2017-06-20 19:04:25 -04:00
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use std::collections::{HashMap, BTreeMap};
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2017-05-21 19:50:59 -04:00
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use std::hash::Hash;
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2017-07-20 05:33:15 -04:00
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use std::string::String as StdString;
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2017-05-21 19:50:59 -04:00
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use error::*;
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use lua::*;
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for Value<'lua> {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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2017-05-21 19:50:59 -04:00
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Ok(self)
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for Value<'lua> {
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fn from_lua(lua_value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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2017-05-21 19:50:59 -04:00
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Ok(lua_value)
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}
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}
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2017-07-20 05:33:15 -04:00
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impl<'lua> ToLua<'lua> for String<'lua> {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::String(self))
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2017-05-21 19:50:59 -04:00
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}
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}
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2017-07-20 05:33:15 -04:00
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impl<'lua> FromLua<'lua> for String<'lua> {
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<String<'lua>> {
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2017-05-21 19:50:59 -04:00
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lua.coerce_string(value)
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for Table<'lua> {
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fn to_lua(self, _: &'lua Lua) -> Result<Value> {
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Ok(Value::Table(self))
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2017-05-21 19:50:59 -04:00
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for Table<'lua> {
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Table<'lua>> {
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2017-05-21 19:50:59 -04:00
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match value {
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2017-07-18 16:21:12 -04:00
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Value::Table(table) => Ok(table),
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_ => Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to table".to_owned(),
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)),
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2017-05-21 19:50:59 -04:00
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}
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for Function<'lua> {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Function(self))
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2017-05-21 19:50:59 -04:00
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for Function<'lua> {
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Function<'lua>> {
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2017-05-21 19:50:59 -04:00
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match value {
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2017-07-18 16:21:12 -04:00
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Value::Function(table) => Ok(table),
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_ => Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to function".to_owned(),
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)),
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2017-05-21 19:50:59 -04:00
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}
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for Thread<'lua> {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Thread(self))
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2017-05-21 19:50:59 -04:00
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for Thread<'lua> {
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Thread<'lua>> {
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2017-05-21 19:50:59 -04:00
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match value {
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2017-07-18 16:21:12 -04:00
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Value::Thread(t) => Ok(t),
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_ => Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to thread".to_owned(),
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)),
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2017-05-21 19:50:59 -04:00
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}
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for AnyUserData<'lua> {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::UserData(self))
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2017-05-24 23:13:58 -04:00
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for AnyUserData<'lua> {
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<AnyUserData<'lua>> {
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2017-05-24 23:13:58 -04:00
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match value {
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2017-07-18 16:21:12 -04:00
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Value::UserData(ud) => Ok(ud),
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_ => Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to userdata".to_owned(),
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)),
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2017-05-24 23:13:58 -04:00
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}
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua, T: UserData> ToLua<'lua> for T {
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fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::UserData(lua.create_userdata(self)))
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2017-05-21 19:50:59 -04:00
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}
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}
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2017-07-29 09:53:37 -04:00
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impl<'lua, T: UserData + Clone> FromLua<'lua> for T {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<T> {
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2017-05-21 19:50:59 -04:00
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match value {
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2017-07-29 09:53:37 -04:00
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Value::UserData(ud) => Ok(ud.borrow::<T>()?.clone()),
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2017-07-18 16:21:12 -04:00
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_ => Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to userdata".to_owned(),
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)),
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2017-05-21 19:50:59 -04:00
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}
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for Error {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Error(self))
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2017-06-25 01:47:55 -04:00
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for Error {
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Error> {
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2017-06-25 01:47:55 -04:00
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match value {
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2017-07-18 16:21:12 -04:00
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Value::Error(err) => Ok(err),
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val => Ok(Error::RuntimeError(
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2017-06-25 02:04:14 -04:00
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lua.coerce_string(val)
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.and_then(|s| Ok(s.to_str()?.to_owned()))
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.unwrap_or_else(|_| "<unprintable error>".to_owned()),
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)),
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2017-06-25 01:47:55 -04:00
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}
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}
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}
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2017-05-21 19:50:59 -04:00
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impl<'lua> ToLua<'lua> for bool {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Boolean(self))
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua> FromLua<'lua> for bool {
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2017-07-18 16:21:12 -04:00
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fn from_lua(v: Value, _: &'lua Lua) -> Result<Self> {
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2017-05-21 19:50:59 -04:00
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match v {
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2017-07-18 16:21:12 -04:00
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Value::Nil => Ok(false),
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Value::Boolean(b) => Ok(b),
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2017-05-21 19:50:59 -04:00
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_ => Ok(true),
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}
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> ToLua<'lua> for LightUserData {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::LightUserData(self))
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2017-05-25 00:43:35 -04:00
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}
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}
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2017-07-18 16:21:12 -04:00
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impl<'lua> FromLua<'lua> for LightUserData {
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fn from_lua(v: Value, _: &'lua Lua) -> Result<Self> {
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2017-05-25 00:43:35 -04:00
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match v {
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2017-07-18 16:21:12 -04:00
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Value::LightUserData(ud) => Ok(ud),
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_ => Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to lightuserdata".to_owned(),
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)),
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2017-05-25 00:43:35 -04:00
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}
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}
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}
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2017-07-20 05:33:15 -04:00
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impl<'lua> ToLua<'lua> for StdString {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::String(lua.create_string(&self)))
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2017-05-21 19:50:59 -04:00
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}
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}
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2017-07-20 05:33:15 -04:00
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impl<'lua> FromLua<'lua> for StdString {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
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2017-06-18 08:48:45 -04:00
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Ok(lua.coerce_string(value)?.to_str()?.to_owned())
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua, 'a> ToLua<'lua> for &'a str {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::String(lua.create_string(self)))
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2017-05-21 19:50:59 -04:00
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}
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}
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macro_rules! lua_convert_int {
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($x: ty) => {
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impl<'lua> ToLua<'lua> for $x {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Integer(self as Integer))
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua> FromLua<'lua> for $x {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
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2017-05-21 19:50:59 -04:00
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Ok(lua.coerce_integer(value)? as $x)
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}
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}
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}
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}
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lua_convert_int!(i8);
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lua_convert_int!(u8);
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lua_convert_int!(i16);
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lua_convert_int!(u16);
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lua_convert_int!(i32);
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lua_convert_int!(u32);
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lua_convert_int!(i64);
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lua_convert_int!(u64);
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lua_convert_int!(isize);
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lua_convert_int!(usize);
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macro_rules! lua_convert_float {
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($x: ty) => {
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impl<'lua> ToLua<'lua> for $x {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Number(self as Number))
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua> FromLua<'lua> for $x {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
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2017-05-21 19:50:59 -04:00
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Ok(lua.coerce_number(value)? as $x)
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}
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}
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}
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}
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lua_convert_float!(f32);
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lua_convert_float!(f64);
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impl<'lua, T: ToLua<'lua>> ToLua<'lua> for Vec<T> {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Table(lua.create_sequence_from(self)?))
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua, T: FromLua<'lua>> FromLua<'lua> for Vec<T> {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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if let Value::Table(table) = value {
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2017-06-20 19:04:25 -04:00
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table.sequence_values().collect()
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2017-05-21 19:50:59 -04:00
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} else {
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2017-07-18 16:21:12 -04:00
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Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to table for Vec".to_owned(),
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))
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2017-05-21 19:50:59 -04:00
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}
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}
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}
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impl<'lua, K: Eq + Hash + ToLua<'lua>, V: ToLua<'lua>> ToLua<'lua> for HashMap<K, V> {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Table(lua.create_table_from(self)?))
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua, K: Eq + Hash + FromLua<'lua>, V: FromLua<'lua>> FromLua<'lua> for HashMap<K, V> {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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if let Value::Table(table) = value {
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2017-06-19 02:57:03 -04:00
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table.pairs().collect()
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2017-05-21 19:50:59 -04:00
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} else {
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2017-07-18 16:21:12 -04:00
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Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to table for HashMap".to_owned(),
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))
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2017-05-21 19:50:59 -04:00
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}
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}
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}
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impl<'lua, K: Ord + ToLua<'lua>, V: ToLua<'lua>> ToLua<'lua> for BTreeMap<K, V> {
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2017-07-18 16:21:12 -04:00
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fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Table(lua.create_table_from(self)?))
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2017-05-21 19:50:59 -04:00
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}
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}
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impl<'lua, K: Ord + FromLua<'lua>, V: FromLua<'lua>> FromLua<'lua> for BTreeMap<K, V> {
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2017-07-18 16:21:12 -04:00
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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if let Value::Table(table) = value {
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2017-06-19 02:57:03 -04:00
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table.pairs().collect()
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2017-05-21 19:50:59 -04:00
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} else {
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2017-07-18 16:21:12 -04:00
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Err(Error::FromLuaConversionError(
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2017-06-25 04:25:48 -04:00
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"cannot convert lua value to table for BTreeMap".to_owned(),
|
|
|
|
))
|
2017-05-21 19:50:59 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<'lua, T: ToLua<'lua>> ToLua<'lua> for Option<T> {
|
2017-07-18 16:21:12 -04:00
|
|
|
fn to_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
2017-05-21 19:50:59 -04:00
|
|
|
match self {
|
|
|
|
Some(val) => val.to_lua(lua),
|
2017-07-24 07:12:52 -04:00
|
|
|
None => Ok(Nil),
|
2017-05-21 19:50:59 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<'lua, T: FromLua<'lua>> FromLua<'lua> for Option<T> {
|
2017-07-18 16:21:12 -04:00
|
|
|
fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
|
2017-05-21 19:50:59 -04:00
|
|
|
match value {
|
2017-07-24 07:12:52 -04:00
|
|
|
Nil => Ok(None),
|
2017-05-21 19:50:59 -04:00
|
|
|
value => Ok(Some(T::from_lua(value, lua)?)),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|