Module rustc_errors::diagnostic_builder
source · Modules
Private module for sealing the
IsError helper trait.Macros
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In general, the
DiagnosticBuilder uses deref to allow access to
the fields and methods of the embedded diagnostic in a
transparent way. However, many of the methods are intended to
be used in a chained way, and hence ought to return self. In
that case, we can’t just naively forward to the method on the
diagnostic, because the return type would be a &Diagnostic
instead of a &DiagnosticBuilder<'a>. This forward! macro makes
it easy to declare such methods on the builder.Structs
Used for emitting structured error messages and other diagnostic information.
This type exists only for
DiagnosticBuilder::forget_guarantee, because it:Marker type which enables implementation of
create_note and emit_note functions for
note-without-error struct diagnostics.Enums
Traits
Trait for types that
DiagnosticBuilder::emit can return as a “guarantee”
(or “proof”) token that the emission happened.Trait implemented by error types. This should not be implemented manually. Instead, use
#[derive(Diagnostic)] – see rustc_macros::Diagnostic.