Migrate leak related structs to leak package

leak/object.go

@@ -0,0 +1,26 @@
+package leak
+
+import "encoding/json"
+
+//go:generate easyjson -all object.go
+
+// NewObject returns a new *Object instance with it's attributes populated from
+// the given input JSON data.
+func NewObject(inputJSON []byte) (*Object, error) {
+	var obj Object
+	err := json.Unmarshal(inputJSON, &obj)
+
+	return &obj, err
+}
+
+// Object is a minimal representation of a Ruby heap object as exported from
+// Ruby via `ObjectSpace.dump_all`.
+type Object struct {
+	Address string `json:"address"`
+	Type    string `json:"type"`
+}
+
+// Index returns a unique index for the given Object.
+func (s *Object) Index() string {
+	return s.Address + ":" + s.Type
+}