diff --git a/accounts/abi/bind/bind_test.go b/accounts/abi/bind/bind_test.go index 1a8a17e45..4a504516b 100644 --- a/accounts/abi/bind/bind_test.go +++ b/accounts/abi/bind/bind_test.go @@ -569,6 +569,45 @@ var bindTests = []struct { nil, nil, }, + { + `NonExistentStruct`, + ` + contract NonExistentStruct { + function Struct() public view returns(uint256 a, uint256 b) { + return (10, 10); + } + } + `, + []string{`6080604052348015600f57600080fd5b5060888061001e6000396000f3fe6080604052348015600f57600080fd5b506004361060285760003560e01c8063d5f6622514602d575b600080fd5b6033604c565b6040805192835260208301919091528051918290030190f35b600a809156fea264697066735822beefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeefbeef64736f6c6343decafe0033`}, + []string{`[{"inputs":[],"name":"Struct","outputs":[{"internalType":"uint256","name":"a","type":"uint256"},{"internalType":"uint256","name":"b","type":"uint256"}],"stateMutability":"pure","type":"function"}]`}, + ` + "github.com/ethereum/go-ethereum/accounts/abi/bind" + "github.com/ethereum/go-ethereum/accounts/abi/bind/backends" + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core" + `, + ` + // Create a simulator and wrap a non-deployed contract + + sim := backends.NewSimulatedBackend(core.GenesisAlloc{}, uint64(10000000000)) + defer sim.Close() + + nonexistent, err := NewNonExistentStruct(common.Address{}, sim) + if err != nil { + t.Fatalf("Failed to access non-existent contract: %v", err) + } + // Ensure that contract calls fail with the appropriate error + if res, err := nonexistent.Struct(nil); err == nil { + t.Fatalf("Call succeeded on non-existent contract: %v", res) + } else if (err != bind.ErrNoCode) { + t.Fatalf("Error mismatch: have %v, want %v", err, bind.ErrNoCode) + } + `, + nil, + nil, + nil, + nil, + }, // Tests that gas estimation works for contracts with weird gas mechanics too. { `FunkyGasPattern`, diff --git a/accounts/abi/bind/template.go b/accounts/abi/bind/template.go index 8dac11f79..351eabd25 100644 --- a/accounts/abi/bind/template.go +++ b/accounts/abi/bind/template.go @@ -304,6 +304,9 @@ var ( err := _{{$contract.Type}}.contract.Call(opts, &out, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}}) {{if .Structured}} outstruct := new(struct{ {{range .Normalized.Outputs}} {{.Name}} {{bindtype .Type $structs}}; {{end}} }) + if err != nil { + return *outstruct, err + } {{range $i, $t := .Normalized.Outputs}} outstruct.{{.Name}} = out[{{$i}}].({{bindtype .Type $structs}}){{end}}