restructure project

internal/object/bool.go

@@ -0,0 +1,43 @@
+package object
+
+import (
+	"fmt"
+)
+
+type Boolean struct {
+	Value bool
+}
+
+func (b *Boolean) Bool() bool {
+	return b.Value
+}
+
+func (b *Boolean) Type() ObjectType {
+	return BOOLEAN_OBJ
+}
+
+func (b *Boolean) Inspect() string {
+	return fmt.Sprintf("%t", b.Value)
+}
+
+func (b *Boolean) Clone() Object {
+	return &Boolean{Value: b.Value}
+}
+
+func (b *Boolean) String() string {
+	return b.Inspect()
+}
+
+func (b *Boolean) Int() int {
+	if b.Value {
+		return 1
+	}
+	return 0
+}
+
+func (b *Boolean) Compare(other Object) int {
+	if obj, ok := other.(*Boolean); ok {
+		return b.Int() - obj.Int()
+	}
+	return 1
+}