issue1154: move the resolve methods in Node

javaparser-core/src/main/java/com/github/javaparser/ast/Node.java

@@ -41,6 +41,7 @@
 import com.github.javaparser.metamodel.PropertyMetaModel;
 import com.github.javaparser.printer.PrettyPrinter;
 import com.github.javaparser.printer.PrettyPrinterConfiguration;
+import com.github.javaparser.resolution.SymbolResolver;
 
 import javax.annotation.Generated;
 import java.util.*;
@@ -663,4 +664,17 @@ public Optional<CompilationUnit> findCompilationUnit() {
         }
         return Optional.empty();
     }
+
+    protected SymbolResolver getSymbolResolver() {
+        return findCompilationUnit().map(cu -> {
+            SymbolResolver symbolResolver = this.getData(SYMBOL_RESOLVER_KEY);
+            if (symbolResolver == null) {
+                throw new IllegalStateException("Symbol resolution not configured");
+            }
+            return symbolResolver;
+        }).orElseThrow(() -> new IllegalStateException("The node is not inserted in a CompilationUnit"));
+    }
+
+    // We need to expose it because we will need to use it to inject the SymbolSolver
+    public static final DataKey<SymbolResolver> SYMBOL_RESOLVER_KEY = new DataKey<SymbolResolver>() { };
 }

javaparser-core/src/main/java/com/github/javaparser/ast/type/Type.java

@@ -37,6 +37,8 @@
 import com.github.javaparser.resolution.types.ResolvedType;
 
 import java.util.function.Consumer;
+import java.util.function.Supplier;
+
 import static com.github.javaparser.utils.CodeGenerationUtils.f;
 
 /**
@@ -294,13 +296,4 @@ public void ifVoidType(Consumer<VoidType> action) {
     public void ifWildcardType(Consumer<WildcardType> action) {
     }
 
-    protected SymbolResolver getSymbolResolver() {
-        SymbolResolver symbolResolver = this.getData(SYMBOL_RESOLVER_KEY);
-        if (symbolResolver == null) {
-            throw new IllegalStateException("Symbol resolution not configured");
-        }
-        return symbolResolver;
-    }
-
-    private static final DataKey<SymbolResolver> SYMBOL_RESOLVER_KEY = new DataKey<SymbolResolver>() { };
 }

javaparser-core/src/main/java/com/github/javaparser/ast/type/UnknownType.java

@@ -33,6 +33,7 @@
 import com.github.javaparser.metamodel.JavaParserMetaModel;
 import javax.annotation.Generated;
 import com.github.javaparser.TokenRange;
+import com.github.javaparser.resolution.types.ResolvedReferenceType;
 import com.github.javaparser.resolution.types.ResolvedType;
 import com.github.javaparser.resolution.types.ResolvedUnionType;
 
@@ -131,6 +132,6 @@ public void ifUnknownType(Consumer<UnknownType> action) {
 
     @Override
     public ResolvedType resolve() {
-        throw new UnsupportedOperationException();
+        return getSymbolResolver().resolve(this, ResolvedReferenceType.class);
     }
 }