1 files changed, 21 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/mammoth/internal/html/HtmlNode.java b/src/main/java/org/zwobble/mammoth/internal/html/HtmlNode.java
new file mode 100644
index 0000000..a04b57f
--- /dev/null
+++ b/src/main/java/org/zwobble/mammoth/internal/html/HtmlNode.java
@@ -0,0 +1,21 @@
+package org.zwobble.mammoth.internal.html;
+
+public interface HtmlNode {
+    // TODO: rename visit to accept
+    void visit(Visitor visitor);
+    <T> T accept(Mapper<T> visitor);
+
+    interface Visitor {
+        void visit(HtmlElement element);
+        void visit(HtmlSelfClosingElement element);
+        void visit(HtmlTextNode node);
+        void visit(HtmlForceWrite forceWrite);
+    }
+
+    interface Mapper<T> {
+        T visit(HtmlElement element);
+        T visit(HtmlSelfClosingElement element);
+        T visit(HtmlTextNode node);
+        T visit(HtmlForceWrite forceWrite);
+    }
+}