dev(qol): implement From conversion to equivalent HTTP types

src/exp/grpcroute.rs

@@ -409,6 +409,27 @@ pub enum GrpcRouteFilter {
     },
 }
 
+impl From<GrpcRouteFilter> for HttpRouteFilter {
+    fn from(filter: GrpcRouteFilter) -> Self {
+        match filter {
+            GrpcRouteFilter::ExtensionRef { extension_ref } => Self::ExtensionRef { extension_ref },
+            GrpcRouteFilter::RequestMirror { request_mirror } => {
+                Self::RequestMirror { request_mirror }
+            }
+            GrpcRouteFilter::RequestHeaderModifier {
+                request_header_modifier,
+            } => Self::RequestHeaderModifier {
+                request_header_modifier,
+            },
+            GrpcRouteFilter::ResponseHeaderModifier {
+                response_header_modifier,
+            } => Self::ResponseHeaderModifier {
+                response_header_modifier,
+            },
+        }
+    }
+}
+
 /// GrpcBackendRef defines how a GrpcRoute forwards a gRPC request.
 ///
 /// Note that when a namespace different from the local namespace is specified, a
@@ -461,7 +482,23 @@ pub struct GrpcRouteBackendRef {
     ///
     /// Support for this field varies based on the context where used.
     #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub weight: Option<i32>,
+    pub weight: Option<u16>,
+}
+
+impl From<GrpcRouteBackendRef> for HttpBackendRef {
+    fn from(backend: GrpcRouteBackendRef) -> Self {
+        let filters = backend
+            .filters
+            .map(|filters| filters.into_iter().map(Into::into).collect());
+
+        Self {
+            filters,
+            backend_ref: Some(BackendRef {
+                inner: backend.inner,
+                weight: backend.weight,
+            }),
+        }
+    }
 }
 
 #[cfg(test)]