go: Fix support for CREATE2 salt

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## [6.0.2-dev] - unreleased
+
+- Fixed: [[#179](https://github.com/ethereum/evmc/pull/179)]
+  Add missing salt argument for CREATE2 in Host in Go bindings.
+
 ## [6.0.1] - 2018-11-10
 
 - Fixed: [[#169](https://github.com/ethereum/evmc/pull/169)]
@@ -85,6 +90,7 @@
   Constantinople: Storage status is reported back from `evmc_set_storage()`.
 
 
+[6.0.2-dev]: https://github.com/ethereum/evmc/compare/v6.0.1...release/6.0
 [6.0.1]: https://github.com/ethereum/evmc/releases/tag/v6.0.1
 [6.0.0]: https://github.com/ethereum/evmc/releases/tag/v6.0.0
 [5.2.0]: https://github.com/ethereum/evmc/releases/tag/v5.2.0

bindings/go/evmc/host.go

@@ -84,7 +84,7 @@ type HostContext interface {
 	EmitLog(addr common.Address, topics []common.Hash, data []byte)
 	Call(kind CallKind,
 		destination common.Address, sender common.Address, value *big.Int, input []byte, gas int64, depth int,
-		static bool) (output []byte, gasLeft int64, createAddr common.Address, err error)
+		static bool, salt *big.Int) (output []byte, gasLeft int64, createAddr common.Address, err error)
 }
 
 //export accountExists
@@ -207,7 +207,7 @@ func call(pCtx unsafe.Pointer, msg *C.struct_evmc_message) C.struct_evmc_result
 
 	kind := CallKind(msg.kind)
 	output, gasLeft, createAddr, err := ctx.Call(kind, goAddress(msg.destination), goAddress(msg.sender), goHash(msg.value).Big(),
-		goByteSlice(msg.input_data, msg.input_size), int64(msg.gas), int(msg.depth), msg.flags != 0)
+		goByteSlice(msg.input_data, msg.input_size), int64(msg.gas), int(msg.depth), msg.flags != 0, goHash(msg.create2_salt).Big())
 
 	statusCode := C.enum_evmc_status_code(0)
 	if err != nil {