Return rlua::Error on out of range numeric conversions using num_traits::cast
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@ -34,6 +34,7 @@ system-lua = ["pkg-config"]
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[dependencies]
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libc = { version = "0.2" }
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failure = { version = "0.1.2" }
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num-traits = { version = "0.2" }
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compiletest_rs = { version = "0.3", optional = true }
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[build-dependencies]
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@ -2,13 +2,15 @@ use std::collections::{BTreeMap, HashMap};
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use std::hash::{BuildHasher, Hash};
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use std::string::String as StdString;
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use num_traits::cast;
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use error::{Error, Result};
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use function::Function;
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use lua::Lua;
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use string::String;
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use table::Table;
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use thread::Thread;
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use types::{Integer, LightUserData, Number};
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use types::{LightUserData, Number};
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use userdata::{AnyUserData, UserData};
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use value::{FromLua, Nil, ToLua, Value};
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@ -207,13 +209,22 @@ macro_rules! lua_convert_int {
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($x:ty) => {
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impl<'lua> ToLua<'lua> for $x {
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fn to_lua(self, _: &'lua Lua) -> Result<Value<'lua>> {
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Ok(Value::Integer(self as Integer))
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cast(self)
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.ok_or_else(|| Error::ToLuaConversionError {
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from: stringify!($x),
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to: "integer",
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message: Some("integer out of range".to_owned()),
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}).map(Value::Integer)
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}
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}
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impl<'lua> FromLua<'lua> for $x {
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fn from_lua(value: Value<'lua>, lua: &'lua Lua) -> Result<Self> {
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Ok(lua.coerce_integer(value)? as $x)
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cast(lua.coerce_integer(value)?).ok_or_else(|| Error::FromLuaConversionError {
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from: "integer",
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to: stringify!($x),
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message: Some("integer 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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@ -227,6 +238,8 @@ 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!(i128);
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lua_convert_int!(u128);
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lua_convert_int!(isize);
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lua_convert_int!(usize);
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@ -42,6 +42,7 @@
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extern crate failure;
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extern crate libc;
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extern crate num_traits;
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mod error;
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mod ffi;
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@ -373,6 +373,10 @@ fn test_num_conversion() {
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lua.exec::<()>("a = math.huge", None).unwrap();
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assert!(globals.get::<_, i64>("n").is_err());
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assert!(lua.eval::<u64>("-1", None).is_err());
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assert!(lua.eval::<i64>("-1", None).is_ok());
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assert!(lua.pack(1u128 << 64).is_err());
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}
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#[test]
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