pub enum DiagnosticMessage {
Str(Cow<'static, str>),
Eager(Cow<'static, str>),
FluentIdentifier(Cow<'static, str>, Option<Cow<'static, str>>),
}
Expand description
Abstraction over a message in a diagnostic to support both translatable and non-translatable diagnostic messages.
Intended to be removed once diagnostics are entirely translatable.
Variants§
Str(Cow<'static, str>)
Non-translatable diagnostic message.
Eager(Cow<'static, str>)
Translatable message which has already been translated eagerly.
Some diagnostics have repeated subdiagnostics where the same interpolated variables would be instantiated multiple times with different values. As translation normally happens immediately prior to emission, after the diagnostic and subdiagnostic derive logic has run, the setting of diagnostic arguments in the derived code will overwrite previous variable values and only the final value will be set when translation occurs - resulting in incorrect diagnostics. Eager translation results in translation for a subdiagnostic happening immediately after the subdiagnostic derive’s logic has been run. This variant stores messages which have been translated eagerly.
FluentIdentifier(Cow<'static, str>, Option<Cow<'static, str>>)
Identifier for a Fluent message (with optional attribute) corresponding to the diagnostic message.
https://projectfluent.org/fluent/guide/hello.html https://projectfluent.org/fluent/guide/attributes.html
Implementations§
source§impl DiagnosticMessage
impl DiagnosticMessage
sourcepub fn with_subdiagnostic_message(&self, sub: SubdiagnosticMessage) -> Self
pub fn with_subdiagnostic_message(&self, sub: SubdiagnosticMessage) -> Self
Given a SubdiagnosticMessage
which may contain a Fluent attribute, create a new
DiagnosticMessage
that combines that attribute with the Fluent identifier of self
.
- If the
SubdiagnosticMessage
is non-translatable then return the message as aDiagnosticMessage
. - If
self
is non-translatable then returnself
’s message.
pub fn as_str(&self) -> Option<&str>
Trait Implementations§
source§impl Clone for DiagnosticMessage
impl Clone for DiagnosticMessage
source§fn clone(&self) -> DiagnosticMessage
fn clone(&self) -> DiagnosticMessage
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for DiagnosticMessage
impl Debug for DiagnosticMessage
source§impl<__D: Decoder> Decodable<__D> for DiagnosticMessage
impl<__D: Decoder> Decodable<__D> for DiagnosticMessage
source§impl<__E: Encoder> Encodable<__E> for DiagnosticMessage
impl<__E: Encoder> Encodable<__E> for DiagnosticMessage
source§impl From<&'static str> for DiagnosticMessage
impl From<&'static str> for DiagnosticMessage
source§impl From<String> for DiagnosticMessage
impl From<String> for DiagnosticMessage
source§impl Hash for DiagnosticMessage
impl Hash for DiagnosticMessage
source§impl Into<SubdiagnosticMessage> for DiagnosticMessage
impl Into<SubdiagnosticMessage> for DiagnosticMessage
Translating into a subdiagnostic message from a diagnostic message is a little strange - but
the subdiagnostic functions (e.g. span_label
) take a SubdiagnosticMessage
and the
subdiagnostic derive refers to typed identifiers that are DiagnosticMessage
s, so need to be
able to convert between these, as much as they’ll be converted back into DiagnosticMessage
using with_subdiagnostic_message
eventually. Don’t use this other than for the derive.
source§fn into(self) -> SubdiagnosticMessage
fn into(self) -> SubdiagnosticMessage
source§impl PartialEq<DiagnosticMessage> for DiagnosticMessage
impl PartialEq<DiagnosticMessage> for DiagnosticMessage
source§fn eq(&self, other: &DiagnosticMessage) -> bool
fn eq(&self, other: &DiagnosticMessage) -> bool
self
and other
values to be equal, and is used
by ==
.impl Eq for DiagnosticMessage
impl StructuralEq for DiagnosticMessage
impl StructuralPartialEq for DiagnosticMessage
Auto Trait Implementations§
impl RefUnwindSafe for DiagnosticMessage
impl Send for DiagnosticMessage
impl Sync for DiagnosticMessage
impl Unpin for DiagnosticMessage
impl UnwindSafe for DiagnosticMessage
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 56 bytes
Size for each variant:
Str
: 32 bytesEager
: 32 bytesFluentIdentifier
: 56 bytes