compiler: add Hash to debug info

part of #1088

pkg/compiler/codegen.go

@@ -1424,7 +1424,7 @@ func CodeGen(info *buildInfo) ([]byte, *DebugInfo, error) {
 	if err := c.writeJumps(buf); err != nil {
 		return nil, nil, err
 	}
-	return buf, c.emitDebugInfo(), nil
+	return buf, c.emitDebugInfo(buf), nil
 }
 
 func (c *codegen) resolveFuncDecls(f *ast.File, pkg *types.Package) {

pkg/compiler/compiler.go

@@ -118,7 +118,7 @@ func CompileAndSave(src string, o *Options) ([]byte, error) {
 	if o.ABIInfo == "" {
 		return b, err
 	}
-	abi := di.convertToABI(b, o.ContractFeatures)
+	abi := di.convertToABI(o.ContractFeatures)
 	abiData, err := json.Marshal(abi)
 	if err != nil {
 		return b, err

pkg/compiler/debug.go

@@ -16,6 +16,7 @@ import (
 
 // DebugInfo represents smart-contract debug information.
 type DebugInfo struct {
+	Hash       util.Uint160      `json:"hash"`
 	EntryPoint string            `json:"entrypoint"`
 	Documents  []string          `json:"documents"`
 	Methods    []MethodDebugInfo `json:"methods"`
@@ -131,8 +132,9 @@ func (c *codegen) saveSequencePoint(n ast.Node) {
 	})
 }
 
-func (c *codegen) emitDebugInfo() *DebugInfo {
+func (c *codegen) emitDebugInfo(contract []byte) *DebugInfo {
 	d := &DebugInfo{
+		Hash:       hash.Hash160(contract),
 		EntryPoint: mainIdent,
 		Events:     []EventDebugInfo{},
 	}
@@ -313,7 +315,7 @@ func parsePairJSON(data []byte, sep string) (string, string, error) {
 
 // convertToABI converts contract to the ABI struct for debugger.
 // Note: manifest is taken from the external source, however it can be generated ad-hoc. See #1038.
-func (di *DebugInfo) convertToABI(contract []byte, fs smartcontract.PropertyState) ABI {
+func (di *DebugInfo) convertToABI(fs smartcontract.PropertyState) ABI {
 	methods := make([]Method, 0)
 	for _, method := range di.Methods {
 		if method.Name.Name == di.EntryPoint {
@@ -333,7 +335,7 @@ func (di *DebugInfo) convertToABI(contract []byte, fs smartcontract.PropertyStat
 		}
 	}
 	return ABI{
-		Hash: hash.Hash160(contract),
+		Hash: di.Hash,
 		Metadata: Metadata{
 			HasStorage: fs&smartcontract.HasStorage != 0,
 			IsPayable:  fs&smartcontract.IsPayable != 0,

pkg/compiler/debug_test.go

@@ -6,6 +6,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
 	"github.com/nspcc-dev/neo-go/pkg/internal/testserdes"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
+	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -47,9 +48,13 @@ func methodStruct() struct{} { return struct{}{} }
 	require.NoError(t, c.compile(info, pkg))
 
 	buf := c.prog.Bytes()
-	d := c.emitDebugInfo()
+	d := c.emitDebugInfo(buf)
 	require.NotNil(t, d)
 
+	t.Run("hash", func(t *testing.T) {
+		require.True(t, hash.Hash160(buf).Equals(d.Hash))
+	})
+
 	t.Run("return types", func(t *testing.T) {
 		returnTypes := map[string]string{
 			"methodInt":    "Integer",
@@ -117,7 +122,7 @@ func methodStruct() struct{} { return struct{}{} }
 	}
 
 	t.Run("convert to ABI", func(t *testing.T) {
-		actual := d.convertToABI(buf, smartcontract.HasStorage)
+		actual := d.convertToABI(smartcontract.HasStorage)
 		expected := ABI{
 			Hash: hash.Hash160(buf),
 			Metadata: Metadata{
@@ -160,7 +165,8 @@ func TestSequencePoints(t *testing.T) {
 	c := newCodegen(info, pkg)
 	require.NoError(t, c.compile(info, pkg))
 
-	d := c.emitDebugInfo()
+	buf := c.prog.Bytes()
+	d := c.emitDebugInfo(buf)
 	require.NotNil(t, d)
 
 	// Main func has 2 return on 4-th and 6-th lines.
@@ -172,6 +178,7 @@ func TestSequencePoints(t *testing.T) {
 
 func TestDebugInfo_MarshalJSON(t *testing.T) {
 	d := &DebugInfo{
+		Hash:       util.Uint160{10, 11, 12, 13},
 		EntryPoint: "main",
 		Documents:  []string{"/path/to/file"},
 		Methods: []MethodDebugInfo{