Rust: limit number of diagnostics to 100 per trap file

Author: aibaars

rust/extractor/src/translate/base.rs

@@ -117,11 +117,14 @@ pub struct Translator<'a> {
     resolve_paths: bool,
     source_kind: SourceKind,
     macro_context_depth: usize,
+    emit_diagnostic_limit: usize,
 }
 
 const UNKNOWN_LOCATION: (LineCol, LineCol) =
     (LineCol { line: 0, col: 0 }, LineCol { line: 0, col: 0 });
 
+const EMIT_DIAGNOSTIC_LIMIT_PER_FILE: usize = 100;
+
 impl<'a> Translator<'a> {
     pub fn new(
         trap: TrapFile,
@@ -142,6 +145,7 @@ impl<'a> Translator<'a> {
             resolve_paths: resolve_paths == ResolvePaths::Yes,
             source_kind,
             macro_context_depth: 0,
+            emit_diagnostic_limit: EMIT_DIAGNOSTIC_LIMIT_PER_FILE,
         }
     }
     fn location(&self, range: TextRange) -> Option<(LineCol, LineCol)> {
@@ -238,7 +242,8 @@ impl<'a> Translator<'a> {
             &full_message,
         );
 
-        if severity > DiagnosticSeverity::Debug {
+        if severity > DiagnosticSeverity::Debug && self.emit_diagnostic_limit > 0 {
+            self.diagnostic_count -= 1;
             let location = self.trap.emit_location_label(self.label, start, end);
             self.trap
                 .emit_diagnostic(severity, tag, message, full_message, location);