bjoernager/rust
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Add level arg to into_diagnostic.

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And make all hand-written `IntoDiagnostic` impls generic, by using
`DiagnosticBuilder::new(dcx, level, ...)` instead of e.g.
`dcx.struct_err(...)`.

This means the `create_*` functions are the source of the error level.
This change will let us remove `struct_diagnostic`.

Note: `#[rustc_lint_diagnostics]` is added to `DiagnosticBuilder::new`,
it's necessary to pass diagnostics tests now that it's used in
`into_diagnostic` functions.
This commit is contained in:
Nicholas Nethercote 2023-12-18 14:12:39 +11:00
parent 31df50c897
commit e7724a2e31
24 changed files with 307 additions and 288 deletions
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28
compiler/rustc_errors/src/diagnostic_builder.rs
View file

@ -21,7 +21,7 @@ use std::thread::panicking;
pub trait IntoDiagnostic<'a, G: EmissionGuarantee = ErrorGuaranteed> {
/// Write out as a diagnostic out of `DiagCtxt`.
#[must_use]
fn into_diagnostic(self, dcx: &'a DiagCtxt) -> DiagnosticBuilder<'a, G>;
fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G>;
}
impl<'a, T, G> IntoDiagnostic<'a, G> for Spanned<T>
@ -29,8 +29,8 @@ where
T: IntoDiagnostic<'a, G>,
G: EmissionGuarantee,
{
fn into_diagnostic(self, dcx: &'a DiagCtxt) -> DiagnosticBuilder<'a, G> {
let mut diag = self.node.into_diagnostic(dcx);
fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> {
let mut diag = self.node.into_diagnostic(dcx, level);
diag.set_span(self.span);
diag
}
@ -339,16 +339,10 @@ impl<G: EmissionGuarantee> DerefMut for DiagnosticBuilder<'_, G> {
}
impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
/// Convenience function for internal use, clients should use one of the
/// `struct_*` methods on [`DiagCtxt`].
#[rustc_lint_diagnostics]
#[track_caller]
pub(crate) fn new<M: Into<DiagnosticMessage>>(
dcx: &'a DiagCtxt,
level: Level,
message: M,
) -> Self {
let diagnostic = Diagnostic::new(level, message);
Self::new_diagnostic(dcx, diagnostic)
pub fn new<M: Into<DiagnosticMessage>>(dcx: &'a DiagCtxt, level: Level, message: M) -> Self {
Self::new_diagnostic(dcx, Diagnostic::new(level, message))
}
/// Creates a new `DiagnosticBuilder` with an already constructed
@ -400,15 +394,15 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
/// later stage of the compiler. The diagnostic can be accessed with
/// the provided `span` and `key` through [`DiagCtxt::steal_diagnostic()`].
///
/// As with `buffer`, this is unless the handler has disabled such buffering.
/// As with `buffer`, this is unless the dcx has disabled such buffering.
pub fn stash(self, span: Span, key: StashKey) {
if let Some((diag, handler)) = self.into_diagnostic() {
handler.stash_diagnostic(span, key, diag);
if let Some((diag, dcx)) = self.into_diagnostic() {
dcx.stash_diagnostic(span, key, diag);
}
}
/// Converts the builder to a `Diagnostic` for later emission,
/// unless handler has disabled such buffering, or `.emit()` was called.
/// unless dcx has disabled such buffering, or `.emit()` was called.
pub fn into_diagnostic(mut self) -> Option<(Diagnostic, &'a DiagCtxt)> {
let dcx = match self.inner.state {
// No `.emit()` calls, the `&DiagCtxt` is still available.
@ -449,7 +443,7 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
}
/// Buffers the diagnostic for later emission,
/// unless handler has disabled such buffering.
/// unless dcx has disabled such buffering.
pub fn buffer(self, buffered_diagnostics: &mut Vec<Diagnostic>) {
buffered_diagnostics.extend(self.into_diagnostic().map(|(diag, _)| diag));
}

39
compiler/rustc_errors/src/diagnostic_impls.rs
View file

@ -1,10 +1,12 @@
use crate::diagnostic::DiagnosticLocation;
use crate::{fluent_generated as fluent, AddToDiagnostic};
use crate::{DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, IntoDiagnostic, IntoDiagnosticArg};
use crate::{
DiagCtxt, DiagnosticArgValue, DiagnosticBuilder, EmissionGuarantee, IntoDiagnostic,
IntoDiagnosticArg, Level,
};
use rustc_ast as ast;
use rustc_ast_pretty::pprust;
use rustc_hir as hir;
use rustc_lint_defs::Level;
use rustc_span::edition::Edition;
use rustc_span::symbol::{Ident, MacroRulesNormalizedIdent, Symbol};
use rustc_span::Span;
@ -216,7 +218,7 @@ impl IntoDiagnosticArg for ast::Visibility {
}
}
impl IntoDiagnosticArg for Level {
impl IntoDiagnosticArg for rustc_lint_defs::Level {
fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
DiagnosticArgValue::Str(Cow::Borrowed(self.to_cmd_flag()))
}
@ -245,19 +247,20 @@ impl<Id> IntoDiagnosticArg for hir::def::Res<Id> {
}
}
impl IntoDiagnostic<'_, !> for TargetDataLayoutErrors<'_> {
fn into_diagnostic(self, dcx: &DiagCtxt) -> DiagnosticBuilder<'_, !> {
impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for TargetDataLayoutErrors<'_> {
fn into_diagnostic(self, dcx: &DiagCtxt, level: Level) -> DiagnosticBuilder<'_, G> {
let mut diag;
match self {
TargetDataLayoutErrors::InvalidAddressSpace { addr_space, err, cause } => {
diag = dcx.struct_fatal(fluent::errors_target_invalid_address_space);
diag =
DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_address_space);
diag.set_arg("addr_space", addr_space);
diag.set_arg("cause", cause);
diag.set_arg("err", err);
diag
}
TargetDataLayoutErrors::InvalidBits { kind, bit, cause, err } => {
diag = dcx.struct_fatal(fluent::errors_target_invalid_bits);
diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_bits);
diag.set_arg("kind", kind);
diag.set_arg("bit", bit);
diag.set_arg("cause", cause);
@ -265,31 +268,39 @@ impl IntoDiagnostic<'_, !> for TargetDataLayoutErrors<'_> {
diag
}
TargetDataLayoutErrors::MissingAlignment { cause } => {
diag = dcx.struct_fatal(fluent::errors_target_missing_alignment);
diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_missing_alignment);
diag.set_arg("cause", cause);
diag
}
TargetDataLayoutErrors::InvalidAlignment { cause, err } => {
diag = dcx.struct_fatal(fluent::errors_target_invalid_alignment);
diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_alignment);
diag.set_arg("cause", cause);
diag.set_arg("err_kind", err.diag_ident());
diag.set_arg("align", err.align());
diag
}
TargetDataLayoutErrors::InconsistentTargetArchitecture { dl, target } => {
diag = dcx.struct_fatal(fluent::errors_target_inconsistent_architecture);
diag = DiagnosticBuilder::new(
dcx,
level,
fluent::errors_target_inconsistent_architecture,
);
diag.set_arg("dl", dl);
diag.set_arg("target", target);
diag
}
TargetDataLayoutErrors::InconsistentTargetPointerWidth { pointer_size, target } => {
diag = dcx.struct_fatal(fluent::errors_target_inconsistent_pointer_width);
diag = DiagnosticBuilder::new(
dcx,
level,
fluent::errors_target_inconsistent_pointer_width,
);
diag.set_arg("pointer_size", pointer_size);
diag.set_arg("target", target);
diag
}
TargetDataLayoutErrors::InvalidBitsSize { err } => {
diag = dcx.struct_fatal(fluent::errors_target_invalid_bits_size);
diag = DiagnosticBuilder::new(dcx, level, fluent::errors_target_invalid_bits_size);
diag.set_arg("err", err);
diag
}
@ -362,9 +373,9 @@ impl IntoDiagnosticArg for Backtrace {
pub struct InvalidFlushedDelayedDiagnosticLevel {
#[primary_span]
pub span: Span,
pub level: rustc_errors::Level,
pub level: Level,
}
impl IntoDiagnosticArg for rustc_errors::Level {
impl IntoDiagnosticArg for Level {
fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {
DiagnosticArgValue::Str(Cow::from(self.to_string()))
}

12
compiler/rustc_errors/src/lib.rs
View file

@ -1279,14 +1279,14 @@ impl DiagCtxt {
&'a self,
err: impl IntoDiagnostic<'a>,
) -> DiagnosticBuilder<'a, ErrorGuaranteed> {
err.into_diagnostic(self)
err.into_diagnostic(self, Level::Error { lint: false })
}
pub fn create_warning<'a>(
&'a self,
warning: impl IntoDiagnostic<'a, ()>,
) -> DiagnosticBuilder<'a, ()> {
warning.into_diagnostic(self)
warning.into_diagnostic(self, Level::Warning(None))
}
pub fn emit_warning<'a>(&'a self, warning: impl IntoDiagnostic<'a, ()>) {
@ -1297,7 +1297,7 @@ impl DiagCtxt {
&'a self,
fatal: impl IntoDiagnostic<'a, FatalError>,
) -> DiagnosticBuilder<'a, FatalError> {
fatal.into_diagnostic(self)
fatal.into_diagnostic(self, Level::Fatal)
}
pub fn emit_almost_fatal<'a>(
@ -1311,7 +1311,7 @@ impl DiagCtxt {
&'a self,
fatal: impl IntoDiagnostic<'a, !>,
) -> DiagnosticBuilder<'a, !> {
fatal.into_diagnostic(self)
fatal.into_diagnostic(self, Level::Fatal)
}
pub fn emit_fatal<'a>(&'a self, fatal: impl IntoDiagnostic<'a, !>) -> ! {
@ -1322,7 +1322,7 @@ impl DiagCtxt {
&'a self,
bug: impl IntoDiagnostic<'a, diagnostic_builder::Bug>,
) -> DiagnosticBuilder<'a, diagnostic_builder::Bug> {
bug.into_diagnostic(self)
bug.into_diagnostic(self, Level::Bug)
}
pub fn emit_bug<'a>(
@ -1340,7 +1340,7 @@ impl DiagCtxt {
&'a self,
note: impl IntoDiagnostic<'a, Noted>,
) -> DiagnosticBuilder<'a, Noted> {
note.into_diagnostic(self)
note.into_diagnostic(self, Level::Note)
}
pub fn emit_artifact_notification(&self, path: &Path, artifact_type: &str) {