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accounts/abi: add internalType information and fix issues (#20179)

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* accounts/abi: fix various issues

The fixed issues include:

(1) If there is no return in a call function, unpack should
return nil error

(2) For some functions which have struct array as parameter,
it will also be detected and generate the struct definition

(3) For event, if it has non-indexed parameter, the parameter
name will also be assigned if empty. Also the internal struct
will be detected and generate struct defition if not exist.

(4) Fix annotation generation in event function

* accounts/abi: add new abi field internalType

* accounts: address comments and add tests

* accounts/abi: replace strings.ReplaceAll with strings.Replace
This commit is contained in:
gary rong
2019-10-31 21:17:51 +08:00
committed by Guillaume Ballet
parent 9278951a62
commit 44b74cfc40
12 changed files with 175 additions and 63 deletions
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84
accounts/abi/bind/bind.go
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@ -86,7 +86,7 @@ func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
if input.Name == "" {
normalized.Inputs[j].Name = fmt.Sprintf("arg%d", j)
}
if _, exist := structs[input.Type.String()]; input.Type.T == abi.TupleTy && !exist {
if hasStruct(input.Type) {
bindStructType[lang](input.Type, structs)
}
}
@ -96,7 +96,7 @@ func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
if output.Name != "" {
normalized.Outputs[j].Name = capitalise(output.Name)
}
if _, exist := structs[output.Type.String()]; output.Type.T == abi.TupleTy && !exist {
if hasStruct(output.Type) {
bindStructType[lang](output.Type, structs)
}
}
@ -119,14 +119,11 @@ func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
normalized.Inputs = make([]abi.Argument, len(original.Inputs))
copy(normalized.Inputs, original.Inputs)
for j, input := range normalized.Inputs {
// Indexed fields are input, non-indexed ones are outputs
if input.Indexed {
if input.Name == "" {
normalized.Inputs[j].Name = fmt.Sprintf("arg%d", j)
}
if _, exist := structs[input.Type.String()]; input.Type.T == abi.TupleTy && !exist {
bindStructType[lang](input.Type, structs)
}
if input.Name == "" {
normalized.Inputs[j].Name = fmt.Sprintf("arg%d", j)
}
if hasStruct(input.Type) {
bindStructType[lang](input.Type, structs)
}
}
// Append the event to the accumulator list
@ -244,7 +241,7 @@ func bindBasicTypeGo(kind abi.Type) string {
func bindTypeGo(kind abi.Type, structs map[string]*tmplStruct) string {
switch kind.T {
case abi.TupleTy:
return structs[kind.String()].Name
return structs[kind.TupleRawName+kind.String()].Name
case abi.ArrayTy:
return fmt.Sprintf("[%d]", kind.Size) + bindTypeGo(*kind.Elem, structs)
case abi.SliceTy:
@ -321,7 +318,7 @@ func pluralizeJavaType(typ string) string {
func bindTypeJava(kind abi.Type, structs map[string]*tmplStruct) string {
switch kind.T {
case abi.TupleTy:
return structs[kind.String()].Name
return structs[kind.TupleRawName+kind.String()].Name
case abi.ArrayTy, abi.SliceTy:
return pluralizeJavaType(bindTypeJava(*kind.Elem, structs))
default:
@ -340,6 +337,13 @@ var bindTopicType = map[Lang]func(kind abi.Type, structs map[string]*tmplStruct)
// funcionality as for simple types, but dynamic types get converted to hashes.
func bindTopicTypeGo(kind abi.Type, structs map[string]*tmplStruct) string {
bound := bindTypeGo(kind, structs)
// todo(rjl493456442) according solidity documentation, indexed event
// parameters that are not value types i.e. arrays and structs are not
// stored directly but instead a keccak256-hash of an encoding is stored.
//
// We only convert stringS and bytes to hash, still need to deal with
// array(both fixed-size and dynamic-size) and struct.
if bound == "string" || bound == "[]byte" {
bound = "common.Hash"
}
@ -350,6 +354,13 @@ func bindTopicTypeGo(kind abi.Type, structs map[string]*tmplStruct) string {
// funcionality as for simple types, but dynamic types get converted to hashes.
func bindTopicTypeJava(kind abi.Type, structs map[string]*tmplStruct) string {
bound := bindTypeJava(kind, structs)
// todo(rjl493456442) according solidity documentation, indexed event
// parameters that are not value types i.e. arrays and structs are not
// stored directly but instead a keccak256-hash of an encoding is stored.
//
// We only convert stringS and bytes to hash, still need to deal with
// array(both fixed-size and dynamic-size) and struct.
if bound == "String" || bound == "byte[]" {
bound = "Hash"
}
@ -369,7 +380,14 @@ var bindStructType = map[Lang]func(kind abi.Type, structs map[string]*tmplStruct
func bindStructTypeGo(kind abi.Type, structs map[string]*tmplStruct) string {
switch kind.T {
case abi.TupleTy:
if s, exist := structs[kind.String()]; exist {
// We compose raw struct name and canonical parameter expression
// together here. The reason is before solidity v0.5.11, kind.TupleRawName
// is empty, so we use canonical parameter expression to distinguish
// different struct definition. From the consideration of backward
// compatibility, we concat these two together so that if kind.TupleRawName
// is not empty, it can have unique id.
id := kind.TupleRawName + kind.String()
if s, exist := structs[id]; exist {
return s.Name
}
var fields []*tmplField
@ -377,8 +395,11 @@ func bindStructTypeGo(kind abi.Type, structs map[string]*tmplStruct) string {
field := bindStructTypeGo(*elem, structs)
fields = append(fields, &tmplField{Type: field, Name: capitalise(kind.TupleRawNames[i]), SolKind: *elem})
}
name := fmt.Sprintf("Struct%d", len(structs))
structs[kind.String()] = &tmplStruct{
name := kind.TupleRawName
if name == "" {
name = fmt.Sprintf("Struct%d", len(structs))
}
structs[id] = &tmplStruct{
Name: name,
Fields: fields,
}
@ -398,7 +419,14 @@ func bindStructTypeGo(kind abi.Type, structs map[string]*tmplStruct) string {
func bindStructTypeJava(kind abi.Type, structs map[string]*tmplStruct) string {
switch kind.T {
case abi.TupleTy:
if s, exist := structs[kind.String()]; exist {
// We compose raw struct name and canonical parameter expression
// together here. The reason is before solidity v0.5.11, kind.TupleRawName
// is empty, so we use canonical parameter expression to distinguish
// different struct definition. From the consideration of backward
// compatibility, we concat these two together so that if kind.TupleRawName
// is not empty, it can have unique id.
id := kind.TupleRawName + kind.String()
if s, exist := structs[id]; exist {
return s.Name
}
var fields []*tmplField
@ -406,8 +434,11 @@ func bindStructTypeJava(kind abi.Type, structs map[string]*tmplStruct) string {
field := bindStructTypeJava(*elem, structs)
fields = append(fields, &tmplField{Type: field, Name: decapitalise(kind.TupleRawNames[i]), SolKind: *elem})
}
name := fmt.Sprintf("Class%d", len(structs))
structs[kind.String()] = &tmplStruct{
name := kind.TupleRawName
if name == "" {
name = fmt.Sprintf("Class%d", len(structs))
}
structs[id] = &tmplStruct{
Name: name,
Fields: fields,
}
@ -497,6 +528,21 @@ func structured(args abi.Arguments) bool {
return true
}
// hasStruct returns an indicator whether the given type is struct, struct slice
// or struct array.
func hasStruct(t abi.Type) bool {
switch t.T {
case abi.SliceTy:
return hasStruct(*t.Elem)
case abi.ArrayTy:
return hasStruct(*t.Elem)
case abi.TupleTy:
return true
default:
return false
}
}
// resolveArgName converts a raw argument representation into a user friendly format.
func resolveArgName(arg abi.Argument, structs map[string]*tmplStruct) string {
var (
@ -512,7 +558,7 @@ loop:
case abi.ArrayTy:
prefix += fmt.Sprintf("[%d]", typ.Size)
default:
embedded = typ.String()
embedded = typ.TupleRawName + typ.String()
break loop
}
typ = typ.Elem