1 files changed, 48 insertions, 0 deletions
diff --git a/javaparser-core-generators/src/main/java/com/github/javaparser/generator/core/visitor/EqualsVisitorGenerator.java b/javaparser-core-generators/src/main/java/com/github/javaparser/generator/core/visitor/EqualsVisitorGenerator.java
new file mode 100644
index 000000000..7517f8e6b
--- /dev/null
+++ b/javaparser-core-generators/src/main/java/com/github/javaparser/generator/core/visitor/EqualsVisitorGenerator.java
@@ -0,0 +1,48 @@
+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 EqualsVisitor.
+ */
+public class EqualsVisitorGenerator extends VisitorGenerator {
+    public EqualsVisitorGenerator(SourceRoot sourceRoot) {
+        super(sourceRoot, "com.github.javaparser.ast.visitor", "EqualsVisitor", "Boolean", "Visitable", 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();
+
+        body.addStatement(f("final %s n2 = (%s) arg;", node.getTypeName(), node.getTypeName()));
+
+        for (PropertyMetaModel field : node.getAllPropertyMetaModels()) {
+            final String getter = field.getGetterMethodName() + "()";
+            if (field.getNodeReference().isPresent()) {
+                if (field.isNodeList()) {
+                    body.addStatement(f("if (!nodesEquals(n.%s, n2.%s)) return false;", getter, getter));
+                } else {
+                    body.addStatement(f("if (!nodeEquals(n.%s, n2.%s)) return false;", getter, getter));
+                }
+            } else {
+                body.addStatement(f("if (!objEquals(n.%s, n2.%s)) return false;", getter, getter));
+            }
+        }
+        if (body.getStatements().size() == 1) {
+            // Only the cast line was added, but nothing is using it, so remove it again.
+            body.getStatements().clear();
+        }
+        body.addStatement("return true;");
+    }
+}