Extracted base class JsonObjectBase

2014-06-25 13:23:08 +02:00
parent d57234e92c
commit 4c387e9062
5 changed files with 74 additions and 46 deletions
--- a/JsonGeneratorTests/JsonObjectBase.h
+++ b/JsonGeneratorTests/JsonObjectBase.h
@ -0,0 +1,60 @@
+/*
+ * Arduino JSON library
+ * Benoit Blanchon 2014 - MIT License
+ */
+
+#pragma once
+
+#include "StringBuilder.h"
+
+class JsonObjectBase
+{
+public:
+
+
+protected:
+
+    virtual void writeTo(StringBuilder& sb) = 0;
+
+    enum JsonObjectType
+    {
+        JSON_STRING,
+        JSON_NUMBER,
+        JSON_BOOLEAN,
+    };
+
+    union JsonObjectValue
+    {
+        const char* string;
+        double      number;
+        bool        boolean;
+    };
+
+    struct JsonObject
+    {
+        JsonObjectType type;
+        JsonObjectValue value;
+    };
+
+    void writeObjectTo(const JsonObject& obj, StringBuilder& sb)
+    {
+        switch (obj.type)
+        {
+        case JSON_STRING:
+            if (obj.value.string)
+                sb.append("\"%s\"", obj.value.string);
+            else
+                sb.append("null");
+            break;
+
+        case JSON_NUMBER:
+            sb.append("%lg", obj.value.number);
+            break;
+
+        case JSON_BOOLEAN:
+            sb.append(obj.value.boolean ? "true" : "false");
+            break;
+        }
+    }
+};
+