Add helper method "JsonToken.valueDescFor()"

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/core/JsonToken.java

@@ -221,4 +221,48 @@ public enum JsonToken
      *   {@code false} otherwise
      */
     public final boolean isBoolean() { return _isBoolean; }
+
+    /**
+     * Helper method for constructing description like "Object value" given
+     * {@link JsonToken} encountered.
+     *
+     * @since 2.16
+     */
+    public static String valueDescFor(JsonToken t) {
+        if (t == null) {
+            return "<end of input>";
+        }
+        switch (t) {
+        case START_OBJECT:
+        case END_OBJECT:
+        case FIELD_NAME:
+            return "Object value";
+
+        case START_ARRAY:
+        case END_ARRAY:
+            return "Array value";
+
+        case VALUE_FALSE:
+        case VALUE_TRUE:
+            return "Boolean value";
+
+        case VALUE_EMBEDDED_OBJECT:
+            return "Embedded Object value";
+
+        case VALUE_NUMBER_FLOAT:
+            return "Floating-point value";
+        case VALUE_NUMBER_INT:
+            return "Integer value";
+        case VALUE_STRING:
+            return "String value";
+
+        case VALUE_NULL:
+            return "Null value";
+
+        case NOT_AVAILABLE:
+        default:
+            return "[Unavailable value]";
+        }
+
+    }
 }