Use conditional compilation to choose more efficient implementation

when possible
Qiskit · Feb 15, 2024 · 1e9cf6e · 1e9cf6e
1 parent f2feeec
commit 1e9cf6e
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diff --git a/crates/oq3_syntax/Cargo.toml b/crates/oq3_syntax/Cargo.toml
@@ -27,6 +27,7 @@ smol_str = "0.2.0"
 stdx = { version = "0.0.188", package = "ra_ap_stdx"}
 triomphe = { version = "0.1.8", default-features = false, features = ["std"] }
 xshell = "0.2.2"
+rustversion = "1.0"
 # local crates
 oq3_lexer.workspace = true
 oq3_parser.workspace = true

diff --git a/crates/oq3_syntax/src/ptr.rs b/crates/oq3_syntax/src/ptr.rs
@@ -32,12 +32,20 @@ pub struct AstPtr<N: AstNode> {
 }
 
 impl<N: AstNode> Clone for AstPtr<N> {
+    #[rustversion::before(1.74)]
     fn clone(&self) -> AstPtr<N> {
         AstPtr {
             raw: self.raw.clone(),
             _ty: PhantomData,
         }
     }
+    #[rustversion::since(1.74)]
+    fn clone(&self) -> AstPtr<N> {
+        AstPtr {
+            raw: self.raw,
+            _ty: PhantomData,
+        }
+    }
 }
 
 impl<N: AstNode> Eq for AstPtr<N> {}
@@ -67,6 +75,12 @@ impl<N: AstNode> AstPtr<N> {
         N::cast(syntax_node).unwrap()
     }
 
+    #[rustversion::since(1.74)]
+    pub fn syntax_node_ptr(&self) -> SyntaxNodePtr {
+        self.raw
+    }
+
+    #[rustversion::before(1.74)]
     pub fn syntax_node_ptr(&self) -> SyntaxNodePtr {
         self.raw.clone()
     }