reflection: add initial New() validating type and triggering a scan

Signed-off-by: Alejandro Mery <amery@jpi.io>

reflection/reflection.go

@@ -1,2 +1,37 @@
 // Package reflection helps Marshalling/Unmarshalling data to structs
 package reflection
+
+import (
+	"reflect"
+)
+
+// Reflection provides Marshalling/Unmarshalling oriented view
+// of a value
+type Reflection struct {
+	v reflect.Value
+}
+
+// Value returns the object it reflects
+func (r *Reflection) Value() any {
+	return r.v.Interface()
+}
+
+// New creates a Reflection of the given pointer
+func New(v any) (*Reflection, error) {
+	rv := reflect.ValueOf(v)
+
+	if rv.Kind() != reflect.Pointer || rv.IsNil() {
+		err := &InvalidUnmarshalError{Type: rv.Type()}
+		return nil, err
+	}
+
+	r := &Reflection{
+		v: rv,
+	}
+
+	if err := r.scan(); err != nil {
+		return nil, err
+	}
+
+	return r, nil
+}

reflection/scan.go

@@ -0,0 +1,5 @@
+package reflection
+
+func (*Reflection) scan() error {
+	return nil
+}