- Value parameters stubs

- ToString methods for stubs
- Some test fro stub tree construction

compiler/frontend/src/org/jetbrains/jet/JetNodeTypes.java

@@ -48,8 +48,8 @@ public interface JetNodeTypes {
     JetNodeType DELEGATOR_SUPER_CALL                = new JetNodeType("DELEGATOR_SUPER_CALL", JetDelegatorToSuperCall.class);
     JetNodeType DELEGATOR_SUPER_CLASS               = new JetNodeType("DELEGATOR_SUPER_CLASS", JetDelegatorToSuperClass.class);
     JetNodeType CONSTRUCTOR_CALLEE                  = new JetNodeType("CONSTRUCTOR_CALLEE", JetConstructorCalleeExpression.class);
-    JetNodeType VALUE_PARAMETER_LIST                = new JetNodeType("VALUE_PARAMETER_LIST", JetParameterList.class);
-    JetNodeType VALUE_PARAMETER                     = new JetNodeType("VALUE_PARAMETER", JetParameter.class);
+    IElementType VALUE_PARAMETER_LIST               = JetStubElementTypes.VALUE_PARAMETER_LIST;
+    IElementType VALUE_PARAMETER                    = JetStubElementTypes.VALUE_PARAMETER;
 
     JetNodeType CLASS_BODY                          = new JetNodeType("CLASS_BODY", JetClassBody.class);
     JetNodeType IMPORT_DIRECTIVE                    = new JetNodeType("IMPORT_DIRECTIVE", JetImportDirective.class);

compiler/frontend/src/org/jetbrains/jet/lang/parsing/JetParserDefinition.java

@@ -46,34 +46,41 @@ public class JetParserDefinition implements ParserDefinition {
         }*/
     }
 
+    @Override
     @NotNull
     public Lexer createLexer(Project project) {
         return new JetLexer();
     }
 
+    @Override
     public PsiParser createParser(Project project) {
         return new JetParser();
     }
 
+    @Override
     public IFileElementType getFileNodeType() {
         return JetStubElementTypes.FILE;
     }
 
+    @Override
     @NotNull
     public TokenSet getWhitespaceTokens() {
         return JetTokens.WHITESPACES;
     }
 
+    @Override
     @NotNull
     public TokenSet getCommentTokens() {
         return JetTokens.COMMENTS;
     }
 
+    @Override
     @NotNull
     public TokenSet getStringLiteralElements() {
         return JetTokens.STRINGS;
     }
 
+    @Override
     @NotNull
     public PsiElement createElement(ASTNode astNode) {
         if (astNode.getElementType() instanceof JetStubElementType) {
@@ -83,10 +90,12 @@ public class JetParserDefinition implements ParserDefinition {
         return ((JetNodeType) astNode.getElementType()).createPsi(astNode);
     }
 
+    @Override
     public PsiFile createFile(FileViewProvider fileViewProvider) {
         return new JetFile(fileViewProvider);
     }
 
+    @Override
     public SpaceRequirements spaceExistanceTypeBetweenTokens(ASTNode astNode, ASTNode astNode1) {
         return SpaceRequirements.MAY;
     }

compiler/frontend/src/org/jetbrains/jet/lang/psi/JetFile.java

@@ -24,12 +24,11 @@ import com.intellij.lang.ASTNode;
 import com.intellij.openapi.fileTypes.FileType;
 import com.intellij.psi.FileViewProvider;
 import com.intellij.psi.PsiElementVisitor;
-import com.intellij.psi.stubs.StubElement;
-import com.intellij.psi.stubs.StubTree;
 import com.intellij.psi.util.PsiTreeUtil;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.JetNodeTypes;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetFileStub;
 import org.jetbrains.jet.plugin.JetFileType;
 import org.jetbrains.jet.plugin.JetLanguage;
 
@@ -78,6 +77,17 @@ public class JetFile extends PsiFileBase implements JetDeclarationContainer {
         return ast != null ? (JetNamespaceHeader) ast.getPsi() : null;
     }
 
+    @Nullable
+    public String getPackageName() {
+        PsiJetFileStub stub = (PsiJetFileStub)getStub();
+        if (stub != null) {
+            return stub.getPackageName();
+        }
+
+        JetNamespaceHeader statement = getNamespaceHeader();
+        return statement != null ? statement.getQualifiedName() : null;
+    }
+
     @Nullable
     public JetScript getScript() {
         return PsiTreeUtil.getChildOfType(this, JetScript.class);
@@ -102,19 +112,4 @@ public class JetFile extends PsiFileBase implements JetDeclarationContainer {
             visitor.visitFile(this);
         }
     }
-
-    @Override
-    public StubElement getStub() {
-        return super.getStub();    //To change body of overridden methods use File | Settings | File Templates.
-    }
-
-    @Override
-    public StubTree calcStubTree() {
-        return super.calcStubTree();    //To change body of overridden methods use File | Settings | File Templates.
-    }
-
-    @Override
-    public StubTree getStubTree() {
-        return super.getStubTree();    //To change body of overridden methods use File | Settings | File Templates.
-    }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/JetParameter.java

@@ -17,19 +17,42 @@
 package org.jetbrains.jet.lang.psi;
 
 import com.intellij.lang.ASTNode;
+import com.intellij.psi.stubs.IStubElementType;
+import com.intellij.util.ArrayFactory;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.JetNodeTypes;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetParameterStub;
+import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
 import org.jetbrains.jet.lexer.JetTokens;
 
 /**
  * @author max
  */
-public class JetParameter extends JetNamedDeclarationNotStubbed {
+public class JetParameter extends JetNamedDeclarationStub<PsiJetParameterStub> {
+    public static final JetParameter[] EMPTY_ARRAY = new JetParameter[0];
+
+    public static final ArrayFactory<JetParameter> ARRAY_FACTORY = new ArrayFactory<JetParameter>() {
+        @Override
+        public JetParameter[] create(final int count) {
+            return count == 0 ? EMPTY_ARRAY : new JetParameter[count];
+        }
+    };
+
     public JetParameter(@NotNull ASTNode node) {
         super(node);
     }
 
+    public JetParameter(@NotNull PsiJetParameterStub stub, @NotNull IStubElementType nodeType) {
+        super(stub, nodeType);
+    }
+
+    @NotNull
+    @Override
+    public IStubElementType getElementType() {
+        return JetStubElementTypes.VALUE_PARAMETER;
+    }
+
     @Override
     public void accept(@NotNull JetVisitorVoid visitor) {
         visitor.visitParameter(this);
@@ -61,10 +84,20 @@ public class JetParameter extends JetNamedDeclarationNotStubbed {
     }
 
     public boolean isMutable() {
+        PsiJetParameterStub stub = getStub();
+        if (stub != null) {
+            return stub.isMutable();
+        }
+
         return findChildByType(JetTokens.VAR_KEYWORD) != null;
     }
 
     public boolean isVarArg() {
+        PsiJetParameterStub stub = getStub();
+        if (stub != null) {
+            return stub.isVarArg();
+        }
+
         JetModifierList modifierList = getModifierList();
         return modifierList != null && modifierList.getModifierNode(JetTokens.VARARG_KEYWORD) != null;
     }

compiler/frontend/src/org/jetbrains/jet/lang/psi/JetParameterList.java

@@ -17,19 +17,32 @@
 package org.jetbrains.jet.lang.psi;
 
 import com.intellij.lang.ASTNode;
+import com.intellij.psi.stubs.IStubElementType;
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.jet.JetNodeTypes;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetParameterListStub;
+import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
 
+import java.util.Arrays;
 import java.util.List;
 
 /**
  * @author max
  */
-public class JetParameterList extends JetElementImpl {
+public class JetParameterList extends JetElementImplStub<PsiJetParameterListStub> {
     public JetParameterList(@NotNull ASTNode node) {
         super(node);
     }
 
+    public JetParameterList(@NotNull PsiJetParameterListStub stub, @NotNull IStubElementType nodeType) {
+        super(stub, nodeType);
+    }
+
+    @NotNull
+    @Override
+    public IStubElementType getElementType() {
+        return JetStubElementTypes.VALUE_PARAMETER_LIST;
+    }
+
     @Override
     public void accept(@NotNull JetVisitorVoid visitor) {
         visitor.visitParameterList(this);
@@ -41,6 +54,6 @@ public class JetParameterList extends JetElementImpl {
     }
 
     public List<JetParameter> getParameters() {
-        return findChildrenByType(JetNodeTypes.VALUE_PARAMETER);
+        return Arrays.asList(getStubOrPsiChildren(JetStubElementTypes.VALUE_PARAMETER, JetParameter.ARRAY_FACTORY));
     }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/PsiJetParameterListStub.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.psi.stubs;
+
+import com.intellij.psi.stubs.StubElement;
+import org.jetbrains.jet.lang.psi.JetParameterList;
+
+/**
+ * @author Nikolay Krasko
+ */
+public interface PsiJetParameterListStub extends StubElement<JetParameterList> {
+}

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/PsiJetParameterStub.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.psi.stubs;
+
+import com.intellij.psi.stubs.NamedStub;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.jet.lang.psi.JetParameter;
+
+/**
+ * @author Nikolay Krasko
+ */
+public interface PsiJetParameterStub extends NamedStub<JetParameter> {
+    boolean isMutable();
+    boolean isVarArg();
+
+    @Nullable
+    String getTypeText();
+
+    @Nullable
+    String getDefaultValueText();
+}

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFileElementType.java

@@ -38,7 +38,7 @@ import java.io.IOException;
  * @author Nikolay Krasko
  */
 public class JetFileElementType extends IStubFileElementType<PsiJetFileStub> {
-    public static final int STUB_VERSION = 9;
+    public static final int STUB_VERSION = 10;
 
     public JetFileElementType() {
         super("jet.FILE", JetLanguage.INSTANCE);

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFileStubBuilder.java

@@ -19,35 +19,21 @@ package org.jetbrains.jet.lang.psi.stubs.elements;
 import com.intellij.psi.PsiFile;
 import com.intellij.psi.stubs.DefaultStubBuilder;
 import com.intellij.psi.stubs.StubElement;
-import com.intellij.util.io.StringRef;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.stubs.impl.PsiJetFileStubImpl;
 
 /**
  * @author Nikolay Krasko
  */
-public class JetFileStubBuilder  extends DefaultStubBuilder {
+public class JetFileStubBuilder extends DefaultStubBuilder {
     @Override
-    protected StubElement createStubForFile(PsiFile file) {
-
-        if (!(file instanceof JetFile)) return super.createStubForFile(file);
+    protected StubElement createStubForFile(@NotNull PsiFile file) {
+        if (!(file instanceof JetFile)) {
+            return super.createStubForFile(file);
+        }
 
         JetFile jetFile = (JetFile) file;
-
-        // TODO (stubs):
-        String packageName = "default";
-
-//        String refText = "";
-//
-//        final LighterASTNode pkg = LightTreeUtil.firstChildOfType(tree, tree.getRoot(), JavaElementType.PACKAGE_STATEMENT);
-//        if (pkg != null) {
-//            final LighterASTNode ref = LightTreeUtil.firstChildOfType(tree, pkg, JavaElementType.JAVA_CODE_REFERENCE);
-//            if (ref != null) {
-//                refText = SourceUtil.getTextSkipWhiteSpaceAndComments(tree, ref);
-//
-//            }
-//        }
-
-        return new PsiJetFileStubImpl(jetFile, StringRef.fromString(packageName));
+        return new PsiJetFileStubImpl(jetFile, jetFile.getPackageName());
     }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetFunctionElementType.java

@@ -58,7 +58,7 @@ public class JetFunctionElementType extends JetStubElementType<PsiJetFunctionStu
     }
 
     @Override
-    public PsiJetFunctionStub createStub(@NotNull JetNamedFunction psi, StubElement parentStub) {
+    public PsiJetFunctionStub createStub(@NotNull JetNamedFunction psi, @NotNull StubElement parentStub) {
         final boolean isTopLevel = parentStub instanceof PsiJetFileStub;
         final boolean isExtension = psi.getReceiverTypeRef() != null;
 

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetParameterElementType.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.psi.stubs.elements;
+
+import com.intellij.lang.ASTNode;
+import com.intellij.lang.LighterAST;
+import com.intellij.lang.LighterASTNode;
+import com.intellij.psi.stubs.IndexSink;
+import com.intellij.psi.stubs.StubElement;
+import com.intellij.psi.stubs.StubInputStream;
+import com.intellij.psi.stubs.StubOutputStream;
+import com.intellij.util.io.StringRef;
+import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.lang.psi.JetExpression;
+import org.jetbrains.jet.lang.psi.JetParameter;
+import org.jetbrains.jet.lang.psi.JetTypeReference;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetParameterStub;
+import org.jetbrains.jet.lang.psi.stubs.impl.PsiJetParameterStubImpl;
+
+import java.io.IOException;
+
+/**
+ * @author Nikolay Krasko
+ */
+public class JetParameterElementType extends JetStubElementType<PsiJetParameterStub, JetParameter> {
+    public JetParameterElementType(@NotNull @NonNls String debugName) {
+        super(debugName);
+    }
+
+    @Override
+    public JetParameter createPsiFromAst(@NotNull ASTNode node) {
+        return new JetParameter(node);
+    }
+
+    @Override
+    public PsiJetParameterStub createStub(LighterAST tree, LighterASTNode node, StubElement parentStub) {
+        return null;
+    }
+
+    @Override
+    public JetParameter createPsi(@NotNull PsiJetParameterStub stub) {
+        return new JetParameter(stub, JetStubElementTypes.VALUE_PARAMETER);
+    }
+
+    @Override
+    public PsiJetParameterStub createStub(@NotNull JetParameter psi, StubElement parentStub) {
+        JetTypeReference typeReference = psi.getTypeReference();
+        JetExpression defaultValue = psi.getDefaultValue();
+
+        return new PsiJetParameterStubImpl(JetStubElementTypes.VALUE_PARAMETER, parentStub,
+                psi.getName(), psi.isMutable(), psi.isVarArg(),
+                typeReference != null ? typeReference.getText() : null,
+                defaultValue != null ? defaultValue.getText() : null);
+    }
+
+    @Override
+    public void serialize(PsiJetParameterStub stub, StubOutputStream dataStream) throws IOException {
+        dataStream.writeName(stub.getName());
+        dataStream.writeBoolean(stub.isMutable());
+        dataStream.writeBoolean(stub.isVarArg());
+        dataStream.writeName(stub.getTypeText());
+        dataStream.writeName(stub.getDefaultValueText());
+    }
+
+    @Override
+    public PsiJetParameterStub deserialize(StubInputStream dataStream, StubElement parentStub) throws IOException {
+        StringRef name = dataStream.readName();
+        boolean isMutable = dataStream.readBoolean();
+        boolean isVarArg = dataStream.readBoolean();
+        StringRef typeText = dataStream.readName();
+        StringRef defaultValueText = dataStream.readName();
+
+        return new PsiJetParameterStubImpl(JetStubElementTypes.VALUE_PARAMETER, parentStub, name, isMutable, isVarArg,
+                                           typeText, defaultValueText);
+    }
+
+    @Override
+    public void indexStub(PsiJetParameterStub stub, IndexSink sink) {
+        // No index
+    }
+}

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetParameterListElementType.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.psi.stubs.elements;
+
+import com.intellij.lang.ASTNode;
+import com.intellij.lang.LighterAST;
+import com.intellij.lang.LighterASTNode;
+import com.intellij.psi.stubs.IndexSink;
+import com.intellij.psi.stubs.StubElement;
+import com.intellij.psi.stubs.StubInputStream;
+import com.intellij.psi.stubs.StubOutputStream;
+import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.lang.psi.JetParameterList;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetParameterListStub;
+import org.jetbrains.jet.lang.psi.stubs.impl.PsiJetParameterListStubImpl;
+
+import java.io.IOException;
+
+/**
+ * @author Nikolay Krasko
+ */
+public class JetParameterListElementType extends JetStubElementType<PsiJetParameterListStub, JetParameterList> {
+    public JetParameterListElementType(@NotNull @NonNls String debugName) {
+        super(debugName);
+    }
+
+    @Override
+    public JetParameterList createPsiFromAst(@NotNull ASTNode node) {
+        return new JetParameterList(node);
+    }
+
+    @Override
+    public PsiJetParameterListStub createStub(LighterAST tree, LighterASTNode node, StubElement parentStub) {
+        return null;
+    }
+
+    @Override
+    public JetParameterList createPsi(@NotNull PsiJetParameterListStub stub) {
+        return new JetParameterList(stub, JetStubElementTypes.VALUE_PARAMETER_LIST);
+    }
+
+    @Override
+    public PsiJetParameterListStub createStub(@NotNull JetParameterList psi, StubElement parentStub) {
+        return new PsiJetParameterListStubImpl(JetStubElementTypes.VALUE_PARAMETER_LIST, parentStub);
+    }
+
+    @Override
+    public void serialize(PsiJetParameterListStub stub, StubOutputStream dataStream) throws IOException {
+        // Nothing to serialize
+    }
+
+    @Override
+    public PsiJetParameterListStub deserialize(StubInputStream dataStream, StubElement parentStub) throws IOException {
+        return new PsiJetParameterListStubImpl(JetStubElementTypes.VALUE_PARAMETER_LIST, parentStub);
+    }
+
+    @Override
+    public void indexStub(PsiJetParameterListStub stub, IndexSink sink) {
+        // No index
+    }
+}
+

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/elements/JetStubElementTypes.java

@@ -26,6 +26,9 @@ public interface JetStubElementTypes {
     JetFunctionElementType FUNCTION = new JetFunctionElementType("FUN");
     JetPropertyElementType PROPERTY = new JetPropertyElementType("PROPERTY");
 
+    JetParameterElementType VALUE_PARAMETER = new JetParameterElementType("VALUE_PARAMETER");
+    JetParameterListElementType VALUE_PARAMETER_LIST = new JetParameterListElementType("VALUE_PARAMETER_LIST");
+
     JetTypeParameterElementType TYPE_PARAMETER = new JetTypeParameterElementType("TYPE_PARAMETER");
     JetTypeParameterListElementType TYPE_PARAMETER_LIST = new JetTypeParameterListElementType("TYPE_PARAMETER_LIST");
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetClassStubImpl.java

@@ -16,8 +16,10 @@
 
 package org.jetbrains.jet.lang.psi.stubs.impl;
 
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.stubs.StubBase;
 import com.intellij.psi.stubs.StubElement;
+import com.intellij.util.ArrayUtil;
 import com.intellij.util.io.StringRef;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -95,4 +97,22 @@ public class PsiJetClassStubImpl extends StubBase<JetClass> implements PsiJetCla
         }
         return result;
     }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("PsiJetClassStubImpl[");
+
+        if (isTrait()) {
+            builder.append("trait ");
+        }
+
+        builder.append("name=").append(getName());
+        builder.append(" fqn=").append(getQualifiedName());
+        builder.append(" superNames=").append("[").append(StringUtil.join(ArrayUtil.toStringArray(getSuperNames()))).append("]");
+
+        builder.append("]");
+
+        return builder.toString();
+    }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetFileStubImpl.java

@@ -33,10 +33,13 @@ public class PsiJetFileStubImpl extends PsiFileStubImpl<JetFile> implements PsiJ
 
     public PsiJetFileStubImpl(JetFile jetFile, StringRef packageName) {
         super(jetFile);
-
         this.packageName = packageName;
     }
 
+    public PsiJetFileStubImpl(JetFile jetFile, String packageName) {
+        this(jetFile, StringRef.fromString(packageName));
+    }
+
     @Override
     public String getPackageName() {
         return StringRef.toString(packageName);
@@ -56,4 +59,15 @@ public class PsiJetFileStubImpl extends PsiFileStubImpl<JetFile> implements PsiJ
     public PsiClass[] getClasses() {
         return new PsiClass[0];
     }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+
+        builder.append("PsiJetFileStubImpl[");
+        builder.append("package=").append(getPackageName());
+        builder.append("]");
+
+        return builder.toString();
+    }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetFunctionStubImpl.java

@@ -19,6 +19,7 @@ package org.jetbrains.jet.lang.psi.stubs.impl;
 import com.intellij.psi.stubs.IStubElementType;
 import com.intellij.psi.stubs.StubBase;
 import com.intellij.psi.stubs.StubElement;
+import com.intellij.util.ArrayUtil;
 import com.intellij.util.io.StringRef;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -67,6 +68,26 @@ public class PsiJetFunctionStubImpl extends StubBase<JetNamedFunction> implement
     @Override
     public String[] getAnnotations() {
         // TODO (stubs)
-        return new String[0];
+        return ArrayUtil.EMPTY_STRING_ARRAY;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("PsiJetFunctionStubImpl[");
+
+        if (isTopLevel()) {
+            builder.append("top ");
+        }
+
+        if (isExtension()) {
+            builder.append("ext ");
+        }
+
+        builder.append("name=").append(getName());
+
+        builder.append("]");
+
+        return builder.toString();
     }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetParameterListStubImpl.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.psi.stubs.impl;
+
+import com.intellij.psi.stubs.IStubElementType;
+import com.intellij.psi.stubs.StubBase;
+import com.intellij.psi.stubs.StubElement;
+import org.jetbrains.jet.lang.psi.JetParameterList;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetParameterListStub;
+
+/**
+ * @author Nikolay Krasko
+ */
+public class PsiJetParameterListStubImpl extends StubBase<JetParameterList> implements PsiJetParameterListStub {
+    public PsiJetParameterListStubImpl(IStubElementType elementType, StubElement parent) {
+        super(parent, elementType);
+    }
+
+    @Override
+    public String toString() {
+        return "PsiJetParameterListStubImpl";
+    }
+}

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetParameterStubImpl.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.lang.psi.stubs.impl;
+
+import com.intellij.psi.stubs.IStubElementType;
+import com.intellij.psi.stubs.StubBase;
+import com.intellij.psi.stubs.StubElement;
+import com.intellij.util.io.StringRef;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.jet.lang.psi.JetParameter;
+import org.jetbrains.jet.lang.psi.stubs.PsiJetParameterStub;
+
+/**
+ * @author Nikolay Krasko
+ */
+public class PsiJetParameterStubImpl extends StubBase<JetParameter> implements PsiJetParameterStub {
+    private final StringRef name;
+    private final boolean isMutable;
+    private final boolean isVarArg;
+    private final StringRef typeText;
+    private final StringRef defaultValueText;
+
+    public PsiJetParameterStubImpl(IStubElementType elementType, StubElement parent,
+            StringRef name,
+            boolean isMutable,
+            boolean isVarArg,
+            StringRef typeText, StringRef defaultValueText) {
+        super(parent, elementType);
+        this.name = name;
+        this.isMutable = isMutable;
+        this.isVarArg = isVarArg;
+        this.typeText = typeText;
+        this.defaultValueText = defaultValueText;
+    }
+
+    public PsiJetParameterStubImpl(IStubElementType elementType, StubElement parent,
+            String name,
+            boolean isMutable,
+            boolean isVarArg,
+            String typeText, String defaultValueText) {
+        this(elementType, parent, StringRef.fromString(name), isMutable, isVarArg,
+             StringRef.fromString(typeText), StringRef.fromString(defaultValueText));
+    }
+
+    @Override
+    public String getName() {
+        return StringRef.toString(name);
+    }
+
+    @Override
+    public boolean isMutable() {
+        return isMutable;
+    }
+
+    @Override
+    public boolean isVarArg() {
+        return isVarArg;
+    }
+
+    @Nullable
+    @Override
+    public String getTypeText() {
+        return StringRef.toString(typeText);
+    }
+
+    @Override
+    public String getDefaultValueText() {
+        return StringRef.toString(defaultValueText);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("PsiJetParameterStubImpl[");
+
+        builder.append(isMutable() ? "var " : "val ");
+
+        if (isVarArg()) {
+            builder.append("vararg ");
+        }
+
+        builder.append("name=").append(getName());
+        builder.append(" typeText=").append(getTypeText());
+        builder.append(" defaultValue=").append(getDefaultValueText());
+
+        builder.append("]");
+
+        return builder.toString();
+    }
+}

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetTypeParameterListStubImpl.java

@@ -30,4 +30,9 @@ public class PsiJetTypeParameterListStubImpl extends StubBase<JetTypeParameterLi
     public PsiJetTypeParameterListStubImpl(@NotNull IStubElementType elementType, final StubElement parent) {
         super(parent, elementType);
     }
+
+    @Override
+    public String toString() {
+        return "PsiJetTypeParameterListStubImpl";
+    }
 }

compiler/frontend/src/org/jetbrains/jet/lang/psi/stubs/impl/PsiJetTypeParameterStubImpl.java

@@ -35,6 +35,7 @@ public class PsiJetTypeParameterStubImpl extends StubBase<JetTypeParameter> impl
     public PsiJetTypeParameterStubImpl(JetTypeParameterElementType type, final StubElement parent,
             StringRef name, StringRef extendBoundTypeText, boolean isInVariance, boolean isOutVariance) {
         super(parent, type);
+
         this.name = name;
         this.extendBoundTypeText = extendBoundTypeText;
         this.isInVariance = isInVariance;
@@ -65,4 +66,25 @@ public class PsiJetTypeParameterStubImpl extends StubBase<JetTypeParameter> impl
     public String getName() {
         return StringRef.toString(name);
     }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("PsiJetTypeParameterStubImpl[");
+
+        if (isInVariance()) {
+            builder.append("in ");
+        }
+
+        if (isOutVariance()) {
+            builder.append("out ");
+        }
+
+        builder.append("name=").append(getName());
+        builder.append(" extendText=").append(getExtendBoundTypeText());
+
+        builder.append("]");
+
+        return builder.toString();
+    }
 }

idea/tests/org/jetbrains/jet/plugin/stubs/JetStubsTest.java

@@ -16,15 +16,21 @@
 
 package org.jetbrains.jet.plugin.stubs;
 
+import com.intellij.lang.FileASTNode;
 import com.intellij.psi.PsiFile;
+import com.intellij.psi.impl.DebugUtil;
+import com.intellij.psi.stubs.StubElement;
 import com.intellij.testFramework.LightProjectDescriptor;
 import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase;
+import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.psi.JetClass;
 import org.jetbrains.jet.lang.psi.JetDeclaration;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.stubs.PsiJetClassStub;
+import org.jetbrains.jet.lang.psi.stubs.elements.JetFileStubBuilder;
 import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
+import org.jetbrains.jet.plugin.JetFileType;
 import org.jetbrains.jet.plugin.JetLightProjectDescriptor;
 
 import java.util.List;
@@ -55,4 +61,42 @@ public class JetStubsTest extends LightCodeInsightFixtureTestCase {
         final PsiJetClassStub stub = JetStubElementTypes.CLASS.createStub(jetClass, null);
         assertEquals(true, stub.isTrait());
     }
+
+    public void testFilePackage() {
+        doBuildTest("package some.test",
+                    "PsiJetFileStubImpl[package=some.test]\n");
+    }
+
+    public void testClassTypeParameters() {
+        doBuildTest("class C<T> { }",
+                    "PsiJetFileStubImpl[package=]\n" +
+                    "  CLASS:PsiJetClassStubImpl[name=C fqn=C superNames=[]]\n" +
+                    "    TYPE_PARAMETER_LIST:PsiJetTypeParameterListStubImpl\n" +
+                    "      TYPE_PARAMETER:PsiJetTypeParameterStubImpl[name=T extendText=null]\n");
+    }
+
+    public void testFunctionParameters() {
+        doBuildTest("fun some(t: Int, other: String = \"hello\") { }",
+                    "PsiJetFileStubImpl[package=]\n" +
+                    "  FUN:PsiJetFunctionStubImpl[top name=some]\n" +
+                    "    VALUE_PARAMETER_LIST:PsiJetParameterListStubImpl\n" +
+                    "      VALUE_PARAMETER:PsiJetParameterStubImpl[val name=t typeText=Int defaultValue=null]\n" +
+                    "      VALUE_PARAMETER:PsiJetParameterStubImpl[val name=other typeText=String defaultValue=\"hello\"]\n");
+    }
+
+    private void doBuildTest(@NonNls final String source, @NonNls @NotNull final String tree) {
+        final JetFile file = (JetFile) createLightFile(JetFileType.INSTANCE, source);
+        final FileASTNode fileNode = file.getNode();
+        assertNotNull(fileNode);
+        // assertFalse(fileNode.isParsed()); // TODO
+
+        JetFileStubBuilder jetStubBuilder = new JetFileStubBuilder();
+
+        final StubElement lighterTree = jetStubBuilder.buildStubTree(file);
+        // assertFalse(fileNode.isParsed()); // TODO
+
+        final String lightStr = DebugUtil.stubTreeToString(lighterTree);
+
+        assertEquals("light tree differs", tree, lightStr);
+    }
 }