Spargebra: Makes GroundTermPattern::Triple properly gated with the rdf-star feature

It is only RDF-star specific

Cargo.lock

@@ -1638,7 +1638,7 @@ dependencies = [
 
 [[package]]
 name = "spargebra"
-version = "0.2.7"
+version = "0.2.8-dev"
 dependencies = [
  "oxilangtag",
  "oxiri",

lib/Cargo.toml

@@ -40,7 +40,7 @@ lazy_static = "1"
 json-event-parser = "0.1"
 oxrdf = { version = "0.1.5", path="oxrdf", features = ["rdf-star", "oxsdatatypes"] }
 oxsdatatypes = { version = "0.1.1", path="oxsdatatypes" }
-spargebra = { version = "0.2.7", path="spargebra", features = ["rdf-star", "sep-0002", "sep-0006"] }
+spargebra = { version = "0.2.8-dev", path="spargebra", features = ["rdf-star", "sep-0002", "sep-0006"] }
 sparesults = { version = "0.1.7", path="sparesults", features = ["rdf-star"] }
 
 [target.'cfg(not(target_family = "wasm"))'.dependencies]

lib/spargebra/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "spargebra"
-version = "0.2.7"
+version = "0.2.8-dev"
 authors = ["Tpt <thomas@pellissier-tanon.fr>"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"

lib/spargebra/src/term.rs

@@ -577,6 +577,7 @@ pub enum GroundTermPattern {
     NamedNode(NamedNode),
     Literal(Literal),
     Variable(Variable),
+    #[cfg(feature = "rdf-star")]
     Triple(Box<GroundTriplePattern>),
 }
 
@@ -587,6 +588,7 @@ impl GroundTermPattern {
             Self::NamedNode(term) => write!(f, "{term}"),
             Self::Literal(term) => write!(f, "{term}"),
             Self::Variable(var) => write!(f, "{var}"),
+            #[cfg(feature = "rdf-star")]
             Self::Triple(triple) => triple.fmt_sse(f),
         }
     }
@@ -599,6 +601,7 @@ impl fmt::Display for GroundTermPattern {
             Self::NamedNode(term) => term.fmt(f),
             Self::Literal(term) => term.fmt(f),
             Self::Variable(var) => var.fmt(f),
+            #[cfg(feature = "rdf-star")]
             Self::Triple(triple) => write!(f, "<<{triple}>>"),
         }
     }
@@ -618,6 +621,7 @@ impl From<Literal> for GroundTermPattern {
     }
 }
 
+#[cfg(feature = "rdf-star")]
 impl From<GroundTriplePattern> for GroundTermPattern {
     #[inline]
     fn from(triple: GroundTriplePattern) -> Self {
@@ -818,6 +822,7 @@ pub struct GroundTriplePattern {
 
 impl GroundTriplePattern {
     /// Formats using the [SPARQL S-Expression syntax](https://jena.apache.org/documentation/notes/sse.html).
+    #[allow(dead_code)]
     pub(crate) fn fmt_sse(&self, f: &mut impl Write) -> fmt::Result {
         write!(f, "(triple ")?;
         self.subject.fmt_sse(f)?;