Struct CollectingSink 

pub struct CollectingSink { /* private fields */ }

Collects every diagnostic and remembers whether any was an error.

Used by tests and by library callers that want the full list. Always returns Ok(()) from emit.

Examples

use mos_core::{CollectingSink, Diagnostic, DiagnosticSink, Severity, codes};

let mut sink = CollectingSink::new();
assert!(
    sink.emit(Diagnostic::simple(&codes::MOS0028, None, "unterminated"))
        .is_ok(),
    "collecting sink must not abort"
);
assert!(
    sink.emit(Diagnostic::simple(&codes::MOS0010, None, "missing ident"))
        .is_ok(),
    "collecting sink must not abort"
);

assert!(sink.had_error()); // MOS0010 is an error
assert_eq!(sink.into_diagnostics().len(), 2);

Implementations

impl CollectingSink

pub fn new() -> Self

A fresh, empty sink.

pub fn had_error(&self) -> bool

Whether any Error-severity diagnostic has been emitted so far.

pub fn diagnostics(&self) -> &[Diagnostic]

Borrow the collected diagnostics in emission order.

pub fn into_diagnostics(self) -> Vec<Diagnostic>

Consume the sink, yielding the collected diagnostics.

Trait Implementations

impl Debug for CollectingSink

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CollectingSink

fn default() -> CollectingSink

Returns the “default value” for a type.

impl DiagnosticSink for CollectingSink

fn emit(&mut self, diagnostic: Diagnostic) -> DiagnosticResult<()>

Accept one fully-built diagnostic.