From a3857c4e90fa4a3fbe78bd4b53cdc77aa91533cf Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Sat, 26 Aug 2017 21:36:08 +0200
Subject: pkg/compiler, sys/syz-sysgen: move const handling to pkg/compiler

Now pkg/compiler deals with consts.
---
 pkg/ast/clone.go | 196 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 196 insertions(+)
 create mode 100644 pkg/ast/clone.go

(limited to 'pkg/ast/clone.go')

diff --git a/pkg/ast/clone.go b/pkg/ast/clone.go
new file mode 100644
index 000000000..5c2d773f7
--- /dev/null
+++ b/pkg/ast/clone.go
@@ -0,0 +1,196 @@
+// Copyright 2017 syzkaller project authors. All rights reserved.
+// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
+
+package ast
+
+import (
+	"fmt"
+)
+
+func Clone(desc *Description) *Description {
+	desc1 := &Description{}
+	for _, n := range desc.Nodes {
+		c, ok := n.(cloner)
+		if !ok {
+			panic(fmt.Sprintf("unknown top level decl: %#v", n))
+		}
+		desc1.Nodes = append(desc1.Nodes, c.clone())
+	}
+	return desc1
+}
+
+type cloner interface {
+	clone() Node
+}
+
+func (n *NewLine) clone() Node {
+	return &NewLine{
+		Pos: n.Pos,
+	}
+}
+
+func (n *Comment) clone() Node {
+	return &Comment{
+		Pos:  n.Pos,
+		Text: n.Text,
+	}
+}
+
+func (n *Include) clone() Node {
+	return &Include{
+		Pos:  n.Pos,
+		File: n.File.clone(),
+	}
+}
+
+func (n *Incdir) clone() Node {
+	return &Incdir{
+		Pos: n.Pos,
+		Dir: n.Dir.clone(),
+	}
+}
+
+func (n *Define) clone() Node {
+	return &Define{
+		Pos:   n.Pos,
+		Name:  n.Name.clone(),
+		Value: n.Value.clone(),
+	}
+}
+
+func (n *Resource) clone() Node {
+	var values []*Int
+	for _, v := range n.Values {
+		values = append(values, v.clone())
+	}
+	return &Resource{
+		Pos:    n.Pos,
+		Name:   n.Name.clone(),
+		Base:   n.Base.clone(),
+		Values: values,
+	}
+}
+
+func (n *Call) clone() Node {
+	var args []*Field
+	for _, a := range n.Args {
+		args = append(args, a.clone())
+	}
+	var ret *Type
+	if n.Ret != nil {
+		ret = n.Ret.clone()
+	}
+	return &Call{
+		Pos:      n.Pos,
+		Name:     n.Name.clone(),
+		CallName: n.CallName,
+		NR:       n.NR,
+		Args:     args,
+		Ret:      ret,
+	}
+}
+
+func (n *Struct) clone() Node {
+	var fields []*Field
+	for _, f := range n.Fields {
+		fields = append(fields, f.clone())
+	}
+	var attrs []*Ident
+	for _, a := range n.Attrs {
+		attrs = append(attrs, a.clone())
+	}
+	var comments []*Comment
+	for _, c := range n.Comments {
+		comments = append(comments, c.clone().(*Comment))
+	}
+	return &Struct{
+		Pos:      n.Pos,
+		Name:     n.Name.clone(),
+		Fields:   fields,
+		Attrs:    attrs,
+		Comments: comments,
+		IsUnion:  n.IsUnion,
+	}
+}
+
+func (n *IntFlags) clone() Node {
+	var values []*Int
+	for _, v := range n.Values {
+		values = append(values, v.clone())
+	}
+	return &IntFlags{
+		Pos:    n.Pos,
+		Name:   n.Name.clone(),
+		Values: values,
+	}
+}
+
+func (n *StrFlags) clone() Node {
+	var values []*String
+	for _, v := range n.Values {
+		values = append(values, v.clone())
+	}
+	return &StrFlags{
+		Pos:    n.Pos,
+		Name:   n.Name.clone(),
+		Values: values,
+	}
+}
+
+func (n *Ident) clone() *Ident {
+	return &Ident{
+		Pos:  n.Pos,
+		Name: n.Name,
+	}
+}
+
+func (n *String) clone() *String {
+	return &String{
+		Pos:   n.Pos,
+		Value: n.Value,
+	}
+}
+
+func (n *Int) clone() *Int {
+	return &Int{
+		Pos:      n.Pos,
+		Value:    n.Value,
+		ValueHex: n.ValueHex,
+		Ident:    n.Ident,
+		CExpr:    n.CExpr,
+	}
+}
+
+func (n *Type) clone() *Type {
+	var args []*Type
+	for _, a := range n.Args {
+		args = append(args, a.clone())
+	}
+	return &Type{
+		Pos:       n.Pos,
+		Value:     n.Value,
+		ValueHex:  n.ValueHex,
+		Ident:     n.Ident,
+		String:    n.String,
+		HasColon:  n.HasColon,
+		Pos2:      n.Pos2,
+		Value2:    n.Value2,
+		Value2Hex: n.Value2Hex,
+		Ident2:    n.Ident2,
+		Args:      args,
+	}
+}
+
+func (n *Field) clone() *Field {
+	var comments []*Comment
+	for _, c := range n.Comments {
+		comments = append(comments, c.clone().(*Comment))
+	}
+	return &Field{
+		Pos:      n.Pos,
+		Name:     n.Name.clone(),
+		Type:     n.Type.clone(),
+		NewBlock: n.NewBlock,
+		Comments: comments,
+	}
+}
-- 
cgit mrf-deployment