Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

accounts/abi/bind: avoid reclaring structs #20381

Merged
merged 1 commit into from
Nov 25, 2019
Merged

accounts/abi/bind: avoid reclaring structs #20381

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 9 additions & 6 deletions accounts/abi/bind/bind.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -48,12 +48,16 @@ const (
// enforces compile time type safety and naming convention opposed to having to
// manually maintain hard coded strings that break on runtime.
func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]string, pkg string, lang Lang, libs map[string]string, aliases map[string]string) (string, error) {
// Process each individual contract requested binding
contracts := make(map[string]*tmplContract)
var (
// contracts is the map of each individual contract requested binding
contracts = make(map[string]*tmplContract)

// Map used to flag each encountered library as such
isLib := make(map[string]struct{})
// structs is the map of all reclared structs shared by passed contracts.
structs = make(map[string]*tmplStruct)

// isLib is the map used to flag each encountered library as such
isLib = make(map[string]struct{})
)
for i := 0; i < len(types); i++ {
// Parse the actual ABI to generate the binding for
evmABI, err := abi.JSON(strings.NewReader(abis[i]))
Expand All @@ -73,7 +77,6 @@ func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
calls = make(map[string]*tmplMethod)
transacts = make(map[string]*tmplMethod)
events = make(map[string]*tmplEvent)
structs = make(map[string]*tmplStruct)

// identifiers are used to detect duplicated identifier of function
// and event. For all calls, transacts and events, abigen will generate
Expand Down Expand Up @@ -168,7 +171,6 @@ func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
Transacts: transacts,
Events: events,
Libraries: make(map[string]string),
Structs: structs,
}
// Function 4-byte signatures are stored in the same sequence
// as types, if available.
Expand Down Expand Up @@ -200,6 +202,7 @@ func Bind(types []string, abis []string, bytecodes []string, fsigs []map[string]
Package: pkg,
Contracts: contracts,
Libraries: libs,
Structs: structs,
}
buffer := new(bytes.Buffer)

Expand Down
82 changes: 82 additions & 0 deletions accounts/abi/bind/bind_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1448,6 +1448,88 @@ var bindTests = []struct {
map[string]string{"_myVar": "pubVar"}, // alias MyVar to PubVar
nil,
},
{
"MultiContracts",
`
pragma solidity ^0.5.11;
pragma experimental ABIEncoderV2;

library ExternalLib {
struct SharedStruct{
uint256 f1;
bytes32 f2;
}
}

contract ContractOne {
function foo(ExternalLib.SharedStruct memory s) pure public {
// Do stuff
}
}

contract ContractTwo {
function bar(ExternalLib.SharedStruct memory s) pure public {
// Do stuff
}
}
`,
[]string{
`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`,
`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`,
`606c6026600b82828239805160001a6073141515601857fe5b30600052607381538281f350fe73000000000000000000000000000000000000000030146080604052600436106023575b60006000fdfea365627a7a72315820518f0110144f5b3de95697d05e456a064656890d08e6f9cff47f3be710cc46a36c6578706572696d656e74616cf564736f6c634300050c0040`,
},
[]string{
`[{"constant":true,"inputs":[{"components":[{"internalType":"uint256","name":"f1","type":"uint256"},{"internalType":"bytes32","name":"f2","type":"bytes32"}],"internalType":"struct ExternalLib.SharedStruct","name":"s","type":"tuple"}],"name":"foo","outputs":[],"payable":false,"stateMutability":"pure","type":"function"}]`,
`[{"constant":true,"inputs":[{"components":[{"internalType":"uint256","name":"f1","type":"uint256"},{"internalType":"bytes32","name":"f2","type":"bytes32"}],"internalType":"struct ExternalLib.SharedStruct","name":"s","type":"tuple"}],"name":"bar","outputs":[],"payable":false,"stateMutability":"pure","type":"function"}]`,
`[]`,
},
`
"math/big"

"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/core"
`,
`
key, _ := crypto.GenerateKey()
addr := crypto.PubkeyToAddress(key.PublicKey)

// Deploy registrar contract
sim := backends.NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(1000000000)}}, 10000000)
defer sim.Close()

transactOpts := bind.NewKeyedTransactor(key)
_, _, c1, err := DeployContractOne(transactOpts, sim)
if err != nil {
t.Fatal("Failed to deploy contract")
}
sim.Commit()
err = c1.Foo(nil, ExternalLibSharedStruct{
F1: big.NewInt(100),
F2: [32]byte{0x01, 0x02, 0x03},
})
if err != nil {
t.Fatal("Failed to invoke function")
}
_, _, c2, err := DeployContractTwo(transactOpts, sim)
if err != nil {
t.Fatal("Failed to deploy contract")
}
sim.Commit()
err = c2.Bar(nil, ExternalLibSharedStruct{
F1: big.NewInt(100),
F2: [32]byte{0x01, 0x02, 0x03},
})
if err != nil {
t.Fatal("Failed to invoke function")
}
`,
nil,
nil,
nil,
[]string{"ContractOne", "ContractTwo", "ExternalLib"},
},
}

// Tests that packages generated by the binder can be successfully compiled and
Expand Down
24 changes: 12 additions & 12 deletions accounts/abi/bind/template.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ type tmplData struct {
Package string // Name of the package to place the generated file in
Contracts map[string]*tmplContract // List of contracts to generate into this file
Libraries map[string]string // Map the bytecode's link pattern to the library name
Structs map[string]*tmplStruct // Contract struct type definitions
}

// tmplContract contains the data needed to generate an individual contract binding.
Expand All @@ -36,8 +37,7 @@ type tmplContract struct {
Transacts map[string]*tmplMethod // Contract calls that write state data
Events map[string]*tmplEvent // Contract events accessors
Libraries map[string]string // Same as tmplData, but filtered to only keep what the contract needs
Structs map[string]*tmplStruct // Contract struct type definitions
Library bool
Library bool // Indicator whether the contract is a library
}

// tmplMethod is a wrapper around an abi.Method that contains a few preprocessed
Expand Down Expand Up @@ -108,8 +108,16 @@ var (
_ = event.NewSubscription
)

{{$structs := .Structs}}
{{range $structs}}
// {{.Name}} is an auto generated low-level Go binding around an user-defined struct.
type {{.Name}} struct {
{{range $field := .Fields}}
{{$field.Name}} {{$field.Type}}{{end}}
}
{{end}}

{{range $contract := .Contracts}}
{{$structs := $contract.Structs}}
// {{.Type}}ABI is the input ABI used to generate the binding from.
const {{.Type}}ABI = "{{.InputABI}}"

Expand Down Expand Up @@ -285,14 +293,6 @@ var (
return _{{$contract.Type}}.Contract.contract.Transact(opts, method, params...)
}

{{range .Structs}}
// {{.Name}} is an auto generated low-level Go binding around an user-defined struct.
type {{.Name}} struct {
{{range $field := .Fields}}
{{$field.Name}} {{$field.Type}}{{end}}
}
{{end}}

{{range .Calls}}
// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
//
Expand Down Expand Up @@ -507,8 +507,8 @@ package {{.Package}};
import org.ethereum.geth.*;
import java.util.*;

{{$structs := .Structs}}
{{range $contract := .Contracts}}
{{$structs := $contract.Structs}}
{{if not .Library}}public {{end}}class {{.Type}} {
// ABI is the input ABI used to generate the binding from.
public final static String ABI = "{{.InputABI}}";
Expand Down