node position

node/argument.go

@@ -3,6 +3,7 @@ package node
 type Argument struct {
 	name       string
 	attributes map[string]interface{}
+	position   *Position
 	expr       Node
 	variadic   bool
 }
@@ -13,6 +14,7 @@ func NewArgument(expression Node, variadic bool) Node {
 		map[string]interface{}{
 			"variadic": variadic,
 		},
+		nil,
 		expression,
 		variadic,
 	}
@@ -34,6 +36,15 @@ func (n Argument) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Argument) Position() *Position {
+	return n.position
+}
+
+func (n Argument) SetPosition(p *Position) Node {
+	n.position = p
+	return n
+}
+
 func (n Argument) Walk(v Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/array.go

@@ -7,6 +7,7 @@ import (
 type Array struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	items      []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewArray(items []node.Node) node.Node {
 	return Array{
 		"Array",
 		map[string]interface{}{},
+		nil,
 		items,
 	}
 }
@@ -34,6 +36,15 @@ func (n Array) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Array) Position() *node.Position {
+	return n.position
+}
+
+func (n Array) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Array) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/array_dim_fetch.go

@@ -7,6 +7,7 @@ import (
 type ArrayDimFetch struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 	dim        node.Node
 }
@@ -15,6 +16,7 @@ func NewArrayDimFetch(variable node.Node, dim node.Node) node.Node {
 	return ArrayDimFetch{
 		"ArrayDimFetch",
 		map[string]interface{}{},
+		nil,
 		variable,
 		dim,
 	}
@@ -36,6 +38,15 @@ func (n ArrayDimFetch) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ArrayDimFetch) Position() *node.Position {
+	return n.position
+}
+
+func (n ArrayDimFetch) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ArrayDimFetch) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/array_item.go

@@ -7,6 +7,7 @@ import (
 type ArrayItem struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	key        node.Node
 	val        node.Node
 }
@@ -17,6 +18,7 @@ func NewArrayItem(key node.Node, val node.Node, byRef bool) node.Node {
 		map[string]interface{}{
 			"byRef": byRef,
 		},
+		nil,
 		key,
 		val,
 	}
@@ -38,6 +40,15 @@ func (n ArrayItem) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ArrayItem) Position() *node.Position {
+	return n.position
+}
+
+func (n ArrayItem) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ArrayItem) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/assign.go

@@ -13,6 +13,7 @@ func NewAssign(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"Assign",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Assign) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Assign) Position() *node.Position {
+	return n.position
+}
+
+func (n Assign) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Assign) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/assign_op.go

@@ -7,6 +7,7 @@ import (
 type AssignOp struct {
 	name       string
 	attributes map[string]interface{}
+	position   *node.Position
 	variable   node.Node
 	expression node.Node
 }

node/expr/assign_op/assign_ref.go

@@ -13,6 +13,7 @@ func NewAssignRef(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignRef",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n AssignRef) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n AssignRef) Position() *node.Position {
+	return n.position
+}
+
+func (n AssignRef) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n AssignRef) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/bitwise_and.go

@@ -13,6 +13,7 @@ func NewBitwiseAnd(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignBitwiseAnd",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n BitwiseAnd) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseAnd) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseAnd) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseAnd) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/bitwise_or.go

@@ -13,6 +13,7 @@ func NewBitwiseOr(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignBitwiseOr",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n BitwiseOr) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseOr) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseOr) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseOr) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/bitwise_xor.go

@@ -13,6 +13,7 @@ func NewBitwiseXor(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignBitwiseXor",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -31,6 +32,15 @@ func (n BitwiseXor) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseXor) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseXor) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseXor) Name() string {
 	return "BitwiseXor"
 }

node/expr/assign_op/concat.go

@@ -13,6 +13,7 @@ func NewConcat(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignConcat",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Concat) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Concat) Position() *node.Position {
+	return n.position
+}
+
+func (n Concat) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Concat) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/div.go

@@ -13,6 +13,7 @@ func NewDiv(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignDiv",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Div) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Div) Position() *node.Position {
+	return n.position
+}
+
+func (n Div) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Div) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/minus.go

@@ -13,6 +13,7 @@ func NewMinus(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignMinus",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Minus) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Minus) Position() *node.Position {
+	return n.position
+}
+
+func (n Minus) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Minus) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/mod.go

@@ -13,6 +13,7 @@ func NewMod(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignMod",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Mod) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Mod) Position() *node.Position {
+	return n.position
+}
+
+func (n Mod) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Mod) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/mul.go

@@ -13,6 +13,7 @@ func NewMul(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignMul",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Mul) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Mul) Position() *node.Position {
+	return n.position
+}
+
+func (n Mul) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Mul) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/plus.go

@@ -13,6 +13,7 @@ func NewPlus(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignPlus",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Plus) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Plus) Position() *node.Position {
+	return n.position
+}
+
+func (n Plus) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Plus) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/pow.go

@@ -13,6 +13,7 @@ func NewPow(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignPow",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Pow) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Pow) Position() *node.Position {
+	return n.position
+}
+
+func (n Pow) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Pow) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/shift_left.go

@@ -13,6 +13,7 @@ func NewShiftLeft(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignShiftLeft",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n ShiftLeft) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShiftLeft) Position() *node.Position {
+	return n.position
+}
+
+func (n ShiftLeft) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShiftLeft) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/assign_op/shift_right.go

@@ -13,6 +13,7 @@ func NewShiftRight(variable node.Node, expression node.Node) node.Node {
 		AssignOp{
 			"AssignShiftRight",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n ShiftRight) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShiftRight) Position() *node.Position {
+	return n.position
+}
+
+func (n ShiftRight) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShiftRight) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/binary_op.go

@@ -7,6 +7,7 @@ import (
 type BinaryOp struct {
 	name       string
 	attributes map[string]interface{}
+	position   *node.Position
 	left       node.Node
 	right      node.Node
 }

node/expr/binary_op/bitwise_and.go

@@ -13,6 +13,7 @@ func NewBitwiseAnd(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryBitwiseAnd",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n BitwiseAnd) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseAnd) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseAnd) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseAnd) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/bitwise_or.go

@@ -13,6 +13,7 @@ func NewBitwiseOr(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryBitwiseOr",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -31,6 +32,15 @@ func (n BitwiseOr) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseOr) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseOr) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseOr) Name() string {
 	return "BitwiseOr"
 }

node/expr/binary_op/bitwise_xor.go

@@ -13,6 +13,7 @@ func NewBitwiseXor(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryBitwiseXor",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -31,6 +32,15 @@ func (n BitwiseXor) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseXor) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseXor) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseXor) Name() string {
 	return "BitwiseXor"
 }

node/expr/binary_op/boolean_and.go

@@ -13,6 +13,7 @@ func NewBooleanAnd(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryBooleanAnd",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n BooleanAnd) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BooleanAnd) Position() *node.Position {
+	return n.position
+}
+
+func (n BooleanAnd) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BooleanAnd) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/boolean_or.go

@@ -13,6 +13,7 @@ func NewBooleanOr(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryBooleanOr",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n BooleanOr) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BooleanOr) Position() *node.Position {
+	return n.position
+}
+
+func (n BooleanOr) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BooleanOr) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/coalesce.go

@@ -13,6 +13,7 @@ func NewCoalesce(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryCoalesce",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Coalesce) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Coalesce) Position() *node.Position {
+	return n.position
+}
+
+func (n Coalesce) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Coalesce) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/concat.go

@@ -13,6 +13,7 @@ func NewConcat(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryConcat",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Concat) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Concat) Position() *node.Position {
+	return n.position
+}
+
+func (n Concat) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Concat) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/div.go

@@ -13,6 +13,7 @@ func NewDiv(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryDiv",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Div) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Div) Position() *node.Position {
+	return n.position
+}
+
+func (n Div) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Div) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/equal.go

@@ -13,6 +13,7 @@ func NewEqual(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryEqual",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Equal) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Equal) Position() *node.Position {
+	return n.position
+}
+
+func (n Equal) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Equal) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/greater.go

@@ -13,6 +13,7 @@ func NewGreater(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryGreater",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Greater) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Greater) Position() *node.Position {
+	return n.position
+}
+
+func (n Greater) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Greater) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/greater_or_equal.go

@@ -13,6 +13,7 @@ func NewGreaterOrEqual(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryGreaterOrEqual",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n GreaterOrEqual) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n GreaterOrEqual) Position() *node.Position {
+	return n.position
+}
+
+func (n GreaterOrEqual) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n GreaterOrEqual) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/identical.go

@@ -13,6 +13,7 @@ func NewIdentical(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryIdentical",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Identical) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Identical) Position() *node.Position {
+	return n.position
+}
+
+func (n Identical) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Identical) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/logical_and.go

@@ -13,6 +13,7 @@ func NewLogicalAnd(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryLogicalAnd",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n LogicalAnd) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n LogicalAnd) Position() *node.Position {
+	return n.position
+}
+
+func (n LogicalAnd) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n LogicalAnd) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/logical_or.go

@@ -13,6 +13,7 @@ func NewLogicalOr(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryLogicalOr",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n LogicalOr) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n LogicalOr) Position() *node.Position {
+	return n.position
+}
+
+func (n LogicalOr) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n LogicalOr) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/logical_xor.go

@@ -13,6 +13,7 @@ func NewLogicalXor(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryLogicalXor",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n LogicalXor) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n LogicalXor) Position() *node.Position {
+	return n.position
+}
+
+func (n LogicalXor) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n LogicalXor) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/minus.go

@@ -13,6 +13,7 @@ func NewMinus(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryMinus",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Minus) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Minus) Position() *node.Position {
+	return n.position
+}
+
+func (n Minus) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Minus) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/mod.go

@@ -13,6 +13,7 @@ func NewMod(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryMod",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Mod) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Mod) Position() *node.Position {
+	return n.position
+}
+
+func (n Mod) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Mod) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/mul.go

@@ -13,6 +13,7 @@ func NewMul(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryMul",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Mul) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Mul) Position() *node.Position {
+	return n.position
+}
+
+func (n Mul) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Mul) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/not_equal.go

@@ -13,6 +13,7 @@ func NewNotEqual(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryNotEqual",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n NotEqual) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n NotEqual) Position() *node.Position {
+	return n.position
+}
+
+func (n NotEqual) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n NotEqual) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/not_identical.go

@@ -13,6 +13,7 @@ func NewNotIdentical(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryNotIdentical",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n NotIdentical) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n NotIdentical) Position() *node.Position {
+	return n.position
+}
+
+func (n NotIdentical) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n NotIdentical) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/plus.go

@@ -13,6 +13,7 @@ func NewPlus(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryPlus",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Plus) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Plus) Position() *node.Position {
+	return n.position
+}
+
+func (n Plus) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Plus) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/pow.go

@@ -13,6 +13,7 @@ func NewPow(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryPow",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Pow) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Pow) Position() *node.Position {
+	return n.position
+}
+
+func (n Pow) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Pow) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/shift_left.go

@@ -13,6 +13,7 @@ func NewShiftLeft(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryShiftLeft",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n ShiftLeft) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShiftLeft) Position() *node.Position {
+	return n.position
+}
+
+func (n ShiftLeft) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShiftLeft) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/shift_right.go

@@ -13,6 +13,7 @@ func NewShiftRight(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinaryShiftRight",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n ShiftRight) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShiftRight) Position() *node.Position {
+	return n.position
+}
+
+func (n ShiftRight) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShiftRight) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/smaller.go

@@ -13,6 +13,7 @@ func NewSmaller(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinarySmaller",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Smaller) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Smaller) Position() *node.Position {
+	return n.position
+}
+
+func (n Smaller) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Smaller) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/smaller_or_equal.go

@@ -13,6 +13,7 @@ func NewSmallerOrEqual(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinarySmallerOrEqual",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n SmallerOrEqual) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n SmallerOrEqual) Position() *node.Position {
+	return n.position
+}
+
+func (n SmallerOrEqual) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n SmallerOrEqual) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/binary_op/spaceship.go

@@ -13,6 +13,7 @@ func NewSpaceship(variable node.Node, expression node.Node) node.Node {
 		BinaryOp{
 			"BinarySpaceship",
 			map[string]interface{}{},
+			nil,
 			variable,
 			expression,
 		},
@@ -35,6 +36,15 @@ func (n Spaceship) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Spaceship) Position() *node.Position {
+	return n.position
+}
+
+func (n Spaceship) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Spaceship) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/bitwise_not.go

@@ -7,6 +7,7 @@ import (
 type BitwiseNot struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewBitwiseNot(expression node.Node) node.Node {
 	return BitwiseNot{
 		"BitwiseNot",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n BitwiseNot) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BitwiseNot) Position() *node.Position {
+	return n.position
+}
+
+func (n BitwiseNot) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BitwiseNot) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/boolean_not.go

@@ -7,6 +7,7 @@ import (
 type BooleanNot struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewBooleanNot(expression node.Node) node.Node {
 	return BooleanNot{
 		"BooleanNot",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n BooleanNot) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n BooleanNot) Position() *node.Position {
+	return n.position
+}
+
+func (n BooleanNot) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n BooleanNot) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast.go

@@ -7,5 +7,6 @@ import (
 type Cast struct {
 	name       string
 	attributes map[string]interface{}
+	position   *node.Position
 	expr       node.Node
 }

node/expr/cast/cast_array.go

@@ -13,6 +13,7 @@ func NewCastArray(expr node.Node) node.Node {
 		Cast{
 			"CastArray",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastArray) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastArray) Position() *node.Position {
+	return n.position
+}
+
+func (n CastArray) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastArray) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast_bool.go

@@ -13,6 +13,7 @@ func NewCastBool(expr node.Node) node.Node {
 		Cast{
 			"CastBool",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastBool) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastBool) Position() *node.Position {
+	return n.position
+}
+
+func (n CastBool) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastBool) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast_double.go

@@ -13,6 +13,7 @@ func NewCastDouble(expr node.Node) node.Node {
 		Cast{
 			"CastDouble",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastDouble) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastDouble) Position() *node.Position {
+	return n.position
+}
+
+func (n CastDouble) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastDouble) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast_int.go

@@ -13,6 +13,7 @@ func NewCastInt(expr node.Node) node.Node {
 		Cast{
 			"CastInt",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastInt) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastInt) Position() *node.Position {
+	return n.position
+}
+
+func (n CastInt) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastInt) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast_object.go

@@ -13,6 +13,7 @@ func NewCastObject(expr node.Node) node.Node {
 		Cast{
 			"CastObject",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastObject) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastObject) Position() *node.Position {
+	return n.position
+}
+
+func (n CastObject) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastObject) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast_string.go

@@ -13,6 +13,7 @@ func NewCastString(expr node.Node) node.Node {
 		Cast{
 			"CastString",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastString) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastString) Position() *node.Position {
+	return n.position
+}
+
+func (n CastString) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastString) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/cast/cast_unset.go

@@ -13,6 +13,7 @@ func NewCastUnset(expr node.Node) node.Node {
 		Cast{
 			"CastUnset",
 			map[string]interface{}{},
+			nil,
 			expr,
 		},
 	}
@@ -34,6 +35,15 @@ func (n CastUnset) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n CastUnset) Position() *node.Position {
+	return n.position
+}
+
+func (n CastUnset) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n CastUnset) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/class_const_fetch.go

@@ -16,6 +16,15 @@ func (n ClassConstFetch) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ClassConstFetch) Position() *node.Position {
+	return n.position
+}
+
+func (n ClassConstFetch) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ClassConstFetch) Name() string {
 	return "ClassConstFetch"
 }
@@ -23,6 +32,7 @@ func (n ClassConstFetch) Name() string {
 type ClassConstFetch struct {
 	name         string
 	attributes   map[string]interface{}
+	position *node.Position
 	class        node.Node
 	constantName node.Node
 }
@@ -31,6 +41,7 @@ func NewClassConstFetch(class node.Node, constantName node.Node) node.Node {
 	return ClassConstFetch{
 		"ClassConstFetch",
 		map[string]interface{}{},
+		nil,
 		class,
 		constantName,
 	}

node/expr/clone.go

@@ -7,6 +7,7 @@ import (
 type Clone struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewClone(expression node.Node) node.Node {
 	return Clone{
 		"Clone",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n Clone) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Clone) Position() *node.Position {
+	return n.position
+}
+
+func (n Clone) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Clone) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/closure.go

@@ -7,6 +7,7 @@ import (
 type Closure struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	params     []node.Node
 	uses       []node.Node
 	returnType node.Node
@@ -20,6 +21,7 @@ func NewClosure(params []node.Node, uses []node.Node, returnType node.Node, stmt
 			"isReturnRef": isReturnRef,
 			"isStatic":    isStatic,
 		},
+		nil,
 		params,
 		uses,
 		returnType,
@@ -43,6 +45,15 @@ func (n Closure) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Closure) Position() *node.Position {
+	return n.position
+}
+
+func (n Closure) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Closure) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/closure_use.go

@@ -7,6 +7,7 @@ import (
 type ClusureUse struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 }
 
@@ -16,6 +17,7 @@ func NewClusureUse(variable node.Node, byRef bool) node.Node {
 		map[string]interface{}{
 			"byRef": byRef,
 		},
+		nil,
 		variable,
 	}
 }
@@ -36,6 +38,15 @@ func (n ClusureUse) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ClusureUse) Position() *node.Position {
+	return n.position
+}
+
+func (n ClusureUse) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ClusureUse) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/const_fetch.go

@@ -7,6 +7,7 @@ import (
 type ConstFetch struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	constant   node.Node
 }
 
@@ -14,6 +15,7 @@ func NewConstFetch(constant node.Node) node.Node {
 	return ConstFetch{
 		"ConstFetch",
 		map[string]interface{}{},
+		nil,
 		constant,
 	}
 }
@@ -34,6 +36,15 @@ func (n ConstFetch) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ConstFetch) Position() *node.Position {
+	return n.position
+}
+
+func (n ConstFetch) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ConstFetch) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/empty.go

@@ -7,6 +7,7 @@ import (
 type Empty struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewEmpty(expression node.Node) node.Node {
 	return Empty{
 		"Empty",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n Empty) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Empty) Position() *node.Position {
+	return n.position
+}
+
+func (n Empty) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Empty) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/error_suppress.go

@@ -7,6 +7,7 @@ import (
 type ErrorSuppress struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewErrorSuppress(expression node.Node) node.Node {
 	return ErrorSuppress{
 		"ErrorSuppress",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n ErrorSuppress) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ErrorSuppress) Position() *node.Position {
+	return n.position
+}
+
+func (n ErrorSuppress) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ErrorSuppress) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/eval.go

@@ -7,6 +7,7 @@ import (
 type Eval struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewEval(expression node.Node) node.Node {
 	return Eval{
 		"Eval",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n Eval) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Eval) Position() *node.Position {
+	return n.position
+}
+
+func (n Eval) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Eval) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/exit.go

@@ -7,6 +7,7 @@ import (
 type Exit struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -16,6 +17,7 @@ func NewExit(expr node.Node, isDie bool) node.Node {
 		map[string]interface{}{
 			"isDie": isDie,
 		},
+		nil,
 		expr,
 	}
 }
@@ -36,6 +38,15 @@ func (n Exit) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Exit) Position() *node.Position {
+	return n.position
+}
+
+func (n Exit) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Exit) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/function_call.go

@@ -7,6 +7,7 @@ import (
 type FunctionCall struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	function   node.Node
 	arguments  []node.Node
 }
@@ -15,6 +16,7 @@ func NewFunctionCall(function node.Node, arguments []node.Node) node.Node {
 	return FunctionCall{
 		"FunctionCall",
 		map[string]interface{}{},
+		nil,
 		function,
 		arguments,
 	}
@@ -36,6 +38,15 @@ func (n FunctionCall) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n FunctionCall) Position() *node.Position {
+	return n.position
+}
+
+func (n FunctionCall) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n FunctionCall) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/include.go

@@ -7,6 +7,7 @@ import (
 type Include struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewInclude(expression node.Node) node.Node {
 	return Include{
 		"Include",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n Include) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Include) Position() *node.Position {
+	return n.position
+}
+
+func (n Include) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Include) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/include_once.go

@@ -7,6 +7,7 @@ import (
 type IncludeOnce struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewIncludeOnce(expression node.Node) node.Node {
 	return IncludeOnce{
 		"IncludeOnce",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n IncludeOnce) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n IncludeOnce) Position() *node.Position {
+	return n.position
+}
+
+func (n IncludeOnce) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n IncludeOnce) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/instance_of.go

@@ -7,6 +7,7 @@ import (
 type InstanceOf struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 	class      node.Node
 }
@@ -15,6 +16,7 @@ func NewInstanceOf(expr node.Node, class node.Node) node.Node {
 	return InstanceOf{
 		"InstanceOf",
 		map[string]interface{}{},
+		nil,
 		expr,
 		class,
 	}
@@ -36,6 +38,15 @@ func (n InstanceOf) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n InstanceOf) Position() *node.Position {
+	return n.position
+}
+
+func (n InstanceOf) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n InstanceOf) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/isset.go

@@ -7,6 +7,7 @@ import (
 type Isset struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variables  []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewIsset(variables []node.Node) node.Node {
 	return Isset{
 		"Isset",
 		map[string]interface{}{},
+		nil,
 		variables,
 	}
 }
@@ -34,6 +36,15 @@ func (n Isset) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Isset) Position() *node.Position {
+	return n.position
+}
+
+func (n Isset) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Isset) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/list.go

@@ -7,6 +7,7 @@ import (
 type List struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	items      []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewList(items []node.Node) node.Node {
 	return List{
 		"List",
 		map[string]interface{}{},
+		nil,
 		items,
 	}
 }
@@ -34,6 +36,15 @@ func (n List) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n List) Position() *node.Position {
+	return n.position
+}
+
+func (n List) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n List) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/method_call.go

@@ -7,6 +7,7 @@ import (
 type MethodCall struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 	method     node.Node
 	arguments  []node.Node
@@ -16,6 +17,7 @@ func NewMethodCall(variable node.Node, method node.Node, arguments []node.Node)
 	return MethodCall{
 		"MethodCall",
 		map[string]interface{}{},
+		nil,
 		variable,
 		method,
 		arguments,
@@ -38,6 +40,15 @@ func (n MethodCall) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n MethodCall) Position() *node.Position {
+	return n.position
+}
+
+func (n MethodCall) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n MethodCall) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/new.go

@@ -7,6 +7,7 @@ import (
 type New struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	class      node.Node
 	arguments  []node.Node
 }
@@ -15,6 +16,7 @@ func NewNew(class node.Node, arguments []node.Node) node.Node {
 	return New{
 		"New",
 		map[string]interface{}{},
+		nil,
 		class,
 		arguments,
 	}
@@ -36,6 +38,15 @@ func (n New) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n New) Position() *node.Position {
+	return n.position
+}
+
+func (n New) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n New) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/post_dec.go

@@ -7,6 +7,7 @@ import (
 type PostDec struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 }
 
@@ -14,6 +15,7 @@ func NewPostDec(variable node.Node) node.Node {
 	return PostDec{
 		"PostDec",
 		map[string]interface{}{},
+		nil,
 		variable,
 	}
 }
@@ -34,6 +36,15 @@ func (n PostDec) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n PostDec) Position() *node.Position {
+	return n.position
+}
+
+func (n PostDec) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n PostDec) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/post_inc.go

@@ -7,6 +7,7 @@ import (
 type PostInc struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 }
 
@@ -14,6 +15,7 @@ func NewPostInc(variable node.Node) node.Node {
 	return PostInc{
 		"PostInc",
 		map[string]interface{}{},
+		nil,
 		variable,
 	}
 }
@@ -34,6 +36,15 @@ func (n PostInc) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n PostInc) Position() *node.Position {
+	return n.position
+}
+
+func (n PostInc) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n PostInc) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/pre_dec.go

@@ -7,6 +7,7 @@ import (
 type PreDec struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 }
 
@@ -14,6 +15,7 @@ func NewPreDec(variable node.Node) node.Node {
 	return PreDec{
 		"PreDec",
 		map[string]interface{}{},
+		nil,
 		variable,
 	}
 }
@@ -34,6 +36,15 @@ func (n PreDec) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n PreDec) Position() *node.Position {
+	return n.position
+}
+
+func (n PreDec) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n PreDec) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/pre_inc.go

@@ -7,6 +7,7 @@ import (
 type PreInc struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 }
 
@@ -14,6 +15,7 @@ func NewPreInc(variable node.Node) node.Node {
 	return PreInc{
 		"PreInc",
 		map[string]interface{}{},
+		nil,
 		variable,
 	}
 }
@@ -34,6 +36,15 @@ func (n PreInc) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n PreInc) Position() *node.Position {
+	return n.position
+}
+
+func (n PreInc) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n PreInc) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/print.go

@@ -7,6 +7,7 @@ import (
 type Print struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewPrint(expression node.Node) node.Node {
 	return Print{
 		"Print",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n Print) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Print) Position() *node.Position {
+	return n.position
+}
+
+func (n Print) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Print) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/property_fetch.go

@@ -7,6 +7,7 @@ import (
 type PropertyFetch struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	variable   node.Node
 	property   node.Node
 }
@@ -15,6 +16,7 @@ func NewPropertyFetch(variable node.Node, property node.Node) node.Node {
 	return PropertyFetch{
 		"PropertyFetch",
 		map[string]interface{}{},
+		nil,
 		variable,
 		property,
 	}
@@ -36,6 +38,15 @@ func (n PropertyFetch) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n PropertyFetch) Position() *node.Position {
+	return n.position
+}
+
+func (n PropertyFetch) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n PropertyFetch) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/require.go

@@ -7,6 +7,7 @@ import (
 type Require struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewRequire(expression node.Node) node.Node {
 	return Require{
 		"Require",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n Require) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Require) Position() *node.Position {
+	return n.position
+}
+
+func (n Require) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Require) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/require_once.go

@@ -7,6 +7,7 @@ import (
 type RequireOnce struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewRequireOnce(expression node.Node) node.Node {
 	return RequireOnce{
 		"RequireOnce",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n RequireOnce) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n RequireOnce) Position() *node.Position {
+	return n.position
+}
+
+func (n RequireOnce) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n RequireOnce) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/shell_exec.go

@@ -7,6 +7,7 @@ import (
 type ShellExec struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	parts      []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewShellExec(parts []node.Node) node.Node {
 	return ShellExec{
 		"ShellExec",
 		map[string]interface{}{},
+		nil,
 		parts,
 	}
 }
@@ -34,6 +36,15 @@ func (n ShellExec) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShellExec) Position() *node.Position {
+	return n.position
+}
+
+func (n ShellExec) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShellExec) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/short_array.go

@@ -7,6 +7,7 @@ import (
 type ShortArray struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	items      []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewShortArray(items []node.Node) node.Node {
 	return ShortArray{
 		"ShortArray",
 		map[string]interface{}{},
+		nil,
 		items,
 	}
 }
@@ -34,6 +36,15 @@ func (n ShortArray) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShortArray) Position() *node.Position {
+	return n.position
+}
+
+func (n ShortArray) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShortArray) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/short_list.go

@@ -7,6 +7,7 @@ import (
 type ShortList struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	items      []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewShortList(items []node.Node) node.Node {
 	return ShortList{
 		"ShortList",
 		map[string]interface{}{},
+		nil,
 		items,
 	}
 }
@@ -34,6 +36,15 @@ func (n ShortList) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n ShortList) Position() *node.Position {
+	return n.position
+}
+
+func (n ShortList) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n ShortList) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/static_call.go

@@ -7,6 +7,7 @@ import (
 type StaticCall struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	class      node.Node
 	call       node.Node
 	arguments  []node.Node
@@ -16,6 +17,7 @@ func NewStaticCall(class node.Node, call node.Node, arguments []node.Node) node.
 	return StaticCall{
 		"StaticCall",
 		map[string]interface{}{},
+		nil,
 		class,
 		call,
 		arguments,
@@ -38,6 +40,15 @@ func (n StaticCall) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n StaticCall) Position() *node.Position {
+	return n.position
+}
+
+func (n StaticCall) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n StaticCall) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/static_property_fetch.go

@@ -7,6 +7,7 @@ import (
 type StaticPropertyFetch struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	class      node.Node
 	property   node.Node
 }
@@ -15,6 +16,7 @@ func NewStaticPropertyFetch(class node.Node, property node.Node) node.Node {
 	return StaticPropertyFetch{
 		"StaticPropertyFetch",
 		map[string]interface{}{},
+		nil,
 		class,
 		property,
 	}
@@ -36,6 +38,15 @@ func (n StaticPropertyFetch) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n StaticPropertyFetch) Position() *node.Position {
+	return n.position
+}
+
+func (n StaticPropertyFetch) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n StaticPropertyFetch) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/ternary.go

@@ -7,6 +7,7 @@ import (
 type Ternary struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	condition  node.Node
 	ifTrue     node.Node
 	ifFalse    node.Node
@@ -16,6 +17,7 @@ func NewTernary(condition node.Node, ifTrue node.Node, ifFalse node.Node) node.N
 	return Ternary{
 		"Ternary",
 		map[string]interface{}{},
+		nil,
 		condition,
 		ifTrue,
 		ifFalse,
@@ -38,6 +40,15 @@ func (n Ternary) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Ternary) Position() *node.Position {
+	return n.position
+}
+
+func (n Ternary) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Ternary) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/unary_minus.go

@@ -7,6 +7,7 @@ import (
 type UnaryMinus struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewUnaryMinus(expression node.Node) node.Node {
 	return UnaryMinus{
 		"UnaryMinus",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n UnaryMinus) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n UnaryMinus) Position() *node.Position {
+	return n.position
+}
+
+func (n UnaryMinus) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n UnaryMinus) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/unary_plus.go

@@ -7,6 +7,7 @@ import (
 type UnaryPlus struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewUnaryPlus(expression node.Node) node.Node {
 	return UnaryPlus{
 		"UnaryPlus",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n UnaryPlus) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n UnaryPlus) Position() *node.Position {
+	return n.position
+}
+
+func (n UnaryPlus) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n UnaryPlus) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/variable.go

@@ -7,6 +7,7 @@ import (
 type Variable struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	varName    node.Node
 }
 
@@ -14,6 +15,7 @@ func NewVariable(varName node.Node) node.Node {
 	return Variable{
 		"Variable",
 		map[string]interface{}{},
+		nil,
 		varName,
 	}
 }
@@ -34,6 +36,15 @@ func (n Variable) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Variable) Position() *node.Position {
+	return n.position
+}
+
+func (n Variable) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Variable) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/yield.go

@@ -7,6 +7,7 @@ import (
 type Yield struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	key        node.Node
 	value      node.Node
 }
@@ -15,6 +16,7 @@ func NewYield(key node.Node, value node.Node) node.Node {
 	return Yield{
 		"Yield",
 		map[string]interface{}{},
+		nil,
 		key,
 		value,
 	}
@@ -36,6 +38,15 @@ func (n Yield) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Yield) Position() *node.Position {
+	return n.position
+}
+
+func (n Yield) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n Yield) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/expr/yield_from.go

@@ -7,6 +7,7 @@ import (
 type YieldFrom struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	expr       node.Node
 }
 
@@ -14,6 +15,7 @@ func NewYieldFrom(expression node.Node) node.Node {
 	return YieldFrom{
 		"YieldFrom",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -34,6 +36,15 @@ func (n YieldFrom) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n YieldFrom) Position() *node.Position {
+	return n.position
+}
+
+func (n YieldFrom) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n YieldFrom) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/identifier.go

@@ -7,6 +7,7 @@ import (
 type Identifier struct {
 	name       string
 	attributes map[string]interface{}
+	position   *Position
 }
 
 func NewIdentifier(token token.Token) Node {
@@ -15,6 +16,7 @@ func NewIdentifier(token token.Token) Node {
 		map[string]interface{}{
 			"value": token.Value,
 		},
+		nil,
 	}
 }
 
@@ -34,6 +36,15 @@ func (n Identifier) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Identifier) Position() *Position {
+	return n.position
+}
+
+func (n Identifier) SetPosition(p *Position) Node {
+	n.position = p
+	return n
+}
+
 func (n Identifier) Walk(v Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/name/fully_qualified.go

@@ -13,6 +13,7 @@ func NewFullyQualified(parts []node.Node) node.Node {
 		NameNode{
 			"FullyQualifiedName",
 			map[string]interface{}{},
+			nil,
 			parts,
 		},
 	}

node/name/name.go

@@ -7,6 +7,7 @@ import (
 type NameNode struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 	parts      []node.Node
 }
 
@@ -14,6 +15,7 @@ func NewName(parts []node.Node) node.Node {
 	return NameNode{
 		"Name",
 		map[string]interface{}{},
+		nil,
 		parts,
 	}
 }
@@ -34,6 +36,15 @@ func (n NameNode) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n NameNode) Position() *node.Position {
+	return n.position
+}
+
+func (n NameNode) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n NameNode) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/name/name_part.go

@@ -7,6 +7,7 @@ import (
 type NamePart struct {
 	name       string
 	attributes map[string]interface{}
+	position *node.Position
 }
 
 func NewNamePart(value string) node.Node {
@@ -15,6 +16,7 @@ func NewNamePart(value string) node.Node {
 		map[string]interface{}{
 			"value": value,
 		},
+		nil,
 	}
 }
 
@@ -34,6 +36,15 @@ func (n NamePart) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n NamePart) Position() *node.Position {
+	return n.position
+}
+
+func (n NamePart) SetPosition(p *node.Position) node.Node {
+	n.position = p
+	return n
+}
+
 func (n NamePart) Walk(v node.Visitor) {
 	if v.EnterNode(n) == false {
 		return

node/name/relative.go

@@ -13,6 +13,7 @@ func NewRelative(parts []node.Node) node.Node {
 		NameNode{
 			"RelativeName",
 			map[string]interface{}{},
+			nil,
 			parts,
 		},
 	}

node/node.go

@@ -1,13 +1,24 @@
 package node
 
+type Node interface {
+	Attributer
+	Positioner
+	Name() string
+	Walk(v Visitor)
+}
+
 type Attributer interface {
 	Attributes() map[string]interface{}
 	Attribute(key string) interface{}
 	SetAttribute(key string, value interface{})
 }
 
-type Node interface {
-	Attributer
-	Name() string
-	Walk(v Visitor)
+type Positioner interface {
+	Position() *Position
+	SetPosition(p *Position) Node
+}
+
+type Position struct {
+	StartLine int
+	EndLine   int
 }

node/nullable.go

@@ -3,6 +3,7 @@ package node
 type Nullable struct {
 	name       string
 	attributes map[string]interface{}
+	position   *Position
 	expr       Node
 }
 
@@ -10,6 +11,7 @@ func NewNullable(expression Node) Node {
 	return Nullable{
 		"Nullable",
 		map[string]interface{}{},
+		nil,
 		expression,
 	}
 }
@@ -30,6 +32,15 @@ func (n Nullable) SetAttribute(key string, value interface{}) {
 	n.attributes[key] = value
 }
 
+func (n Nullable) Position() *Position {
+	return n.position
+}
+
+func (n Nullable) SetPosition(p *Position) Node {
+	n.position = p
+	return n
+}
+
 func (n Nullable) Walk(v Visitor) {
 	if v.EnterNode(n) == false {
 		return