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accounts/abi: ABI fixes & added types

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Changed field `input` to new `inputs`. Addad Hash and Address as input
types.

Added bytes[N] and N validation
This commit is contained in:
Jeffrey Wilcke
2015-10-28 22:57:21 +01:00
parent 6b5a42a15c
commit 1f72952f04
3 changed files with 80 additions and 21 deletions
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75
accounts/abi/abi_test.go
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@ -18,35 +18,38 @@ package abi
import (
"bytes"
"fmt"
"log"
"math/big"
"reflect"
"strings"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
)
const jsondata = `
[
{ "name" : "balance", "const" : true },
{ "name" : "send", "const" : false, "input" : [ { "name" : "amount", "type" : "uint256" } ] }
{ "name" : "send", "const" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] }
]`
const jsondata2 = `
[
{ "name" : "balance", "const" : true },
{ "name" : "send", "const" : false, "input" : [ { "name" : "amount", "type" : "uint256" } ] },
{ "name" : "test", "const" : false, "input" : [ { "name" : "number", "type" : "uint32" } ] },
{ "name" : "string", "const" : false, "input" : [ { "name" : "input", "type" : "string" } ] },
{ "name" : "bool", "const" : false, "input" : [ { "name" : "input", "type" : "bool" } ] },
{ "name" : "address", "const" : false, "input" : [ { "name" : "input", "type" : "address" } ] },
{ "name" : "string32", "const" : false, "input" : [ { "name" : "input", "type" : "string32" } ] },
{ "name" : "uint64[2]", "const" : false, "input" : [ { "name" : "input", "type" : "uint64[2]" } ] },
{ "name" : "uint64[]", "const" : false, "input" : [ { "name" : "input", "type" : "uint64[]" } ] },
{ "name" : "foo", "const" : false, "input" : [ { "name" : "input", "type" : "uint32" } ] },
{ "name" : "bar", "const" : false, "input" : [ { "name" : "input", "type" : "uint32" }, { "name" : "string", "type" : "uint16" } ] },
{ "name" : "slice", "const" : false, "input" : [ { "name" : "input", "type" : "uint32[2]" } ] },
{ "name" : "slice256", "const" : false, "input" : [ { "name" : "input", "type" : "uint256[2]" } ] }
{ "name" : "send", "const" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] },
{ "name" : "test", "const" : false, "inputs" : [ { "name" : "number", "type" : "uint32" } ] },
{ "name" : "string", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "string" } ] },
{ "name" : "bool", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "bool" } ] },
{ "name" : "address", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "address" } ] },
{ "name" : "string32", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "string32" } ] },
{ "name" : "uint64[2]", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint64[2]" } ] },
{ "name" : "uint64[]", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint64[]" } ] },
{ "name" : "foo", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32" } ] },
{ "name" : "bar", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32" }, { "name" : "string", "type" : "uint16" } ] },
{ "name" : "slice", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32[2]" } ] },
{ "name" : "slice256", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint256[2]" } ] }
]`
func TestType(t *testing.T) {
@ -344,3 +347,49 @@ func TestPackSliceBig(t *testing.T) {
t.Errorf("expected %x got %x", sig, packed)
}
}
func ExampleJSON() {
const definition = `[{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"isBar","outputs":[{"name":"","type":"bool"}],"type":"function"}]`
abi, err := JSON(strings.NewReader(definition))
if err != nil {
log.Fatalln(err)
}
out, err := abi.Pack("isBar", common.HexToAddress("01"))
if err != nil {
log.Fatalln(err)
}
fmt.Printf("%x\n", out)
// Output:
// 1f2c40920000000000000000000000000000000000000000000000000000000000000001
}
func TestBytes(t *testing.T) {
const definition = `[
{ "name" : "balance", "const" : true, "inputs" : [ { "name" : "address", "type" : "bytes20" } ] },
{ "name" : "send", "const" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] }
]`
abi, err := JSON(strings.NewReader(definition))
if err != nil {
t.Fatal(err)
}
ok := make([]byte, 20)
_, err = abi.Pack("balance", ok)
if err != nil {
t.Error(err)
}
toosmall := make([]byte, 19)
_, err = abi.Pack("balance", toosmall)
if err != nil {
t.Error(err)
}
toobig := make([]byte, 21)
_, err = abi.Pack("balance", toobig)
if err == nil {
t.Error("expected error")
}
}