--- /dev/null
+<?php
+
+namespace Drupal\Core\TypedData\Plugin\DataType;
+
+use Drupal\Core\TypedData\PrimitiveBase;
+use Drupal\Core\TypedData\Type\FloatInterface;
+
+/**
+ * The float data type.
+ *
+ * The plain value of a float is a regular PHP float. For setting the value
+ * any PHP variable that casts to a float may be passed.
+ *
+ * @DataType(
+ * id = "float",
+ * label = @Translation("Float")
+ * )
+ */
+class FloatData extends PrimitiveBase implements FloatInterface {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getCastedValue() {
+ return (float) $this->value;
+ }
+
+}