1 files changed, 43 insertions, 0 deletions
diff --git a/javaparser-core-generators/src/main/java/com/github/javaparser/generator/core/visitor/VoidVisitorAdapterGenerator.java b/javaparser-core-generators/src/main/java/com/github/javaparser/generator/core/visitor/VoidVisitorAdapterGenerator.java
new file mode 100644
index 000000000..937ea7e04
--- /dev/null
+++ b/javaparser-core-generators/src/main/java/com/github/javaparser/generator/core/visitor/VoidVisitorAdapterGenerator.java
@@ -0,0 +1,43 @@
+package com.github.javaparser.generator.core.visitor;
+
+import com.github.javaparser.ast.CompilationUnit;
+import com.github.javaparser.ast.body.MethodDeclaration;
+import com.github.javaparser.ast.stmt.BlockStmt;
+import com.github.javaparser.generator.VisitorGenerator;
+import com.github.javaparser.utils.SourceRoot;
+import com.github.javaparser.metamodel.BaseNodeMetaModel;
+import com.github.javaparser.metamodel.PropertyMetaModel;
+
+import static com.github.javaparser.utils.CodeGenerationUtils.f;
+
+/**
+ * Generates JavaParser's VoidVisitorAdapter.
+ */
+public class VoidVisitorAdapterGenerator extends VisitorGenerator {
+    public VoidVisitorAdapterGenerator(SourceRoot sourceRoot) {
+        super(sourceRoot, "com.github.javaparser.ast.visitor", "VoidVisitorAdapter", "void", "A", true);
+    }
+
+    @Override
+    protected void generateVisitMethodBody(BaseNodeMetaModel node, MethodDeclaration visitMethod, CompilationUnit compilationUnit) {
+        visitMethod.getParameters().forEach(p -> p.setFinal(true));
+
+        BlockStmt body = visitMethod.getBody().get();
+        body.getStatements().clear();
+
+        for (PropertyMetaModel field : node.getAllPropertyMetaModels()) {
+            final String getter = field.getGetterMethodName() + "()";
+            if (field.getNodeReference().isPresent()) {
+                if (field.isOptional() && field.isNodeList()) {
+                    body.addStatement(f("n.%s.ifPresent( l -> l.forEach( v -> v.accept(this, arg)));", getter));
+                } else if (field.isOptional()) {
+                    body.addStatement(f("n.%s.ifPresent(l -> l.accept(this, arg));", getter));
+                } else if (field.isNodeList()) {
+                    body.addStatement(f("n.%s.forEach(p -> p.accept(this, arg));", getter));
+                } else {
+                    body.addStatement(f("n.%s.accept(this, arg);", getter));
+                }
+            }
+        }
+    }
+}