1 files changed, 42 insertions, 0 deletions
diff --git a/audio/src/parse/util.rs b/audio/src/parse/util.rs
new file mode 100644
index 0000000..47779c2
--- /dev/null
+++ b/audio/src/parse/util.rs
@@ -0,0 +1,42 @@
+use super::{ParserError, lexer::Token, pos::Span};
+use std::fmt;
+
+impl std::error::Error for ParserError {}
+
+impl fmt::Display for ParserError {
+	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+		if let Some(file) = &self.file {
+			write!(f, "{file} | ")?;
+		}
+		write!(f, "{} | {}", self.span, self.msg)
+	}
+}
+
+pub trait SpanParserError {
+	type Output;
+	fn span_err(self, span: Span) -> Self::Output;
+}
+
+impl<T, E: std::error::Error> SpanParserError for Result<T, E> {
+	type Output = Result<T, ParserError>;
+	fn span_err(self, span: Span) -> Self::Output {
+		self.map_err(|e| ParserError {
+			span,
+			msg: e.to_string(),
+			file: None,
+		})
+	}
+}
+
+pub trait TokenError {
+	fn token_err<T>(self, msg: impl Into<String>) -> Result<T, ParserError>;
+}
+impl TokenError for Token<'_> {
+	fn token_err<T>(self, msg: impl Into<String>) -> Result<T, ParserError> {
+		Err(ParserError {
+			span: self.span,
+			msg: msg.into(),
+			file: None,
+		})
+	}
+}