feat: display all alternative Types

LanguageServer/src/main/java/de/dhbw/helper/TypeFinder.java

@@ -8,6 +8,7 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintStream;
 import java.util.*;
+import java.util.concurrent.atomic.AtomicReference;
 
 
 /**
@@ -74,7 +75,14 @@ public class TypeFinder {
         for (var method : transferObj.getAst().getAllMethods()) {
             if (method.name.equals(methodName)) {
                 if (method.getReturnType().toString().contains("TPH ")) {
-                    return typeHashMap.get(method.getReturnType().toString()).getFirst();
+                    StringBuilder possibleTypes = new StringBuilder();
+
+                    for(var type : typeHashMap.get(method.getReturnType().toString())){
+                        possibleTypes.append(" | ").append(type);
+                    }
+
+
+                    return possibleTypes.toString().substring(3);
                 }else{
                     return method.getReturnType().toString();
                 }

LanguageServer/src/test/java/CompilerInterfaceTest.java

@@ -28,9 +28,12 @@ public class CompilerInterfaceTest {
     @Test
     public void testTypeFinder() throws IOException, ClassNotFoundException {
         TypeFinder typeFinder = new TypeFinder();
-       var inferedMethods = typeFinder.infereMethodType("import java.lang.Integer;" +
+       var inferedMethods = typeFinder.infereMethodType("import java.lang.Integer; import java.lang.String;" +
         "public class test{"+
-            "public main(test){"+
+            "public main(test){" +
+               "if(0>1){" +
+               "return \"w\";" +
+               "}"+
                 "Integer i = 0;"+
                 "return i;"+
             "}"+