wrap-java: Circular references with javaparser-core-3.28.0.jar

[Lancelotbronner]

Here's one of the cycles being complained about:

// Auto-generated by Java-to-Swift wrapper generator.
import CSwiftJavaJNI
import SwiftJava

@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
open class Node: JavaObject {
  /**
   * Java method `getMetaModel`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.metamodel.NodeMetaModel com.github.javaparser.ast.Node.getMetaModel()
   * ```
   */
@JavaMethod
  open func getMetaModel() -> NodeMetaModel!

  /**
   * Java method `setParentNode`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.setParentNode(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  open func setParentNode(_ newParentNode: Node?) -> Node!

  /**
   * Java method `getPrinter`.
   * 
   * ### Java method signature
   * ```java
   * protected com.github.javaparser.printer.Printer com.github.javaparser.ast.Node.getPrinter()
   * ```
   */
@JavaMethod
  open func getPrinter() -> Printer!

  /**
   * Java method `getPrinter`.
   * 
   * ### Java method signature
   * ```java
   * protected com.github.javaparser.printer.Printer com.github.javaparser.ast.Node.getPrinter(com.github.javaparser.printer.configuration.PrinterConfiguration)
   * ```
   */
@JavaMethod
  open func getPrinter(_ configuration: PrinterConfiguration?) -> Printer!

  /**
   * Java method `setTokenRange`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.setTokenRange(com.github.javaparser.TokenRange)
   * ```
   */
@JavaMethod
  open func setTokenRange(_ tokenRange: TokenRange?) -> Node!

  /**
   * Java method `setRange`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.setRange(com.github.javaparser.Range)
   * ```
   */
@JavaMethod
  open func setRange(_ range: Range?) -> Node!

  /**
   * Java method `setLineComment`.
   * 
   * ### Java method signature
   * ```java
   * public final com.github.javaparser.ast.Node com.github.javaparser.ast.Node.setLineComment(java.lang.String)
   * ```
   */
@JavaMethod
  open func setLineComment(_ comment: String) -> Node!

  /**
   * Java method `setData`.
   * 
   * ### Java method signature
   * ```java
   * public <M> void com.github.javaparser.ast.Node.setData(com.github.javaparser.ast.DataKey<M>,M)
   * ```
   */
@JavaMethod
  open func setData<M: AnyJavaObject>(_ key: DataKey<M>?, _ object: M?)

  /**
   * Java method `containsData`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.containsData(com.github.javaparser.ast.DataKey<?>)
   * ```
   */
@JavaMethod
  open func containsData(_ key: DataKey<JavaObject>?) -> Bool

  /**
   * Java method `removeData`.
   * 
   * ### Java method signature
   * ```java
   * public void com.github.javaparser.ast.Node.removeData(com.github.javaparser.ast.DataKey<?>)
   * ```
   */
@JavaMethod
  open func removeData(_ key: DataKey<JavaObject>?)

  /**
   * Java method `removeForced`.
   * 
   * ### Java method signature
   * ```java
   * public void com.github.javaparser.ast.Node.removeForced()
   * ```
   */
@JavaMethod
  open func removeForced()

  /**
   * Java method `removeComment`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.removeComment()
   * ```
   */
@JavaMethod
  open func removeComment() -> Node!

  /**
   * Java method `findRootNode`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.findRootNode()
   * ```
   */
@JavaMethod
  open func findRootNode() -> Node!

  /**
   * Java method `isAncestorOf`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.isAncestorOf(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  open func isAncestorOf(_ descendant: Node?) -> Bool

  /**
   * Java method `hasScope`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.hasScope()
   * ```
   */
@JavaMethod
  open func hasScope() -> Bool

  /**
   * Java method `isPhantom`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.isPhantom()
   * ```
   */
@JavaMethod
  open func isPhantom() -> Bool

  /**
   * Java method `registerForSubtree`.
   * 
   * ### Java method signature
   * ```java
   * public void com.github.javaparser.ast.Node.registerForSubtree(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  open func registerForSubtree(_ observer: AstObserver?)

  /**
   * Java method `customInitialization`.
   * 
   * ### Java method signature
   * ```java
   * protected void com.github.javaparser.ast.Node.customInitialization()
   * ```
   */
@JavaMethod
  open func customInitialization()

  /**
   * Java method `setAsParentNodeOf`.
   * 
   * ### Java method signature
   * ```java
   * protected void com.github.javaparser.ast.Node.setAsParentNodeOf(com.github.javaparser.ast.NodeList<? extends com.github.javaparser.ast.Node>)
   * ```
   */
@JavaMethod
  open func setAsParentNodeOf(_ list: NodeList<Node>?)

  /**
   * Java method `setAsParentNodeOf`.
   * 
   * ### Java method signature
   * ```java
   * protected void com.github.javaparser.ast.Node.setAsParentNodeOf(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  open func setAsParentNodeOf(_ childNode: Node?)

  /**
   * Java method `createDefaultPrinter`.
   * 
   * ### Java method signature
   * ```java
   * protected com.github.javaparser.printer.Printer com.github.javaparser.ast.Node.createDefaultPrinter(com.github.javaparser.printer.configuration.PrinterConfiguration)
   * ```
   */
@JavaMethod
  open func createDefaultPrinter(_ configuration: PrinterConfiguration?) -> Printer!

  /**
   * Java method `createDefaultPrinter`.
   * 
   * ### Java method signature
   * ```java
   * protected com.github.javaparser.printer.Printer com.github.javaparser.ast.Node.createDefaultPrinter()
   * ```
   */
@JavaMethod
  open func createDefaultPrinter() -> Printer!

  /**
   * Java method `setBlockComment`.
   * 
   * ### Java method signature
   * ```java
   * public final com.github.javaparser.ast.Node com.github.javaparser.ast.Node.setBlockComment(java.lang.String)
   * ```
   */
@JavaMethod
  open func setBlockComment(_ comment: String) -> Node!

  /**
   * Java method `addOrphanComment`.
   * 
   * ### Java method signature
   * ```java
   * public void com.github.javaparser.ast.Node.addOrphanComment(com.github.javaparser.ast.comments.Comment)
   * ```
   */
@JavaMethod
  open func addOrphanComment(_ comment: Comment?)

  /**
   * Java method `removeOrphanComment`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.removeOrphanComment(com.github.javaparser.ast.comments.Comment)
   * ```
   */
@JavaMethod
  open func removeOrphanComment(_ comment: Comment?) -> Bool

  /**
   * Java method `getSymbolResolver`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.resolution.SymbolResolver com.github.javaparser.ast.Node.getSymbolResolver()
   * ```
   */
@JavaMethod
  open func getSymbolResolver() -> SymbolResolver!

  /**
   * Java method `getParentNodeForChildren`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.getParentNodeForChildren()
   * ```
   */
@JavaMethod
  open func getParentNodeForChildren() -> Node!

  /**
   * Java method `getDefaultPrinterConfiguration`.
   * 
   * ### Java method signature
   * ```java
   * protected com.github.javaparser.printer.configuration.PrinterConfiguration com.github.javaparser.ast.Node.getDefaultPrinterConfiguration()
   * ```
   */
@JavaMethod
  open func getDefaultPrinterConfiguration() -> PrinterConfiguration!

  /**
   * Java method `remove`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.remove()
   * ```
   */
@JavaMethod
  open func remove() -> Bool

  /**
   * Java method `remove`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.remove(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  open func remove(_ node: Node?) -> Bool

  /**
   * Java method `equals`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.equals(java.lang.Object)
   * ```
   */
@JavaMethod
  open override func equals(_ obj: JavaObject?) -> Bool

  /**
   * Java method `toString`.
   * 
   * ### Java method signature
   * ```java
   * public final java.lang.String com.github.javaparser.ast.Node.toString()
   * ```
   */
@JavaMethod
  open override func toString() -> String

  /**
   * Java method `toString`.
   * 
   * ### Java method signature
   * ```java
   * public final java.lang.String com.github.javaparser.ast.Node.toString(com.github.javaparser.printer.configuration.PrinterConfiguration)
   * ```
   */
@JavaMethod
  open func toString(_ configuration: PrinterConfiguration?) -> String

  /**
   * Java method `hashCode`.
   * 
   * ### Java method signature
   * ```java
   * public final int com.github.javaparser.ast.Node.hashCode()
   * ```
   */
@JavaMethod
  open override func hashCode() -> Int32

  /**
   * Java method `clone`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.clone()
   * ```
   */
@JavaMethod
  open override func clone() -> Node!

  /**
   * Java method `replace`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.replace(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  open func replace(_ node: Node?) -> Bool

  /**
   * Java method `replace`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.replace(com.github.javaparser.ast.Node,com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  open func replace(_ node: Node?, _ replacementNode: Node?) -> Bool

  /**
   * Java method `isRegistered`.
   * 
   * ### Java method signature
   * ```java
   * public boolean com.github.javaparser.ast.Node.isRegistered(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  open func isRegistered(_ observer: AstObserver?) -> Bool

  /**
   * Java method `register`.
   * 
   * ### Java method signature
   * ```java
   * public void com.github.javaparser.ast.Node.register(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  open func register(_ observer: AstObserver?)

  /**
   * Java method `unregister`.
   * 
   * ### Java method signature
   * ```java
   * public void com.github.javaparser.ast.Node.unregister(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  open func unregister(_ observer: AstObserver?)

  /**
   * Java method `setComment`.
   * 
   * ### Java method signature
   * ```java
   * public com.github.javaparser.ast.Node com.github.javaparser.ast.Node.setComment(com.github.javaparser.ast.comments.Comment)
   * ```
   */
@JavaMethod
  open func setComment(_ comment: Comment?) -> Node!

  /**
   * Java method `getData`.
   * 
   * ### Java method signature
   * ```java
   * public <M> M com.github.javaparser.ast.Node.getData(com.github.javaparser.ast.DataKey<M>)
   * ```
   */
@JavaMethod(typeErasedResult: "M!")
  open func getData<M: AnyJavaObject>(_ key: DataKey<M>?) -> M!
}
extension JavaClass<Node> {
  @JavaStaticField(isFinal: true)
  public var ABSOLUTE_BEGIN_LINE: Int32

  @JavaStaticField(isFinal: true)
  public var ABSOLUTE_END_LINE: Int32

  @JavaStaticField(isFinal: true)
  public var SYMBOL_RESOLVER_KEY: DataKey<SymbolResolver>!

  @JavaStaticField(isFinal: true)
  public var PRINTER_KEY: DataKey<Printer>!
}

// Auto-generated by Java-to-Swift wrapper generator.
import CSwiftJavaJNI
import SwiftJava

@JavaInterface("com.github.javaparser.HasParentNode", extends: Observable.self)
public struct HasParentNode<T: AnyJavaObject> {
  /**
   * Java method `setParentNode`.
   * 
   * ### Java method signature
   * ```java
   * public abstract T com.github.javaparser.HasParentNode.setParentNode(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod(typeErasedResult: "T!")
  public func setParentNode(_ parentNode: Node?) -> T!

  /**
   * Java method `hasParentNode`.
   * 
   * ### Java method signature
   * ```java
   * public default boolean com.github.javaparser.HasParentNode.hasParentNode()
   * ```
   */
@JavaMethod
  public func hasParentNode() -> Bool

  /**
   * Java method `isDescendantOf`.
   * 
   * ### Java method signature
   * ```java
   * public default boolean com.github.javaparser.HasParentNode.isDescendantOf(com.github.javaparser.ast.Node)
   * ```
   */
@JavaMethod
  public func isDescendantOf(_ ancestor: Node?) -> Bool

  /**
   * Java method `getParentNodeForChildren`.
   * 
   * ### Java method signature
   * ```java
   * public abstract com.github.javaparser.ast.Node com.github.javaparser.HasParentNode.getParentNodeForChildren()
   * ```
   */
@JavaMethod
  public func getParentNodeForChildren() -> Node!

  /**
   * Java method `isRegistered`.
   * 
   * ### Java method signature
   * ```java
   * public abstract boolean com.github.javaparser.ast.observer.Observable.isRegistered(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  public func isRegistered(_ observer: AstObserver?) -> Bool

  /**
   * Java method `register`.
   * 
   * ### Java method signature
   * ```java
   * public abstract void com.github.javaparser.ast.observer.Observable.register(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  public func register(_ observer: AstObserver?)

  /**
   * Java method `unregister`.
   * 
   * ### Java method signature
   * ```java
   * public abstract void com.github.javaparser.ast.observer.Observable.unregister(com.github.javaparser.ast.observer.AstObserver)
   * ```
   */
@JavaMethod
  public func unregister(_ observer: AstObserver?)
}

[ktoso]

Can you please post the actual error?

[ktoso]

Preferably attach a reproducer project so I don't have to make one up for every other issue, thank you :) Here I assume the repro project from #540 (comment) might be used, but it'd be helpful to see your config.

[Lancelotbronner]

I uploaded the repo! With your example integrated I get a different error (I get the same just trying to run your example without modifications, other than using the remote swift-java dependency):

Swift package target 'SwiftJava' is linked as a static library by 'java2swift-product' and 'SwiftJava-product', but cannot be built dynamically because there is a package product with the same name.

The reproducer for this issue is in the manually-generated branch and gives this error (using the 8cf1829 commit):

<unknown>:0: error: circular reference
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:5:58: note: while resolving type 'HasParentNode<Node>'
@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
                                                         ^
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:5:1: note: while resolving attached macro 'JavaClass'
@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
^
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:6:12: note: circular reference expanding extension macros on 'Node'
open class Node: JavaObject {
           ^
<unknown>:0: error: circular reference
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:5:100: note: while resolving type 'NodeWithRange<Node>'
@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
                                                                                                   ^
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:5:1: note: while resolving attached macro 'JavaClass'
@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
^
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:6:12: note: circular reference expanding extension macros on 'Node'
open class Node: JavaObject {
           ^
<unknown>:0: error: circular reference
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:5:126: note: while resolving type 'NodeWithTokenRange<Node>'
@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
                                                                                                                             ^
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:5:1: note: while resolving attached macro 'JavaClass'
@JavaClass("com.github.javaparser.ast.Node", implements: HasParentNode<Node>.self, Visitable.self, NodeWithRange<Node>.self, NodeWithTokenRange<Node>.self)
^
/Users/lancelot/Developer/Languages/Java/java2swift/Sources/JavaParserCore/com/github/javaparser/ast/Node.swift:6:12: note: circular reference expanding extension macros on 'Node'
open class Node: JavaObject {