Ethcore crate split part 1 (#6041)

* split out types into separate crate * split out evm into its own crate
2017-07-12 13:09:17 +02:00 · 2017-07-12 13:09:17 +02:00 · d365281cce
commit d365281cce
parent 24c8510932
108 changed files with 806 additions and 777 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -253,6 +253,16 @@ dependencies = [
 "unicode-normalization 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "common-types"
+version = "0.1.0"
+dependencies = [
+ "ethcore-util 1.7.0",
+ "ethjson 0.1.0",
+ "rlp 0.2.0",
+ "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "conv"
 version = "0.3.3"
@ -436,6 +446,7 @@ dependencies = [
 "bn 0.4.4 (git+https://github.com/paritytech/bn)",
 "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
+ "common-types 0.1.0",
 "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "env_logger 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethabi 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -452,7 +463,7 @@ dependencies = [
 "ethjson 0.1.0",
 "ethkey 0.2.0",
 "ethstore 0.1.0",
- "evmjit 1.7.0",
+ "evm 0.1.0",
 "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "hardware-wallet 1.7.0",
 "hyper 0.10.0-a.0 (git+https://github.com/paritytech/hyper)",
@ -464,7 +475,6 @@ dependencies = [
 "native-contracts 0.1.0",
 "num 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-wasm 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 "rlp 0.2.0",
 "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
@ -474,7 +484,6 @@ dependencies = [
 "stats 0.1.0",
 "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "transient-hashmap 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "wasm-utils 0.1.0 (git+https://github.com/paritytech/wasm-utils)",
 ]

 [[package]]
@ -585,6 +594,7 @@ dependencies = [
 "ethcore-ipc-codegen 1.7.0",
 "ethcore-network 1.7.0",
 "ethcore-util 1.7.0",
+ "evm 0.1.0",
 "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "itertools 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@ -839,6 +849,24 @@ dependencies = [
 "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "evm"
+version = "0.1.0"
+dependencies = [
+ "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "common-types 0.1.0",
+ "ethcore-util 1.7.0",
+ "ethjson 0.1.0",
+ "evmjit 1.7.0",
+ "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-wasm 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rlp 0.2.0",
+ "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasm-utils 0.1.0 (git+https://github.com/paritytech/wasm-utils)",
+]
+
 [[package]]
 name = "evmbin"
 version = "0.1.0"
@ -846,6 +874,7 @@ dependencies = [
 "docopt 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethcore 1.7.0",
 "ethcore-util 1.7.0",
+ "evm 0.1.0",
 "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_derive 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
@ -1850,6 +1879,7 @@ dependencies = [
 "ethkey 0.2.0",
 "ethstore 0.1.0",
 "ethsync 1.7.0",
+ "evm 0.1.0",
 "fetch 0.1.0",
 "futures 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
--- a/ethcore/Cargo.toml
+++ b/ethcore/Cargo.toml
@ -16,6 +16,7 @@ bloomchain = "0.1"
 bn = { git = "https://github.com/paritytech/bn" }
 byteorder = "1.0"
 clippy = { version = "0.0.103", optional = true}
+common-types = { path = "types" }
 crossbeam = "0.2.9"
 env_logger = "0.4"
 ethabi = "2.0"
@ -31,7 +32,7 @@ ethcore-util = { path = "../util" }
 ethjson = { path = "../json" }
 ethkey = { path = "../ethkey" }
 ethstore = { path = "../ethstore" }
-evmjit = { path = "../evmjit", optional = true }
+evm = { path = "evm" }
 futures = "0.1"
 hardware-wallet = { path = "../hw" }
 hyper = { git = "https://github.com/paritytech/hyper", default-features = false }
@ -52,14 +53,12 @@ semver = "0.6"
 stats = { path = "../util/stats" }
 time = "0.1"
 transient-hashmap = "0.4"
-parity-wasm = "0.12"
-wasm-utils = { git = "https://github.com/paritytech/wasm-utils" }

 [dev-dependencies]
 native-contracts = { path = "native_contracts", features = ["test_contracts"] }

 [features]
-jit = ["evmjit"]
+jit = ["evm/jit"]
 evm-debug = ["slow-blocks"]
 evm-debug-tests = ["evm-debug"]
 slow-blocks = [] # Use SLOW_TX_DURATION="50" (compile time!) to track transactions over 50ms
--- a/ethcore/build.rs
+++ b/ethcore/build.rs
@ -17,7 +17,6 @@
 extern crate ethcore_ipc_codegen;

 fn main() {
-	ethcore_ipc_codegen::derive_binary("src/types/mod.rs.in").unwrap();
 	ethcore_ipc_codegen::derive_ipc_cond("src/client/traits.rs", cfg!(feature="ipc")).unwrap();
 	ethcore_ipc_codegen::derive_ipc_cond("src/snapshot/snapshot_service_trait.rs", cfg!(feature="ipc")).unwrap();
 	ethcore_ipc_codegen::derive_ipc_cond("src/client/chain_notify.rs", cfg!(feature="ipc")).unwrap();
--- a/ethcore/evm/Cargo.toml
+++ b/ethcore/evm/Cargo.toml
@ -0,0 +1,23 @@
+[package]
+name = "evm"
+version = "0.1.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+
+[dependencies]
+bit-set = "0.4"
+byteorder = "1.0"
+common-types = { path = "../types" }
+ethcore-util = { path = "../../util" }
+evmjit = { path = "../../evmjit", optional = true }
+ethjson = { path = "../../json" }
+lazy_static = "0.2"
+log = "0.3"
+rlp = { path = "../../util/rlp" }
+parity-wasm = "0.12"
+wasm-utils = { git = "https://github.com/paritytech/wasm-utils" }
+
+[dev-dependencies]
+rustc-hex = "1.0"
+
+[features]
+jit = ["evmjit"]
--- a/ethcore/evm/src/action_params.rs
+++ b/ethcore/evm/src/action_params.rs
@ -19,7 +19,8 @@ use util::{Address, Bytes, U256};
 use util::hash::{H256};
 use util::sha3::{Hashable, SHA3_EMPTY};
 use ethjson;
-use types::executed::CallType;
+
+use {CallType};

 use std::sync::Arc;

--- a/ethcore/evm/src/benches/mod.rs
+++ b/ethcore/evm/src/benches/mod.rs
@ -25,7 +25,7 @@ extern crate test;
 use self::test::{Bencher, black_box};

 use util::*;
-use action_params::ActionParams;
+use evm::action_params::ActionParams;
 use evm::{self, Factory, VMType};
 use evm::tests::FakeExt;

--- a/ethcore/evm/src/call_type.rs
+++ b/ethcore/evm/src/call_type.rs
@ -0,0 +1,70 @@
+//! EVM call types.
+
+use rlp::{Encodable, Decodable, DecoderError, RlpStream, UntrustedRlp};
+
+/// The type of the call-like instruction.
+#[derive(Debug, PartialEq, Clone)]
+pub enum CallType {
+	/// Not a CALL.
+	None,
+	/// CALL.
+	Call,
+	/// CALLCODE.
+	CallCode,
+	/// DELEGATECALL.
+	DelegateCall,
+	/// STATICCALL
+	StaticCall,
+}
+
+impl Encodable for CallType {
+	fn rlp_append(&self, s: &mut RlpStream) {
+		let v = match *self {
+			CallType::None => 0u32,
+			CallType::Call => 1,
+			CallType::CallCode => 2,
+			CallType::DelegateCall => 3,
+			CallType::StaticCall => 4,
+		};
+		Encodable::rlp_append(&v, s);
+	}
+}
+
+impl Decodable for CallType {
+	fn decode(rlp: &UntrustedRlp) -> Result<Self, DecoderError> {
+		rlp.as_val().and_then(|v| Ok(match v {
+			0u32 => CallType::None,
+			1 => CallType::Call,
+			2 => CallType::CallCode,
+			3 => CallType::DelegateCall,
+			4 => CallType::StaticCall,
+			_ => return Err(DecoderError::Custom("Invalid value of CallType item")),
+		}))
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use rlp::*;
+	use super::CallType;
+
+	#[test]
+	fn encode_call_type() {
+		let ct = CallType::Call;
+
+		let mut s = RlpStream::new_list(2);
+		s.append(&ct);
+		assert!(!s.is_finished(), "List shouldn't finished yet");
+		s.append(&ct);
+		assert!(s.is_finished(), "List should be finished now");
+		s.out();
+	}
+
+	#[test]
+	fn should_encode_and_decode_call_type() {
+		let original = CallType::Call;
+		let encoded = encode(&original);
+		let decoded = decode(&encoded);
+		assert_eq!(original, decoded);
+	}
+}
--- a/ethcore/evm/src/env_info.rs
+++ b/ethcore/evm/src/env_info.rs
@ -19,7 +19,7 @@
 use std::cmp;
 use std::sync::Arc;
 use util::{U256, Address, H256, Hashable};
-use header::BlockNumber;
+use types::BlockNumber;
 use ethjson;

 /// Simple vector of hashes, should be at most 256 items large, can be smaller if being used
@ -82,7 +82,7 @@ mod tests {
 	use ethjson;

 	#[test]
-	fn it_serializes_form_json() {
+	fn it_serializes_from_json() {
 		let env_info = EnvInfo::from(ethjson::vm::Env {
 			author: ethjson::hash::Address(Address::from_str("000000f00000000f000000000000f00000000f00").unwrap()),
 			number: ethjson::uint::Uint(U256::from(1_112_339)),
--- a/ethcore/evm/src/evm.rs
+++ b/ethcore/evm/src/evm.rs
@ -19,8 +19,8 @@
 use std::{ops, cmp, fmt};
 use util::{U128, U256, U512, trie};
 use action_params::ActionParams;
-use evm::Ext;
-use builtin;
+use {Ext};
+
 use super::wasm;

 /// Evm errors.
@ -77,12 +77,6 @@ impl From<Box<trie::TrieError>> for Error {
 	}
 }

-impl From<builtin::Error> for Error {
-	fn from(err: builtin::Error) -> Self {
-		Error::BuiltIn(err.0)
-	}
-}
-
 impl From<wasm::RuntimeError> for Error {
 	fn from(err: wasm::RuntimeError) -> Self {
 		Error::Wasm(format!("Runtime error: {:?}", err))
@ -109,7 +103,6 @@ impl fmt::Display for Error {
 /// A specialized version of Result over EVM errors.
 pub type Result<T> = ::std::result::Result<T, Error>;

-
 /// Return data buffer. Holds memory from a previous call and a slice into that memory.
 #[derive(Debug)]
 pub struct ReturnData {
--- a/ethcore/evm/src/ext.rs
+++ b/ethcore/evm/src/ext.rs
@ -17,9 +17,10 @@
 //! Interface for Evm externalities.

 use util::*;
-use evm::{self, Schedule, ReturnData};
-use env_info::*;
-use types::executed::CallType;
+use call_type::CallType;
+use env_info::EnvInfo;
+use schedule::Schedule;
+use evm::{self, ReturnData};

 /// Result of externalities create function.
 pub enum ContractCreateResult {
--- a/ethcore/evm/src/factory.rs
+++ b/ethcore/evm/src/factory.rs
--- a/ethcore/evm/src/instructions.rs
+++ b/ethcore/evm/src/instructions.rs
--- a/ethcore/evm/src/interpreter/gasometer.rs
+++ b/ethcore/evm/src/interpreter/gasometer.rs
@ -16,10 +16,11 @@

 use util::*;
 use super::u256_to_address;
-use evm::{self, CostType};
-use evm::instructions::{self, Instruction, InstructionInfo};
-use evm::interpreter::stack::Stack;
-use evm::schedule::Schedule;
+
+use {evm, ext};
+use instructions::{self, Instruction, InstructionInfo};
+use interpreter::stack::Stack;
+use schedule::Schedule;

 macro_rules! overflowing {
 	($x: expr) => {{
@ -30,26 +31,26 @@ macro_rules! overflowing {
 }

 #[cfg_attr(feature="dev", allow(enum_variant_names))]
-enum Request<Cost: CostType> {
+enum Request<Cost: ::evm::CostType> {
 	Gas(Cost),
 	GasMem(Cost, Cost),
 	GasMemProvide(Cost, Cost, Option<U256>),
 	GasMemCopy(Cost, Cost, Cost)
 }

-pub struct InstructionRequirements<Cost: CostType> {
+pub struct InstructionRequirements<Cost> {
 	pub gas_cost: Cost,
 	pub provide_gas: Option<Cost>,
 	pub memory_total_gas: Cost,
 	pub memory_required_size: usize,
 }

-pub struct Gasometer<Gas: CostType> {
+pub struct Gasometer<Gas> {
 	pub current_gas: Gas,
 	pub current_mem_gas: Gas,
 }

-impl<Gas: CostType> Gasometer<Gas> {
+impl<Gas: evm::CostType> Gasometer<Gas> {

 	pub fn new(current_gas: Gas) -> Self {
 		Gasometer {
@ -106,7 +107,7 @@ impl<Gas: CostType> Gasometer<Gas> {
 	/// it will be the amount of gas that the current context provides to the child context.
 	pub fn requirements(
 		&mut self,
-		ext: &evm::Ext,
+		ext: &ext::Ext,
 		instruction: Instruction,
 		info: &InstructionInfo,
 		stack: &Stack<U256>,
@ -290,7 +291,7 @@ impl<Gas: CostType> Gasometer<Gas> {
 		})
 	}

-	fn mem_gas_cost(&self, schedule: &evm::Schedule, current_mem_size: usize, mem_size: &Gas) -> evm::Result<(Gas, Gas, usize)> {
+	fn mem_gas_cost(&self, schedule: &Schedule, current_mem_size: usize, mem_size: &Gas) -> evm::Result<(Gas, Gas, usize)> {
 		let gas_for_mem = |mem_size: Gas| {
 			let s = mem_size >> 5;
 			// s * memory_gas + s * s / quad_coeff_div
@ -318,12 +319,12 @@ impl<Gas: CostType> Gasometer<Gas> {


 #[inline]
-fn mem_needed_const<Gas: CostType>(mem: &U256, add: usize) -> evm::Result<Gas> {
+fn mem_needed_const<Gas: evm::CostType>(mem: &U256, add: usize) -> evm::Result<Gas> {
 	Gas::from_u256(overflowing!(mem.overflowing_add(U256::from(add))))
 }

 #[inline]
-fn mem_needed<Gas: CostType>(offset: &U256, size: &U256) -> evm::Result<Gas> {
+fn mem_needed<Gas: evm::CostType>(offset: &U256, size: &U256) -> evm::Result<Gas> {
 	if size.is_zero() {
 		return Ok(Gas::from(0));
 	}
@ -332,7 +333,7 @@ fn mem_needed<Gas: CostType>(offset: &U256, size: &U256) -> evm::Result<Gas> {
 }

 #[inline]
-fn add_gas_usize<Gas: CostType>(value: Gas, num: usize) -> (Gas, bool) {
+fn add_gas_usize<Gas: evm::CostType>(value: Gas, num: usize) -> (Gas, bool) {
 	value.overflow_add(Gas::from(num))
 }

@ -340,7 +341,7 @@ fn add_gas_usize<Gas: CostType>(value: Gas, num: usize) -> (Gas, bool) {
 fn test_mem_gas_cost() {
 	// given
 	let gasometer = Gasometer::<U256>::new(U256::zero());
-	let schedule = evm::Schedule::default();
+	let schedule = Schedule::default();
 	let current_mem_size = 5;
 	let mem_size = !U256::zero();

@ -357,7 +358,7 @@ fn test_mem_gas_cost() {
 fn test_calculate_mem_cost() {
 	// given
 	let gasometer = Gasometer::<usize>::new(0);
-	let schedule = evm::Schedule::default();
+	let schedule = Schedule::default();
 	let current_mem_size = 0;
 	let mem_size = 5;

--- a/ethcore/evm/src/interpreter/informant.rs
+++ b/ethcore/evm/src/interpreter/informant.rs
--- a/ethcore/evm/src/interpreter/memory.rs
+++ b/ethcore/evm/src/interpreter/memory.rs
@ -15,7 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

 use util::U256;
-use evm::ReturnData;
+use {ReturnData};

 const MAX_RETURN_WASTE_BYTES: usize = 16384;

--- a/ethcore/evm/src/interpreter/mod.rs
+++ b/ethcore/evm/src/interpreter/mod.rs
@ -30,9 +30,10 @@ pub use self::shared_cache::SharedCache;

 use std::marker::PhantomData;
 use action_params::{ActionParams, ActionValue};
-use types::executed::CallType;
-use evm::instructions::{self, Instruction, InstructionInfo};
-use evm::{self, MessageCallResult, ContractCreateResult, GasLeft, CostType, CreateContractAddress, ReturnData};
+use call_type::CallType;
+use instructions::{self, Instruction, InstructionInfo};
+use evm::{self, GasLeft, CostType, ReturnData};
+use ext::{self, MessageCallResult, ContractCreateResult, CreateContractAddress};
 use bit_set::BitSet;

 use util::*;
@ -107,7 +108,7 @@ pub struct Interpreter<Cost: CostType> {
 }

 impl<Cost: CostType> evm::Evm for Interpreter<Cost> {
-	fn exec(&mut self, params: ActionParams, ext: &mut evm::Ext) -> evm::Result<GasLeft> {
+	fn exec(&mut self, params: ActionParams, ext: &mut ext::Ext) -> evm::Result<GasLeft> {
 		self.mem.clear();

 		let mut informant = informant::EvmInformant::new(ext.depth());
@ -204,7 +205,7 @@ impl<Cost: CostType> Interpreter<Cost> {
 		}
 	}

-	fn verify_instruction(&self, ext: &evm::Ext, instruction: Instruction, info: &InstructionInfo, stack: &Stack<U256>) -> evm::Result<()> {
+	fn verify_instruction(&self, ext: &ext::Ext, instruction: Instruction, info: &InstructionInfo, stack: &Stack<U256>) -> evm::Result<()> {
 		let schedule = ext.schedule();

 		if (instruction == instructions::DELEGATECALL && !schedule.have_delegate_call) ||
@ -270,7 +271,7 @@ impl<Cost: CostType> Interpreter<Cost> {
 		&mut self,
 		gas: Cost,
 		params: &ActionParams,
-		ext: &mut evm::Ext,
+		ext: &mut ext::Ext,
 		instruction: Instruction,
 		code: &mut CodeReader,
 		stack: &mut Stack<U256>,
--- a/ethcore/evm/src/interpreter/shared_cache.rs
+++ b/ethcore/evm/src/interpreter/shared_cache.rs
--- a/ethcore/evm/src/interpreter/stack.rs
+++ b/ethcore/evm/src/interpreter/stack.rs
@ -15,7 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

 use std::fmt;
-use evm::instructions;
+use instructions;

 /// Stack trait with VM-friendly API
 pub trait Stack<T> {
--- a/ethcore/evm/src/jit.rs
+++ b/ethcore/evm/src/jit.rs
@ -18,7 +18,7 @@
 use util::*;
 use evmjit;
 use evm::{self, GasLeft};
-use types::executed::CallType;
+use evm::CallType;

 /// Should be used to convert jit types to ethcore
 trait FromJit<T>: Sized {
--- a/ethcore/evm/src/lib.rs
+++ b/ethcore/evm/src/lib.rs
@ -16,16 +16,41 @@

 //! Ethereum virtual machine.

+extern crate byteorder;
+extern crate bit_set;
+extern crate common_types as types;
+extern crate ethcore_util as util;
+extern crate ethjson;
+extern crate rlp;
+extern crate parity_wasm;
+extern crate wasm_utils;
+
+#[macro_use]
+extern crate lazy_static;
+
+#[macro_use]
+extern crate log;
+
+#[cfg(feature = "jit")]
+extern crate evmjit;
+
+#[cfg(test)]
+extern crate rustc_hex;
+
+pub mod action_params;
+pub mod call_type;
+pub mod env_info;
 pub mod ext;
 pub mod evm;
 pub mod interpreter;
-#[macro_use]
-pub mod factory;
 pub mod schedule;
 pub mod wasm;

+#[macro_use]
+pub mod factory;
 mod vmtype;
 mod instructions;
+
 #[cfg(feature = "jit" )]
 mod jit;

@ -34,10 +59,12 @@ mod tests;
 #[cfg(all(feature="benches", test))]
 mod benches;

+pub use self::action_params::ActionParams;
+pub use self::call_type::CallType;
+pub use self::env_info::EnvInfo;
 pub use self::evm::{Evm, Error, Finalize, FinalizationResult, GasLeft, Result, CostType, ReturnData};
 pub use self::ext::{Ext, ContractCreateResult, MessageCallResult, CreateContractAddress};
 pub use self::instructions::{InstructionInfo, INSTRUCTIONS, push_bytes};
 pub use self::vmtype::VMType;
 pub use self::factory::Factory;
 pub use self::schedule::{Schedule, CleanDustMode};
-pub use types::executed::CallType;
--- a/ethcore/evm/src/schedule.rs
+++ b/ethcore/evm/src/schedule.rs
@ -15,7 +15,6 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

 //! Cost schedule and other parameterisations for the EVM.
-use spec::CommonParams;

 /// Definition of the cost schedule and other parameterisations for the EVM.
 pub struct Schedule {
@ -185,26 +184,6 @@ impl Schedule {
 		}
 	}

-	/// Schedule for the post-EIP-150-era of the Ethereum main net.
-	pub fn from_params(block_number: u64, params: &CommonParams) -> Schedule {
-		let mut schedule = Schedule::new_post_eip150(usize::max_value(), true, true, true);
-		schedule.apply_params(block_number, params);
-		schedule
-	}
-
-	/// Apply common spec config parameters to the schedule.
- 	pub fn apply_params(&mut self, block_number: u64, params: &CommonParams) {
-		self.have_create2 = block_number >= params.eip86_transition;
-		self.have_revert = block_number >= params.eip140_transition;
-		self.have_static_call = block_number >= params.eip214_transition;
-		if block_number >= params.eip210_transition {
-			self.blockhash_gas = 350;
-		}
-		if block_number >= params.dust_protection_transition {
-			self.kill_dust = if params.remove_dust_contracts { CleanDustMode::WithCodeAndStorage } else { CleanDustMode::BasicOnly };
-		}
-	}
-
 	/// Schedule for the Metropolis of the Ethereum main net.
 	pub fn new_metropolis() -> Schedule {
 		let mut schedule = Self::new_post_eip150(24576, true, true, true);
--- a/ethcore/evm/src/tests.rs
+++ b/ethcore/evm/src/tests.rs
@ -19,13 +19,12 @@ use rustc_hex::FromHex;
 use util::*;
 use action_params::{ActionParams, ActionValue};
 use env_info::EnvInfo;
-use types::executed::CallType;
-use evm::{self, Ext, Schedule, Factory, GasLeft, VMType, ContractCreateResult, MessageCallResult, CreateContractAddress, ReturnData};
-use tests::helpers::*;
-use types::transaction::SYSTEM_ADDRESS;
-use executive::Executive;
-use state::Substate;
-use trace::{NoopVMTracer, NoopTracer};
+use call_type::CallType;
+use schedule::Schedule;
+use evm::{self, GasLeft, ReturnData};
+use ext::{Ext, ContractCreateResult, MessageCallResult, CreateContractAddress};
+use factory::Factory;
+use vmtype::VMType;

 pub struct FakeLogEntry {
 	topics: Vec<H256>,
@ -438,67 +437,6 @@ fn test_blockhash(factory: super::Factory) {
 	assert_eq!(ext.store.get(&H256::new()).unwrap(), &blockhash);
 }

-evm_test!{test_blockhash_eip210: test_blockhash_eip210_jit, test_blockhash_eip210_int}
-fn test_blockhash_eip210(factory: super::Factory) {
-	let get_prev_hash_code = Arc::new("600143034060205260206020f3".from_hex().unwrap()); // this returns previous block hash
-	let get_prev_hash_code_hash = get_prev_hash_code.sha3();
-	// This is same as DEFAULT_BLOCKHASH_CONTRACT except for metropolis transition block check removed.
-	let test_blockhash_contract = "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";
-	let blockhash_contract_code = Arc::new(test_blockhash_contract.from_hex().unwrap());
-	let blockhash_contract_code_hash = blockhash_contract_code.sha3();
-	let engine = TestEngine::new_metropolis();
-	let mut env_info = EnvInfo::default();
-
-	// populate state with 256 last hashes
-	let mut state = get_temp_state_with_factory(factory);
-	let contract_address: Address = 0xf0.into();
-	state.init_code(&contract_address, (*blockhash_contract_code).clone()).unwrap();
-	for i in 1 .. 257 {
-		env_info.number = i.into();
-		let params = ActionParams {
-			code_address: contract_address.clone(),
-			address: contract_address,
-			sender: SYSTEM_ADDRESS.clone(),
-			origin: SYSTEM_ADDRESS.clone(),
-			gas: 100000.into(),
-			gas_price: 0.into(),
-			value: ActionValue::Transfer(0.into()),
-			code: Some(blockhash_contract_code.clone()),
-			code_hash: Some(blockhash_contract_code_hash),
-			data: Some(H256::from(i - 1).to_vec()),
-			call_type: CallType::Call,
-		};
-		let mut ex = Executive::new(&mut state, &env_info, &engine);
-		let mut substate = Substate::new();
-		let mut output = [];
-		if let Err(e) = ex.call(params, &mut substate, BytesRef::Fixed(&mut output), &mut NoopTracer, &mut NoopVMTracer) {
-			panic!("Encountered error on updating last hashes: {}", e);
-		}
-	}
-
-	env_info.number = 256;
-	let params = ActionParams {
-		code_address: Address::new(),
-		address: Address::new(),
-		sender: Address::new(),
-		origin: Address::new(),
-		gas: 100000.into(),
-		gas_price: 0.into(),
-		value: ActionValue::Transfer(0.into()),
-		code: Some(get_prev_hash_code),
-		code_hash: Some(get_prev_hash_code_hash),
-		data: None,
-		call_type: CallType::Call,
-	};
-	let mut ex = Executive::new(&mut state, &env_info, &engine);
-	let mut substate = Substate::new();
-	let mut output = H256::new();
-	if let Err(e) = ex.call(params, &mut substate, BytesRef::Fixed(&mut output), &mut NoopTracer, &mut NoopVMTracer) {
-		panic!("Encountered error on getting last hash: {}", e);
-	}
-	assert_eq!(output, 255.into());
-}
-
 evm_test!{test_calldataload: test_calldataload_jit, test_calldataload_int}
 fn test_calldataload(factory: super::Factory) {
 	let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
--- a/ethcore/evm/src/vmtype.rs
+++ b/ethcore/evm/src/vmtype.rs
--- a/ethcore/evm/src/wasm/call_args.rs
+++ b/ethcore/evm/src/wasm/call_args.rs
--- a/ethcore/evm/src/wasm/env.rs
+++ b/ethcore/evm/src/wasm/env.rs
--- a/ethcore/evm/src/wasm/mod.rs
+++ b/ethcore/evm/src/wasm/mod.rs
@ -58,7 +58,7 @@ impl WasmInterpreter {

 impl evm::Evm for WasmInterpreter {

-	fn exec(&mut self, params: ActionParams, ext: &mut evm::Ext) -> evm::Result<GasLeft> {
+	fn exec(&mut self, params: ActionParams, ext: &mut ::ext::Ext) -> evm::Result<GasLeft> {
 		use parity_wasm::elements::Deserialize;

 		let code = params.code.expect("exec is only called on contract with code; qed");
@ -76,7 +76,7 @@ impl evm::Evm for WasmInterpreter {
 		if params.gas > ::std::u64::MAX.into() {
 			return Err(evm::Error::Wasm("Wasm interpreter cannot run contracts with gas >= 2^64".to_owned()));
 		}
-		
+
 		let mut runtime = Runtime::with_params(
 			ext,
 			env_memory,
@ -106,7 +106,7 @@ impl evm::Evm for WasmInterpreter {

 		{
 			let execution_params = interpreter::ExecutionParams::with_external(
-				"env".into(), 
+				"env".into(),
 				Arc::new(
 					interpreter::env_native_module(env_instance, native_bindings(&mut runtime))
 						.map_err(|err| {
@ -115,7 +115,7 @@ impl evm::Evm for WasmInterpreter {
 						})?
 				)
 			).add_argument(interpreter::RuntimeValue::I32(d_ptr.as_raw() as i32));
-		
+
 			let module_instance = self.program.add_module("contract", contract_module, Some(&execution_params.externals))
 				.map_err(|err| {
 					trace!(target: "wasm", "Error adding contract module: {:?}", err);
@ -138,11 +138,11 @@ impl evm::Evm for WasmInterpreter {
 			// todo: use memory views to avoid copy
 			self.result.extend(result.pop(&*runtime.memory())?);
 			let len = self.result.len();
-			Ok(GasLeft::NeedsReturn { 
-				gas_left: runtime.gas_left()?.into(), 
+			Ok(GasLeft::NeedsReturn {
+				gas_left: runtime.gas_left()?.into(),
 				data: ReturnData::new(
-					::std::mem::replace(&mut self.result, Vec::with_capacity(DEFAULT_RESULT_BUFFER)), 
-					0, 
+					::std::mem::replace(&mut self.result, Vec::with_capacity(DEFAULT_RESULT_BUFFER)),
+					0,
 					len,
 				),
 				apply_state: true,
@ -156,4 +156,4 @@ fn native_bindings<'a>(runtime: &'a mut Runtime) -> interpreter::UserFunctions<'
 		executor: runtime,
 		functions: ::std::borrow::Cow::from(env::SIGNATURES),
 	}
-}
+}
--- a/ethcore/evm/src/wasm/ptr.rs
+++ b/ethcore/evm/src/wasm/ptr.rs
--- a/ethcore/evm/src/wasm/result.rs
+++ b/ethcore/evm/src/wasm/result.rs
--- a/ethcore/evm/src/wasm/runtime.rs
+++ b/ethcore/evm/src/wasm/runtime.rs
@ -20,7 +20,7 @@ use std::sync::Arc;

 use byteorder::{LittleEndian, ByteOrder};

-use evm;
+use ext;

 use parity_wasm::interpreter;
 use util::{Address, H256, U256};
@ -62,16 +62,16 @@ pub struct Runtime<'a> {
 	gas_counter: u64,
 	gas_limit: u64,
 	dynamic_top: u32,
-	ext: &'a mut evm::Ext,
+	ext: &'a mut ext::Ext,
 	memory: Arc<interpreter::MemoryInstance>,
 }

 impl<'a> Runtime<'a> {
 	/// New runtime for wasm contract with specified params
 	pub fn with_params<'b>(
-		ext: &'b mut evm::Ext,
-		memory: Arc<interpreter::MemoryInstance>, 
-		stack_space: u32, 
+		ext: &'b mut ext::Ext,
+		memory: Arc<interpreter::MemoryInstance>,
+		stack_space: u32,
 		gas_limit: u64,
 	) -> Runtime<'b> {
 		Runtime {
@ -84,7 +84,7 @@ impl<'a> Runtime<'a> {
 	}

 	/// Write to the storage from wasm memory
-	pub fn storage_write(&mut self, context: interpreter::CallerContext) 
+	pub fn storage_write(&mut self, context: interpreter::CallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let mut context = context;
@ -99,12 +99,12 @@ impl<'a> Runtime<'a> {
 	}

 	/// Read from the storage to wasm memory
-	pub fn storage_read(&mut self, context: interpreter::CallerContext) 
+	pub fn storage_read(&mut self, context: interpreter::CallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let mut context = context;
 		let val_ptr = context.value_stack.pop_as::<i32>()?;
-		let key = self.pop_h256(&mut context)?;		
+		let key = self.pop_h256(&mut context)?;

 		let val = self.ext.storage_at(&key)
 			.map_err(|_| interpreter::Error::Trap("Storage read error".to_owned()))?;
@ -115,11 +115,11 @@ impl<'a> Runtime<'a> {
 	}

 	/// Pass suicide to state runtime
-	pub fn suicide(&mut self, context: interpreter::CallerContext) 
+	pub fn suicide(&mut self, context: interpreter::CallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let mut context = context;
-		let refund_address = self.pop_address(&mut context)?;	
+		let refund_address = self.pop_address(&mut context)?;

 		self.ext.suicide(&refund_address)
 			.map_err(|_| interpreter::Error::Trap("Suicide error".to_owned()))?;
@ -128,7 +128,7 @@ impl<'a> Runtime<'a> {
 	}

 	/// Invoke create in the state runtime
-	pub fn create(&mut self, context: interpreter::CallerContext) 
+	pub fn create(&mut self, context: interpreter::CallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		//
@ -139,11 +139,11 @@ impl<'a> Runtime<'a> {
 		trace!(target: "wasm", "runtime: create contract");
 		let mut context = context;
 		let result_ptr = context.value_stack.pop_as::<i32>()? as u32;
-		trace!(target: "wasm", "    result_ptr: {:?}", result_ptr);		
+		trace!(target: "wasm", "    result_ptr: {:?}", result_ptr);
 		let code_len = context.value_stack.pop_as::<i32>()? as u32;
-		trace!(target: "wasm", "    code_len: {:?}", code_len);		
+		trace!(target: "wasm", "    code_len: {:?}", code_len);
 		let code_ptr = context.value_stack.pop_as::<i32>()? as u32;
-		trace!(target: "wasm", "    code_ptr: {:?}", code_ptr);		
+		trace!(target: "wasm", "    code_ptr: {:?}", code_ptr);
 		let endowment = self.pop_u256(&mut context)?;
 		trace!(target: "wasm", "    val: {:?}", endowment);

@ -152,15 +152,15 @@ impl<'a> Runtime<'a> {
 		let gas_left = self.gas_left()
 			.map_err(|_| interpreter::Error::Trap("Gas state error".to_owned()))?
 			.into();
-		
-		match self.ext.create(&gas_left, &endowment, &code, evm::CreateContractAddress::FromSenderAndCodeHash) {
-			evm::ContractCreateResult::Created(address, gas_left) => {
+
+		match self.ext.create(&gas_left, &endowment, &code, ext::CreateContractAddress::FromSenderAndCodeHash) {
+			ext::ContractCreateResult::Created(address, gas_left) => {
 				self.memory.set(result_ptr, &*address)?;
 				self.gas_counter = self.gas_limit - gas_left.low_u64();
 				trace!(target: "wasm", "runtime: create contract success (@{:?})", address);
 				Ok(Some(0i32.into()))
 			},
-			evm::ContractCreateResult::Failed => {
+			ext::ContractCreateResult::Failed => {
 				trace!(target: "wasm", "runtime: create contract fail");
 				Ok(Some((-1i32).into()))
 			}
@ -168,7 +168,7 @@ impl<'a> Runtime<'a> {
 	}

 	/// Allocate memory using the wasm stack params
-	pub fn malloc(&mut self, context: interpreter::CallerContext) 
+	pub fn malloc(&mut self, context: interpreter::CallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let amount = context.value_stack.pop_as::<i32>()? as u32;
@ -185,14 +185,14 @@ impl<'a> Runtime<'a> {
 	}

 	/// Report gas cost with the params passed in wasm stack
-	fn gas(&mut self, context: interpreter::CallerContext) 
-		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error> 
+	fn gas(&mut self, context: interpreter::CallerContext)
+		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let amount = context.value_stack.pop_as::<i32>()? as u64;
 		if self.charge_gas(amount) {
 			Ok(None)
 		} else {
-			Err(interpreter::Error::Trap(format!("Gas exceeds limits of {}", self.gas_limit)))			
+			Err(interpreter::Error::Trap(format!("Gas exceeds limits of {}", self.gas_limit)))
 		}
 	}

@ -204,13 +204,13 @@ impl<'a> Runtime<'a> {
 		} else {
 			self.gas_counter = prev + amount;
 			true
-		}		
+		}
 	}

 	fn h256_at(&self, ptr: WasmPtr) -> Result<H256, interpreter::Error> {
 		Ok(H256::from_slice(&ptr.slice(32, &*self.memory)
 			.map_err(|_| interpreter::Error::Trap("Memory access violation".to_owned()))?
-		))	
+		))
 	}

 	fn pop_h256(&self, context: &mut interpreter::CallerContext) -> Result<H256, interpreter::Error> {
@ -228,7 +228,7 @@ impl<'a> Runtime<'a> {
 	fn address_at(&self, ptr: WasmPtr) -> Result<Address, interpreter::Error> {
 		Ok(Address::from_slice(&ptr.slice(20, &*self.memory)
 			.map_err(|_| interpreter::Error::Trap("Memory access violation".to_owned()))?
-		))	
+		))
 	}

 	fn pop_address(&self, context: &mut interpreter::CallerContext) -> Result<Address, interpreter::Error> {
@ -237,13 +237,13 @@ impl<'a> Runtime<'a> {
 		self.address_at(ptr)
 	}

-	fn user_trap(&mut self, _context: interpreter::CallerContext) 
-		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error> 
+	fn user_trap(&mut self, _context: interpreter::CallerContext)
+		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		Err(interpreter::Error::Trap("unknown trap".to_owned()))
 	}

-	fn user_noop(&mut self, 
+	fn user_noop(&mut self,
 		_context: interpreter::CallerContext
 	) -> Result<Option<interpreter::RuntimeValue>, interpreter::Error> {
 		Ok(None)
@ -270,16 +270,16 @@ impl<'a> Runtime<'a> {
 		self.memory.set(args_ptr+40, &call_args.origin)?;
 		self.memory.set(args_ptr+60, &call_args.value)?;
 		self.memory.set(args_ptr+92, &call_args.data)?;
-		
+
 		Ok(d_ptr.into())
 	}

-	fn debug_log(&mut self, context: interpreter::CallerContext) 
-			-> Result<Option<interpreter::RuntimeValue>, interpreter::Error> 
+	fn debug_log(&mut self, context: interpreter::CallerContext)
+			-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let msg_len = context.value_stack.pop_as::<i32>()? as u32;
 		let msg_ptr = context.value_stack.pop_as::<i32>()? as u32;
-		
+
 		let msg = String::from_utf8(self.memory.get(msg_ptr, msg_len as usize)?)
 			.map_err(|_| interpreter::Error::Trap("Debug log utf-8 decoding error".to_owned()))?;

@ -299,8 +299,8 @@ impl<'a> Runtime<'a> {
 		&*self.memory
 	}

-	fn mem_copy(&self, context: interpreter::CallerContext) 
-		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error> 
+	fn mem_copy(&self, context: interpreter::CallerContext)
+		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		let len = context.value_stack.pop_as::<i32>()? as u32;
 		let dst = context.value_stack.pop_as::<i32>()? as u32;
@ -314,7 +314,7 @@ impl<'a> Runtime<'a> {
 }

 impl<'a> interpreter::UserFunctionExecutor for Runtime<'a> {
-	fn execute(&mut self, name: &str, context: interpreter::CallerContext) 
+	fn execute(&mut self, name: &str, context: interpreter::CallerContext)
 		-> Result<Option<interpreter::RuntimeValue>, interpreter::Error>
 	{
 		match name {
@ -353,4 +353,4 @@ impl<'a> interpreter::UserFunctionExecutor for Runtime<'a> {
 			}
 		}
 	}
-}
+}
--- a/ethcore/evm/src/wasm/tests.rs
+++ b/ethcore/evm/src/wasm/tests.rs
@ -1,22 +1,31 @@
-use std::path::PathBuf;
-use std::fs::File;
-use std::io::Read;
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
 use std::sync::Arc;

-use ethcore_logger::init_log;
 use super::super::tests::{FakeExt, FakeCall, FakeCallType};
 use super::WasmInterpreter;
 use evm::{self, Evm, GasLeft};
 use action_params::{ActionParams, ActionValue};
 use util::{U256, H256, Address};

-fn load_sample(name: &str) -> Vec<u8> {
-	let mut path = PathBuf::from("./res/wasm-tests/compiled");
-	path.push(name);
-	let mut file = File::open(path).expect(&format!("File {} for test to exist", name));
-	let mut data = vec![];
-	file.read_to_end(&mut data).expect(&format!("Test {} to load ok", name));
-	data
+macro_rules! load_sample {
+	($name: expr) => {
+		include_bytes!(concat!("../../../res/wasm-tests/compiled/", $name)).to_vec()
+	}
 }

 fn test_finalize(res: Result<GasLeft, evm::Error>) -> Result<U256, evm::Error> {
@ -34,9 +43,7 @@ fn wasm_interpreter() -> WasmInterpreter {
 /// Empty contract does almost nothing except producing 1 (one) local node debug log message
 #[test]
 fn empty() {
-	init_log();
-
-	let code = load_sample("empty.wasm");
+	let code = load_sample!("empty.wasm");
 	let address: Address = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6".parse().unwrap();

 	let mut params = ActionParams::default();
@ -58,9 +65,7 @@ fn empty() {
 //   logger.wasm writes all these provided fixed header fields to some arbitrary storage keys.
 #[test]
 fn logger() {
-	init_log();
-
-	let code = load_sample("logger.wasm");
+	let code = load_sample!("logger.wasm");
 	let address: Address = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6".parse().unwrap();
 	let sender: Address = "0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d".parse().unwrap();
 	let origin: Address = "0102030405060708090a0b0c0d0e0f1011121314".parse().unwrap();
@ -113,9 +118,7 @@ fn logger() {
 //      if it has any result.
 #[test]
 fn identity() {
-	init_log();
-
-	let code = load_sample("identity.wasm");
+	let code = load_sample!("identity.wasm");
 	let sender: Address = "01030507090b0d0f11131517191b1d1f21232527".parse().unwrap();

 	let mut params = ActionParams::default();
@ -143,14 +146,12 @@ fn identity() {
 }

 // Dispersion test sends byte array and expect the contract to 'disperse' the original elements with
-// their modulo 19 dopant. 
+// their modulo 19 dopant.
 // The result is always twice as long as the input.
-// This also tests byte-perfect memory allocation and in/out ptr lifecycle. 
+// This also tests byte-perfect memory allocation and in/out ptr lifecycle.
 #[test]
 fn dispersion() {
-	init_log();
-
-	let code = load_sample("dispersion.wasm");
+	let code = load_sample!("dispersion.wasm");

 	let mut params = ActionParams::default();
 	params.gas = U256::from(100_000);
@ -179,9 +180,7 @@ fn dispersion() {

 #[test]
 fn suicide_not() {
-	init_log();
-
-	let code = load_sample("suicidal.wasm");
+	let code = load_sample!("suicidal.wasm");

 	let mut params = ActionParams::default();
 	params.gas = U256::from(100_000);
@ -205,14 +204,12 @@ fn suicide_not() {
 	assert_eq!(
 		result,
 		vec![0u8]
-	);	
+	);
 }

 #[test]
 fn suicide() {
-	init_log();
-
-	let code = load_sample("suicidal.wasm");
+	let code = load_sample!("suicidal.wasm");

 	let refund: Address = "01030507090b0d0f11131517191b1d1f21232527".parse().unwrap();
 	let mut params = ActionParams::default();
@ -242,11 +239,9 @@ fn suicide() {

 #[test]
 fn create() {
-	init_log();
-
 	let mut params = ActionParams::default();
 	params.gas = U256::from(100_000);
-	params.code = Some(Arc::new(load_sample("creator.wasm")));
+	params.code = Some(Arc::new(load_sample!("creator.wasm")));
 	params.data = Some(vec![0u8, 2, 4, 8, 16, 32, 64, 128]);
 	params.value = ActionValue::transfer(1_000_000_000);

@ -276,4 +271,4 @@ fn create() {
 		}
 	));
 	assert_eq!(gas_left, U256::from(99_768));
-}
+}
--- a/ethcore/light/Cargo.toml
+++ b/ethcore/light/Cargo.toml
@ -18,6 +18,7 @@ ethcore-network = { path = "../../util/network" }
 ethcore-io = { path = "../../util/io" }
 ethcore-ipc = { path = "../../ipc/rpc", optional = true }
 ethcore-devtools = { path = "../../devtools" }
+evm = { path = "../evm" }
 rlp = { path = "../../util/rlp" }
 time = "0.1"
 smallvec = "0.4"
--- a/ethcore/light/src/client/mod.rs
+++ b/ethcore/light/src/client/mod.rs
@ -18,10 +18,10 @@

 use std::sync::{Weak, Arc};

-use ethcore::block_import_error::BlockImportError;
 use ethcore::block_status::BlockStatus;
 use ethcore::client::{ClientReport, EnvInfo};
 use ethcore::engines::Engine;
+use ethcore::error::BlockImportError;
 use ethcore::ids::BlockId;
 use ethcore::header::Header;
 use ethcore::verification::queue::{self, HeaderQueue};
--- a/ethcore/light/src/lib.rs
+++ b/ethcore/light/src/lib.rs
@ -71,6 +71,7 @@ extern crate ethcore_io as io;
 extern crate ethcore_network as network;
 extern crate ethcore_util as util;
 extern crate ethcore;
+extern crate evm;
 extern crate futures;
 extern crate itertools;
 extern crate rand;
--- a/ethcore/light/src/on_demand/request.rs
+++ b/ethcore/light/src/on_demand/request.rs
@ -21,10 +21,10 @@ use std::sync::Arc;
 use ethcore::basic_account::BasicAccount;
 use ethcore::encoded;
 use ethcore::engines::Engine;
-use ethcore::env_info::EnvInfo;
 use ethcore::receipt::Receipt;
 use ethcore::state::{self, ProvedExecution};
 use ethcore::transaction::SignedTransaction;
+use evm::env_info::EnvInfo;

 use request::{self as net_request, IncompleteRequest, CompleteRequest, Output, OutputKind, Field};

--- a/ethcore/light/src/transaction_queue.rs
+++ b/ethcore/light/src/transaction_queue.rs
@ -26,9 +26,8 @@
 use std::collections::{BTreeMap, HashMap};
 use std::collections::hash_map::Entry;

-use ethcore::error::TransactionError;
+use ethcore::error::{TransactionError, TransactionImportResult};
 use ethcore::transaction::{Condition, PendingTransaction, SignedTransaction};
-use ethcore::transaction_import::TransactionImportResult;
 use util::{Address, U256, H256, H256FastMap};

 // Knowledge of an account's current nonce.
--- a/ethcore/src/basic_types.rs
+++ b/ethcore/src/basic_types.rs
@ -16,13 +16,11 @@

 //! Ethcore basic typenames.

-use util::hash::H2048;
-
 /// Type for a 2048-bit log-bloom, as used by our blocks.
-pub type LogBloom = H2048;
+pub type LogBloom = ::log_entry::LogBloom;

 /// Constant 2048-bit datum for 0. Often used as a default.
-pub static ZERO_LOGBLOOM: LogBloom = H2048([0x00; 256]);
+pub static ZERO_LOGBLOOM: LogBloom = ::util::hash::H2048([0x00; 256]);

 #[cfg_attr(feature="dev", allow(enum_variant_names))]
 /// Semantic boolean for when a seal/signature is included.
--- a/ethcore/src/block.rs
+++ b/ethcore/src/block.rs
@ -25,7 +25,7 @@ use util::{Bytes, Address, Hashable, U256, H256, ordered_trie_root, SHA3_NULL_RL
 use util::error::{Mismatch, OutOfBounds};

 use basic_types::{LogBloom, Seal};
-use env_info::{EnvInfo, LastHashes};
+use evm::env_info::{EnvInfo, LastHashes};
 use engines::Engine;
 use error::{Error, BlockError, TransactionError};
 use factory::Factories;
@ -656,7 +656,7 @@ mod tests {
 	use tests::helpers::*;
 	use super::*;
 	use engines::Engine;
-	use env_info::LastHashes;
+	use evm::env_info::LastHashes;
 	use error::Error;
 	use header::Header;
 	use factory::Factories;
--- a/ethcore/src/builtin.rs
+++ b/ethcore/src/builtin.rs
@ -36,6 +36,12 @@ impl From<&'static str> for Error {
 	}
 }

+impl Into<::evm::Error> for Error {
+	fn into(self) -> ::evm::Error {
+		::evm::Error::BuiltIn(self.0)
+	}
+}
+
 /// Native implementation of a built-in contract.
 pub trait Impl: Send + Sync {
 	/// execute this built-in on the given input, writing to the given output.
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@ -17,7 +17,6 @@
 use std::collections::{HashSet, HashMap, BTreeMap, VecDeque};
 use std::str::FromStr;
 use std::sync::{Arc, Weak};
-use std::fmt;
 use std::sync::atomic::{AtomicUsize, AtomicBool, Ordering as AtomicOrdering};
 use std::time::{Instant};
 use time::precise_time_ns;
@ -43,8 +42,8 @@ use client::{
 };
 use encoded;
 use engines::{Engine, EpochTransition};
-use env_info::EnvInfo;
-use env_info::LastHashes;
+use evm::env_info::EnvInfo;
+use evm::env_info::LastHashes;
 use error::{ImportError, ExecutionError, CallError, BlockError, ImportResult, Error as EthcoreError};
 use evm::{Factory as EvmFactory, Schedule};
 use executive::{Executive, Executed, TransactOptions, contract_address};
@ -84,12 +83,6 @@ const MAX_TX_QUEUE_SIZE: usize = 4096;
 const MAX_QUEUE_SIZE_TO_SLEEP_ON: usize = 2;
 const MIN_HISTORY_SIZE: u64 = 8;

-impl fmt::Display for BlockChainInfo {
-	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-		write!(f, "#{}.{}", self.best_block_number, self.best_block_hash)
-	}
-}
-
 /// Report on the status of a client.
 #[derive(Default, Clone, Debug, Eq, PartialEq)]
 pub struct ClientReport {
--- a/ethcore/src/client/config.rs
+++ b/ethcore/src/client/config.rs
@ -17,14 +17,16 @@
 use std::str::FromStr;
 use std::path::Path;
 use std::fmt::{Display, Formatter, Error as FmtError};
+
+use mode::Mode as IpcMode;
+use verification::{VerifierType, QueueConfig};
+use util::{journaldb, CompactionProfile};
+
 pub use std::time::Duration;
 pub use blockchain::Config as BlockChainConfig;
 pub use trace::Config as TraceConfig;
 pub use evm::VMType;

-use verification::{VerifierType, QueueConfig};
-use util::{journaldb, CompactionProfile};
-
 /// Client state db compaction profile
 #[derive(Debug, PartialEq, Clone)]
 pub enum DatabaseCompactionProfile {
@ -98,6 +100,29 @@ impl Display for Mode {
 	}
 }

+impl Into<IpcMode> for Mode {
+	fn into(self) -> IpcMode {
+		match self {
+			Mode::Off => IpcMode::Off,
+			Mode::Dark(timeout) => IpcMode::Dark(timeout.as_secs()),
+			Mode::Passive(timeout, alarm) => IpcMode::Passive(timeout.as_secs(), alarm.as_secs()),
+			Mode::Active => IpcMode::Active,
+		}
+	}
+}
+
+impl From<IpcMode> for Mode {
+	fn from(mode: IpcMode) -> Self {
+		match mode {
+			IpcMode::Off => Mode::Off,
+			IpcMode::Dark(timeout) => Mode::Dark(Duration::from_secs(timeout)),
+			IpcMode::Passive(timeout, alarm) => Mode::Passive(Duration::from_secs(timeout), Duration::from_secs(alarm)),
+			IpcMode::Active => Mode::Active,
+		}
+	}
+}
+
+
 /// Client configuration. Includes configs for all sub-systems.
 #[derive(Debug, PartialEq, Default)]
 pub struct ClientConfig {
--- a/ethcore/src/client/evm_test_client.rs
+++ b/ethcore/src/client/evm_test_client.rs
@ -23,7 +23,7 @@ use util::kvdb::{self, KeyValueDB};
 use {state, state_db, client, executive, trace, db, spec};
 use factory::Factories;
 use evm::{self, VMType};
-use action_params::ActionParams;
+use evm::action_params::ActionParams;

 /// EVM test Error.
 #[derive(Debug)]
--- a/ethcore/src/client/mod.rs
+++ b/ethcore/src/client/mod.rs
@ -40,11 +40,9 @@ pub use types::pruning_info::PruningInfo;
 pub use types::call_analytics::CallAnalytics;

 pub use executive::{Executed, Executive, TransactOptions};
-pub use env_info::{LastHashes, EnvInfo};
+pub use evm::env_info::{LastHashes, EnvInfo};

-pub use block_import_error::BlockImportError;
-pub use transaction_import::TransactionImportResult;
-pub use transaction_import::TransactionImportError;
+pub use error::{BlockImportError, TransactionImportError, TransactionImportResult};
 pub use verification::VerifierType;

 /// IPC interfaces
--- a/ethcore/src/client/traits.rs
+++ b/ethcore/src/client/traits.rs
@ -15,24 +15,27 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

 use std::collections::BTreeMap;
-use util::{U256, Address, H256, H2048, Bytes, Itertools};
-use util::hashdb::DBValue;
-use blockchain::TreeRoute;
-use verification::queue::QueueInfo as BlockQueueInfo;
+
 use block::{OpenBlock, SealedBlock, ClosedBlock};
-use header::{BlockNumber};
-use transaction::{LocalizedTransaction, PendingTransaction, SignedTransaction};
-use transaction_import::TransactionImportResult;
-use log_entry::LocalizedLogEntry;
-use filter::Filter;
+use blockchain::TreeRoute;
+use encoded;
+use evm::env_info::LastHashes;
 use error::{ImportResult, CallError, Error as EthcoreError};
-use receipt::LocalizedReceipt;
-use trace::LocalizedTrace;
+use error::{TransactionImportResult, BlockImportError};
 use evm::{Factory as EvmFactory, Schedule};
 use executive::Executed;
-use env_info::LastHashes;
-use block_import_error::BlockImportError;
+use filter::Filter;
+use header::{BlockNumber};
 use ipc::IpcConfig;
+use log_entry::LocalizedLogEntry;
+use receipt::LocalizedReceipt;
+use trace::LocalizedTrace;
+use transaction::{LocalizedTransaction, PendingTransaction, SignedTransaction};
+use verification::queue::QueueInfo as BlockQueueInfo;
+
+use util::{U256, Address, H256, H2048, Bytes, Itertools};
+use util::hashdb::DBValue;
+
 use types::ids::*;
 use types::basic_account::BasicAccount;
 use types::trace_filter::Filter as TraceFilter;
@ -41,7 +44,6 @@ use types::blockchain_info::BlockChainInfo;
 use types::block_status::BlockStatus;
 use types::mode::Mode;
 use types::pruning_info::PruningInfo;
-use encoded;

 #[ipc(client_ident="RemoteClient")]
 /// Blockchain database client. Owns and manages a blockchain and a block queue.
--- a/ethcore/src/types/encoded.rs
+++ b/ethcore/src/types/encoded.rs
--- a/ethcore/src/engines/authority_round/mod.rs
+++ b/ethcore/src/engines/authority_round/mod.rs
@ -532,7 +532,7 @@ impl Engine for AuthorityRound {
 	fn on_new_block(
 		&self,
 		block: &mut ExecutedBlock,
-		last_hashes: Arc<::env_info::LastHashes>,
+		last_hashes: Arc<::evm::env_info::LastHashes>,
 		epoch_begin: bool,
 	) -> Result<(), Error> {
 		let parent_hash = block.fields().header.parent_hash().clone();
--- a/ethcore/src/engines/mod.rs
+++ b/ethcore/src/engines/mod.rs
@ -43,7 +43,7 @@ use account_provider::AccountProvider;
 use block::ExecutedBlock;
 use builtin::Builtin;
 use client::Client;
-use env_info::{EnvInfo, LastHashes};
+use evm::env_info::{EnvInfo, LastHashes};
 use error::Error;
 use evm::Schedule;
 use header::{Header, BlockNumber};
@ -193,7 +193,7 @@ pub trait Engine : Sync + Send {

 	/// Get the EVM schedule for the given `block_number`.
 	fn schedule(&self, block_number: BlockNumber) -> Schedule {
-		Schedule::from_params(block_number, self.params())
+		self.params().schedule(block_number)
 	}

 	/// Builtin-contracts we would like to see in the chain.
@ -394,12 +394,12 @@ pub trait Engine : Sync + Send {
 /// Common engine utilities
 pub mod common {
 	use block::ExecutedBlock;
-	use env_info::{EnvInfo, LastHashes};
+	use evm::env_info::{EnvInfo, LastHashes};
 	use error::Error;
 	use transaction::SYSTEM_ADDRESS;
 	use executive::Executive;
-	use types::executed::CallType;
-	use action_params::{ActionParams, ActionValue};
+	use evm::CallType;
+	use evm::action_params::{ActionParams, ActionValue};
 	use trace::{NoopTracer, NoopVMTracer};
 	use state::Substate;

--- a/ethcore/src/engines/tendermint/mod.rs
+++ b/ethcore/src/engines/tendermint/mod.rs
@ -901,7 +901,7 @@ mod tests {
 	#[test]
 	fn seal_submission() {
 		use ethkey::{Generator, Random};
-		use types::transaction::{Transaction, Action};
+		use transaction::{Transaction, Action};
 		use client::BlockChainClient;

 		let tap = Arc::new(AccountProvider::transient_provider());
--- a/ethcore/src/engines/validator_set/safe_contract.rs
+++ b/ethcore/src/engines/validator_set/safe_contract.rs
@ -297,7 +297,7 @@ impl ValidatorSet for ValidatorSafeContract {
 			let (old_header, state_items) = decode_first_proof(&rlp)?;
 			let old_hash = old_header.hash();

-			let env_info = ::env_info::EnvInfo {
+			let env_info = ::evm::env_info::EnvInfo {
 				number: old_header.number(),
 				author: *old_header.author(),
 				difficulty: *old_header.difficulty(),
--- a/ethcore/src/error.rs
+++ b/ethcore/src/error.rs
@ -22,13 +22,12 @@ use header::BlockNumber;
 use basic_types::LogBloom;
 use client::Error as ClientError;
 use ipc::binary::{BinaryConvertError, BinaryConvertable};
-use types::block_import_error::BlockImportError;
 use snapshot::Error as SnapshotError;
 use engines::EngineError;
 use ethkey::Error as EthkeyError;
 use account_provider::SignError as AccountsError;

-pub use types::executed::{ExecutionError, CallError};
+pub use executed::{ExecutionError, CallError};

 #[derive(Debug, PartialEq, Clone, Copy)]
 /// Errors concerning transaction processing.
@ -239,6 +238,53 @@ impl fmt::Display for ImportError {
 		f.write_fmt(format_args!("Block import error ({})", msg))
 	}
 }
+/// Error dedicated to import block function
+#[derive(Debug)]
+pub enum BlockImportError {
+	/// Import error
+	Import(ImportError),
+	/// Block error
+	Block(BlockError),
+	/// Other error
+	Other(String),
+}
+
+impl From<Error> for BlockImportError {
+	fn from(e: Error) -> Self {
+		match e {
+			Error::Block(block_error) => BlockImportError::Block(block_error),
+			Error::Import(import_error) => BlockImportError::Import(import_error),
+			_ => BlockImportError::Other(format!("other block import error: {:?}", e)),
+		}
+	}
+}
+
+/// Represents the result of importing transaction.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum TransactionImportResult {
+	/// Transaction was imported to current queue.
+	Current,
+	/// Transaction was imported to future queue.
+	Future
+}
+
+/// Api-level error for transaction import
+#[derive(Debug, Clone)]
+pub enum TransactionImportError {
+	/// Transaction error
+	Transaction(TransactionError),
+	/// Other error
+	Other(String),
+}
+
+impl From<Error> for TransactionImportError {
+	fn from(e: Error) -> Self {
+		match e {
+			Error::Transaction(transaction_error) => TransactionImportError::Transaction(transaction_error),
+			_ => TransactionImportError::Other(format!("other block import error: {:?}", e)),
+		}
+	}
+}

 #[derive(Debug)]
 /// General error type which should be capable of representing all errors in ethcore.
--- a/ethcore/src/ethereum/ethash.rs
+++ b/ethcore/src/ethereum/ethash.rs
@ -19,7 +19,7 @@ use ethash::{quick_get_difficulty, slow_get_seedhash, EthashManager};
 use util::*;
 use block::*;
 use builtin::Builtin;
-use env_info::EnvInfo;
+use evm::env_info::EnvInfo;
 use error::{BlockError, Error, TransactionError};
 use header::{Header, BlockNumber};
 use state::CleanupMode;
@ -29,7 +29,7 @@ use engines::{self, Engine};
 use evm::Schedule;
 use ethjson;
 use rlp::{self, UntrustedRlp};
-use env_info::LastHashes;
+use evm::env_info::LastHashes;

 /// Parity tries to round block.gas_limit to multiple of this constant
 pub const PARITY_GAS_LIMIT_DETERMINANT: U256 = U256([37, 0, 0, 0]);
@ -209,7 +209,8 @@ impl Engine for Arc<Ethash> {
 				block_number >= self.ethash_params.eip160_transition,
 				block_number >= self.ethash_params.eip161abc_transition,
 				block_number >= self.ethash_params.eip161d_transition);
-			schedule.apply_params(block_number, self.params());
+
+			self.params().update_schedule(block_number, &mut schedule);
 			schedule
 		}
 	}
@ -1027,7 +1028,7 @@ mod tests {
 	#[test]
 	fn rejects_transactions_below_min_gas_price() {
 		use ethkey::{Generator, Random};
-		use types::transaction::{Transaction, Action};
+		use transaction::{Transaction, Action};

 		let spec = new_homestead_test();
 		let mut ethparams = get_default_ethash_params();
--- a/ethcore/src/types/executed.rs
+++ b/ethcore/src/types/executed.rs
@ -17,58 +17,15 @@
 //! Transaction execution format module.

 use util::{Bytes, U256, Address, U512, trie};
-use rlp::*;
 use evm;
 use trace::{VMTrace, FlatTrace};
-use types::log_entry::LogEntry;
-use types::state_diff::StateDiff;
+use log_entry::LogEntry;
+use state_diff::StateDiff;
+
 use std::fmt;

-/// The type of the call-like instruction.
-#[derive(Debug, PartialEq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
-pub enum CallType {
-	/// Not a CALL.
-	None,
-	/// CALL.
-	Call,
-	/// CALLCODE.
-	CallCode,
-	/// DELEGATECALL.
-	DelegateCall,
-	/// STATICCALL
-	StaticCall,
-}
-
-impl Encodable for CallType {
-	fn rlp_append(&self, s: &mut RlpStream) {
-		let v = match *self {
-			CallType::None => 0u32,
-			CallType::Call => 1,
-			CallType::CallCode => 2,
-			CallType::DelegateCall => 3,
-			CallType::StaticCall => 4,
-		};
-		Encodable::rlp_append(&v, s);
-	}
-}
-
-impl Decodable for CallType {
-	fn decode(rlp: &UntrustedRlp) -> Result<Self, DecoderError> {
-		rlp.as_val().and_then(|v| Ok(match v {
-			0u32 => CallType::None,
-			1 => CallType::Call,
-			2 => CallType::CallCode,
-			3 => CallType::DelegateCall,
-			4 => CallType::StaticCall,
-			_ => return Err(DecoderError::Custom("Invalid value of CallType item")),
-		}))
-	}
-}
-
 /// Transaction execution receipt.
 #[derive(Debug, PartialEq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct Executed {
 	/// True if the outer call/create resulted in an exceptional exit.
 	pub exception: Option<evm::Error>,
@ -112,7 +69,6 @@ pub struct Executed {

 /// Result of executing the transaction.
 #[derive(PartialEq, Debug, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum ExecutionError {
 	/// Returned when there gas paid for transaction execution is
 	/// lower than base gas required.
@ -192,7 +148,6 @@ impl fmt::Display for ExecutionError {

 /// Result of executing the transaction.
 #[derive(PartialEq, Debug, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum CallError {
 	/// Couldn't find the transaction in the chain.
 	TransactionNotFound,
@ -230,29 +185,3 @@ impl fmt::Display for CallError {

 /// Transaction execution result.
 pub type ExecutionResult = Result<Executed, ExecutionError>;
-
-#[cfg(test)]
-mod tests {
-	use rlp::*;
-	use super::CallType;
-
-	#[test]
-	fn encode_call_type() {
-		let ct = CallType::Call;
-
-		let mut s = RlpStream::new_list(2);
-		s.append(&ct);
-		assert!(!s.is_finished(), "List shouldn't finished yet");
-		s.append(&ct);
-		assert!(s.is_finished(), "List should be finished now");
-		s.out();
-	}
-
-	#[test]
-	fn should_encode_and_decode_call_type() {
-		let original = CallType::Call;
-		let encoded = encode(&original);
-		let decoded = decode(&encoded);
-		assert_eq!(original, decoded);
-	}
-}
--- a/ethcore/src/executive.rs
+++ b/ethcore/src/executive.rs
@ -16,18 +16,18 @@

 //! Transaction Execution environment.
 use util::*;
-use action_params::{ActionParams, ActionValue};
+use evm::action_params::{ActionParams, ActionValue};
 use state::{Backend as StateBackend, State, Substate, CleanupMode};
 use engines::Engine;
-use types::executed::CallType;
-use env_info::EnvInfo;
+use evm::CallType;
+use evm::env_info::EnvInfo;
 use error::ExecutionError;
 use evm::{self, wasm, Factory, Ext, Finalize, CreateContractAddress, FinalizationResult, ReturnData, CleanDustMode};
 use externalities::*;
 use trace::{FlatTrace, Tracer, NoopTracer, ExecutiveTracer, VMTrace, VMTracer, ExecutiveVMTracer, NoopVMTracer};
 use transaction::{Action, SignedTransaction};
 use crossbeam;
-pub use types::executed::{Executed, ExecutionResult};
+pub use executed::{Executed, ExecutionResult};

 /// Roughly estimate what stack size each level of evm depth will use
 /// TODO [todr] We probably need some more sophisticated calculations here (limit on my machine 132)
@ -602,8 +602,8 @@ mod tests {
 	use super::*;
 	use util::{H256, U256, U512, Address, FromStr};
 	use util::bytes::BytesRef;
-	use action_params::{ActionParams, ActionValue};
-	use env_info::EnvInfo;
+	use evm::action_params::{ActionParams, ActionValue};
+	use evm::env_info::EnvInfo;
 	use evm::{Factory, VMType, CreateContractAddress};
 	use error::ExecutionError;
 	use state::{Substate, CleanupMode};
@ -613,7 +613,7 @@ mod tests {
 	use trace::{VMTrace, VMOperation, VMExecutedOperation, MemoryDiff, StorageDiff, VMTracer, NoopVMTracer, ExecutiveVMTracer};
 	use transaction::{Action, Transaction};

-	use types::executed::CallType;
+	use evm::CallType;

 	#[test]
 	fn test_contract_address() {
--- a/ethcore/src/externalities.rs
+++ b/ethcore/src/externalities.rs
@ -16,14 +16,14 @@

 //! Transaction Execution environment.
 use util::*;
-use action_params::{ActionParams, ActionValue};
+use evm::action_params::{ActionParams, ActionValue};
 use state::{Backend as StateBackend, State, Substate, CleanupMode};
 use engines::Engine;
-use env_info::EnvInfo;
+use evm::env_info::EnvInfo;
 use executive::*;
 use evm::{self, Schedule, Ext, ContractCreateResult, MessageCallResult, CreateContractAddress, ReturnData};
-use types::executed::CallType;
-use types::transaction::UNSIGNED_SENDER;
+use evm::CallType;
+use transaction::UNSIGNED_SENDER;
 use trace::{Tracer, VMTracer};

 /// Policy for handling output data on `RETURN` opcode.
@ -396,13 +396,13 @@ impl<'a, T: 'a, V: 'a, B: 'a, E: 'a> Ext for Externalities<'a, T, V, B, E>
 mod tests {
 	use util::*;
 	use engines::Engine;
-	use env_info::EnvInfo;
+	use evm::env_info::EnvInfo;
 	use evm::Ext;
 	use state::{State, Substate};
 	use tests::helpers::*;
 	use super::*;
 	use trace::{NoopTracer, NoopVMTracer};
-	use types::executed::CallType;
+	use evm::CallType;

 	fn get_test_origin() -> OriginInfo {
 		OriginInfo {
--- a/ethcore/src/header.rs
+++ b/ethcore/src/header.rs
@ -25,8 +25,7 @@ use std::cell::RefCell;

 pub use basic_types::Seal;

-/// Type for Block number
-pub type BlockNumber = u64;
+pub use types::BlockNumber;

 /// A block header.
 ///
--- a/ethcore/src/json_tests/executive.rs
+++ b/ethcore/src/json_tests/executive.rs
@ -15,15 +15,15 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

 use super::test_common::*;
-use action_params::ActionParams;
+use evm::action_params::ActionParams;
 use state::{Backend as StateBackend, State, Substate};
 use executive::*;
 use engines::Engine;
-use env_info::EnvInfo;
+use evm::env_info::EnvInfo;
 use evm;
 use evm::{Schedule, Ext, Finalize, VMType, ContractCreateResult, MessageCallResult, CreateContractAddress, ReturnData};
 use externalities::*;
-use types::executed::CallType;
+use evm::CallType;
 use tests::helpers::*;
 use ethjson;
 use trace::{Tracer, NoopTracer};
--- a/ethcore/src/json_tests/state.rs
+++ b/ethcore/src/json_tests/state.rs
@ -21,8 +21,8 @@ use ethereum;
 use spec::Spec;
 use ethjson;
 use ethjson::state::test::ForkSpec;
-use types::transaction::SignedTransaction;
-use env_info::EnvInfo;
+use transaction::SignedTransaction;
+use evm::env_info::EnvInfo;

 lazy_static! {
 	pub static ref FRONTIER: Spec = ethereum::new_frontier_test();
--- a/ethcore/src/lib.rs
+++ b/ethcore/src/lib.rs
@ -76,6 +76,7 @@ extern crate bloomchain;
 extern crate bn;
 extern crate byteorder;
 extern crate crossbeam;
+extern crate common_types as types;
 extern crate crypto;
 extern crate env_logger;
 extern crate ethabi;
@ -105,8 +106,6 @@ extern crate semver;
 extern crate stats;
 extern crate time;
 extern crate transient_hashmap;
-extern crate parity_wasm;
-extern crate wasm_utils;

 #[macro_use]
 extern crate log;
@ -116,6 +115,8 @@ extern crate ethcore_util as util;
 extern crate lazy_static;
 #[macro_use]
 extern crate ethcore_ipc as ipc;
+#[cfg_attr(test, macro_use)]
+extern crate evm;

 #[cfg(feature = "jit" )]
 extern crate evmjit;
@ -123,26 +124,26 @@ extern crate evmjit;
 pub extern crate ethstore;

 pub mod account_provider;
-pub mod engines;
 pub mod block;
 pub mod client;
+pub mod db;
+pub mod encoded;
+pub mod engines;
 pub mod error;
 pub mod ethereum;
+pub mod executed;
 pub mod header;
-pub mod service;
-pub mod trace;
-pub mod spec;
-pub mod views;
-pub mod pod_state;
 pub mod migrations;
 pub mod miner;
+pub mod pod_state;
+pub mod service;
 pub mod snapshot;
-pub mod action_params;
-pub mod db;
-pub mod verification;
+pub mod spec;
 pub mod state;
-pub mod env_info;
-#[macro_use] pub mod evm;
+pub mod trace;
+pub mod transaction;
+pub mod verification;
+pub mod views;

 mod cache_manager;
 mod blooms;
@ -154,7 +155,6 @@ mod builtin;
 mod executive;
 mod externalities;
 mod blockchain;
-mod types;
 mod factory;

 #[cfg(test)]
--- a/ethcore/src/miner/miner.rs
+++ b/ethcore/src/miner/miner.rs
@ -1280,7 +1280,7 @@ mod tests {
 	use ethkey::{Generator, Random};
 	use client::{BlockChainClient, TestBlockChainClient, EachBlockWith, TransactionImportResult};
 	use header::BlockNumber;
-	use types::transaction::{SignedTransaction, Transaction, PendingTransaction, Action};
+	use transaction::{SignedTransaction, Transaction, PendingTransaction, Action};
 	use spec::Spec;
 	use tests::helpers::{generate_dummy_client, generate_dummy_client_with_spec_and_accounts};

--- a/ethcore/src/snapshot/block.rs
+++ b/ethcore/src/snapshot/block.rs
@ -134,7 +134,7 @@ mod tests {
 	use views::BlockView;
 	use block::Block;
 	use super::AbridgedBlock;
-	use types::transaction::{Action, Transaction};
+	use transaction::{Action, Transaction};

 	use util::{Address, H256, U256, Bytes};

--- a/ethcore/src/spec/spec.rs
+++ b/ethcore/src/spec/spec.rs
@ -20,10 +20,10 @@ use rustc_hex::FromHex;
 use super::genesis::Genesis;
 use super::seal::Generic as GenericSeal;

-use action_params::{ActionValue, ActionParams};
+use evm::action_params::{ActionValue, ActionParams};
 use builtin::Builtin;
 use engines::{Engine, NullEngine, InstantSeal, BasicAuthority, AuthorityRound, Tendermint, DEFAULT_BLOCKHASH_CONTRACT};
-use env_info::EnvInfo;
+use evm::env_info::EnvInfo;
 use error::Error;
 use ethereum;
 use ethjson;
@ -36,7 +36,7 @@ use state_db::StateDB;
 use state::{Backend, State, Substate};
 use state::backend::Basic as BasicBackend;
 use trace::{NoopTracer, NoopVMTracer};
-use types::executed::CallType;
+use evm::CallType;
 use util::*;

 /// Parameters common to all engines.
@ -87,6 +87,31 @@ pub struct CommonParams {
 	pub wasm: bool,
 }

+impl CommonParams {
+	/// Schedule for an EVM in the post-EIP-150-era of the Ethereum main net.
+	pub fn schedule(&self, block_number: u64) -> ::evm::Schedule {
+		let mut schedule = ::evm::Schedule::new_post_eip150(usize::max_value(), true, true, true);
+		self.update_schedule(block_number, &mut schedule);
+		schedule
+	}
+
+	/// Apply common spec config parameters to the schedule.
+ 	pub fn update_schedule(&self, block_number: u64, schedule: &mut ::evm::Schedule) {
+		schedule.have_create2 = block_number >= self.eip86_transition;
+		schedule.have_revert = block_number >= self.eip140_transition;
+		schedule.have_static_call = block_number >= self.eip214_transition;
+		if block_number >= self.eip210_transition {
+			schedule.blockhash_gas = 350;
+		}
+		if block_number >= self.dust_protection_transition {
+			schedule.kill_dust = match self.remove_dust_contracts {
+				true => ::evm::CleanDustMode::WithCodeAndStorage,
+				false => ::evm::CleanDustMode::BasicOnly,
+			};
+		}
+	}
+}
+
 impl From<ethjson::spec::Params> for CommonParams {
 	fn from(p: ethjson::spec::Params) -> Self {
 		CommonParams {
--- a/ethcore/src/state/mod.rs
+++ b/ethcore/src/state/mod.rs
@ -24,7 +24,7 @@ use std::collections::hash_map::Entry;

 use receipt::Receipt;
 use engines::Engine;
-use env_info::EnvInfo;
+use evm::env_info::EnvInfo;
 use error::Error;
 use executive::{Executive, TransactOptions};
 use factory::Factories;
@ -32,7 +32,7 @@ use trace::FlatTrace;
 use pod_account::*;
 use pod_state::{self, PodState};
 use types::basic_account::BasicAccount;
-use types::executed::{Executed, ExecutionError};
+use executed::{Executed, ExecutionError};
 use types::state_diff::StateDiff;
 use transaction::SignedTransaction;
 use state_db::StateDB;
@ -982,12 +982,12 @@ mod tests {
 	use ethkey::Secret;
 	use util::{U256, H256, Address, Hashable};
 	use tests::helpers::*;
-	use env_info::EnvInfo;
+	use evm::env_info::EnvInfo;
 	use spec::*;
 	use transaction::*;
 	use ethcore_logger::init_log;
 	use trace::{FlatTrace, TraceError, trace};
-	use types::executed::CallType;
+	use evm::CallType;

 	fn secret() -> Secret {
 		"".sha3().into()
--- a/ethcore/src/tests/evm.rs
+++ b/ethcore/src/tests/evm.rs
@ -0,0 +1,76 @@
+//! Tests of EVM integration with transaction execution.
+
+use evm::action_params::{ActionParams, ActionValue};
+use evm::env_info::EnvInfo;
+use evm::{Factory, VMType};
+use evm::call_type::CallType;
+use executive::Executive;
+use state::Substate;
+use tests::helpers::*;
+use trace::{NoopVMTracer, NoopTracer};
+use transaction::SYSTEM_ADDRESS;
+
+use rustc_hex::FromHex;
+
+use util::*;
+
+evm_test!{test_blockhash_eip210: test_blockhash_eip210_jit, test_blockhash_eip210_int}
+fn test_blockhash_eip210(factory: Factory) {
+	let get_prev_hash_code = Arc::new("600143034060205260206020f3".from_hex().unwrap()); // this returns previous block hash
+	let get_prev_hash_code_hash = get_prev_hash_code.sha3();
+	// This is same as DEFAULT_BLOCKHASH_CONTRACT except for metropolis transition block check removed.
+	let test_blockhash_contract = "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";
+	let blockhash_contract_code = Arc::new(test_blockhash_contract.from_hex().unwrap());
+	let blockhash_contract_code_hash = blockhash_contract_code.sha3();
+	let engine = TestEngine::new_metropolis();
+	let mut env_info = EnvInfo::default();
+
+	// populate state with 256 last hashes
+	let mut state = get_temp_state_with_factory(factory);
+	let contract_address: Address = 0xf0.into();
+	state.init_code(&contract_address, (*blockhash_contract_code).clone()).unwrap();
+	for i in 1 .. 257 {
+		env_info.number = i.into();
+		let params = ActionParams {
+			code_address: contract_address.clone(),
+			address: contract_address,
+			sender: SYSTEM_ADDRESS.clone(),
+			origin: SYSTEM_ADDRESS.clone(),
+			gas: 100000.into(),
+			gas_price: 0.into(),
+			value: ActionValue::Transfer(0.into()),
+			code: Some(blockhash_contract_code.clone()),
+			code_hash: Some(blockhash_contract_code_hash),
+			data: Some(H256::from(i - 1).to_vec()),
+			call_type: CallType::Call,
+		};
+		let mut ex = Executive::new(&mut state, &env_info, &engine);
+		let mut substate = Substate::new();
+		let mut output = [];
+		if let Err(e) = ex.call(params, &mut substate, BytesRef::Fixed(&mut output), &mut NoopTracer, &mut NoopVMTracer) {
+			panic!("Encountered error on updating last hashes: {}", e);
+		}
+	}
+
+	env_info.number = 256;
+	let params = ActionParams {
+		code_address: Address::new(),
+		address: Address::new(),
+		sender: Address::new(),
+		origin: Address::new(),
+		gas: 100000.into(),
+		gas_price: 0.into(),
+		value: ActionValue::Transfer(0.into()),
+		code: Some(get_prev_hash_code),
+		code_hash: Some(get_prev_hash_code_hash),
+		data: None,
+		call_type: CallType::Call,
+	};
+	let mut ex = Executive::new(&mut state, &env_info, &engine);
+	let mut substate = Substate::new();
+	let mut output = H256::new();
+	if let Err(e) = ex.call(params, &mut substate, BytesRef::Fixed(&mut output), &mut NoopTracer, &mut NoopVMTracer) {
+		panic!("Encountered error on getting last hash: {}", e);
+	}
+	assert_eq!(output, 255.into());
+}
--- a/ethcore/src/tests/mod.rs
+++ b/ethcore/src/tests/mod.rs
@ -16,5 +16,8 @@

 pub mod helpers;
 mod client;
+mod evm;
+
 #[cfg(feature="ipc")]
 mod rpc;
+
--- a/ethcore/src/trace/db.rs
+++ b/ethcore/src/trace/db.rs
@ -410,7 +410,7 @@ mod tests {
 	use trace::{Filter, LocalizedTrace, AddressesFilter, TraceError};
 	use trace::trace::{Call, Action, Res};
 	use trace::flat::{FlatTrace, FlatBlockTraces, FlatTransactionTraces};
-	use types::executed::CallType;
+	use evm::CallType;

 	struct NoopExtras;

--- a/ethcore/src/trace/executive_tracer.rs
+++ b/ethcore/src/trace/executive_tracer.rs
@ -17,7 +17,7 @@
 //! Simple executive tracer.

 use util::{Bytes, Address, U256};
-use action_params::ActionParams;
+use evm::action_params::ActionParams;
 use trace::trace::{Call, Create, Action, Res, CreateResult, CallResult, VMTrace, VMOperation, VMExecutedOperation, MemoryDiff, StorageDiff, Suicide};
 use trace::{Tracer, VMTracer, FlatTrace, TraceError};

--- a/ethcore/src/trace/mod.rs
+++ b/ethcore/src/trace/mod.rs
@ -22,21 +22,24 @@ mod db;
 mod executive_tracer;
 mod import;
 mod noop_tracer;
+mod types;

-pub use types::trace_types::{filter, flat, localized, trace};
-pub use types::trace_types::error::Error as TraceError;
 pub use self::config::Config;
 pub use self::db::TraceDB;
-pub use types::trace_types::trace::{VMTrace, VMOperation, VMExecutedOperation, MemoryDiff, StorageDiff};
-pub use types::trace_types::flat::{FlatTrace, FlatTransactionTraces, FlatBlockTraces};
 pub use self::noop_tracer::{NoopTracer, NoopVMTracer};
 pub use self::executive_tracer::{ExecutiveTracer, ExecutiveVMTracer};
-pub use types::trace_types::filter::{Filter, AddressesFilter};
 pub use self::import::ImportRequest;
 pub use self::localized::LocalizedTrace;
+
+pub use self::types::{filter, flat, localized, trace};
+pub use self::types::error::Error as TraceError;
+pub use self::types::trace::{VMTrace, VMOperation, VMExecutedOperation, MemoryDiff, StorageDiff};
+pub use self::types::flat::{FlatTrace, FlatTransactionTraces, FlatBlockTraces};
+pub use self::types::filter::{Filter, AddressesFilter};
+
 use util::{Bytes, Address, U256, H256, DBTransaction};
 use self::trace::{Call, Create};
-use action_params::ActionParams;
+use evm::action_params::ActionParams;
 use header::BlockNumber;

 /// This trait is used by executive to build traces.
--- a/ethcore/src/trace/noop_tracer.rs
+++ b/ethcore/src/trace/noop_tracer.rs
@ -17,7 +17,7 @@
 //! Nonoperative tracer.

 use util::{Bytes, Address, U256};
-use action_params::ActionParams;
+use evm::action_params::ActionParams;
 use trace::{Tracer, VMTracer, FlatTrace, TraceError};
 use trace::trace::{Call, Create, VMTrace};

--- a/ethcore/src/types/trace_types/error.rs
+++ b/ethcore/src/types/trace_types/error.rs
@ -22,7 +22,6 @@ use evm::Error as EvmError;

 /// Trace evm errors.
 #[derive(Debug, PartialEq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum Error {
 	/// `OutOfGas` is returned when transaction execution runs out of gas.
 	OutOfGas,
@ -34,7 +33,7 @@ pub enum Error {
 	/// `StackUnderflow` when there is not enough stack elements to execute instruction
 	StackUnderflow,
 	/// When execution would exceed defined Stack Limit
-	OutOfStack,	
+	OutOfStack,
 	/// When builtin contract failed on input data
 	BuiltIn,
 	/// Returned on evm internal error. Should never be ignored during development.
--- a/ethcore/src/types/trace_types/filter.rs
+++ b/ethcore/src/types/trace_types/filter.rs
@ -23,13 +23,12 @@ use util::sha3::Hashable;
 use util::bloom::Bloomable;
 use basic_types::LogBloom;
 use trace::flat::FlatTrace;
-use types::trace_types::trace::{Action, Res};
+use super::trace::{Action, Res};

 /// Addresses filter.
 ///
 /// Used to create bloom possibilities and match filters.
 #[derive(Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct AddressesFilter {
 	list: Vec<Address>
 }
@ -76,7 +75,6 @@ impl AddressesFilter {
 }

 #[derive(Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 /// Traces filter.
 pub struct Filter {
 	/// Block range.
@ -143,7 +141,7 @@ mod tests {
 	use trace::trace::{Action, Call, Res, Create, CreateResult, Suicide};
 	use trace::flat::FlatTrace;
 	use trace::{Filter, AddressesFilter, TraceError};
-	use types::executed::CallType;
+	use evm::CallType;

 	#[test]
 	fn empty_trace_filter_bloom_possibilities() {
--- a/ethcore/src/types/trace_types/flat.rs
+++ b/ethcore/src/types/trace_types/flat.rs
@ -26,7 +26,6 @@ use super::trace::{Action, Res};
 ///
 /// Parent and children indexes refer to positions in this vector.
 #[derive(Debug, PartialEq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct FlatTrace {
 	/// Type of action performed by a transaction.
 	pub action: Action,
@ -164,7 +163,7 @@ mod tests {
 	use rlp::*;
 	use super::{FlatBlockTraces, FlatTransactionTraces, FlatTrace};
 	use trace::trace::{Action, Res, CallResult, Call, Suicide};
-	use types::executed::CallType;
+	use evm::CallType;

 	#[test]
 	fn encode_flat_transaction_traces() {
--- a/ethcore/src/types/trace_types/localized.rs
+++ b/ethcore/src/types/trace_types/localized.rs
@ -22,7 +22,6 @@ use header::BlockNumber;

 /// Localized trace.
 #[derive(Debug, PartialEq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct LocalizedTrace {
 	/// Type of action performed by a transaction.
 	pub action: Action,
--- a/ethcore/src/types/trace_types/mod.rs
+++ b/ethcore/src/types/trace_types/mod.rs
--- a/ethcore/src/types/trace_types/trace.rs
+++ b/ethcore/src/types/trace_types/trace.rs
@ -21,9 +21,9 @@ use util::sha3::Hashable;
 use util::bloom::Bloomable;
 use rlp::*;

-use action_params::ActionParams;
+use evm::action_params::ActionParams;
 use basic_types::LogBloom;
-use types::executed::CallType;
+use evm::CallType;
 use super::error::Error;

 /// `Call` result.
--- a/ethcore/src/types/transaction.rs
+++ b/ethcore/src/types/transaction.rs
@ -32,9 +32,8 @@ pub const UNSIGNED_SENDER: Address = ::util::H160([0xff; 20]);
 /// System sender address for internal state updates.
 pub const SYSTEM_ADDRESS: Address = ::util::H160([0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,0xff, 0xff, 0xff, 0xff,0xff, 0xff, 0xff, 0xff,0xff, 0xff, 0xff, 0xfe]);

-#[derive(Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 /// Transaction action type.
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub enum Action {
 	/// Create creates new contract.
 	Create,
@ -59,7 +58,6 @@ impl Decodable for Action {

 /// Transaction activation condition.
 #[derive(Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum Condition {
 	/// Valid at this block number or later.
 	Number(BlockNumber),
@ -70,7 +68,6 @@ pub enum Condition {
 /// A set of information describing an externally-originating message call
 /// or contract creation operation.
 #[derive(Default, Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct Transaction {
 	/// Nonce.
 	pub nonce: U256,
@ -241,9 +238,8 @@ impl Transaction {
 	}
 }

-/// Signed transaction information.
+/// Signed transaction information without verified signature.
 #[derive(Debug, Clone, Eq, PartialEq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct UnverifiedTransaction {
 	/// Plain Transaction.
 	unsigned: Transaction,
@ -470,7 +466,6 @@ impl SignedTransaction {

 /// Signed Transaction that is a part of canon blockchain.
 #[derive(Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct LocalizedTransaction {
 	/// Signed part.
 	pub signed: UnverifiedTransaction,
@ -511,7 +506,6 @@ impl Deref for LocalizedTransaction {

 /// Queued transaction with additional information.
 #[derive(Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct PendingTransaction {
 	/// Signed transaction data.
 	pub transaction: SignedTransaction,
@ -544,91 +538,97 @@ impl From<SignedTransaction> for PendingTransaction {
 	}
 }

-#[test]
-fn sender_test() {
-	let t: UnverifiedTransaction = decode(&::rustc_hex::FromHex::from_hex("f85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804").unwrap());
-	assert_eq!(t.data, b"");
-	assert_eq!(t.gas, U256::from(0x5208u64));
-	assert_eq!(t.gas_price, U256::from(0x01u64));
-	assert_eq!(t.nonce, U256::from(0x00u64));
-	if let Action::Call(ref to) = t.action {
-		assert_eq!(*to, "095e7baea6a6c7c4c2dfeb977efac326af552d87".into());
-	} else { panic!(); }
-	assert_eq!(t.value, U256::from(0x0au64));
-	assert_eq!(public_to_address(&t.recover_public().unwrap()), "0f65fe9276bc9a24ae7083ae28e2660ef72df99e".into());
-	assert_eq!(t.network_id(), None);
-}
-
-#[test]
-fn signing() {
-	use ethkey::{Random, Generator};
-
-	let key = Random.generate().unwrap();
-	let t = Transaction {
-		action: Action::Create,
-		nonce: U256::from(42),
-		gas_price: U256::from(3000),
-		gas: U256::from(50_000),
-		value: U256::from(1),
-		data: b"Hello!".to_vec()
-	}.sign(&key.secret(), None);
-	assert_eq!(Address::from(key.public().sha3()), t.sender());
-	assert_eq!(t.network_id(), None);
-}
-
-#[test]
-fn fake_signing() {
-	let t = Transaction {
-		action: Action::Create,
-		nonce: U256::from(42),
-		gas_price: U256::from(3000),
-		gas: U256::from(50_000),
-		value: U256::from(1),
-		data: b"Hello!".to_vec()
-	}.fake_sign(Address::from(0x69));
-	assert_eq!(Address::from(0x69), t.sender());
-	assert_eq!(t.network_id(), None);
-
-	let t = t.clone();
-	assert_eq!(Address::from(0x69), t.sender());
-	assert_eq!(t.network_id(), None);
-}
-
-#[test]
-fn should_recover_from_network_specific_signing() {
-	use ethkey::{Random, Generator};
-	let key = Random.generate().unwrap();
-	let t = Transaction {
-		action: Action::Create,
-		nonce: U256::from(42),
-		gas_price: U256::from(3000),
-		gas: U256::from(50_000),
-		value: U256::from(1),
-		data: b"Hello!".to_vec()
-	}.sign(&key.secret(), Some(69));
-	assert_eq!(Address::from(key.public().sha3()), t.sender());
-	assert_eq!(t.network_id(), Some(69));
-}
-
-#[test]
-fn should_agree_with_vitalik() {
-	use rustc_hex::FromHex;
-
-	let test_vector = |tx_data: &str, address: &'static str| {
-		let signed = decode(&FromHex::from_hex(tx_data).unwrap());
-		let signed = SignedTransaction::new(signed).unwrap();
-		assert_eq!(signed.sender(), address.into());
-		flushln!("networkid: {:?}", signed.network_id());
-	};
-
-	test_vector("f864808504a817c800825208943535353535353535353535353535353535353535808025a0044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116da0044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116d", "0xf0f6f18bca1b28cd68e4357452947e021241e9ce");
-	test_vector("f864018504a817c80182a410943535353535353535353535353535353535353535018025a0489efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bcaa0489efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6", "0x23ef145a395ea3fa3deb533b8a9e1b4c6c25d112");
-	test_vector("f864028504a817c80282f618943535353535353535353535353535353535353535088025a02d7c5bef027816a800da1736444fb58a807ef4c9603b7848673f7e3a68eb14a5a02d7c5bef027816a800da1736444fb58a807ef4c9603b7848673f7e3a68eb14a5", "0x2e485e0c23b4c3c542628a5f672eeab0ad4888be");
-	test_vector("f865038504a817c803830148209435353535353535353535353535353535353535351b8025a02a80e1ef1d7842f27f2e6be0972bb708b9a135c38860dbe73c27c3486c34f4e0a02a80e1ef1d7842f27f2e6be0972bb708b9a135c38860dbe73c27c3486c34f4de", "0x82a88539669a3fd524d669e858935de5e5410cf0");
-	test_vector("f865048504a817c80483019a28943535353535353535353535353535353535353535408025a013600b294191fc92924bb3ce4b969c1e7e2bab8f4c93c3fc6d0a51733df3c063a013600b294191fc92924bb3ce4b969c1e7e2bab8f4c93c3fc6d0a51733df3c060", "0xf9358f2538fd5ccfeb848b64a96b743fcc930554");
-	test_vector("f865058504a817c8058301ec309435353535353535353535353535353535353535357d8025a04eebf77a833b30520287ddd9478ff51abbdffa30aa90a8d655dba0e8a79ce0c1a04eebf77a833b30520287ddd9478ff51abbdffa30aa90a8d655dba0e8a79ce0c1", "0xa8f7aba377317440bc5b26198a363ad22af1f3a4");
-	test_vector("f866068504a817c80683023e3894353535353535353535353535353535353535353581d88025a06455bf8ea6e7463a1046a0b52804526e119b4bf5136279614e0b1e8e296a4e2fa06455bf8ea6e7463a1046a0b52804526e119b4bf5136279614e0b1e8e296a4e2d", "0xf1f571dc362a0e5b2696b8e775f8491d3e50de35");
-	test_vector("f867078504a817c807830290409435353535353535353535353535353535353535358201578025a052f1a9b320cab38e5da8a8f97989383aab0a49165fc91c737310e4f7e9821021a052f1a9b320cab38e5da8a8f97989383aab0a49165fc91c737310e4f7e9821021", "0xd37922162ab7cea97c97a87551ed02c9a38b7332");
-	test_vector("f867088504a817c8088302e2489435353535353535353535353535353535353535358202008025a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c12a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c10", "0x9bddad43f934d313c2b79ca28a432dd2b7281029");
-	test_vector("f867098504a817c809830334509435353535353535353535353535353535353535358202d98025a052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afba052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afb", "0x3c24d7329e92f84f08556ceb6df1cdb0104ca49f");
+#[cfg(test)]
+mod tests {
+	use super::*;
+	use util::{Hashable, U256};
+
+	#[test]
+	fn sender_test() {
+		let t: UnverifiedTransaction = decode(&::rustc_hex::FromHex::from_hex("f85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804").unwrap());
+		assert_eq!(t.data, b"");
+		assert_eq!(t.gas, U256::from(0x5208u64));
+		assert_eq!(t.gas_price, U256::from(0x01u64));
+		assert_eq!(t.nonce, U256::from(0x00u64));
+		if let Action::Call(ref to) = t.action {
+			assert_eq!(*to, "095e7baea6a6c7c4c2dfeb977efac326af552d87".into());
+		} else { panic!(); }
+		assert_eq!(t.value, U256::from(0x0au64));
+		assert_eq!(public_to_address(&t.recover_public().unwrap()), "0f65fe9276bc9a24ae7083ae28e2660ef72df99e".into());
+		assert_eq!(t.network_id(), None);
+	}
+
+	#[test]
+	fn signing() {
+		use ethkey::{Random, Generator};
+
+		let key = Random.generate().unwrap();
+		let t = Transaction {
+			action: Action::Create,
+			nonce: U256::from(42),
+			gas_price: U256::from(3000),
+			gas: U256::from(50_000),
+			value: U256::from(1),
+			data: b"Hello!".to_vec()
+		}.sign(&key.secret(), None);
+		assert_eq!(Address::from(key.public().sha3()), t.sender());
+		assert_eq!(t.network_id(), None);
+	}
+
+	#[test]
+	fn fake_signing() {
+		let t = Transaction {
+			action: Action::Create,
+			nonce: U256::from(42),
+			gas_price: U256::from(3000),
+			gas: U256::from(50_000),
+			value: U256::from(1),
+			data: b"Hello!".to_vec()
+		}.fake_sign(Address::from(0x69));
+		assert_eq!(Address::from(0x69), t.sender());
+		assert_eq!(t.network_id(), None);
+
+		let t = t.clone();
+		assert_eq!(Address::from(0x69), t.sender());
+		assert_eq!(t.network_id(), None);
+	}
+
+	#[test]
+	fn should_recover_from_network_specific_signing() {
+		use ethkey::{Random, Generator};
+		let key = Random.generate().unwrap();
+		let t = Transaction {
+			action: Action::Create,
+			nonce: U256::from(42),
+			gas_price: U256::from(3000),
+			gas: U256::from(50_000),
+			value: U256::from(1),
+			data: b"Hello!".to_vec()
+		}.sign(&key.secret(), Some(69));
+		assert_eq!(Address::from(key.public().sha3()), t.sender());
+		assert_eq!(t.network_id(), Some(69));
+	}
+
+	#[test]
+	fn should_agree_with_vitalik() {
+		use rustc_hex::FromHex;
+
+		let test_vector = |tx_data: &str, address: &'static str| {
+			let signed = decode(&FromHex::from_hex(tx_data).unwrap());
+			let signed = SignedTransaction::new(signed).unwrap();
+			assert_eq!(signed.sender(), address.into());
+			flushln!("networkid: {:?}", signed.network_id());
+		};
+
+		test_vector("f864808504a817c800825208943535353535353535353535353535353535353535808025a0044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116da0044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116d", "0xf0f6f18bca1b28cd68e4357452947e021241e9ce");
+		test_vector("f864018504a817c80182a410943535353535353535353535353535353535353535018025a0489efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bcaa0489efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6", "0x23ef145a395ea3fa3deb533b8a9e1b4c6c25d112");
+		test_vector("f864028504a817c80282f618943535353535353535353535353535353535353535088025a02d7c5bef027816a800da1736444fb58a807ef4c9603b7848673f7e3a68eb14a5a02d7c5bef027816a800da1736444fb58a807ef4c9603b7848673f7e3a68eb14a5", "0x2e485e0c23b4c3c542628a5f672eeab0ad4888be");
+		test_vector("f865038504a817c803830148209435353535353535353535353535353535353535351b8025a02a80e1ef1d7842f27f2e6be0972bb708b9a135c38860dbe73c27c3486c34f4e0a02a80e1ef1d7842f27f2e6be0972bb708b9a135c38860dbe73c27c3486c34f4de", "0x82a88539669a3fd524d669e858935de5e5410cf0");
+		test_vector("f865048504a817c80483019a28943535353535353535353535353535353535353535408025a013600b294191fc92924bb3ce4b969c1e7e2bab8f4c93c3fc6d0a51733df3c063a013600b294191fc92924bb3ce4b969c1e7e2bab8f4c93c3fc6d0a51733df3c060", "0xf9358f2538fd5ccfeb848b64a96b743fcc930554");
+		test_vector("f865058504a817c8058301ec309435353535353535353535353535353535353535357d8025a04eebf77a833b30520287ddd9478ff51abbdffa30aa90a8d655dba0e8a79ce0c1a04eebf77a833b30520287ddd9478ff51abbdffa30aa90a8d655dba0e8a79ce0c1", "0xa8f7aba377317440bc5b26198a363ad22af1f3a4");
+		test_vector("f866068504a817c80683023e3894353535353535353535353535353535353535353581d88025a06455bf8ea6e7463a1046a0b52804526e119b4bf5136279614e0b1e8e296a4e2fa06455bf8ea6e7463a1046a0b52804526e119b4bf5136279614e0b1e8e296a4e2d", "0xf1f571dc362a0e5b2696b8e775f8491d3e50de35");
+		test_vector("f867078504a817c807830290409435353535353535353535353535353535353535358201578025a052f1a9b320cab38e5da8a8f97989383aab0a49165fc91c737310e4f7e9821021a052f1a9b320cab38e5da8a8f97989383aab0a49165fc91c737310e4f7e9821021", "0xd37922162ab7cea97c97a87551ed02c9a38b7332");
+		test_vector("f867088504a817c8088302e2489435353535353535353535353535353535353535358202008025a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c12a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c10", "0x9bddad43f934d313c2b79ca28a432dd2b7281029");
+		test_vector("f867098504a817c809830334509435353535353535353535353535353535353535358202d98025a052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afba052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afb", "0x3c24d7329e92f84f08556ceb6df1cdb0104ca49f");
+	}
 }
--- a/ethcore/src/types/block_import_error.rs
+++ b/ethcore/src/types/block_import_error.rs
@ -1,42 +0,0 @@
-// Copyright 2015-2017 Parity Technologies (UK) Ltd.
-// This file is part of Parity.
-
-// Parity is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Parity is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
-
-//! Block import error related types
-
-use error::{ImportError, BlockError, Error};
-use std::convert::From;
-
-/// Error dedicated to import block function
-#[derive(Debug)]
-#[cfg_attr(feature = "ipc", binary)]
-pub enum BlockImportError {
-	/// Import error
-	Import(ImportError),
-	/// Block error
-	Block(BlockError),
-	/// Other error
-	Other(String),
-}
-
-impl From<Error> for BlockImportError {
-	fn from(e: Error) -> Self {
-		match e {
-			Error::Block(block_error) => BlockImportError::Block(block_error),
-			Error::Import(import_error) => BlockImportError::Import(import_error),
-			_ => BlockImportError::Other(format!("other block import error: {:?}", e)),
-		}
-	}
-}
--- a/ethcore/src/types/block_status.rs
+++ b/ethcore/src/types/block_status.rs
@ -1,42 +0,0 @@
-// Copyright 2015-2017 Parity Technologies (UK) Ltd.
-// This file is part of Parity.
-
-// Parity is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Parity is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
-
-//! Block status description module
-use verification::queue::Status as QueueStatus;
-
-/// General block status
-#[derive(Debug, Eq, PartialEq)]
-#[cfg_attr(feature = "ipc", binary)]
-pub enum BlockStatus {
-	/// Part of the blockchain.
-	InChain,
-	/// Queued for import.
-	Queued,
-	/// Known as bad.
-	Bad,
-	/// Unknown.
-	Unknown,
-}
-
-impl From<QueueStatus> for BlockStatus {
-	fn from(status: QueueStatus) -> Self {
-		match status {
-			QueueStatus::Queued => BlockStatus::Queued,
-			QueueStatus::Bad => BlockStatus::Bad,
-			QueueStatus::Unknown => BlockStatus::Unknown,
-		}
-	}
-}
--- a/ethcore/src/types/transaction_import.rs
+++ b/ethcore/src/types/transaction_import.rs
@ -1,50 +0,0 @@
-// Copyright 2015-2017 Parity Technologies (UK) Ltd.
-// This file is part of Parity.
-
-// Parity is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Parity is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
-
-//! Transaction import result related types
-
-use ipc::binary::{BinaryConvertError, BinaryConvertable};
-use error::{TransactionError, Error};
-
-#[derive(Debug, Clone, Copy, PartialEq)]
-/// Represents the result of importing transaction.
-pub enum TransactionImportResult {
-	/// Transaction was imported to current queue.
-	Current,
-	/// Transaction was imported to future queue.
-	Future
-}
-
-binary_fixed_size!(TransactionImportResult);
-
-/// Api-level error for transaction import
-#[derive(Debug, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
-pub enum TransactionImportError {
-	/// Transaction error
-	Transaction(TransactionError),
-	/// Other error
-	Other(String),
-}
-
-impl From<Error> for TransactionImportError {
-	fn from(e: Error) -> Self {
-		match e {
-			Error::Transaction(transaction_error) => TransactionImportError::Transaction(transaction_error),
-			_ => TransactionImportError::Other(format!("other block import error: {:?}", e)),
-		}
-	}
-}
--- a/ethcore/src/verification/queue/mod.rs
+++ b/ethcore/src/verification/queue/mod.rs
@ -115,6 +115,17 @@ pub enum Status {
 	Unknown,
 }

+impl Into<::block_status::BlockStatus> for Status {
+	fn into(self) -> ::block_status::BlockStatus {
+		use ::block_status::BlockStatus;
+		match self {
+			Status::Queued => BlockStatus::Queued,
+			Status::Bad => BlockStatus::Bad,
+			Status::Unknown => BlockStatus::Unknown,
+		}
+	}
+}
+
 // the internal queue sizes.
 struct Sizes {
 	unverified: AtomicUsize,
--- a/ethcore/src/verification/verification.rs
+++ b/ethcore/src/verification/verification.rs
@ -585,7 +585,7 @@ mod tests {
 	#[test]
 	fn dust_protection() {
 		use ethkey::{Generator, Random};
-		use types::transaction::{Transaction, Action};
+		use transaction::{Transaction, Action};
 		use engines::NullEngine;

 		let mut params = CommonParams::default();
--- a/ethcore/types/Cargo.toml
+++ b/ethcore/types/Cargo.toml
@ -0,0 +1,13 @@
+[package]
+name = "common-types"
+description = "Common types used throughout the codebase"
+version = "0.1.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+
+[dependencies]
+rlp = { path = "../../util/rlp" }
+ethcore-util = { path = "../../util" }
+ethjson = { path = "../../json" }
+
+[dev-dependencies]
+rustc-hex= "1.0"
--- a/ethcore/types/src/account_diff.rs
+++ b/ethcore/types/src/account_diff.rs
@ -20,12 +20,10 @@ use std::cmp::*;
 use std::fmt;
 use std::collections::BTreeMap;
 use util::{U256, H256, Bytes};
-use ipc::binary::BinaryConvertable;

 #[derive(Debug, PartialEq, Eq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 /// Diff type for specifying a change (or not).
-pub enum Diff<T> where T: Eq + BinaryConvertable {
+pub enum Diff<T> where T: Eq {
 	/// Both sides are the same.
 	Same,
 	/// Left (pre, source) side doesn't include value, right side (post, destination) does.
@ -36,7 +34,7 @@ pub enum Diff<T> where T: Eq + BinaryConvertable {
 	Died(T),
 }

-impl<T> Diff<T> where T: Eq + BinaryConvertable {
+impl<T> Diff<T> where T: Eq {
 	/// Construct new object with given `pre` and `post`.
 	pub fn new(pre: T, post: T) -> Self { if pre == post { Diff::Same } else { Diff::Changed(pre, post) } }

--- a/ethcore/types/src/basic_account.rs
+++ b/ethcore/types/src/basic_account.rs
--- a/ethcore/types/src/block_status.rs
+++ b/ethcore/types/src/block_status.rs
@ -14,12 +14,15 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

-//! Types used in the public api
-
-#![cfg_attr(feature = "ipc", allow(dead_code, unused_assignments, unused_variables))] // codegen issues
-
-#[cfg(feature = "ipc")]
-include!(concat!(env!("OUT_DIR"), "/mod.rs.in"));
-
-#[cfg(not(feature = "ipc"))]
-include!("mod.rs.in");
+/// General block status
+#[derive(Debug, Eq, PartialEq)]
+pub enum BlockStatus {
+	/// Part of the blockchain.
+	InChain,
+	/// Queued for import.
+	Queued,
+	/// Known as bad.
+	Bad,
+	/// Unknown.
+	Unknown,
+}
--- a/ethcore/types/src/blockchain_info.rs
+++ b/ethcore/types/src/blockchain_info.rs
@ -16,13 +16,14 @@

 //! Blockhain info type definition

+use std::fmt;
+
 use util::{U256, H256};
-use header::BlockNumber;
-use types::security_level::SecurityLevel;
+use security_level::SecurityLevel;
+use {BlockNumber};

 /// Information about the blockchain gathered together.
 #[derive(Clone, Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct BlockChainInfo {
 	/// Blockchain difficulty.
 	pub total_difficulty: U256,
@ -57,3 +58,9 @@ impl BlockChainInfo {
 		}
 	}
 }
+
+impl fmt::Display for BlockChainInfo {
+	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+		write!(f, "#{}.{}", self.best_block_number, self.best_block_hash)
+	}
+}
--- a/ethcore/types/src/call_analytics.rs
+++ b/ethcore/types/src/call_analytics.rs
@ -18,7 +18,6 @@

 /// Options concerning what analytics we run on the call.
 #[derive(Eq, PartialEq, Default, Clone, Copy, Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct CallAnalytics {
 	/// Make a transaction trace.
 	pub transaction_tracing: bool,
--- a/ethcore/types/src/filter.rs
+++ b/ethcore/types/src/filter.rs
@ -18,12 +18,11 @@

 use util::{Address, H256, Hashable, H2048};
 use util::bloom::Bloomable;
-use client::BlockId;
+use ids::BlockId;
 use log_entry::LogEntry;

 /// Blockchain Filter.
 #[derive(Debug, PartialEq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct Filter {
 	/// Blockchain will be searched from this block.
 	pub from_block: BlockId,
@ -114,7 +113,7 @@ impl Filter {
 #[cfg(test)]
 mod tests {
 	use filter::Filter;
-	use client::BlockId;
+	use ids::BlockId;
 	use log_entry::LogEntry;

 	#[test]
--- a/ethcore/types/src/ids.rs
+++ b/ethcore/types/src/ids.rs
@ -17,11 +17,10 @@
 //! Unique identifiers.

 use util::hash::H256;
-use header::BlockNumber;
+use {BlockNumber};

 /// Uniquely identifies block.
 #[derive(Debug, PartialEq, Copy, Clone, Hash, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum BlockId {
 	/// Block's sha3.
 	/// Querying by hash is always faster.
@ -38,7 +37,6 @@ pub enum BlockId {

 /// Uniquely identifies transaction.
 #[derive(Debug, PartialEq, Clone, Hash, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum TransactionId {
 	/// Transaction's sha3.
 	Hash(H256),
@ -48,7 +46,6 @@ pub enum TransactionId {
 }

 /// Uniquely identifies Trace.
-#[cfg_attr(feature = "ipc", binary)]
 pub struct TraceId {
 	/// Transaction
 	pub transaction: TransactionId,
@ -58,7 +55,6 @@ pub struct TraceId {

 /// Uniquely identifies Uncle.
 #[derive(Debug, PartialEq, Eq, Copy, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct UncleId {
 	/// Block id.
 	pub block: BlockId,
--- a/ethcore/src/types/mod.rs.in
+++ b/ethcore/src/types/mod.rs.in
@ -14,27 +14,33 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

-pub mod transaction;
-pub mod ids;
-pub mod receipt;
-pub mod tree_route;
-pub mod blockchain_info;
-pub mod log_entry;
-pub mod trace_types;
-pub mod executed;
-pub mod block_status;
+//! Types used in the public API
+
+extern crate ethcore_util as util;
+extern crate ethjson;
+extern crate rlp;
+
+#[cfg(test)]
+extern crate rustc_hex;
+
 pub mod account_diff;
-pub mod state_diff;
-pub mod verification_queue_info;
-pub mod filter;
-pub mod trace_filter;
+pub mod basic_account;
+pub mod block_status;
+pub mod blockchain_info;
 pub mod call_analytics;
-pub mod transaction_import;
-pub mod block_import_error;
-pub mod restoration_status;
-pub mod snapshot_manifest;
+pub mod filter;
+pub mod ids;
+pub mod log_entry;
 pub mod mode;
 pub mod pruning_info;
+pub mod receipt;
+pub mod restoration_status;
 pub mod security_level;
-pub mod encoded;
-pub mod basic_account;
+pub mod snapshot_manifest;
+pub mod state_diff;
+pub mod trace_filter;
+pub mod tree_route;
+pub mod verification_queue_info;
+
+/// Type for block number.
+pub type BlockNumber = u64;
--- a/ethcore/types/src/log_entry.rs
+++ b/ethcore/types/src/log_entry.rs
@ -21,13 +21,13 @@ use util::{H256, Address, Bytes, HeapSizeOf, Hashable};
 use util::bloom::Bloomable;
 use rlp::*;

-use basic_types::LogBloom;
-use header::BlockNumber;
+use {BlockNumber};
 use ethjson;

+pub type LogBloom = ::util::H2048;
+
 /// A record of execution for a `LOG` operation.
 #[derive(Default, Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct LogEntry {
 	/// The address of the contract executing at the point of the `LOG` operation.
 	pub address: Address,
@ -82,7 +82,6 @@ impl From<ethjson::state::Log> for LogEntry {

 /// Log localized in a blockchain.
 #[derive(Default, Debug, PartialEq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct LocalizedLogEntry {
 	/// Plain log entry.
 	pub entry: LogEntry,
--- a/ethcore/types/src/mode.rs
+++ b/ethcore/types/src/mode.rs
@ -17,11 +17,9 @@
 //! Mode type

 pub use std::time::Duration;
-use client::Mode as ClientMode;

 /// IPC-capable shadow-type for `client::config::Mode`
 #[derive(Clone, Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum Mode {
 	/// Same as `ClientMode::Off`.
 	Off,
@ -32,25 +30,3 @@ pub enum Mode {
 	/// Same as `ClientMode::Active`.
 	Active,
 }
-
-impl From<ClientMode> for Mode {
-	fn from(mode: ClientMode) -> Self {
-		match mode {
-			ClientMode::Off => Mode::Off,
-			ClientMode::Dark(timeout) => Mode::Dark(timeout.as_secs()),
-			ClientMode::Passive(timeout, alarm) => Mode::Passive(timeout.as_secs(), alarm.as_secs()),
-			ClientMode::Active => Mode::Active,
-		}
-	}
-}
-
-impl From<Mode> for ClientMode {
-	fn from(mode: Mode) -> Self {
-		match mode {
-			Mode::Off => ClientMode::Off,
-			Mode::Dark(timeout) => ClientMode::Dark(Duration::from_secs(timeout)),
-			Mode::Passive(timeout, alarm) => ClientMode::Passive(Duration::from_secs(timeout), Duration::from_secs(alarm)),
-			Mode::Active => ClientMode::Active,
-		}
-	}
-}
--- a/ethcore/types/src/pruning_info.rs
+++ b/ethcore/types/src/pruning_info.rs
@ -22,7 +22,6 @@

 /// Client pruning info. See module-level docs for more details.
 #[derive(Debug, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct PruningInfo {
 	/// The first block which everything can be served after.
 	pub earliest_chain: u64,
--- a/ethcore/types/src/receipt.rs
+++ b/ethcore/types/src/receipt.rs
@ -20,13 +20,11 @@ use util::{H256, U256, Address};
 use util::HeapSizeOf;
 use rlp::*;

-use basic_types::LogBloom;
-use header::BlockNumber;
-use log_entry::{LogEntry, LocalizedLogEntry};
+use {BlockNumber};
+use log_entry::{LogBloom, LogEntry, LocalizedLogEntry};

 /// Information describing execution of a transaction.
 #[derive(Default, Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct Receipt {
 	/// The state root after executing the transaction. Optional since EIP98
 	pub state_root: Option<H256>,
@ -92,7 +90,6 @@ impl HeapSizeOf for Receipt {

 /// Receipt with additional info.
 #[derive(Debug, Clone, PartialEq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct RichReceipt {
 	/// Transaction hash.
 	pub transaction_hash: H256,
@ -114,7 +111,6 @@ pub struct RichReceipt {

 /// Receipt with additional info.
 #[derive(Debug, Clone, PartialEq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct LocalizedReceipt {
 	/// Transaction hash.
 	pub transaction_hash: H256,
@ -138,35 +134,41 @@ pub struct LocalizedReceipt {
 	pub state_root: Option<H256>,
 }

-#[test]
-fn test_no_state_root() {
-	let expected = ::rustc_hex::FromHex::from_hex("f9014183040caeb9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000f838f794dcf421d093428b096ca501a7cd1a740855a7976fc0a00000000000000000000000000000000000000000000000000000000000000000").unwrap();
-	let r = Receipt::new(
-		None,
-		0x40cae.into(),
-		vec![LogEntry {
-			address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),
-			topics: vec![],
-			data: vec![0u8; 32]
-		}]
-	);
-	assert_eq!(&encode(&r)[..], &expected[..]);
-}
+#[cfg(test)]
+mod tests {
+	use super::Receipt;
+	use log_entry::LogEntry;

-#[test]
-fn test_basic() {
-	let expected = ::rustc_hex::FromHex::from_hex("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").unwrap();
-	let r = Receipt::new(
-		Some("2f697d671e9ae4ee24a43c4b0d7e15f1cb4ba6de1561120d43b9a4e8c4a8a6ee".into()),
-		0x40cae.into(),
-		vec![LogEntry {
-			address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),
-			topics: vec![],
-			data: vec![0u8; 32]
-		}]
-	);
-	let encoded = encode(&r);
-	assert_eq!(&encoded[..], &expected[..]);
-	let decoded: Receipt = decode(&encoded);
-	assert_eq!(decoded, r);
+	#[test]
+	fn test_no_state_root() {
+		let expected = ::rustc_hex::FromHex::from_hex("f9014183040caeb9010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000f838f794dcf421d093428b096ca501a7cd1a740855a7976fc0a00000000000000000000000000000000000000000000000000000000000000000").unwrap();
+		let r = Receipt::new(
+			None,
+			0x40cae.into(),
+			vec![LogEntry {
+				address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),
+				topics: vec![],
+				data: vec![0u8; 32]
+			}]
+		);
+		assert_eq!(&::rlp::encode(&r)[..], &expected[..]);
+	}
+
+	#[test]
+	fn test_basic() {
+		let expected = ::rustc_hex::FromHex::from_hex("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").unwrap();
+		let r = Receipt::new(
+			Some("2f697d671e9ae4ee24a43c4b0d7e15f1cb4ba6de1561120d43b9a4e8c4a8a6ee".into()),
+			0x40cae.into(),
+			vec![LogEntry {
+				address: "dcf421d093428b096ca501a7cd1a740855a7976f".into(),
+				topics: vec![],
+				data: vec![0u8; 32]
+			}]
+		);
+		let encoded = ::rlp::encode(&r);
+		assert_eq!(&encoded[..], &expected[..]);
+		let decoded: Receipt = ::rlp::decode(&encoded);
+		assert_eq!(decoded, r);
+	}
 }
--- a/ethcore/types/src/restoration_status.rs
+++ b/ethcore/types/src/restoration_status.rs
@ -18,7 +18,6 @@

 /// Statuses for restorations.
 #[derive(PartialEq, Eq, Clone, Copy, Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum RestorationStatus {
 	///	No restoration.
 	Inactive,
--- a/ethcore/types/src/security_level.rs
+++ b/ethcore/types/src/security_level.rs
@ -16,11 +16,10 @@

 //! Indication of how secure the chain is.

-use header::BlockNumber;
+use {BlockNumber};

 /// Indication of how secure the chain is.
 #[derive(Debug, PartialEq, Copy, Clone, Hash, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub enum SecurityLevel {
 	/// All blocks from genesis to chain head are known to have valid state transitions and PoW.
 	FullState,
--- a/ethcore/types/src/snapshot_manifest.rs
+++ b/ethcore/types/src/snapshot_manifest.rs
@ -22,7 +22,6 @@ use util::Bytes;

 /// Manifest data.
 #[derive(Debug, Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct ManifestData {
 	/// Snapshot format version.
 	pub version: u64,
--- a/ethcore/types/src/state_diff.rs
+++ b/ethcore/types/src/state_diff.rs
@ -22,10 +22,9 @@ use std::collections::BTreeMap;
 use util::Address;
 use account_diff::*;

-#[derive(Debug, PartialEq, Eq, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 /// Expression for the delta between two system states. Encoded the
 /// delta of every altered account.
+#[derive(Debug, PartialEq, Eq, Clone)]
 pub struct StateDiff {
 	/// Raw diff key-value
 	pub raw: BTreeMap<Address, AccountDiff>
--- a/ethcore/types/src/trace_filter.rs
+++ b/ethcore/types/src/trace_filter.rs
@ -18,10 +18,9 @@

 use std::ops::Range;
 use util::{Address};
-use types::ids::BlockId;
+use ids::BlockId;

 /// Easy to use trace filter.
-#[cfg_attr(feature = "ipc", binary)]
 pub struct Filter {
 	/// Range of filtering.
 	pub range: Range<BlockId>,
--- a/ethcore/types/src/tree_route.rs
+++ b/ethcore/types/src/tree_route.rs
@ -20,7 +20,6 @@ use util::H256;

 /// Represents a tree route between `from` block and `to` block:
 #[derive(Debug)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct TreeRoute {
 	/// A vector of hashes of all blocks, ordered from `from` to `to`.
 	pub blocks: Vec<H256>,
@ -29,4 +28,3 @@ pub struct TreeRoute {
 	/// An index where best common ancestor would be.
 	pub index: usize,
 }
-
--- a/ethcore/types/src/verification_queue_info.rs
+++ b/ethcore/types/src/verification_queue_info.rs
@ -18,7 +18,6 @@

 /// Verification queue status
 #[derive(Debug, Clone)]
-#[cfg_attr(feature = "ipc", binary)]
 pub struct VerificationQueueInfo {
 	/// Number of queued items pending verification
 	pub unverified_queue_size: usize,
--- a/evmbin/Cargo.toml
+++ b/evmbin/Cargo.toml
@ -15,6 +15,7 @@ serde = "1.0"
 serde_derive = "1.0"
 ethcore = { path = "../ethcore" }
 ethcore-util = { path = "../util" }
+evm = { path = "../ethcore/evm" }

 [features]
 evm-debug = ["ethcore/evm-debug-tests"]
--- a/Show More
+++ b/Show More