crates

parser/src/lib.rs

@@ -12,6 +12,8 @@ mod pre;
 mod pretty;
 mod token;
 
+pub use parser::Parser;
+
 pub type Spanned<T> = (T, Span);
 
 #[derive(PartialEq, Eq, Clone, Copy, Default)]

parser/src/parser.rs

@@ -45,7 +45,7 @@ impl DebugPls for ParserError {
 
 type Result<T, E = ParserError> = std::result::Result<T, E>;
 
-struct Parser<'src, I>
+pub struct Parser<'src, I>
 where
     I: Iterator<Item = (Tok<'src>, Span)>,
 {
@@ -549,6 +549,22 @@ where
     }
 }
 
+impl<'src, I> Iterator for Parser<'src, I>
+where
+    I: Iterator<Item = (Tok<'src>, Span)>,
+     {
+    type Item = Result<Spanned<ExternalDecl>>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.peek_t().is_ok() {
+            let decl = self.external_declaration();
+            Some(decl)
+        } else {
+            None
+        }
+    }
+}
+
 pub fn parse_declarations<'src>(
     src: impl Iterator<Item = (Tok<'src>, Span)>,
 ) -> Result<Vec<Spanned<ExternalDecl>>> {