Diff: src/ArduinoJson/Deserialization/Filter.hpp

Revision:

0:18ba3960b5dd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ArduinoJson/Deserialization/Filter.hpp	Fri Mar 19 19:30:50 2021 +0000
@@ -0,0 +1,66 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#pragma once
+
+#include <ArduinoJson/Namespace.hpp>
+
+namespace ARDUINOJSON_NAMESPACE {
+
+class Filter {
+ public:
+  explicit Filter(VariantConstRef v) : _variant(v) {}
+
+  bool allow() const {
+    return _variant;
+  }
+
+  bool allowArray() const {
+    return _variant == true || _variant.is<ArrayRef>();
+  }
+
+  bool allowObject() const {
+    return _variant == true || _variant.is<ObjectRef>();
+  }
+
+  bool allowValue() const {
+    return _variant == true;
+  }
+
+  template <typename TKey>
+  Filter operator[](const TKey& key) const {
+    if (_variant == true)  // "true" means "allow recursively"
+      return *this;
+    else
+      return Filter(_variant[key] | _variant["*"]);
+  }
+
+ private:
+  VariantConstRef _variant;
+};
+
+struct AllowAllFilter {
+  bool allow() const {
+    return true;
+  }
+
+  bool allowArray() const {
+    return true;
+  }
+
+  bool allowObject() const {
+    return true;
+  }
+
+  bool allowValue() const {
+    return true;
+  }
+
+  template <typename TKey>
+  AllowAllFilter operator[](const TKey&) const {
+    return AllowAllFilter();
+  }
+};
+
+}  // namespace ARDUINOJSON_NAMESPACE