separate number into float and integer

core/nodes.go

@@ -2,6 +2,7 @@ package core
 
 import (
 	"fmt"
+	"math/big"
 	"strconv"
 	"strings"
 )
@@ -21,7 +22,8 @@ type Boundary interface {
 
 const (
 	StringNodeType NodeType = iota
-	NumberNodeType
+	FloatNodeType
+	IntegerNodeType
 	ReferenceNodeType
 	BooleanNodeType
 	NilNodeType
@@ -43,8 +45,10 @@ func (n NodeType) String() string {
 	switch n {
 	case StringNodeType:
 		return "String"
-	case NumberNodeType:
-		return "Number"
+	case FloatNodeType:
+		return "Float"
+	case IntegerNodeType:
+		return "Integer"
 	case ReferenceNodeType:
 		return "Reference"
 	case BinaryNodeType:
@@ -120,22 +124,41 @@ func (n StringNode) Bounds() (Pos, Pos) {
 	return n.start, n.end
 }
 
-type NumberNode struct {
+type FloatNode struct {
 	value float64
 
 	start Pos
 	end   Pos
 }
 
-func (n NumberNode) Type() NodeType {
-	return NumberNodeType
+func (n FloatNode) Type() NodeType {
+	return FloatNodeType
 }
 
-func (n NumberNode) String() string {
-	return strconv.FormatFloat(n.value, 'g', -1, NumberSize)
+func (n FloatNode) String() string {
+	return strconv.FormatFloat(n.value, 'g', -1, FloatSize)
 }
 
-func (n NumberNode) Bounds() (Pos, Pos) {
+func (n FloatNode) Bounds() (Pos, Pos) {
+	return n.start, n.end
+}
+
+type IntegerNode struct {
+	value *big.Int
+
+	start Pos
+	end   Pos
+}
+
+func (n IntegerNode) Type() NodeType {
+	return IntegerNodeType
+}
+
+func (n IntegerNode) String() string {
+	return n.value.String()
+}
+
+func (n IntegerNode) Bounds() (Pos, Pos) {
 	return n.start, n.end
 }