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Merge pull request #3115 from nspcc-dev/3030-opcode-dumps

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Add address and swap endianness to vm opcode dump for hashes
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Roman Khimov 2023-09-04 12:05:35 +03:00 committed by GitHub
commit a59fd50844
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1 changed files with 10 additions and 1 deletions
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9
pkg/vm/vm.go
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@ -3,6 +3,7 @@ package vm
import (
"crypto/elliptic"
"encoding/binary"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
@ -15,6 +16,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
@ -216,11 +218,18 @@ func (v *VM) PrintOps(out io.Writer) {
default:
if utf8.Valid(parameter) {
desc = fmt.Sprintf("%x (%q)", parameter, parameter)
} else {
// Try converting the parameter to an address and swap the endianness
// if the parameter is a 20-byte value.
u, err := util.Uint160DecodeBytesBE(parameter)
if err == nil {
desc = fmt.Sprintf("%x (%q, %q)", parameter, address.Uint160ToString(u), "0x"+hex.EncodeToString(slice.CopyReverse(parameter)))
} else {
desc = fmt.Sprintf("%x", parameter)
}
}
}
}
fmt.Fprintf(w, "%d\t%s\t%s%s\n", ctx.ip, instr, desc, cursor)
if ctx.nextip >= len(ctx.sc.prog) {