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Rollup merge of #121085 - davidtwco:always-eager-diagnostics, r=nnethercote

errors: only eagerly translate subdiagnostics

Subdiagnostics don't need to be lazily translated, they can always be eagerly translated. Eager translation is slightly more complex as we need to have a `DiagCtxt` available to perform the translation, which involves slightly more threading of that context.

This slight increase in complexity should enable later simplifications - like passing `DiagCtxt` into `AddToDiagnostic` and moving Fluent messages into the diagnostic structs rather than having them in separate files (working on that was what led to this change).

r? ```@nnethercote```
This commit is contained in:
Matthias Krüger 2024-02-17 18:47:40 +01:00 committed by GitHub
commit 45d5773704
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43 changed files with 532 additions and 388 deletions

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@ -851,18 +851,11 @@ impl Diagnostic {
self
}
/// Add a subdiagnostic from a type that implements `Subdiagnostic` (see
/// [rustc_macros::Subdiagnostic]).
pub fn subdiagnostic(&mut self, subdiagnostic: impl AddToDiagnostic) -> &mut Self {
subdiagnostic.add_to_diagnostic(self);
self
}
/// Add a subdiagnostic from a type that implements `Subdiagnostic` (see
/// [rustc_macros::Subdiagnostic]). Performs eager translation of any translatable messages
/// used in the subdiagnostic, so suitable for use with repeated messages (i.e. re-use of
/// interpolated variables).
pub fn eager_subdiagnostic(
pub fn subdiagnostic(
&mut self,
dcx: &crate::DiagCtxt,
subdiagnostic: impl AddToDiagnostic,
@ -918,7 +911,7 @@ impl Diagnostic {
/// Helper function that takes a `SubdiagnosticMessage` and returns a `DiagnosticMessage` by
/// combining it with the primary message of the diagnostic (if translatable, otherwise it just
/// passes the user's string along).
fn subdiagnostic_message_to_diagnostic_message(
pub(crate) fn subdiagnostic_message_to_diagnostic_message(
&self,
attr: impl Into<SubdiagnosticMessage>,
) -> DiagnosticMessage {