ExpandError in proc_macro - Rust (original) (raw)
#[non_exhaustive]
pub struct ExpandError;
🔬This is a nightly-only experimental API. (proc_macro_expand
#90765)
Expand description
Error returned from TokenStream::expand_expr
.
Returns the lower-level source of this error, if any. Read more
👎Deprecated since 1.42.0: use the Display impl or to_string()
👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
🔬This is a nightly-only experimental API. (error_generic_member_access
#99301)
Provides type-based access to context intended for error reports. Read more