add comments

node/scalar/dnumber.go

@@ -4,22 +4,27 @@ import (
 	"github.com/z7zmey/php-parser/node"
 )
 
+// Dnumber node
 type Dnumber struct {
 	Value string
 }
 
+// NewDnumber node constuctor
 func NewDnumber(Value string) *Dnumber {
 	return &Dnumber{
 		Value,
 	}
 }
 
+// Attributes returns node attributes as map
 func (n *Dnumber) Attributes() map[string]interface{} {
 	return map[string]interface{}{
 		"Value": n.Value,
 	}
 }
 
+// Walk traverses nodes
+// Walk is invoked recursively until v.EnterNode returns true
 func (n *Dnumber) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/encapsed.go

@@ -4,20 +4,25 @@ import (
 	"github.com/z7zmey/php-parser/node"
 )
 
+// Encapsed node
 type Encapsed struct {
 	Parts []node.Node
 }
 
+// NewEncapsed node constuctor
 func NewEncapsed(Parts []node.Node) *Encapsed {
 	return &Encapsed{
 		Parts,
 	}
 }
 
+// Attributes returns node attributes as map
 func (n *Encapsed) Attributes() map[string]interface{} {
 	return nil
 }
 
+// Walk traverses nodes
+// Walk is invoked recursively until v.EnterNode returns true
 func (n *Encapsed) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/encapsed_string_part.go

@@ -4,22 +4,27 @@ import (
 	"github.com/z7zmey/php-parser/node"
 )
 
+// EncapsedStringPart node
 type EncapsedStringPart struct {
 	Value string
 }
 
+// NewEncapsedStringPart node constuctor
 func NewEncapsedStringPart(Value string) *EncapsedStringPart {
 	return &EncapsedStringPart{
 		Value,
 	}
 }
 
+// Attributes returns node attributes as map
 func (n *EncapsedStringPart) Attributes() map[string]interface{} {
 	return map[string]interface{}{
 		"Value": n.Value,
 	}
 }
 
+// Walk traverses nodes
+// Walk is invoked recursively until v.EnterNode returns true
 func (n *EncapsedStringPart) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/lnumber.go

@@ -4,22 +4,27 @@ import (
 	"github.com/z7zmey/php-parser/node"
 )
 
+// Lnumber node
 type Lnumber struct {
 	Value string
 }
 
+// NewLnumber node constuctor
 func NewLnumber(Value string) *Lnumber {
 	return &Lnumber{
 		Value,
 	}
 }
 
+// Attributes returns node attributes as map
 func (n *Lnumber) Attributes() map[string]interface{} {
 	return map[string]interface{}{
 		"Value": n.Value,
 	}
 }
 
+// Walk traverses nodes
+// Walk is invoked recursively until v.EnterNode returns true
 func (n *Lnumber) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/magic_constant.go

@@ -4,22 +4,27 @@ import (
 	"github.com/z7zmey/php-parser/node"
 )
 
+// MagicConstant node
 type MagicConstant struct {
 	Value string
 }
 
+// NewMagicConstant node constuctor
 func NewMagicConstant(Value string) *MagicConstant {
 	return &MagicConstant{
 		Value,
 	}
 }
 
+// Attributes returns node attributes as map
 func (n *MagicConstant) Attributes() map[string]interface{} {
 	return map[string]interface{}{
 		"Value": n.Value,
 	}
 }
 
+// Walk traverses nodes
+// Walk is invoked recursively until v.EnterNode returns true
 func (n *MagicConstant) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/scalar/string.go

@@ -4,22 +4,27 @@ import (
 	"github.com/z7zmey/php-parser/node"
 )
 
+// String node
 type String struct {
 	Value string
 }
 
+// NewString node constuctor
 func NewString(Value string) *String {
 	return &String{
 		Value,
 	}
 }
 
+// Attributes returns node attributes as map
 func (n *String) Attributes() map[string]interface{} {
 	return map[string]interface{}{
 		"Value": n.Value,
 	}
 }
 
+// Walk traverses nodes
+// Walk is invoked recursively until v.EnterNode returns true
 func (n *String) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return