literalMap = {}
local reachMax = #keys - maxFields
if #keys > maxFields then
for i = maxFields + 1, #keys do
keys[i] = nil
end
end
local isConsts = true
for i = 1, #keys do
await.delay()
local key = keys[i]
inferMap[key] = infer.searchAndViewInfers(source, key)
literalMap[key] = infer.searchAndViewLiterals(source, key)
if not tonumber(literalMap[key]) then
isConsts = false
end
end
local result
if isConsts then
result = buildAsConst(keys, inferMap, literalMap, reachMax)
else
result = buildAsHash(keys, inferMap, literalMap, reachMax)
end
--if timeUp then
-- result = ('\n--%s\n%s'):format(lang.script.HOVER_TABLE_TIME_UP, result)
--end
return result
end
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