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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;");
}
}
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