diff options
Diffstat (limited to 'src/tools/rust-analyzer/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs')
-rw-r--r-- | src/tools/rust-analyzer/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/src/tools/rust-analyzer/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs b/src/tools/rust-analyzer/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs deleted file mode 100644 index 3fade2dc4..000000000 --- a/src/tools/rust-analyzer/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs +++ /dev/null @@ -1,166 +0,0 @@ -//! lib-proc-macro diagnostic -//! -//! Copy from <https://github.com/rust-lang/rust/blob/e45d9973b2665897a768312e971b82cc62633103/src/libproc_macro/diagnostic.rs> -//! augmented with removing unstable features - -use super::Span; - -/// An enum representing a diagnostic level. -#[derive(Copy, Clone, Debug)] -#[non_exhaustive] -pub enum Level { - /// An error. - Error, - /// A warning. - Warning, - /// A note. - Note, - /// A help message. - Help, -} - -/// Trait implemented by types that can be converted into a set of `Span`s. -pub trait MultiSpan { - /// Converts `self` into a `Vec<Span>`. - fn into_spans(self) -> Vec<Span>; -} - -impl MultiSpan for Span { - fn into_spans(self) -> Vec<Span> { - vec![self] - } -} - -impl MultiSpan for Vec<Span> { - fn into_spans(self) -> Vec<Span> { - self - } -} - -impl<'a> MultiSpan for &'a [Span] { - fn into_spans(self) -> Vec<Span> { - self.to_vec() - } -} - -/// A structure representing a diagnostic message and associated children -/// messages. -#[derive(Clone, Debug)] -pub struct Diagnostic { - level: Level, - message: String, - spans: Vec<Span>, - children: Vec<Diagnostic>, -} - -macro_rules! diagnostic_child_methods { - ($spanned:ident, $regular:ident, $level:expr) => { - #[doc = concat!("Adds a new child diagnostics message to `self` with the [`", - stringify!($level), "`] level, and the given `spans` and `message`.")] - pub fn $spanned<S, T>(mut self, spans: S, message: T) -> Diagnostic - where - S: MultiSpan, - T: Into<String>, - { - self.children.push(Diagnostic::spanned(spans, $level, message)); - self - } - - #[doc = concat!("Adds a new child diagnostic message to `self` with the [`", - stringify!($level), "`] level, and the given `message`.")] - pub fn $regular<T: Into<String>>(mut self, message: T) -> Diagnostic { - self.children.push(Diagnostic::new($level, message)); - self - } - }; -} - -/// Iterator over the children diagnostics of a `Diagnostic`. -#[derive(Debug, Clone)] -pub struct Children<'a>(std::slice::Iter<'a, Diagnostic>); - -impl<'a> Iterator for Children<'a> { - type Item = &'a Diagnostic; - - fn next(&mut self) -> Option<Self::Item> { - self.0.next() - } -} - -impl Diagnostic { - /// Creates a new diagnostic with the given `level` and `message`. - pub fn new<T: Into<String>>(level: Level, message: T) -> Diagnostic { - Diagnostic { level, message: message.into(), spans: vec![], children: vec![] } - } - - /// Creates a new diagnostic with the given `level` and `message` pointing to - /// the given set of `spans`. - pub fn spanned<S, T>(spans: S, level: Level, message: T) -> Diagnostic - where - S: MultiSpan, - T: Into<String>, - { - Diagnostic { level, message: message.into(), spans: spans.into_spans(), children: vec![] } - } - - diagnostic_child_methods!(span_error, error, Level::Error); - diagnostic_child_methods!(span_warning, warning, Level::Warning); - diagnostic_child_methods!(span_note, note, Level::Note); - diagnostic_child_methods!(span_help, help, Level::Help); - - /// Returns the diagnostic `level` for `self`. - pub fn level(&self) -> Level { - self.level - } - - /// Sets the level in `self` to `level`. - pub fn set_level(&mut self, level: Level) { - self.level = level; - } - - /// Returns the message in `self`. - pub fn message(&self) -> &str { - &self.message - } - - /// Sets the message in `self` to `message`. - pub fn set_message<T: Into<String>>(&mut self, message: T) { - self.message = message.into(); - } - - /// Returns the `Span`s in `self`. - pub fn spans(&self) -> &[Span] { - &self.spans - } - - /// Sets the `Span`s in `self` to `spans`. - pub fn set_spans<S: MultiSpan>(&mut self, spans: S) { - self.spans = spans.into_spans(); - } - - /// Returns an iterator over the children diagnostics of `self`. - pub fn children(&self) -> Children<'_> { - Children(self.children.iter()) - } - - /// Emit the diagnostic. - pub fn emit(self) { - fn to_internal(spans: Vec<Span>) -> super::bridge::client::MultiSpan { - let mut multi_span = super::bridge::client::MultiSpan::new(); - for span in spans { - multi_span.push(span.0); - } - multi_span - } - - let mut diag = super::bridge::client::Diagnostic::new( - self.level, - &self.message[..], - to_internal(self.spans), - ); - for c in self.children { - diag.sub(c.level, &c.message[..], to_internal(c.spans)); - } - diag.emit(); - } -} |