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local buildName = require 'core.hover.name'
local buildArg = require 'core.hover.arg'
local buildReturn = require 'core.hover.return'
local buildTable = require 'core.hover.table'
local vm = require 'vm'
local util = require 'utility'
local guide = require 'parser.guide'
local lang = require 'language'
local config = require 'config'
local files = require 'files'
local function asFunction(source, oop)
local name = buildName(source, oop)
local arg = buildArg(source, oop)
local rtn = buildReturn(source)
local lines = {}
lines[1] = ('function %s(%s)'):format(name, arg)
lines[2] = rtn
return table.concat(lines, '\n')
end
local function asDocFunction(source)
local name = buildName(source)
local arg = buildArg(source)
local rtn = buildReturn(source)
local lines = {}
lines[1] = ('function %s(%s)'):format(name, arg)
lines[2] = rtn
return table.concat(lines, '\n')
end
local function asDocTypeName(source)
for _, doc in ipairs(vm.getDocTypes(source[1])) do
if doc.type == 'doc.class.name' then
return 'class ' .. source[1]
end
if doc.type == 'doc.alias.name' then
local extends = doc.parent.extends
return lang.script('HOVER_EXTENDS', vm.getInferType(extends))
end
end
end
local function asValue(source, title)
local name = buildName(source)
local infers = vm.getInfers(source, 'deep')
local type = vm.getInferType(source, 'deep')
local class = vm.getClass(source, 'deep')
local literal = vm.getInferLiteral(source, 'deep')
local cont
if type ~= 'string' and not type:find('%[%]$') then
if #vm.getFields(source, 'deep') > 0
or vm.hasInferType(source, 'table', 'deep') then
cont = buildTable(source)
end
end
local pack = {}
pack[#pack+1] = title
pack[#pack+1] = name .. ':'
if cont and type == 'table' then
type = nil
end
if class then
pack[#pack+1] = class
else
pack[#pack+1] = type
end
if literal then
pack[#pack+1] = '='
pack[#pack+1] = literal
end
if cont then
pack[#pack+1] = cont
end
return table.concat(pack, ' ')
end
local function asLocal(source)
return asValue(source, 'local')
end
local function asGlobal(source)
return asValue(source, 'global')
end
local function asLibrary(source)
return asValue(source, 'global')
end
local function isGlobalField(source)
if source.type == 'field'
or source.type == 'method' then
source = source.parent
end
if source.type == 'setfield'
or source.type == 'getfield'
or source.type == 'setmethod'
or source.type == 'getmethod' then
local node = source.node
if node.type == 'setglobal'
or node.type == 'getglobal' then
return true
end
return isGlobalField(node)
elseif source.type == 'tablefield' then
local parent = source.parent
if parent.type == 'setglobal'
or parent.type == 'getglobal' then
return true
end
return isGlobalField(parent)
else
return false
end
end
local function asField(source)
if isGlobalField(source) then
return asGlobal(source)
end
return asValue(source, 'field')
end
local function asString(source)
local str = source[1]
if type(str) ~= 'string' then
return ''
end
local len = #str
local charLen = util.utf8Len(str, 1, -1)
if len == charLen then
return lang.script('HOVER_STRING_BYTES', len)
else
return lang.script('HOVER_STRING_CHARACTERS', len, charLen)
end
end
local function formatNumber(n)
local str = ('%.10f'):format(n)
str = str:gsub('%.?0*$', '')
return str
end
local function asNumber(source)
if not config.config.hover.viewNumber then
return nil
end
local num = source[1]
if type(num) ~= 'number' then
return nil
end
local uri = guide.getUri(source)
local text = files.getText(uri)
if not text then
return nil
end
local raw = text:sub(source.start, source.finish)
if not raw or not raw:find '[^%-%d%.]' then
return nil
end
return formatNumber(num)
end
return function (source, oop)
if source.type == 'function' then
return asFunction(source, oop)
elseif source.type == 'local'
or source.type == 'getlocal'
or source.type == 'setlocal' then
return asLocal(source)
elseif source.type == 'setglobal'
or source.type == 'getglobal' then
return asGlobal(source)
elseif source.type == 'getfield'
or source.type == 'setfield'
or source.type == 'getmethod'
or source.type == 'setmethod'
or source.type == 'tablefield'
or source.type == 'field'
or source.type == 'method' then
return asField(source)
elseif source.type == 'string' then
return asString(source)
elseif source.type == 'number' then
return asNumber(source)
elseif source.type == 'library' then
return asLibrary(source)
elseif source.type == 'doc.type.function' then
return asDocFunction(source)
elseif source.type == 'doc.type.name' then
return asDocTypeName(source)
end
end
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