Feat: include the helper

packages/core/src/validation.rs

@@ -0,0 +1,37 @@
+/// TODO @Jon
+/// Figure out if validation should be its own crate, or embedded directly into dioxus
+///
+/// Should we even be bothered with validation?
+///
+///
+///
+mod validation {
+    use once_cell::sync::Lazy;
+    use std::collections::HashSet;
+
+    // Used to uniquely identify elements that contain closures so that the DomUpdater can
+    // look them up by their unique id.
+    // When the DomUpdater sees that the element no longer exists it will drop all of it's
+    // Rc'd Closures for those events.
+    static SELF_CLOSING_TAGS: Lazy<HashSet<&'static str>> = Lazy::new(|| {
+        [
+            "area", "base", "br", "col", "hr", "img", "input", "link", "meta", "param", "command",
+            "keygen", "source",
+        ]
+        .iter()
+        .cloned()
+        .collect()
+    });
+
+    /// Whether or not this tag is self closing
+    ///
+    /// ```ignore
+    /// use dioxus_core::validation::is_self_closing;
+    /// assert_eq!(is_self_closing("br"), true);
+    /// assert_eq!(is_self_closing("div"), false);
+    /// ```
+    pub fn is_self_closing(tag: &str) -> bool {
+        SELF_CLOSING_TAGS.contains(tag)
+        // SELF_CLOSING_TAGS.contains(tag) || is_self_closing_svg_tag(tag)
+    }
+}