tendermint/binary -> tendermint/wire

wire/util.go

@@ -0,0 +1,61 @@
+package wire
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"github.com/tendermint/tendermint/Godeps/_workspace/src/code.google.com/p/go.crypto/ripemd160"
+
+	. "github.com/tendermint/tendermint/common"
+)
+
+func BinaryBytes(o interface{}) []byte {
+	w, n, err := new(bytes.Buffer), new(int64), new(error)
+	WriteBinary(o, w, n, err)
+	if *err != nil {
+		PanicSanity(*err)
+	}
+	return w.Bytes()
+}
+
+func JSONBytes(o interface{}) []byte {
+	w, n, err := new(bytes.Buffer), new(int64), new(error)
+	WriteJSON(o, w, n, err)
+	if *err != nil {
+		PanicSanity(*err)
+	}
+	return w.Bytes()
+}
+
+// NOTE: does not care about the type, only the binary representation.
+func BinaryEqual(a, b interface{}) bool {
+	aBytes := BinaryBytes(a)
+	bBytes := BinaryBytes(b)
+	return bytes.Equal(aBytes, bBytes)
+}
+
+// NOTE: does not care about the type, only the binary representation.
+func BinaryCompare(a, b interface{}) int {
+	aBytes := BinaryBytes(a)
+	bBytes := BinaryBytes(b)
+	return bytes.Compare(aBytes, bBytes)
+}
+
+// NOTE: only use this if you need 32 bytes.
+func BinarySha256(o interface{}) []byte {
+	hasher, n, err := sha256.New(), new(int64), new(error)
+	WriteBinary(o, hasher, n, err)
+	if *err != nil {
+		PanicSanity(*err)
+	}
+	return hasher.Sum(nil)
+}
+
+// NOTE: The default hash function is Ripemd160.
+func BinaryRipemd160(o interface{}) []byte {
+	hasher, n, err := ripemd160.New(), new(int64), new(error)
+	WriteBinary(o, hasher, n, err)
+	if *err != nil {
+		PanicSanity(*err)
+	}
+	return hasher.Sum(nil)
+}