795 lines
23 KiB
Rust
795 lines
23 KiB
Rust
use std::borrow::Cow;
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use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
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use std::convert::TryInto;
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use std::ffi::{CStr, CString};
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use std::hash::{BuildHasher, Hash};
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use std::string::String as StdString;
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use bstr::{BStr, BString};
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use num_traits::cast;
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use crate::error::{Error, Result};
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use crate::function::{Function, WrappedFunction};
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use crate::lua::Lua;
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use crate::string::String;
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use crate::table::Table;
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use crate::thread::Thread;
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use crate::types::{LightUserData, MaybeSend};
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use crate::userdata::{AnyUserData, UserData, UserDataRef, UserDataRefMut};
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use crate::value::{FromLua, IntoLua, Nil, Value};
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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use crate::{function::OwnedFunction, table::OwnedTable, userdata::OwnedAnyUserData};
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#[cfg(feature = "async")]
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use crate::function::WrappedAsyncFunction;
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impl<'lua> IntoLua<'lua> for Value<'lua> {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self)
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}
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}
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impl<'lua> FromLua<'lua> for Value<'lua> {
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#[inline]
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fn from_lua(lua_value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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Ok(lua_value)
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}
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}
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impl<'lua> From<String<'lua>> for Value<'lua> {
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#[inline]
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fn from(value: String<'lua>) -> Self {
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Value::String(value)
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}
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}
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impl<'lua> IntoLua<'lua> for String<'lua> {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for String<'lua> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<String<'lua>> {
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match value {
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Value::String(s) => Ok(s),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "string",
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message: None,
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}),
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}
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}
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}
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impl<'lua> From<Table<'lua>> for Value<'lua> {
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#[inline]
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fn from(value: Table<'lua>) -> Self {
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Value::Table(value)
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}
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}
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impl<'lua> IntoLua<'lua> for Table<'lua> {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for Table<'lua> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Table<'lua>> {
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match value {
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Value::Table(table) => Ok(table),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "table",
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message: None,
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}),
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}
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}
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}
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
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impl<'lua> IntoLua<'lua> for OwnedTable {
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#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Table(Table(lua.adopt_owned_ref(self.0))))
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}
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}
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
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impl<'lua> FromLua<'lua> for OwnedTable {
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#[inline]
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<OwnedTable> {
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Table::from_lua(value, lua).map(|s| s.into_owned())
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}
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}
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impl<'lua> From<Function<'lua>> for Value<'lua> {
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#[inline]
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fn from(value: Function<'lua>) -> Self {
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Value::Function(value)
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}
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}
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impl<'lua> IntoLua<'lua> for Function<'lua> {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for Function<'lua> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Function<'lua>> {
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match value {
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Value::Function(table) => Ok(table),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "function",
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message: None,
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}),
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}
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}
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}
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
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impl<'lua> IntoLua<'lua> for OwnedFunction {
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#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Function(Function(lua.adopt_owned_ref(self.0))))
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}
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}
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
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impl<'lua> FromLua<'lua> for OwnedFunction {
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#[inline]
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<OwnedFunction> {
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Function::from_lua(value, lua).map(|s| s.into_owned())
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}
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}
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impl<'lua> IntoLua<'lua> for WrappedFunction<'lua> {
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#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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lua.create_callback(self.0).map(Value::Function)
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}
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}
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#[cfg(feature = "async")]
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impl<'lua> IntoLua<'lua> for WrappedAsyncFunction<'lua> {
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#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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lua.create_async_callback(self.0).map(Value::Function)
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}
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}
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impl<'lua> From<Thread<'lua>> for Value<'lua> {
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#[inline]
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fn from(value: Thread<'lua>) -> Self {
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Value::Thread(value)
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}
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}
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impl<'lua> IntoLua<'lua> for Thread<'lua> {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for Thread<'lua> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Thread<'lua>> {
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match value {
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Value::Thread(t) => Ok(t),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "thread",
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message: None,
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}),
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}
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}
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}
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impl<'lua> From<AnyUserData<'lua>> for Value<'lua> {
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#[inline]
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fn from(value: AnyUserData<'lua>) -> Self {
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Value::UserData(value)
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}
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}
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impl<'lua> IntoLua<'lua> for AnyUserData<'lua> {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for AnyUserData<'lua> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<AnyUserData<'lua>> {
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match value {
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Value::UserData(ud) => Ok(ud),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "userdata",
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message: None,
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}),
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}
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}
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}
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
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impl<'lua> IntoLua<'lua> for OwnedAnyUserData {
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#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::UserData(AnyUserData(lua.adopt_owned_ref(self.0))))
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}
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}
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#[cfg(all(feature = "unstable", any(not(feature = "send"), doc)))]
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#[cfg_attr(docsrs, doc(cfg(all(feature = "unstable", not(feature = "send")))))]
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impl<'lua> FromLua<'lua> for OwnedAnyUserData {
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#[inline]
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<OwnedAnyUserData> {
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AnyUserData::from_lua(value, lua).map(|s| s.into_owned())
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}
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}
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impl<'lua, T: 'static + MaybeSend + UserData> IntoLua<'lua> for T {
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#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::UserData(lua.create_userdata(self)?))
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}
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}
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impl<'lua, T: 'static> FromLua<'lua> for UserDataRef<'lua, T> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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Self::from_value(value)
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}
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}
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impl<'lua, T: 'static> FromLua<'lua> for UserDataRefMut<'lua, T> {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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Self::from_value(value)
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}
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}
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impl<'lua> From<Error> for Value<'lua> {
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#[inline]
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fn from(value: Error) -> Self {
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Value::Error(value)
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}
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}
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impl<'lua> IntoLua<'lua> for Error {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for Error {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Error> {
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match value {
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Value::Error(err) => Ok(err),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "error",
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message: None,
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}),
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}
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}
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}
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impl<'lua> From<bool> for Value<'lua> {
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#[inline]
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fn from(value: bool) -> Self {
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Value::Boolean(value)
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}
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}
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impl<'lua> IntoLua<'lua> for bool {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for bool {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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match value {
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Value::Nil => Ok(false),
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Value::Boolean(b) => Ok(b),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "boolean",
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message: None,
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}),
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}
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}
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}
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impl<'lua> From<LightUserData> for Value<'lua> {
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#[inline]
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fn from(value: LightUserData) -> Self {
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Value::LightUserData(value)
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}
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}
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impl<'lua> IntoLua<'lua> for LightUserData {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(self.into())
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}
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}
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impl<'lua> FromLua<'lua> for LightUserData {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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match value {
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Value::LightUserData(ud) => Ok(ud),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "light userdata",
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message: None,
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}),
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}
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}
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}
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#[cfg(feature = "luau")]
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impl<'lua> From<crate::types::Vector> for Value<'lua> {
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#[inline]
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fn from(value: crate::types::Vector) -> Self {
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Value::Vector(value)
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}
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}
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#[cfg(feature = "luau")]
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impl<'lua> IntoLua<'lua> for crate::types::Vector {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Vector(self))
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}
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}
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#[cfg(feature = "luau")]
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impl<'lua> FromLua<'lua> for crate::types::Vector {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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match value {
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Value::Vector(v) => Ok(v),
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_ => Err(Error::FromLuaConversionError {
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from: value.type_name(),
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to: "vector",
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message: None,
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}),
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}
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}
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}
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impl<'lua> IntoLua<'lua> for StdString {
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|
#[inline]
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fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::String(lua.create_string(&self)?))
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}
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}
|
|
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|
impl<'lua> FromLua<'lua> for StdString {
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|
#[inline]
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
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let s = String::from_lua(value, lua)?;
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Ok(s.to_str()?.to_owned())
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}
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}
|
|
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|
impl<'lua> IntoLua<'lua> for &str {
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|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(self)?))
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|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for Cow<'_, str> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(self.as_bytes())?))
|
|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for Box<str> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(&*self)?))
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|
}
|
|
}
|
|
|
|
impl<'lua> FromLua<'lua> for Box<str> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
|
|
StdString::from_lua(value, lua).map(|s| s.into_boxed_str())
|
|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for CString {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(self.as_bytes())?))
|
|
}
|
|
}
|
|
|
|
impl<'lua> FromLua<'lua> for CString {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
|
|
let s = String::from_lua(value, lua)?;
|
|
match CStr::from_bytes_with_nul(s.as_bytes_with_nul()) {
|
|
Ok(s) => Ok(s.to_owned()),
|
|
Err(e) => Err(Error::FromLuaConversionError {
|
|
from: "string",
|
|
to: "CString",
|
|
message: Some(e.to_string()),
|
|
}),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for &CStr {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(self.to_bytes())?))
|
|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for Cow<'_, CStr> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(self.to_bytes())?))
|
|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for BString {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(&self)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua> FromLua<'lua> for BString {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
|
|
let s = String::from_lua(value, lua)?;
|
|
Ok(BString::from(s.as_bytes().to_vec()))
|
|
}
|
|
}
|
|
|
|
impl<'lua> IntoLua<'lua> for &BStr {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::String(lua.create_string(self)?))
|
|
}
|
|
}
|
|
|
|
macro_rules! lua_convert_int_infallible {
|
|
($($x:ty),*) => {
|
|
$(impl<'lua> From<$x> for Value<'lua> {
|
|
#[inline]
|
|
fn from(value: $x) -> Self {
|
|
Self::Integer(value.into())
|
|
}
|
|
})*
|
|
}
|
|
}
|
|
|
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macro_rules! lua_convert_int {
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($($x:ty),*) => {
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$(impl<'lua> IntoLua<'lua> for $x {
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#[inline]
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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cast(self)
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.map(Value::Integer)
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.or_else(|| cast(self).map(Value::Number))
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// This is impossible error because conversion to Number never fails
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.ok_or_else(|| Error::ToLuaConversionError {
|
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from: stringify!($x),
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to: "number",
|
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message: Some("out of range".to_owned()),
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})
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}
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}
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impl<'lua> FromLua<'lua> for $x {
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#[inline]
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
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(match value {
|
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Value::Integer(i) => cast(i),
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Value::Number(n) => cast(n),
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_ => return Err(Error::FromLuaConversionError {
|
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from: value.type_name(),
|
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to: stringify!($x),
|
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message: None,
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}),
|
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})
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.ok_or_else(|| Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: stringify!($x),
|
|
message: Some("out of range".to_owned()),
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|
})
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}
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})*
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};
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}
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lua_convert_int!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, usize);
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lua_convert_int_infallible!(i8, u8, i16, u16, i32);
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macro_rules! lua_convert_float {
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($($x:ty),*) => {
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$(impl<'lua> IntoLua<'lua> for $x {
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#[inline]
|
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fn into_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
|
|
cast(self)
|
|
.ok_or_else(|| Error::ToLuaConversionError {
|
|
from: stringify!($x),
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to: "number",
|
|
message: Some("out of range".to_string()),
|
|
})
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.map(Value::Number)
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}
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}
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impl<'lua> FromLua<'lua> for $x {
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#[inline]
|
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fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
|
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(match value {
|
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Value::Integer(i) => cast(i),
|
|
Value::Number(n) => cast(n),
|
|
_ => return Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: stringify!($x),
|
|
message: None,
|
|
}),
|
|
})
|
|
.ok_or_else(|| Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: stringify!($x),
|
|
message: Some("out of range".to_owned()),
|
|
})
|
|
}
|
|
})*
|
|
};
|
|
}
|
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|
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lua_convert_float!(f32, f64);
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impl<'lua, T> IntoLua<'lua> for &[T]
|
|
where
|
|
T: Clone + IntoLua<'lua>,
|
|
{
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(
|
|
lua.create_sequence_from(self.iter().cloned())?,
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|
))
|
|
}
|
|
}
|
|
|
|
impl<'lua, T, const N: usize> IntoLua<'lua> for [T; N]
|
|
where
|
|
T: IntoLua<'lua>,
|
|
{
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_sequence_from(self)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, T, const N: usize> FromLua<'lua> for [T; N]
|
|
where
|
|
T: FromLua<'lua>,
|
|
{
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, _lua: &'lua Lua) -> Result<Self> {
|
|
match value {
|
|
#[cfg(feature = "luau")]
|
|
#[rustfmt::skip]
|
|
Value::Vector(v) if N == crate::types::Vector::SIZE => unsafe {
|
|
use std::{mem, ptr};
|
|
let mut arr: [mem::MaybeUninit<T>; N] = mem::MaybeUninit::uninit().assume_init();
|
|
ptr::write(arr[0].as_mut_ptr() , T::from_lua(Value::Number(v.x() as _), _lua)?);
|
|
ptr::write(arr[1].as_mut_ptr(), T::from_lua(Value::Number(v.y() as _), _lua)?);
|
|
ptr::write(arr[2].as_mut_ptr(), T::from_lua(Value::Number(v.z() as _), _lua)?);
|
|
#[cfg(feature = "luau-vector4")]
|
|
ptr::write(arr[3].as_mut_ptr(), T::from_lua(Value::Number(v.w() as _), _lua)?);
|
|
Ok(mem::transmute_copy(&arr))
|
|
},
|
|
Value::Table(table) => {
|
|
let vec = table.sequence_values().collect::<Result<Vec<_>>>()?;
|
|
vec.try_into()
|
|
.map_err(|vec: Vec<T>| Error::FromLuaConversionError {
|
|
from: "Table",
|
|
to: "Array",
|
|
message: Some(format!("expected table of length {}, got {}", N, vec.len())),
|
|
})
|
|
}
|
|
_ => Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: "Array",
|
|
message: Some("expected table".to_string()),
|
|
}),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: IntoLua<'lua>> IntoLua<'lua> for Box<[T]> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_sequence_from(self.into_vec())?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: FromLua<'lua>> FromLua<'lua> for Box<[T]> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
|
|
Ok(Vec::<T>::from_lua(value, lua)?.into_boxed_slice())
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: IntoLua<'lua>> IntoLua<'lua> for Vec<T> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_sequence_from(self)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: FromLua<'lua>> FromLua<'lua> for Vec<T> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, _lua: &'lua Lua) -> Result<Self> {
|
|
match value {
|
|
Value::Table(table) => table.sequence_values().collect(),
|
|
_ => Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: "Vec",
|
|
message: Some("expected table".to_string()),
|
|
}),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, K: Eq + Hash + IntoLua<'lua>, V: IntoLua<'lua>, S: BuildHasher> IntoLua<'lua>
|
|
for HashMap<K, V, S>
|
|
{
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_table_from(self)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, K: Eq + Hash + FromLua<'lua>, V: FromLua<'lua>, S: BuildHasher + Default> FromLua<'lua>
|
|
for HashMap<K, V, S>
|
|
{
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
|
|
if let Value::Table(table) = value {
|
|
table.pairs().collect()
|
|
} else {
|
|
Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: "HashMap",
|
|
message: Some("expected table".to_string()),
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, K: Ord + IntoLua<'lua>, V: IntoLua<'lua>> IntoLua<'lua> for BTreeMap<K, V> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_table_from(self)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, K: Ord + FromLua<'lua>, V: FromLua<'lua>> FromLua<'lua> for BTreeMap<K, V> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
|
|
if let Value::Table(table) = value {
|
|
table.pairs().collect()
|
|
} else {
|
|
Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: "BTreeMap",
|
|
message: Some("expected table".to_string()),
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: Eq + Hash + IntoLua<'lua>, S: BuildHasher> IntoLua<'lua> for HashSet<T, S> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_table_from(
|
|
self.into_iter().map(|val| (val, true)),
|
|
)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: Eq + Hash + FromLua<'lua>, S: BuildHasher + Default> FromLua<'lua> for HashSet<T, S> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
|
|
match value {
|
|
Value::Table(table) if table.raw_len() > 0 => table.sequence_values().collect(),
|
|
Value::Table(table) => table
|
|
.pairs::<T, Value<'lua>>()
|
|
.map(|res| res.map(|(k, _)| k))
|
|
.collect(),
|
|
_ => Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: "HashSet",
|
|
message: Some("expected table".to_string()),
|
|
}),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: Ord + IntoLua<'lua>> IntoLua<'lua> for BTreeSet<T> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
Ok(Value::Table(lua.create_table_from(
|
|
self.into_iter().map(|val| (val, true)),
|
|
)?))
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: Ord + FromLua<'lua>> FromLua<'lua> for BTreeSet<T> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, _: &'lua Lua) -> Result<Self> {
|
|
match value {
|
|
Value::Table(table) if table.raw_len() > 0 => table.sequence_values().collect(),
|
|
Value::Table(table) => table
|
|
.pairs::<T, Value<'lua>>()
|
|
.map(|res| res.map(|(k, _)| k))
|
|
.collect(),
|
|
_ => Err(Error::FromLuaConversionError {
|
|
from: value.type_name(),
|
|
to: "BTreeSet",
|
|
message: Some("expected table".to_string()),
|
|
}),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: IntoLua<'lua>> IntoLua<'lua> for Option<T> {
|
|
#[inline]
|
|
fn into_lua(self, lua: &'lua Lua) -> Result<Value<'lua>> {
|
|
match self {
|
|
Some(val) => val.into_lua(lua),
|
|
None => Ok(Nil),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'lua, T: FromLua<'lua>> FromLua<'lua> for Option<T> {
|
|
#[inline]
|
|
fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
|
|
match value {
|
|
Nil => Ok(None),
|
|
value => Ok(Some(T::from_lua(value, lua)?)),
|
|
}
|
|
}
|
|
}
|