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Make get_aux safe by storing the TypeId

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This commit is contained in:
Thom Chiovoloni
2019-01-25 00:43:50 -08:00
parent 6d1c915c2b
commit b6539a0fbf
2 changed files with 51 additions and 15 deletions
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14
src/error.rs
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@@ -94,6 +94,11 @@ pub enum Error {
#[cfg(feature = "functions")]
UnwindingPanic,
/// An error returned when `Context::get_aux` attempts to retrieve data
/// of a different type than what had been stored using `Context::set_aux`.
#[cfg(feature = "functions")]
GetAuxWrongType,
}
impl PartialEq for Error {
@@ -131,6 +136,8 @@ impl PartialEq for Error {
(Error::ModuleError(s1), Error::ModuleError(s2)) => s1 == s2,
#[cfg(feature = "functions")]
(Error::UnwindingPanic, Error::UnwindingPanic) => true,
#[cfg(feature = "functions")]
(Error::GetAuxWrongType, Error::GetAuxWrongType) => true,
(_, _) => false,
}
}
@@ -196,6 +203,8 @@ impl fmt::Display for Error {
Error::ModuleError(ref desc) => write!(f, "{}", desc),
#[cfg(feature = "functions")]
Error::UnwindingPanic => write!(f, "unwinding panic"),
#[cfg(feature = "functions")]
Error::GetAuxWrongType => write!(f, "get_aux called with wrong type"),
}
}
}
@@ -235,6 +244,8 @@ impl error::Error for Error {
Error::ModuleError(ref desc) => desc,
#[cfg(feature = "functions")]
Error::UnwindingPanic => "unwinding panic",
#[cfg(feature = "functions")]
Error::GetAuxWrongType => "get_aux called with wrong type",
}
}
@@ -272,6 +283,9 @@ impl error::Error for Error {
#[cfg(feature = "functions")]
Error::UnwindingPanic => None,
#[cfg(feature = "functions")]
Error::GetAuxWrongType => None,
}
}
}