Add new error

crates/filter-parser/src/condition.rs

@@ -135,6 +135,13 @@ fn parse_vectors(input: Span) -> IResult<(Token, Option<Token>, VectorFilter<'_>
     // From this point, we are certain this is a vector filter, so our errors must be final.
     // We could use nom's `cut` but it's better to be explicit about the errors
 
+    if let Ok((_, space)) = tag::<_, _, ()>(" ")(input) {
+        return Err(crate::Error::new_failure_from_kind(
+            space,
+            ErrorKind::VectorFilterMissingEmbedder,
+        ));
+    }
+
     let (input, embedder_name) =
         parse_vector_value(input).map_cut(ErrorKind::VectorFilterInvalidEmbedder)?;
 

crates/filter-parser/src/error.rs

@@ -54,7 +54,7 @@ impl<'a, T> IResultExt<'a> for IResult<'a, T> {
                 nom::Err::Error(e) => *e.context(),
                 nom::Err::Failure(e) => *e.context(),
             };
-            nom::Err::Failure(Error::new_from_kind(input, kind))
+            Error::new_failure_from_kind(input, kind)
         })
     }
 }
@@ -79,6 +79,7 @@ pub enum ErrorKind<'a> {
     MisusedGeoRadius,
     MisusedGeoBoundingBox,
     VectorFilterLeftover,
+    VectorFilterMissingEmbedder,
     VectorFilterInvalidEmbedder,
     VectorFilterMissingFragment,
     VectorFilterInvalidFragment,
@@ -112,6 +113,10 @@ impl<'a> Error<'a> {
         Self { context, kind }
     }
 
+    pub fn new_failure_from_kind(context: Span<'a>, kind: ErrorKind<'a>) -> nom::Err<Self> {
+        nom::Err::Failure(Self::new_from_kind(context, kind))
+    }
+
     pub fn new_from_external(context: Span<'a>, error: impl std::error::Error) -> Self {
         Self::new_from_kind(context, ErrorKind::External(error.to_string()))
     }
@@ -199,6 +204,9 @@ impl Display for Error<'_> {
             ErrorKind::VectorFilterMissingFragment => {
                 writeln!(f, "The vector filter is missing a fragment name.")?
             }
+            ErrorKind::VectorFilterMissingEmbedder => {
+                writeln!(f, "Was expecting embedder name but found nothing.")?
+            }
             ErrorKind::VectorFilterInvalidEmbedder => {
                 writeln!(f, "The vector filter's embedder is invalid.")?
             }

crates/filter-parser/src/lib.rs

@@ -437,7 +437,7 @@ fn parse_geo_bounding_box(input: Span) -> IResult<FilterCondition> {
     let (input, args) = parsed?;
 
     if args.len() != 2 || args[0].len() != 2 || args[1].len() != 2 {
-        return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::GeoBoundingBox)));
+        return Err(Error::new_failure_from_kind(input, ErrorKind::GeoBoundingBox));
     }
 
     let res = FilterCondition::GeoBoundingBox {
@@ -458,7 +458,7 @@ fn parse_geo_point(input: Span) -> IResult<FilterCondition> {
     ))(input)
     .map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::ReservedGeo("_geoPoint"))))?;
     // if we succeeded we still return a `Failure` because geoPoints are not allowed
-    Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::ReservedGeo("_geoPoint"))))
+    Err(Error::new_failure_from_kind(input, ErrorKind::ReservedGeo("_geoPoint")))
 }
 
 /// geoPoint      = WS* "_geoDistance(float WS* "," WS* float WS* "," WS* float)
@@ -472,7 +472,7 @@ fn parse_geo_distance(input: Span) -> IResult<FilterCondition> {
     ))(input)
     .map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::ReservedGeo("_geoDistance"))))?;
     // if we succeeded we still return a `Failure` because `geoDistance` filters are not allowed
-    Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::ReservedGeo("_geoDistance"))))
+    Err(Error::new_failure_from_kind(input, ErrorKind::ReservedGeo("_geoDistance")))
 }
 
 /// geo      = WS* "_geo(float WS* "," WS* float WS* "," WS* float)
@@ -486,7 +486,7 @@ fn parse_geo(input: Span) -> IResult<FilterCondition> {
     ))(input)
     .map_err(|e| e.map(|_| Error::new_from_kind(input, ErrorKind::ReservedGeo("_geo"))))?;
     // if we succeeded we still return a `Failure` because `_geo` filter is not allowed
-    Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::ReservedGeo("_geo"))))
+    Err(Error::new_failure_from_kind(input, ErrorKind::ReservedGeo("_geo")))
 }
 
 fn parse_error_reserved_keyword(input: Span) -> IResult<FilterCondition> {
@@ -1006,8 +1006,8 @@ pub mod tests {
         1:25 _vectors _vectors EXISTS
         ");
         insta::assert_snapshot!(p(r#"_vectors. embedderName EXISTS"#), @r"
-        The vector filter's embedder is invalid.
-        10:30 _vectors. embedderName EXISTS
+        Was expecting embedder name but found nothing.
+        10:11 _vectors. embedderName EXISTS
         ");
         insta::assert_snapshot!(p(r#"_vectors .embedderName EXISTS"#), @r"
         Was expecting an operation `=`, `!=`, `>=`, `>`, `<=`, `<`, `IN`, `NOT IN`, `TO`, `EXISTS`, `NOT EXISTS`, `IS NULL`, `IS NOT NULL`, `IS EMPTY`, `IS NOT EMPTY`, `CONTAINS`, `NOT CONTAINS`, `STARTS WITH`, `NOT STARTS WITH`, `_geoRadius`, or `_geoBoundingBox` at `_vectors .embedderName EXISTS`.

crates/filter-parser/src/value.rs

@@ -132,31 +132,21 @@ pub fn parse_value(input: Span) -> IResult<Token> {
     }
 
     match parse_geo_radius(input) {
-        Ok(_) => {
-            return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeoRadius)))
-        }
+        Ok(_) => return Err(Error::new_failure_from_kind(input, ErrorKind::MisusedGeoRadius)),
         // if we encountered a failure it means the user badly wrote a _geoRadius filter.
         // But instead of showing them how to fix his syntax we are going to tell them they should not use this filter as a value.
         Err(e) if e.is_failure() => {
-            return Err(nom::Err::Failure(Error::new_from_kind(input, ErrorKind::MisusedGeoRadius)))
+            return Err(Error::new_failure_from_kind(input, ErrorKind::MisusedGeoRadius))
         }
         _ => (),
     }
 
     match parse_geo_bounding_box(input) {
-        Ok(_) => {
-            return Err(nom::Err::Failure(Error::new_from_kind(
-                input,
-                ErrorKind::MisusedGeoBoundingBox,
-            )))
-        }
+        Ok(_) => return Err(Error::new_failure_from_kind(input, ErrorKind::MisusedGeoBoundingBox)),
         // if we encountered a failure it means the user badly wrote a _geoBoundingBox filter.
         // But instead of showing them how to fix his syntax we are going to tell them they should not use this filter as a value.
         Err(e) if e.is_failure() => {
-            return Err(nom::Err::Failure(Error::new_from_kind(
-                input,
-                ErrorKind::MisusedGeoBoundingBox,
-            )))
+            return Err(Error::new_failure_from_kind(input, ErrorKind::MisusedGeoBoundingBox))
         }
         _ => (),
     }