Memoize schema validation

src/models/node.js

@@ -1407,7 +1407,19 @@ const Node = {
     } else {
       return result
     }
+  },
+
+  /**
+   * Validate the node against a `schema`.
+   *
+   * @param {Schema} schema
+   * @return {Object || Void}
+   */
+
+  validate(schema) {
+    return schema.__validate(this)
   }
+
 }
 
 /**
@@ -1452,7 +1464,8 @@ memoize(Node, [
   '_getTexts',
   'getTextsAtRange',
   'hasVoidParent',
-  'isInlineSplitAtRange'
+  'isInlineSplitAtRange',
+  'validate'
 ])
 
 /**

src/models/text.js

@@ -329,6 +329,18 @@ class Text extends new Record(DEFAULTS) {
 
     return this.merge({ characters })
   }
+
+  /**
+   * Validate the text node against a `schema`.
+   *
+   * @param {Schema} schema
+   * @return {Object || Void}
+   */
+
+  validate(schema) {
+    return schema.__validate(this)
+  }
+
 }
 
 /**
@@ -338,7 +350,8 @@ class Text extends new Record(DEFAULTS) {
 memoize(Text.prototype, [
   'getDecorations',
   'getDecorators',
-  'getRanges'
+  'getRanges',
+  'validate'
 ])
 
 /**

src/transforms/normalize.js

@@ -233,7 +233,8 @@ function normalizeNodeOnly(transform, schema, node) {
 
   // Auxiliary function, called recursively, with a maximum calls safety net.
   function _recur(_transform, _node) {
-    const failure = schema.__validate(_node)
+    // _node.validate should be memoized
+    const failure = _node.validate(schema)
 
     // Node is valid?
     if (!failure) {