-- Tencent is pleased to support the open source community by making xLua available.
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-- Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
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-- Licensed under the MIT License (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
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-- http://opensource.org/licenses/MIT
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-- Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
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local friendlyNameMap = {
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["System.Object"] = "object",
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["System.String"] = "string",
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["System.Boolean"] = "bool",
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["System.Byte"] = "byte",
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["System.Char"] = "char",
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["System.Decimal"] = "decimal",
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["System.Double"] = "double",
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["System.Int16"] = "short",
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["System.Int32"] = "int",
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["System.Int64"] = "long",
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["System.SByte"] = "sbyte",
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["System.Single"] = "float",
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["System.UInt16"] = "ushort",
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["System.UInt32"] = "uint",
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["System.UInt64"] = "ulong",
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["System.Void"] = "void",
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}
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local csKeywords = {
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"abstract", "as", "base", "bool",
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"break", "byte", "case", "catch",
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"char", "checked", "class", "const",
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"continue", "decimal", "default", "delegate",
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"do", "double", "else", "enum",
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"event", "explicit", "extern", "false",
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"finally", "fixed", "float", "for",
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"foreach", "goto", "if", "implicit",
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"in", "int", "interface",
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"internal", "is", "lock", "long",
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"namespace", "new", "null", "object",
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"operator", "out", "override",
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"params", "private", "protected", "public",
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"readonly", "ref", "return", "sbyte",
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"sealed", "short", "sizeof", "stackalloc",
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"static", "string", "struct", "switch",
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"this", "throw", "true", "try",
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"typeof", "uint", "ulong", "unchecked",
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"unsafe", "ushort", "using", "virtual",
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"void", "volatile", "while"
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}
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for _, kw in ipairs(csKeywords) do
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csKeywords[kw] = '@'..kw
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end
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for i = 1, #csKeywords do
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csKeywords[i] = nil
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end
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function UnK(symbol)
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return csKeywords[symbol] or symbol
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end
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local fixChecker = {
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--["System.String"] = "LuaAPI.lua_isstring",
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["System.Boolean"] = "LuaTypes.LUA_TBOOLEAN == LuaAPI.lua_type",
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["System.Byte"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.Char"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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--["System.Decimal"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.Double"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.Int16"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.Int32"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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--["System.Int64"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.SByte"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.Single"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.UInt16"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.UInt32"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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--["System.UInt64"] = "LuaTypes.LUA_TNUMBER == LuaAPI.lua_type",
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["System.IntPtr"] = "LuaTypes.LUA_TLIGHTUSERDATA == LuaAPI.lua_type",
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}
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local typedCaster = {
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["System.Byte"] = "LuaAPI.xlua_tointeger",
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["System.Char"] = "LuaAPI.xlua_tointeger",
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["System.Int16"] = "LuaAPI.xlua_tointeger",
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["System.SByte"] = "LuaAPI.xlua_tointeger",
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["System.Single"] = "LuaAPI.lua_tonumber",
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["System.UInt16"] = "LuaAPI.xlua_tointeger",
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}
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local fixCaster = {
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["System.Double"] = "LuaAPI.lua_tonumber",
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["System.String"] = "LuaAPI.lua_tostring",
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["System.Boolean"] = "LuaAPI.lua_toboolean",
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["System.Byte[]"] = "LuaAPI.lua_tobytes",
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["System.IntPtr"] = "LuaAPI.lua_touserdata",
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["System.UInt32"] = "LuaAPI.xlua_touint",
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["System.UInt64"] = "LuaAPI.lua_touint64",
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["System.Int32"] = "LuaAPI.xlua_tointeger",
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["System.Int64"] = "LuaAPI.lua_toint64",
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}
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local fixPush = {
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["System.Byte"] = "LuaAPI.xlua_pushinteger",
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["System.Char"] = "LuaAPI.xlua_pushinteger",
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["System.Int16"] = "LuaAPI.xlua_pushinteger",
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["System.Int32"] = "LuaAPI.xlua_pushinteger",
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["System.Int64"] = "LuaAPI.lua_pushint64",
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["System.SByte"] = "LuaAPI.xlua_pushinteger",
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["System.Single"] = "LuaAPI.lua_pushnumber",
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["System.UInt16"] = "LuaAPI.xlua_pushinteger",
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["System.UInt32"] = "LuaAPI.xlua_pushuint",
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["System.UInt64"] = "LuaAPI.lua_pushuint64",
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["System.Single"] = "LuaAPI.lua_pushnumber",
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["System.Double"] = "LuaAPI.lua_pushnumber",
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["System.String"] = "LuaAPI.lua_pushstring",
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["System.Byte[]"] = "LuaAPI.lua_pushstring",
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["System.Boolean"] = "LuaAPI.lua_pushboolean",
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["System.IntPtr"] = "LuaAPI.lua_pushlightuserdata",
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["System.Decimal"] = "translator.PushDecimal",
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["System.Object"] = "translator.PushAny",
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}
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local notranslator = {
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["System.Byte"] = true,
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["System.Char"] = true,
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["System.Int16"] = true,
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["System.Int32"] = true,
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["System.Int64"] = true,
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["System.SByte"] = true,
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["System.Single"] = true,
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["System.UInt16"] = true,
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["System.UInt32"] = true,
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["System.UInt64"] = true,
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["System.Double"] = true,
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["System.String"] = true,
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["System.Boolean"] = true,
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["System.Void"] = true,
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["System.IntPtr"] = true,
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["System.Byte[]"] = true,
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}
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function ForEachCsList(...)
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local list_count = select('#', ...) - 1
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local callback = select(list_count + 1, ...)
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for i = 1, list_count do
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local list = select(i, ...)
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for i = 0, (list.Count or list.Length) - 1 do
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callback(list[i], i)
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end
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end
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end
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function CalcCsList(list, predicate)
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local count = 0
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for i = 0, (list.Count or list.Length) - 1 do
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if predicate(list[i], i) then count = count + 1 end
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end
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return count
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end
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function IfAny(list, predicate)
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for i = 0, (list.Count or list.Length) - 1 do
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if predicate(list[i], i) then return true end
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end
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return false
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end
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local genPushAndUpdateTypes
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function SetGenPushAndUpdateTypes(list)
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genPushAndUpdateTypes = {}
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ForEachCsList(list, function(t)
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genPushAndUpdateTypes[t] = true
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end)
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end
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local xLuaClasses
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function SetXLuaClasses(list)
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xLuaClasses = {}
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ForEachCsList(list, function(t)
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xLuaClasses[t.Name] = true
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end)
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end
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local objType = typeof(CS.System.Object)
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local valueType = typeof(CS.System.ValueType)
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local function _CsFullTypeName(t)
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if t.IsArray then
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local element_name, element_is_array = _CsFullTypeName(t:GetElementType())
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if element_is_array then
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local bracket_pos = element_name:find('%[')
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return element_name:sub(1, bracket_pos - 1) .. '[' .. string.rep(',', t:GetArrayRank() - 1) .. ']' .. element_name:sub(bracket_pos, -1), true
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else
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return element_name .. '[' .. string.rep(',', t:GetArrayRank() - 1) .. ']', true
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end
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elseif t.IsByRef then
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return _CsFullTypeName(t:GetElementType())
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elseif t.IsGenericParameter then
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return (t.BaseType == objType or t.BaseType == valueType) and t.Name or _CsFullTypeName(t.BaseType) --TODO:应该判断是否类型约束
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end
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local name = t.FullName:gsub("&", ""):gsub("%+", ".")
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if not t.IsGenericType then
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return friendlyNameMap[name] or name
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end
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local genericParameter = ""
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ForEachCsList(t:GetGenericArguments(), function(at, ati)
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if ati ~= 0 then genericParameter = genericParameter .. ', ' end
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genericParameter = genericParameter .. _CsFullTypeName(at)
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end)
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return name:gsub("`%d+", '<' .. genericParameter .. '>'):gsub("%[[^,%]].*", ""), false
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end
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function CsFullTypeName(t)
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local name = _CsFullTypeName(t)
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return xLuaClasses[name] and ("global::" .. name) or name
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end
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function CSVariableName(t)
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if t.IsArray then
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return CSVariableName(t:GetElementType()) .. '_'.. t:GetArrayRank() ..'_'
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end
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return t:ToString():gsub("&", ""):gsub("%+", ""):gsub("`", "_"):gsub("%.", ""):gsub("%[", "_"):gsub("%]", "_"):gsub(",", "")
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end
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local function getSafeFullName(t)
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if t == nil then
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return ""
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end
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if t.IsGenericParameter then
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return t.BaseType == objType and t.Name or getSafeFullName(t.BaseType)
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end
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if not t.FullName then return "" end
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return t.FullName:gsub("&", "")
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end
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function GetCheckStatement(t, idx, is_v_params)
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local cond_start = is_v_params and "(LuaTypes.LUA_TNONE == LuaAPI.lua_type(L, ".. idx ..") || " or ""
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local cond_end = is_v_params and ")" or ""
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local testname = getSafeFullName(t)
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if testname == "System.String" or testname == "System.Byte[]" then
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return cond_start .. "(LuaAPI.lua_isnil(L, " .. idx .. ") || LuaAPI.lua_type(L, ".. idx ..") == LuaTypes.LUA_TSTRING)" .. cond_end
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elseif testname == "System.Int64" then
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return cond_start .. "(LuaTypes.LUA_TNUMBER == LuaAPI.lua_type(L, ".. idx ..") || LuaAPI.lua_isint64(L, ".. idx .."))" .. cond_end
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elseif testname == "System.UInt64" then
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return cond_start .. "(LuaTypes.LUA_TNUMBER == LuaAPI.lua_type(L, ".. idx ..") || LuaAPI.lua_isuint64(L, ".. idx .."))" .. cond_end
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elseif testname == "System.Decimal" then
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return cond_start .. "(LuaTypes.LUA_TNUMBER == LuaAPI.lua_type(L, ".. idx ..") || translator.IsDecimal(L, ".. idx .."))" .. cond_end
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elseif testname == "XLua.LuaTable" then
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return cond_start .. "(LuaAPI.lua_isnil(L, " .. idx .. ") || LuaAPI.lua_type(L, ".. idx ..") == LuaTypes.LUA_TTABLE)" .. cond_end
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elseif testname == "XLua.LuaFunction" then
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return cond_start .. "(LuaAPI.lua_isnil(L, " .. idx .. ") || LuaAPI.lua_type(L, ".. idx ..") == LuaTypes.LUA_TFUNCTION)" .. cond_end
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end
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return cond_start .. (fixChecker[testname] or ("translator.Assignable<" .. CsFullTypeName(t).. ">")) .. "(L, ".. idx ..")" .. cond_end
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end
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local delegateType = typeof(CS.System.Delegate)
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local ExtensionAttribute = typeof(CS.System.Runtime.CompilerServices.ExtensionAttribute)
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function MethodParameters(method)
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if not method:IsDefined(ExtensionAttribute, false) then
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return method:GetParameters()
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else
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local parameters = method:GetParameters()
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if parameters[0].ParameterType.IsInterface then
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return parameters
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end
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local ret = {}
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for i = 1, parameters.Length - 1 do
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ret[i - 1] = parameters[i]
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end
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ret.Length = parameters.Length - 1
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return ret
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end
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end
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function IsStruct(t)
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if t.IsByRef then t = t:GetElementType() end
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return t.IsValueType and not t.IsPrimitive
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end
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function NeedUpdate(t)
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if t.IsByRef then t = t:GetElementType() end
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return t.IsValueType and not t.IsPrimitive and not t.IsEnum and t ~= typeof(CS.System.Decimal)
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end
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function GetCasterStatement(t, idx, var_name, need_declare, is_v_params)
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local testname = getSafeFullName(t)
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local statement = ""
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local is_struct = IsStruct(t)
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if need_declare then
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statement = CsFullTypeName(t) .. " " .. var_name
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if is_struct and not typedCaster[testname] and not fixCaster[testname] then
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statement = statement .. ";"
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else
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statement = statement .. " = "
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end
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elseif not is_struct then
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statement = var_name .. " = "
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end
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if is_v_params then
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return statement .. "translator.GetParams<" .. CsFullTypeName(t:GetElementType()).. ">" .. "(L, ".. idx ..")"
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elseif typedCaster[testname] then
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return statement .. "(" .. CsFullTypeName(t) .. ")" ..typedCaster[testname] .. "(L, ".. idx ..")"
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elseif delegateType:IsAssignableFrom(t) then
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return statement .. "translator.GetDelegate<" .. CsFullTypeName(t).. ">" .. "(L, ".. idx ..")"
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elseif fixCaster[testname] then
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return statement .. fixCaster[testname] .. "(L, ".. idx ..")"
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elseif testname == "System.Object" then
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return statement .. "translator.GetObject(L, ".. idx ..", typeof(" .. CsFullTypeName(t) .."))"
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elseif is_struct then
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return statement .. "translator.Get(L, ".. idx ..", out " .. var_name .. ")"
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elseif t.IsGenericParameter and not t.DeclaringMethod then
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return statement .. "translator.GetByType<"..t.Name..">(L, ".. idx ..")"
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else
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return statement .. "("..CsFullTypeName(t)..")translator.GetObject(L, ".. idx ..", typeof(" .. CsFullTypeName(t) .."))"
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end
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end
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local paramsAttriType = typeof(CS.System.ParamArrayAttribute)
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function IsParams(pi)
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if (not pi.IsDefined) then
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return pi.IsParamArray
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end
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return pi:IsDefined(paramsAttriType, false)
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end
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local obsoluteAttriType = typeof(CS.System.ObsoleteAttribute)
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function IsObsolute(f)
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return f:IsDefined(obsoluteAttriType, false)
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end
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local objectType = typeof(CS.System.Object)
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function GetSelfStatement(t)
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local fulltypename = CsFullTypeName(t)
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local is_struct = IsStruct(t)
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if is_struct then
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return fulltypename .. " gen_to_be_invoked;translator.Get(L, 1, out gen_to_be_invoked)"
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else
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if t == objectType then
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return "object gen_to_be_invoked = translator.FastGetCSObj(L, 1)"
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else
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return fulltypename .. " gen_to_be_invoked = (" .. fulltypename .. ")translator.FastGetCSObj(L, 1)"
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end
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end
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end
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local GetNullableUnderlyingType = CS.System.Nullable.GetUnderlyingType
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function GetPushStatement(t, variable, is_v_params)
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if is_v_params then
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local item_push = GetPushStatement(t:GetElementType(), variable..'[__gen_i]')
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return 'if ('.. variable ..' != null) { for (int __gen_i = 0; __gen_i < ' .. variable .. '.Length; ++__gen_i) ' .. item_push .. '; }'
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end
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if t.IsByRef then t = t:GetElementType() end
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local testname = getSafeFullName(t)
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if fixPush[testname] then
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return fixPush[testname] .. "(L, ".. variable ..")"
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elseif genPushAndUpdateTypes[t] then
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return "translator.Push".. CSVariableName(t) .."(L, "..variable..")"
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elseif t.IsGenericParameter and not t.DeclaringMethod then
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return "translator.PushByType(L, "..variable..")"
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elseif t.IsInterface or GetNullableUnderlyingType(t) then
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return "translator.PushAny(L, "..variable..")"
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else
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return "translator.Push(L, "..variable..")"
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end
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end
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function GetUpdateStatement(t, idx, variable)
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if t.IsByRef then t = t:GetElementType() end
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if typeof(CS.System.Decimal) == t then error('Decimal not update!') end
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if genPushAndUpdateTypes[t] then
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return "translator.Update".. CSVariableName(t) .."(L, ".. idx ..", "..variable..")"
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else
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return "translator.Update(L, ".. idx ..", "..variable..")"
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end
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end
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function JustLuaType(t)
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return notranslator[getSafeFullName(t)]
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end
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function CallNeedTranslator(overload, isdelegate)
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if not overload.IsStatic and not isdelegate then return true end
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local ret_type_name = getSafeFullName(overload.ReturnType)
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if not notranslator[ret_type_name] then return true end
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local parameters = overload:GetParameters()
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return IfAny(overload:GetParameters(), function(parameter)
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return IsParams(parameter) or (not notranslator[getSafeFullName(parameter.ParameterType)])
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end)
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end
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function MethodCallNeedTranslator(method)
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return IfAny(method.Overloads, function(overload) return CallNeedTranslator(overload) end)
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end
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function AccessorNeedTranslator(accessor)
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return not accessor.IsStatic or not JustLuaType(accessor.Type)
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end
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local GenericParameterAttributes = CS.System.Reflection.GenericParameterAttributes
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local enum_and_op = debug.getmetatable(CS.System.Reflection.BindingFlags.Public).__band
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local has_generic_flag = function(f1, f2)
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return (f1 ~= GenericParameterAttributes.None) and (enum_and_op(f1, f2) == f2)
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end
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function GenericArgumentList(type)
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local generic_arg_list = ""
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local type_constraints = ""
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if type.IsGenericTypeDefinition then
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generic_arg_list = "<"
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local constraints = {}
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ForEachCsList(type:GetGenericArguments(), function(generic_arg, gai)
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local constraint = {}
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if gai ~= 0 then generic_arg_list = generic_arg_list .. ", " end
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generic_arg_list = generic_arg_list .. generic_arg.Name
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if has_generic_flag(generic_arg.GenericParameterAttributes, GenericParameterAttributes.ReferenceTypeConstraint) then
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table.insert(constraint, 'class')
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end
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if has_generic_flag(generic_arg.GenericParameterAttributes, GenericParameterAttributes.NotNullableValueTypeConstraint) then
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table.insert(constraint, 'struct')
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end
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ForEachCsList(generic_arg:GetGenericParameterConstraints(), function(gpc)
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if gpc ~= typeof(CS.System.ValueType) or not has_generic_flag(generic_arg.GenericParameterAttributes, GenericParameterAttributes.NotNullableValueTypeConstraint) then
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table.insert(constraint, CsFullTypeName(gpc))
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end
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end)
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if not has_generic_flag(generic_arg.GenericParameterAttributes, GenericParameterAttributes.NotNullableValueTypeConstraint) and has_generic_flag(generic_arg.GenericParameterAttributes, GenericParameterAttributes.DefaultConstructorConstraint) then
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table.insert(constraint, 'new()')
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end
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if #constraint > 0 then
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table.insert(constraints, 'where ' .. generic_arg.Name .. ' : ' .. table.concat(constraint, ','))
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end
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end)
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generic_arg_list = generic_arg_list .. ">"
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if #constraints > 0 then
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type_constraints = table.concat(constraints, ',')
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end
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end
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return generic_arg_list, type_constraints
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end
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function LocalName(name)
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return "_" .. name
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end
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