wip sync rework

crates/pathfinder/src/lib.rs

@@ -3,6 +3,7 @@
 pub mod monitoring;
 pub mod sierra;
 pub mod state;
+pub mod sync;
 
 #[cfg(feature = "p2p")]
 pub mod p2p_network;

crates/pathfinder/src/sync.rs

@@ -0,0 +1,50 @@
+#![allow(dead_code, unused_variables)]
+
+mod tracking;
+
+use std::ops::RangeBounds;
+
+use anyhow::Result;
+use pathfinder_common::{BlockHash, BlockNumber};
+
+#[derive(Clone)]
+pub struct BlockHeader {
+    parent: BlockHash,
+    hash: BlockHash,
+    number: BlockNumber,
+    // TODO
+}
+
+pub struct BlockBody {
+    // TODO
+}
+
+pub struct StateUpdate {
+    // TODO
+}
+
+/// Source of starknet block data.
+#[allow(unused_variables)]
+#[async_trait::async_trait]
+pub trait Source: std::marker::Send + std::marker::Sync {
+    async fn block_headers(
+        &self,
+        range: impl RangeBounds<BlockNumber> + std::marker::Send,
+    ) -> Result<Vec<BlockHeader>> {
+        unimplemented!();
+    }
+
+    async fn block_bodies(
+        &self,
+        range: impl RangeBounds<BlockNumber> + std::marker::Send,
+    ) -> Result<Vec<BlockBody>> {
+        unimplemented!();
+    }
+
+    async fn state_updates(
+        &self,
+        range: impl RangeBounds<BlockNumber> + std::marker::Send,
+    ) -> Result<Vec<StateUpdate>> {
+        unimplemented!();
+    }
+}