mirror of https://github.com/status-im/op-geth.git
Implemented contract ABI
This commit is contained in:
obscuren
parent
382726fde4
commit
aa5b29e2f2
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@ -0,0 +1,155 @@
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package abi
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import (
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"encoding/json"
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"fmt"
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"io"
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"strings"
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"github.com/ethereum/go-ethereum/crypto"
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)
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// Callable method given a `Name` and whether the method is a constant.
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// If the method is `Const` no transaction needs to be created for this
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// particular Method call. It can easily be simulated using a local VM.
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// For example a `Balance()` method only needs to retrieve something
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// from the storage and therefor requires no Tx to be send to the
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// network. A method such as `Transact` does require a Tx and thus will
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// be flagged `true`.
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// Input specifies the required input parameters for this gives method.
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type Method struct {
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Name string
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Const bool
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Input []Argument
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Return Type // not yet implemented
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}
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// Returns the methods string signature according to the ABI spec.
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//
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// Example
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//
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// function foo(uint32 a, int b) = "foo(uint32,int256)"
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//
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// Please note that "int" is substitute for its canonical representation "int256"
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func (m Method) String() (out string) {
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out += m.Name
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types := make([]string, len(m.Input))
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i := 0
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for _, input := range m.Input {
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types[i] = input.Type.String()
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i++
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}
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out += "(" + strings.Join(types, ",") + ")"
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return
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}
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func (m Method) Id() []byte {
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return crypto.Sha3([]byte(m.String()))[:4]
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}
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// Argument holds the name of the argument and the corresponding type.
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// Types are used when packing and testing arguments.
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type Argument struct {
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Name string
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Type Type
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}
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func (a *Argument) UnmarshalJSON(data []byte) error {
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var extarg struct {
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Name string
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Type string
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}
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err := json.Unmarshal(data, &extarg)
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if err != nil {
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return fmt.Errorf("argument json err: %v", err)
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}
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a.Type, err = NewType(extarg.Type)
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if err != nil {
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return err
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}
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a.Name = extarg.Name
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return nil
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}
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// The ABI holds information about a contract's context and available
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// invokable methods. It will allow you to type check function calls and
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// packs data accordingly.
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type ABI struct {
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Methods map[string]Method
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}
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// tests, tests whether the given input would result in a successful
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// call. Checks argument list count and matches input to `input`.
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func (abi ABI) pack(name string, args ...interface{}) ([]byte, error) {
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method := abi.Methods[name]
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var ret []byte
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for i, a := range args {
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input := method.Input[i]
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packed, err := input.Type.pack(a)
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if err != nil {
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return nil, fmt.Errorf("`%s` %v", name, err)
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}
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ret = append(ret, packed...)
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}
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return ret, nil
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}
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// Pack the given method name to conform the ABI. Method call's data
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// will consist of method_id, args0, arg1, ... argN. Method id consists
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// of 4 bytes and arguments are all 32 bytes.
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// Method ids are created from the first 4 bytes of the hash of the
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// methods string signature. (signature = baz(uint32,string32))
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func (abi ABI) Pack(name string, args ...interface{}) ([]byte, error) {
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method, exist := abi.Methods[name]
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if !exist {
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return nil, fmt.Errorf("method '%s' not found", name)
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}
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// start with argument count match
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if len(args) != len(method.Input) {
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return nil, fmt.Errorf("argument count mismatch: %d for %d", len(args), len(method.Input))
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}
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arguments, err := abi.pack(name, args...)
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if err != nil {
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return nil, err
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}
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// Set function id
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packed := abi.Methods[name].Id()
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packed = append(packed, arguments...)
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return packed, nil
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}
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func (abi *ABI) UnmarshalJSON(data []byte) error {
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var methods []Method
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if err := json.Unmarshal(data, &methods); err != nil {
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return err
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}
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abi.Methods = make(map[string]Method)
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for _, method := range methods {
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abi.Methods[method.Name] = method
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}
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return nil
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}
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func JSON(reader io.Reader) (ABI, error) {
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dec := json.NewDecoder(reader)
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var abi ABI
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if err := dec.Decode(&abi); err != nil {
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return ABI{}, err
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}
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return abi, nil
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}
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@ -0,0 +1,330 @@
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package abi
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import (
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"bytes"
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"math/big"
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"reflect"
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"strings"
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"testing"
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"github.com/ethereum/go-ethereum/crypto"
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)
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const jsondata = `
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[
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{ "name" : "balance", "const" : true },
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{ "name" : "send", "const" : false, "input" : [ { "name" : "amount", "type" : "uint256" } ] }
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]`
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const jsondata2 = `
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[
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{ "name" : "balance", "const" : true },
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{ "name" : "send", "const" : false, "input" : [ { "name" : "amount", "type" : "uint256" } ] },
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{ "name" : "test", "const" : false, "input" : [ { "name" : "number", "type" : "uint32" } ] },
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{ "name" : "string", "const" : false, "input" : [ { "name" : "input", "type" : "string" } ] },
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{ "name" : "bool", "const" : false, "input" : [ { "name" : "input", "type" : "bool" } ] },
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{ "name" : "address", "const" : false, "input" : [ { "name" : "input", "type" : "address" } ] },
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{ "name" : "string32", "const" : false, "input" : [ { "name" : "input", "type" : "string32" } ] },
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{ "name" : "uint64[2]", "const" : false, "input" : [ { "name" : "input", "type" : "uint64[2]" } ] },
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{ "name" : "uint64[]", "const" : false, "input" : [ { "name" : "input", "type" : "uint64[]" } ] },
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{ "name" : "foo", "const" : false, "input" : [ { "name" : "input", "type" : "uint32" } ] },
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{ "name" : "bar", "const" : false, "input" : [ { "name" : "input", "type" : "uint32" }, { "name" : "string", "type" : "uint16" } ] },
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{ "name" : "slice", "const" : false, "input" : [ { "name" : "input", "type" : "uint32[2]" } ] },
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{ "name" : "slice256", "const" : false, "input" : [ { "name" : "input", "type" : "uint256[2]" } ] }
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]`
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func TestType(t *testing.T) {
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typ, err := NewType("uint32")
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if err != nil {
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t.Error(err)
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}
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if typ.Kind != reflect.Ptr {
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t.Error("expected uint32 to have kind Ptr")
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}
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typ, err = NewType("uint32[]")
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if err != nil {
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t.Error(err)
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}
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if typ.Kind != reflect.Slice {
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t.Error("expected uint32[] to have type slice")
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}
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if typ.Type != ubig_ts {
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t.Error("expcted uith32[] to have type uint64")
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}
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typ, err = NewType("uint32[2]")
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if err != nil {
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t.Error(err)
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}
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if typ.Kind != reflect.Slice {
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t.Error("expected uint32[2] to have kind slice")
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}
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if typ.Type != ubig_ts {
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t.Error("expcted uith32[2] to have type uint64")
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}
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if typ.Size != 2 {
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t.Error("expected uint32[2] to have a size of 2")
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}
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}
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func TestReader(t *testing.T) {
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Uint256, _ := NewType("uint256")
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exp := ABI{
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Methods: map[string]Method{
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"balance": Method{
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"balance", true, nil, Type{},
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},
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"send": Method{
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"send", false, []Argument{
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Argument{"amount", Uint256},
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}, Type{},
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},
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},
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}
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abi, err := JSON(strings.NewReader(jsondata))
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if err != nil {
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t.Error(err)
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}
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// deep equal fails for some reason
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t.Skip()
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if !reflect.DeepEqual(abi, exp) {
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t.Errorf("\nabi: %v\ndoes not match exp: %v", abi, exp)
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}
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}
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func TestTestNumbers(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if _, err := abi.Pack("balance"); err != nil {
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t.Error(err)
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}
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if _, err := abi.Pack("balance", 1); err == nil {
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t.Error("expected error for balance(1)")
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}
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if _, err := abi.Pack("doesntexist", nil); err == nil {
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t.Errorf("doesntexist shouldn't exist")
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}
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if _, err := abi.Pack("doesntexist", 1); err == nil {
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t.Errorf("doesntexist(1) shouldn't exist")
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}
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if _, err := abi.Pack("send", big.NewInt(1000)); err != nil {
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t.Error(err)
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}
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i := new(int)
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*i = 1000
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if _, err := abi.Pack("send", i); err == nil {
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t.Errorf("expected send( ptr ) to throw, requires *big.Int instead of *int")
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}
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if _, err := abi.Pack("send", 1000); err != nil {
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t.Error("expected send(1000) to cast to big")
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}
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if _, err := abi.Pack("test", uint32(1000)); err != nil {
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t.Error(err)
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}
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}
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func TestTestString(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if _, err := abi.Pack("string", "hello world"); err != nil {
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t.Error(err)
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}
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str10 := string(make([]byte, 10))
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if _, err := abi.Pack("string32", str10); err != nil {
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t.Error(err)
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}
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str32 := string(make([]byte, 32))
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if _, err := abi.Pack("string32", str32); err != nil {
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t.Error(err)
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}
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str33 := string(make([]byte, 33))
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if _, err := abi.Pack("string32", str33); err == nil {
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t.Error("expected str33 to throw out of bound error")
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}
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}
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func TestTestBool(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if _, err := abi.Pack("bool", true); err != nil {
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t.Error(err)
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}
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}
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func TestTestSlice(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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addr := make([]byte, 20)
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if _, err := abi.Pack("address", addr); err != nil {
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t.Error(err)
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}
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addr = make([]byte, 21)
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if _, err := abi.Pack("address", addr); err == nil {
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t.Error("expected address of 21 width to throw")
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}
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slice := make([]byte, 2)
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if _, err := abi.Pack("uint64[2]", slice); err != nil {
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t.Error(err)
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}
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if _, err := abi.Pack("uint64[]", slice); err != nil {
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t.Error(err)
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}
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}
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func TestTestAddress(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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addr := make([]byte, 20)
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if _, err := abi.Pack("address", addr); err != nil {
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t.Error(err)
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}
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}
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func TestMethodSignature(t *testing.T) {
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String, _ := NewType("string")
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String32, _ := NewType("string32")
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m := Method{"foo", false, []Argument{Argument{"bar", String32}, Argument{"baz", String}}, Type{}}
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exp := "foo(string32,string)"
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if m.String() != exp {
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t.Error("signature mismatch", exp, "!=", m.String())
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}
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idexp := crypto.Sha3([]byte(exp))[:4]
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if !bytes.Equal(m.Id(), idexp) {
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t.Errorf("expected ids to match %x != %x", m.Id(), idexp)
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}
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uintt, _ := NewType("uint")
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m = Method{"foo", false, []Argument{Argument{"bar", uintt}}, Type{}}
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exp = "foo(uint256)"
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if m.String() != exp {
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t.Error("signature mismatch", exp, "!=", m.String())
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}
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}
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func TestPack(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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sig := crypto.Sha3([]byte("foo(uint32)"))[:4]
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sig = append(sig, make([]byte, 32)...)
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sig[35] = 10
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packed, err := abi.Pack("foo", uint32(10))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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}
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func TestMultiPack(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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sig := crypto.Sha3([]byte("bar(uint32,uint16)"))[:4]
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sig = append(sig, make([]byte, 64)...)
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sig[35] = 10
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sig[67] = 11
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packed, err := abi.Pack("bar", uint32(10), uint16(11))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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}
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func TestPackSlice(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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sig := crypto.Sha3([]byte("slice(uint32[2])"))[:4]
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sig = append(sig, make([]byte, 64)...)
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sig[35] = 1
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sig[67] = 2
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packed, err := abi.Pack("slice", []uint32{1, 2})
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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}
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func TestPackSliceBig(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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sig := crypto.Sha3([]byte("slice256(uint256[2])"))[:4]
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sig = append(sig, make([]byte, 64)...)
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sig[35] = 1
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sig[67] = 2
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packed, err := abi.Pack("slice256", []*big.Int{big.NewInt(1), big.NewInt(2)})
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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}
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@ -0,0 +1,10 @@
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// Package abi implements the Ethereum ABI (Application Binary
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// Interface).
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//
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// The Ethereum ABI is strongly typed, known at compile time
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// and static. This ABI will handle basic type casting; unsigned
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// to signed and visa versa. It does not handle slice casting such
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// as unsigned slice to signed slice. Bit size type casting is also
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// handled. ints with a bit size of 32 will be properly cast to int256,
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// etc.
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package abi
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@ -0,0 +1,106 @@
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package abi
|
||||
|
||||
import (
|
||||
"math/big"
|
||||
"reflect"
|
||||
|
||||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
)
|
||||
|
||||
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 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))
|
||||
|
||||
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))
|
||||
|
||||
// U256 will ensure unsigned 256bit on big nums
|
||||
func U256(n *big.Int) []byte {
|
||||
return ethutil.LeftPadBytes(ethutil.U256(n).Bytes(), 32)
|
||||
}
|
||||
|
||||
func S256(n *big.Int) []byte {
|
||||
sint := ethutil.S256(n)
|
||||
ret := ethutil.LeftPadBytes(sint.Bytes(), 32)
|
||||
if sint.Cmp(ethutil.Big0) < 0 {
|
||||
for i, b := range ret {
|
||||
if b == 0 {
|
||||
ret[i] = 1
|
||||
continue
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
return ret
|
||||
}
|
||||
|
||||
// S256 will ensure signed 256bit on big nums
|
||||
func U2U256(n uint64) []byte {
|
||||
return U256(big.NewInt(int64(n)))
|
||||
}
|
||||
|
||||
func S2S256(n int64) []byte {
|
||||
return S256(big.NewInt(n))
|
||||
}
|
||||
|
||||
// packNum packs the given number (using the reflect value) and will cast it to appropriate number representation
|
||||
func packNum(value reflect.Value, to byte) []byte {
|
||||
switch kind := value.Kind(); kind {
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
if to == UintTy {
|
||||
return U2U256(value.Uint())
|
||||
} else {
|
||||
return S2S256(int64(value.Uint()))
|
||||
}
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
if to == UintTy {
|
||||
return U2U256(uint64(value.Int()))
|
||||
} else {
|
||||
return S2S256(value.Int())
|
||||
}
|
||||
case reflect.Ptr:
|
||||
// This only takes care of packing and casting. No type checking is done here. It should be done prior to using this function.
|
||||
if to == UintTy {
|
||||
return U256(value.Interface().(*big.Int))
|
||||
} else {
|
||||
return S256(value.Interface().(*big.Int))
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// checks whether the given reflect value is signed. This also works for slices with a number type
|
||||
func isSigned(v reflect.Value) bool {
|
||||
switch v.Type() {
|
||||
case ubig_ts, big_ts, big_t, ubig_t:
|
||||
return true
|
||||
case int_ts, int8_ts, int16_ts, int32_ts, int64_ts, int_t, int8_t, int16_t, int32_t, int64_t:
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
package abi
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"math/big"
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestNumberTypes(t *testing.T) {
|
||||
ubytes := make([]byte, 32)
|
||||
ubytes[31] = 1
|
||||
sbytesmin := []byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
|
||||
|
||||
unsigned := U256(big.NewInt(1))
|
||||
if !bytes.Equal(unsigned, ubytes) {
|
||||
t.Error("expected %x got %x", ubytes, unsigned)
|
||||
}
|
||||
|
||||
signed := S256(big.NewInt(1))
|
||||
if !bytes.Equal(signed, ubytes) {
|
||||
t.Error("expected %x got %x", ubytes, unsigned)
|
||||
}
|
||||
|
||||
signed = S256(big.NewInt(-1))
|
||||
if !bytes.Equal(signed, sbytesmin) {
|
||||
t.Error("expected %x got %x", ubytes, unsigned)
|
||||
}
|
||||
}
|
||||
|
||||
func TestPackNumber(t *testing.T) {
|
||||
ubytes := make([]byte, 32)
|
||||
ubytes[31] = 1
|
||||
sbytesmin := []byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
|
||||
maxunsigned := []byte{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255}
|
||||
|
||||
packed := packNum(reflect.ValueOf(1), IntTy)
|
||||
if !bytes.Equal(packed, ubytes) {
|
||||
t.Errorf("expected %x got %x", ubytes, packed)
|
||||
}
|
||||
packed = packNum(reflect.ValueOf(-1), IntTy)
|
||||
if !bytes.Equal(packed, sbytesmin) {
|
||||
t.Errorf("expected %x got %x", ubytes, packed)
|
||||
}
|
||||
packed = packNum(reflect.ValueOf(1), UintTy)
|
||||
if !bytes.Equal(packed, ubytes) {
|
||||
t.Errorf("expected %x got %x", ubytes, packed)
|
||||
}
|
||||
packed = packNum(reflect.ValueOf(-1), UintTy)
|
||||
if !bytes.Equal(packed, maxunsigned) {
|
||||
t.Errorf("expected %x got %x", maxunsigned, packed)
|
||||
}
|
||||
|
||||
packed = packNum(reflect.ValueOf("string"), UintTy)
|
||||
if packed != nil {
|
||||
t.Errorf("expected 'string' to pack to nil. got %x instead", packed)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSigned(t *testing.T) {
|
||||
if isSigned(reflect.ValueOf(uint(10))) {
|
||||
t.Error()
|
||||
}
|
||||
|
||||
if !isSigned(reflect.ValueOf(int(10))) {
|
||||
t.Error()
|
||||
}
|
||||
|
||||
if !isSigned(reflect.ValueOf(big.NewInt(10))) {
|
||||
t.Error()
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,106 @@
|
|||
mode: set
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:27.39,31.32 4 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:35.2,37.8 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:31.32,34.3 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:40.29,42.2 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:51.53,57.16 3 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:61.2,62.16 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:65.2,67.12 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:57.16,59.3 1 0
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:62.16,64.3 1 0
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:79.71,83.25 3 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:94.2,94.17 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:83.25,87.17 3 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:90.3,90.31 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:87.17,89.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:102.71,104.12 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:109.2,109.36 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:113.2,114.16 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:119.2,122.20 3 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:104.12,106.3 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:109.36,111.3 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:114.16,116.3 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:125.50,127.55 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:131.2,132.33 2 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:136.2,136.12 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:127.55,129.3 1 0
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:132.33,134.3 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:139.42,143.41 3 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:147.2,147.17 1 1
|
||||
github.com/ethereum/go-ethereum/abi/abi.go:143.41,145.3 1 0
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:39.30,41.2 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:43.30,46.32 3 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:56.2,56.12 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:46.32,47.25 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:47.25,48.14 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:52.4,52.9 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:48.14,50.13 2 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:59.30,61.2 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:63.29,65.2 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:67.51,68.36 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:91.2,91.12 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:69.2,70.19 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:75.2,76.19 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:81.2,83.19 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:70.19,72.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:72.4,74.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:76.19,78.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:78.4,80.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:83.19,85.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:85.4,87.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:94.37,95.18 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:101.2,101.14 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:96.2,97.14 1 1
|
||||
github.com/ethereum/go-ethereum/abi/numbers.go:98.2,99.14 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:32.46,35.16 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:38.2,43.9 3 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:55.2,56.16 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:60.2,64.55 4 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:69.2,69.13 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:111.2,113.8 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:35.16,37.3 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:44.2,47.17 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:48.2,50.12 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:51.2,52.60 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:56.16,58.3 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:64.55,67.3 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:69.13,72.16 3 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:73.3,74.21 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:75.3,76.22 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:77.3,78.66 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:80.3,81.16 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:82.3,86.17 4 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:87.3,91.18 4 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:92.3,93.27 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:94.3,95.30 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:96.3,100.21 4 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:101.3,104.17 3 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:107.3,108.60 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:104.17,106.5 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:116.37,118.2 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:126.51,128.36 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:179.2,179.20 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:129.2,130.23 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:133.3,133.34 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:134.2,135.23 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:138.3,138.34 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:139.2,142.49 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:145.3,145.34 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:146.2,147.42 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:150.3,150.60 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:151.2,152.42 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:157.3,157.23 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:162.3,162.78 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:166.3,167.36 2 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:170.3,170.21 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:171.2,172.19 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:130.23,132.4 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:135.23,137.4 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:142.49,144.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:147.42,149.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:152.42,154.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:157.23,159.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:162.78,164.4 1 0
|
||||
github.com/ethereum/go-ethereum/abi/type.go:167.36,169.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:172.19,174.4 1 1
|
||||
github.com/ethereum/go-ethereum/abi/type.go:174.4,176.4 1 0
|
||||
|
|
@ -0,0 +1,190 @@
|
|||
package abi
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"regexp"
|
||||
"strconv"
|
||||
|
||||
"github.com/ethereum/go-ethereum/ethutil"
|
||||
)
|
||||
|
||||
const (
|
||||
IntTy byte = iota
|
||||
UintTy
|
||||
BoolTy
|
||||
SliceTy
|
||||
AddressTy
|
||||
RealTy
|
||||
)
|
||||
|
||||
// Type is the reflection of the supported argument type
|
||||
type Type struct {
|
||||
Kind reflect.Kind
|
||||
Type reflect.Type
|
||||
Size int
|
||||
T byte // Our own type checking
|
||||
stringKind string // holds the unparsed string for deriving signatures
|
||||
}
|
||||
|
||||
// New type returns a fully parsed Type given by the input string or an error if it can't be parsed.
|
||||
//
|
||||
// Strings can be in the format of:
|
||||
//
|
||||
// Input = Type [ "[" [ Number ] "]" ] Name .
|
||||
// Type = [ "u" ] "int" [ Number ] .
|
||||
//
|
||||
// Examples:
|
||||
//
|
||||
// string int uint real
|
||||
// string32 int8 uint8 uint[]
|
||||
// address int256 uint256 real[2]
|
||||
func NewType(t string) (typ Type, err error) {
|
||||
// 1. full string 2. type 3. (opt.) is slice 4. (opt.) size
|
||||
freg, err := regexp.Compile("([a-zA-Z0-9]+)(\\[([0-9]*)?\\])?")
|
||||
if err != nil {
|
||||
return Type{}, err
|
||||
}
|
||||
res := freg.FindAllStringSubmatch(t, -1)[0]
|
||||
var (
|
||||
isslice bool
|
||||
size int
|
||||
)
|
||||
switch {
|
||||
case res[3] != "":
|
||||
// err is ignored. Already checked for number through the regexp
|
||||
size, _ = strconv.Atoi(res[3])
|
||||
isslice = true
|
||||
case res[2] != "":
|
||||
isslice = true
|
||||
size = -1
|
||||
case res[0] == "":
|
||||
return Type{}, fmt.Errorf("type parse error for `%s`", t)
|
||||
}
|
||||
|
||||
treg, err := regexp.Compile("([a-zA-Z]+)([0-9]*)?")
|
||||
if err != nil {
|
||||
return Type{}, err
|
||||
}
|
||||
|
||||
parsedType := treg.FindAllStringSubmatch(res[1], -1)[0]
|
||||
vsize, _ := strconv.Atoi(parsedType[2])
|
||||
vtype := parsedType[1]
|
||||
// substitute canonical representation
|
||||
if vsize == 0 && (vtype == "int" || vtype == "uint") {
|
||||
vsize = 256
|
||||
t += "256"
|
||||
}
|
||||
|
||||
if isslice {
|
||||
typ.Kind = reflect.Slice
|
||||
typ.Size = size
|
||||
switch vtype {
|
||||
case "int":
|
||||
typ.Type = big_ts
|
||||
case "uint":
|
||||
typ.Type = ubig_ts
|
||||
default:
|
||||
return Type{}, fmt.Errorf("unsupported arg slice type: %s", t)
|
||||
}
|
||||
} else {
|
||||
switch vtype {
|
||||
case "int":
|
||||
typ.Kind = reflect.Ptr
|
||||
typ.Type = big_t
|
||||
typ.Size = 256
|
||||
typ.T = IntTy
|
||||
case "uint":
|
||||
typ.Kind = reflect.Ptr
|
||||
typ.Type = ubig_t
|
||||
typ.Size = 256
|
||||
typ.T = UintTy
|
||||
case "bool":
|
||||
typ.Kind = reflect.Bool
|
||||
case "real": // TODO
|
||||
typ.Kind = reflect.Invalid
|
||||
case "address":
|
||||
typ.Kind = reflect.Slice
|
||||
typ.Type = byte_ts
|
||||
typ.Size = 20
|
||||
typ.T = AddressTy
|
||||
case "string":
|
||||
typ.Kind = reflect.String
|
||||
typ.Size = -1
|
||||
if vsize > 0 {
|
||||
typ.Size = 32
|
||||
}
|
||||
default:
|
||||
return Type{}, fmt.Errorf("unsupported arg type: %s", t)
|
||||
}
|
||||
}
|
||||
typ.stringKind = t
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func (t Type) String() (out string) {
|
||||
return t.stringKind
|
||||
}
|
||||
|
||||
// Test the given input parameter `v` and checks if it matches certain
|
||||
// criteria
|
||||
// * Big integers are checks for ptr types and if the given value is
|
||||
// assignable
|
||||
// * Integer are checked for size
|
||||
// * Strings, addresses and bytes are checks for type and size
|
||||
func (t Type) pack(v interface{}) ([]byte, error) {
|
||||
value := reflect.ValueOf(v)
|
||||
switch kind := value.Kind(); kind {
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
if t.Type != ubig_t {
|
||||
return nil, fmt.Errorf("type mismatch: %s for %T", t.Type, v)
|
||||
}
|
||||
return packNum(value, t.T), nil
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
if t.Type != ubig_t {
|
||||
return nil, fmt.Errorf("type mismatch: %s for %T", t.Type, v)
|
||||
}
|
||||
return packNum(value, t.T), nil
|
||||
case reflect.Ptr:
|
||||
// If the value is a ptr do a assign check (only used by
|
||||
// big.Int for now)
|
||||
if t.Type == ubig_t && value.Type() != ubig_t {
|
||||
return nil, fmt.Errorf("type mismatch: %s for %T", t.Type, v)
|
||||
}
|
||||
return packNum(value, t.T), nil
|
||||
case reflect.String:
|
||||
if t.Size > -1 && value.Len() > t.Size {
|
||||
return nil, fmt.Errorf("%v out of bound. %d for %d", value.Kind(), value.Len(), t.Size)
|
||||
}
|
||||
return []byte(ethutil.LeftPadString(t.String(), 32)), nil
|
||||
case reflect.Slice:
|
||||
if t.Size > -1 && value.Len() > t.Size {
|
||||
return nil, fmt.Errorf("%v out of bound. %d for %d", value.Kind(), value.Len(), t.Size)
|
||||
}
|
||||
|
||||
// Address is a special slice. The slice acts as one rather than a list of elements.
|
||||
if t.T == AddressTy {
|
||||
return ethutil.LeftPadBytes(v.([]byte), 32), nil
|
||||
}
|
||||
|
||||
// Signed / Unsigned check
|
||||
if (t.T != IntTy && isSigned(value)) || (t.T == UintTy && isSigned(value)) {
|
||||
return nil, fmt.Errorf("slice of incompatible types.")
|
||||
}
|
||||
|
||||
var packed []byte
|
||||
for i := 0; i < value.Len(); i++ {
|
||||
packed = append(packed, packNum(value.Index(i), t.T)...)
|
||||
}
|
||||
return packed, nil
|
||||
case reflect.Bool:
|
||||
if value.Bool() {
|
||||
return ethutil.LeftPadBytes(ethutil.Big1.Bytes(), 32), nil
|
||||
} else {
|
||||
return ethutil.LeftPadBytes(ethutil.Big0.Bytes(), 32), nil
|
||||
}
|
||||
}
|
||||
|
||||
panic("unreached")
|
||||
}
|
||||
|
|
@ -15,7 +15,7 @@ if ls $dir/*.go &> /dev/null; then
|
|||
# echo $dir
|
||||
if [[ $dir != "./tests/vm" ]]
|
||||
then
|
||||
go test -covermode=count -coverprofile=$dir/profile.tmp $dir
|
||||
$GOROOT/bin/go test -covermode=count -coverprofile=$dir/profile.tmp $dir
|
||||
fi
|
||||
if [ -f $dir/profile.tmp ]
|
||||
then
|
||||
|
|
@ -25,7 +25,7 @@ if ls $dir/*.go &> /dev/null; then
|
|||
fi
|
||||
done
|
||||
|
||||
go tool cover -func profile.cov
|
||||
$GOROOT/bin/go tool cover -func profile.cov
|
||||
|
||||
# To submit the test coverage result to coveralls.io,
|
||||
# use goveralls (https://github.com/mattn/goveralls)
|
||||
|
|
|
|||
Loading…
Reference in New Issue