light: conditional compilation

ethcore/src/client/client.rs

@@ -52,7 +52,7 @@ use blockchain::{BlockChain, BlockProvider, TreeRoute, ImportRoute};
 use client::{
 	BlockID, TransactionID, UncleID, TraceId, ClientConfig, BlockChainClient,
 	MiningBlockChainClient, TraceFilter, CallAnalytics, BlockImportError, Mode,
-	ChainNotify, PruningInfo, ProvingBlockChainClient,
+	ChainNotify, PruningInfo,
 };
 use client::Error as ClientError;
 use env_info::EnvInfo;
@@ -1377,7 +1377,8 @@ impl MayPanic for Client {
 	}
 }
 
-impl ProvingBlockChainClient for Client {
+#[cfg(feature = "light")]
+impl ::client::ProvingBlockChainClient for Client {
 	fn prove_storage(&self, key1: H256, key2: H256, from_level: u32, id: BlockID) -> Vec<Bytes> {
 		self.state_at(id)
 			.and_then(move |state| state.prove_storage(key1, key2, from_level).ok())

ethcore/src/client/mod.rs

@@ -27,7 +27,10 @@ pub use self::config::{Mode, ClientConfig, DatabaseCompactionProfile, BlockChain
 pub use self::error::Error;
 pub use self::test_client::{TestBlockChainClient, EachBlockWith};
 pub use self::chain_notify::ChainNotify;
-pub use self::traits::{BlockChainClient, MiningBlockChainClient, ProvingBlockChainClient};
+pub use self::traits::{BlockChainClient, MiningBlockChainClient};
+
+#[cfg(feature = "light")]
+pub use self::traits::ProvingBlockChainClient;
 
 pub use types::ids::*;
 pub use types::trace_filter::Filter as TraceFilter;

ethcore/src/client/traits.rs

@@ -278,6 +278,7 @@ pub trait MiningBlockChainClient: BlockChainClient {
 }
 
 /// Extended client interface for providing proofs of the state.
+#[cfg(feature = "light")]
 pub trait ProvingBlockChainClient: BlockChainClient {
 	/// Prove account storage at a specific block id.
 	///