diff options
Diffstat (limited to 'src/unexpected.rs')
| -rw-r--r-- | src/unexpected.rs | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/unexpected.rs b/src/unexpected.rs index 178d01e..26cf665 100644 --- a/src/unexpected.rs +++ b/src/unexpected.rs @@ -1,7 +1,9 @@ use core::fmt::{self, Debug, Display}; -#[cfg(not(feature = "std"))] +#[cfg(all(feature = "alloc", not(feature = "std")))] use alloc::boxed::Box; +#[cfg(all(feature = "alloc", not(feature = "std")))] +use alloc::string::String; #[cfg(feature = "std")] use std::error::Error; @@ -12,6 +14,7 @@ impl<T: Display + Debug + Send + Sync + ?Sized> Errorable for T {} #[derive(Debug)] enum ErrorTy { None, + #[cfg(feature = "alloc")] Message(Box<dyn Errorable + 'static>), #[cfg(feature = "std")] Error(Box<dyn Error + Send + Sync + 'static>), @@ -32,6 +35,7 @@ impl Display for RawUnexpected { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match &self.internal { ErrorTy::None => Display::fmt("Called `unexpect` on a `None` value", f), + #[cfg(feature = "alloc")] ErrorTy::Message(m) => Display::fmt(&m, f), #[cfg(feature = "std")] ErrorTy::Error(e) => Display::fmt(&e, f), @@ -79,6 +83,7 @@ impl RawUnexpected { /// /// let x = RawUnexpected::msg("failed"); /// ``` + #[cfg(feature = "alloc")] #[must_use] pub fn msg<E: Display + Debug + Send + Sync + 'static>(error: E) -> Self { Self { @@ -126,6 +131,7 @@ impl RawUnexpected { pub fn source(&self) -> Option<&(dyn Error + 'static)> { match &self.internal { ErrorTy::None => None, + #[cfg(feature = "alloc")] ErrorTy::Message(_) => None, #[cfg(feature = "std")] ErrorTy::Error(e) => Some(&**e), @@ -171,6 +177,7 @@ impl UnexpectedError { /// /// let x = UnexpectedError::msg("failed"); /// ``` + #[cfg(feature = "alloc")] #[must_use] pub fn msg<E: Display + Debug + Send + Sync + 'static>(error: E) -> Self { Self(RawUnexpected::msg(error)) @@ -200,12 +207,14 @@ impl From<RawUnexpected> for UnexpectedError { } } +#[cfg(feature = "alloc")] impl From<&'static str> for UnexpectedError { fn from(value: &'static str) -> Self { Self(RawUnexpected::msg(value)) } } +#[cfg(feature = "alloc")] impl From<String> for UnexpectedError { fn from(value: String) -> Self { Self(RawUnexpected::msg(value)) |