accounts/abi: Fixed bytes input accept []byte and variable input support

Fixed up `[]byte` slice support such that `function print(bytes input)`
accepts `[]byte` as input and treats it as 1 element rather than a slice
of multiple elements.

Added support for variable length input parameters like `bytes` and
`strings`.

1 files changed, 30 insertions, 28 deletions

diff --git a/accounts/abi/numbers.go b/accounts/abi/numbers.go
index c37cd5f68..02609d567 100644
--- a/accounts/abi/numbers.go
+++ b/accounts/abi/numbers.go
@@ -23,36 +23,38 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 )
 
-var big_t = reflect.TypeOf(&big.Int{})
-var ubig_t = reflect.TypeOf(&big.Int{})
-var byte_t = reflect.TypeOf(byte(0))
-var byte_ts = reflect.TypeOf([]byte(nil))
-var uint_t = reflect.TypeOf(uint(0))
-var uint8_t = reflect.TypeOf(uint8(0))
-var uint16_t = reflect.TypeOf(uint16(0))
-var uint32_t = reflect.TypeOf(uint32(0))
-var uint64_t = reflect.TypeOf(uint64(0))
-var int_t = reflect.TypeOf(int(0))
-var int8_t = reflect.TypeOf(int8(0))
-var int16_t = reflect.TypeOf(int16(0))
-var int32_t = reflect.TypeOf(int32(0))
-var int64_t = reflect.TypeOf(int64(0))
-var hash_t = reflect.TypeOf(common.Hash{})
-var address_t = reflect.TypeOf(common.Address{})
+var (
+	big_t     = reflect.TypeOf(&big.Int{})
+	ubig_t    = reflect.TypeOf(&big.Int{})
+	byte_t    = reflect.TypeOf(byte(0))
+	byte_ts   = reflect.TypeOf([]byte(nil))
+	uint_t    = reflect.TypeOf(uint(0))
+	uint8_t   = reflect.TypeOf(uint8(0))
+	uint16_t  = reflect.TypeOf(uint16(0))
+	uint32_t  = reflect.TypeOf(uint32(0))
+	uint64_t  = reflect.TypeOf(uint64(0))
+	int_t     = reflect.TypeOf(int(0))
+	int8_t    = reflect.TypeOf(int8(0))
+	int16_t   = reflect.TypeOf(int16(0))
+	int32_t   = reflect.TypeOf(int32(0))
+	int64_t   = reflect.TypeOf(int64(0))
+	hash_t    = reflect.TypeOf(common.Hash{})
+	address_t = reflect.TypeOf(common.Address{})
 
-var uint_ts = reflect.TypeOf([]uint(nil))
-var uint8_ts = reflect.TypeOf([]uint8(nil))
-var uint16_ts = reflect.TypeOf([]uint16(nil))
-var uint32_ts = reflect.TypeOf([]uint32(nil))
-var uint64_ts = reflect.TypeOf([]uint64(nil))
-var ubig_ts = reflect.TypeOf([]*big.Int(nil))
+	uint_ts   = reflect.TypeOf([]uint(nil))
+	uint8_ts  = reflect.TypeOf([]uint8(nil))
+	uint16_ts = reflect.TypeOf([]uint16(nil))
+	uint32_ts = reflect.TypeOf([]uint32(nil))
+	uint64_ts = reflect.TypeOf([]uint64(nil))
+	ubig_ts   = reflect.TypeOf([]*big.Int(nil))
 
-var int_ts = reflect.TypeOf([]int(nil))
-var int8_ts = reflect.TypeOf([]int8(nil))
-var int16_ts = reflect.TypeOf([]int16(nil))
-var int32_ts = reflect.TypeOf([]int32(nil))
-var int64_ts = reflect.TypeOf([]int64(nil))
-var big_ts = reflect.TypeOf([]*big.Int(nil))
+	int_ts   = reflect.TypeOf([]int(nil))
+	int8_ts  = reflect.TypeOf([]int8(nil))
+	int16_ts = reflect.TypeOf([]int16(nil))
+	int32_ts = reflect.TypeOf([]int32(nil))
+	int64_ts = reflect.TypeOf([]int64(nil))
+	big_ts   = reflect.TypeOf([]*big.Int(nil))
+)
 
 // U256 will ensure unsigned 256bit on big nums
 func U256(n *big.Int) []byte {