From c5780b413dd362708446221a0d76b4da8d599af3 Mon Sep 17 00:00:00 2001
From: Tommaso Fontana <tommaso.fontana.96@gmail.com>
Date: Mon, 5 Aug 2024 17:03:34 +0200
Subject: [PATCH] fixing compilation

---
 graph/src/builder.rs | 28 +++++++++++++++++++++++++++-
 graph/src/lib.rs     |  2 --
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/graph/src/builder.rs b/graph/src/builder.rs
index 58e185afee83..26ee583155e4 100644
--- a/graph/src/builder.rs
+++ b/graph/src/builder.rs
@@ -11,7 +11,14 @@ pub struct Edge{
     pub dst: String, 
     pub edge_type: Option<String>, 
     pub weight: Option<WeightT>,
-};
+}
+
+impl Edge {
+    // dummy method so the code analysis don't break because no methods for this struct
+    pub fn is_selfloop(&self) -> bool {
+        self.src == self.dst
+    }
+}
 
 impl PartialEq for Edge {
     fn eq(&self, other: &Self) -> bool {
@@ -19,6 +26,25 @@ impl PartialEq for Edge {
     }
 }
 
+impl core::hash::Hash for Edge {
+    fn hash<H: core::hash::Hasher>(&self, state: &mut H) {
+        self.src.hash(state);
+        self.dst.hash(state);
+        self.edge_type.hash(state);
+        if let Some(x) = self.weight {
+            crate::hash::hash_f32(x, state);
+        } else {
+            None::<usize>.hash(state);
+        }
+    }
+}
+
+impl std::string::ToString for Edge {
+    fn to_string(&self) -> String {
+        format!("{} -> {} (type: {:?}, weight: {:?})", self.src, self.dst, self.edge_type, self.weight)
+    }
+}
+
 impl Eq for Edge {}
 
 impl PartialOrd for Edge {
diff --git a/graph/src/lib.rs b/graph/src/lib.rs
index 4918ba3fa06e..5b25811eb2f3 100644
--- a/graph/src/lib.rs
+++ b/graph/src/lib.rs
@@ -10,7 +10,6 @@
 #![warn(unused_macros)]
 #![feature(iter_advance_by)]
 #![feature(impl_trait_in_assoc_type)]
-#![feature(is_sorted)]
 #![feature(string_remove_matches)]
 #![feature(exit_status_error)]
 #![feature(core_intrinsics)]
@@ -18,7 +17,6 @@
 #![feature(pattern)]
 #![deny(unconditional_recursion)]
 #![type_length_limit = "3764086"]
-#![feature(exclusive_range_pattern)]
 
 use std::sync::Arc;