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local files = require 'files'
local guide = require 'parser.guide'
local vm = require 'vm'
local getLabel = require 'core.hover.label'
local getDesc = require 'core.hover.description'
local util = require 'utility'
local findSource = require 'core.find-source'
local function getHoverAsFunction(source)
local values = vm.getInfers(source)
local desc = getDesc(source)
local labels = {}
local defs = 0
local protos = 0
local other = 0
local oop = source.type == 'method'
or source.type == 'getmethod'
or source.type == 'setmethod'
for _, value in ipairs(values) do
if value.type == 'function' then
local label = getLabel(value.source, oop)
defs = defs + 1
labels[label] = (labels[label] or 0) + 1
if labels[label] == 1 then
protos = protos + 1
end
else
other = other + 1
end
end
if defs == 1 and other == 0 then
return {
label = next(labels),
source = source,
description = desc,
}
end
-- TODO 翻译
local lines = {}
if defs > 1 then
lines[#lines+1] = ('(%d 个定义，%d 个原型)'):format(defs, protos)
end
if other > 0 then
lines[#lines+1] = ('(%d 个非函数定义)'):format(other)
end
if defs > 1 then
for label, count in util.sortPairs(labels) do
lines[#lines+1] = ('(%d) %s'):format(count, label)
end
else
lines[#lines+1] = next(labels)
end
local label = table.concat(lines, '\n')
return {
label = label,
source = source,
description = desc,
}
end
local function getHoverAsValue(source)
local oop = source.type == 'method'
or source.type == 'getmethod'
or source.type == 'setmethod'
local label = getLabel(source, oop)
local desc = getDesc(source)
return {
label = label,
source = source,
description = desc,
}
end
local function getHover(source)
vm.setSearchLevel(5)
local isFunction = vm.hasInferType(source, 'function')
if isFunction then
return getHoverAsFunction(source)
else
return getHoverAsValue(source)
end
end
local accept = {
['local'] = true,
['setlocal'] = true,
['getlocal'] = true,
['setglobal'] = true,
['getglobal'] = true,
['field'] = true,
['method'] = true,
['string'] = true,
}
local function getHoverByUri(uri, offset)
local ast = files.getAst(uri)
if not ast then
return nil
end
local source = findSource(ast, offset, accept)
if not source then
return nil
end
local hover = getHover(source)
return hover
end
return {
get = getHover,
byUri = getHoverByUri,
}
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