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|
package.path = package.path .. ';3rd/love-api/?.lua'
local lua51 = require 'Lua51'
local api = lua51.require 'love_api'
local fs = require 'bee.filesystem'
local fsu = require 'fs-utility'
local metaPath = fs.path 'meta/3rd/love2d'
local libraryPath = metaPath / 'library'
fs.create_directories(libraryPath)
local knownTypes = {
['nil'] = 'nil',
['any'] = 'any',
['boolean'] = 'boolean',
['number'] = 'number',
['integer'] = 'integer',
['string'] = 'string',
['table'] = 'table',
['function'] = 'function',
['userdata'] = 'userdata',
['lightuserdata'] = 'lightuserdata',
['thread'] = 'thread',
['cdata'] = 'ffi.cdata*',
['light userdata'] = 'lightuserdata',
['Variant'] = 'any',
}
local function trim(name)
name = name:gsub('^%s+', '')
name = name:gsub('%s+$', '')
return name
end
---@param names string
local function getTypeName(names)
local types = {}
names = names:gsub('%sor%s', '|')
for name in names:gmatch '[^|]+' do
name = trim(name)
types[#types+1] = knownTypes[name] or ('love.' .. name)
end
return table.concat(types, '|')
end
local function formatIndex(key)
if key:match '^[%a_][%w_]*$' then
return key
end
return ('[%q]'):format(key)
end
local buildType
local function buildDocTable(tbl)
local fields = {}
for _, field in ipairs(tbl) do
if field.name ~= '...' then
fields[#fields+1] = ('%s: %s'):format(formatIndex(field.name), buildType(field))
end
end
return ('{%s}'):format(table.concat(fields, ', '))
end
function buildType(param)
if param.table then
return buildDocTable(param.table)
end
return getTypeName(param.type)
end
local function buildSuper(tp)
if not tp.supertypes then
return ''
end
local parents = {}
for _, parent in ipairs(tp.supertypes) do
parents[#parents+1] = getTypeName(parent)
end
return (': %s'):format(table.concat(parents, ', '))
end
local function buildDescription(desc)
if desc then
return ('---\n---%s\n---'):format(desc:gsub('([\r\n])', '%1---'))
else
return nil
end
end
local function buildDocFunc(variant)
local params = {}
local returns = {}
for _, param in ipairs(variant.arguments or {}) do
if param.name == '...' then
params[#params+1] = '...'
else
if param.name:find '^[\'"]' then
params[#params+1] = ('%s: %s|%q'):format(param.name:sub(2, -2), getTypeName(param.type), param.name)
else
params[#params+1] = ('%s: %s'):format(param.name, getTypeName(param.type))
end
end
end
for _, rtn in ipairs(variant.returns or {}) do
returns[#returns+1] = ('%s'):format(getTypeName(rtn.type))
end
return ('fun(%s)%s'):format(
table.concat(params, ', '),
#returns > 0 and (':' .. table.concat(returns, ', ')) or ''
)
end
local function buildMultiDocFunc(tp)
local cbs = {}
for _, variant in ipairs(tp.variants) do
cbs[#cbs+1] = buildDocFunc(variant)
end
return table.concat(cbs, '|')
end
local function buildFunction(func, node)
local text = {}
text[#text+1] = buildDescription(func.description)
for i = 2, #func.variants do
local variant = func.variants[i]
text[#text+1] = ('---@overload %s'):format(buildDocFunc(variant))
end
local params = {}
for _, param in ipairs(func.variants[1].arguments or {}) do
for paramName in param.name:gmatch '[%a_][%w_]*' do
params[#params+1] = paramName
text[#text+1] = ('---@param %s%s %s # %s'):format(
paramName,
param.default == nil and '' or '?',
buildType(param),
param.description
)
end
end
for _, rtn in ipairs(func.variants[1].returns or {}) do
for returnName in rtn.name:gmatch '[%a_][%w_]*' do
text[#text+1] = ('---@return %s %s # %s'):format(
buildType(rtn),
returnName,
rtn.description
)
end
end
text[#text+1] = ('function %s%s(%s) end'):format(
node,
func.name,
table.concat(params, ', ')
)
return table.concat(text, '\n')
end
local function buildFile(class, defs)
local filePath = libraryPath / (class .. '.lua')
local text = {}
text[#text+1] = '---@meta'
text[#text+1] = ''
if defs.version then
text[#text+1] = ('-- version: %s'):format(defs.version)
end
text[#text+1] = buildDescription(defs.description)
text[#text+1] = ('---@class %s'):format(class)
text[#text+1] = ('%s = {}'):format(class)
for _, func in ipairs(defs.functions or {}) do
text[#text+1] = ''
text[#text+1] = buildFunction(func, class .. '.')
end
for _, tp in ipairs(defs.types or {}) do
local mark = {}
text[#text+1] = ''
text[#text+1] = buildDescription(tp.description)
text[#text+1] = ('---@class %s%s'):format(getTypeName(tp.name), buildSuper(tp))
text[#text+1] = ('local %s = {}'):format(tp.name)
for _, func in ipairs(tp.functions or {}) do
if not mark[func.name] then
mark[func.name] = true
text[#text+1] = ''
text[#text+1] = buildFunction(func, tp.name .. ':')
end
end
end
for _, cb in ipairs(defs.callbacks or {}) do
text[#text+1] = ''
text[#text+1] = buildDescription(cb.description)
text[#text+1] = ('---@alias %s %s'):format(getTypeName(cb.name), buildMultiDocFunc(cb))
end
for _, enum in ipairs(defs.enums or {}) do
text[#text+1] = ''
text[#text+1] = buildDescription(enum.description)
text[#text+1] = ('---@class %s'):format(getTypeName(enum.name))
for _, constant in ipairs(enum.constants) do
text[#text+1] = buildDescription(constant.description)
text[#text+1] = ('---@field %s integer'):format(formatIndex(constant.name))
end
end
if defs.version then
text[#text+1] = ''
text[#text+1] = ('return %s'):format(class)
end
text[#text+1] = ''
fsu.saveFile(filePath, table.concat(text, '\n'))
end
buildFile('love', api)
for _, module in ipairs(api.modules) do
buildFile('love.' .. module.name, module)
end
|
