Extract Function: Type parameters inference

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

@@ -22,6 +22,7 @@ import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFileFactory;
 import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.util.LocalTimeCounter;
+import kotlin.KotlinPackage;
 import kotlin.Pair;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -30,6 +31,7 @@ import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.lexer.JetKeywordToken;
 import org.jetbrains.jet.plugin.JetFileType;
 
+import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
@@ -526,8 +528,10 @@ public class JetPsiFactory {
         static enum State {
             MODIFIERS,
             NAME,
+            RECEIVER,
             FIRST_PARAM,
             REST_PARAMS,
+            TYPE_CONSTRAINTS,
             BODY,
             DONE
         }
@@ -543,7 +547,7 @@ public class JetPsiFactory {
 
             sb.append(")");
 
-            state = State.BODY;
+            state = State.TYPE_CONSTRAINTS;
         }
 
         private void placeFun() {
@@ -554,7 +558,7 @@ public class JetPsiFactory {
             }
             sb.append("fun ");
 
-            state = State.NAME;
+            state = State.RECEIVER;
         }
 
         @NotNull
@@ -567,23 +571,28 @@ public class JetPsiFactory {
         }
 
         @NotNull
-        public FunctionBuilder receiver(@NotNull String receiverType) {
+        public FunctionBuilder typeParams(@NotNull Collection<String> values) {
             placeFun();
-            sb.append(receiverType).append(".");
+            if (!values.isEmpty()) {
+                sb.append(KotlinPackage.makeString(values, ", ", "<", "> ", -1, ""));
+            }
 
             return this;
         }
 
         @NotNull
-        public FunctionBuilder noReceiver() {
-            placeFun();
+        public FunctionBuilder receiver(@NotNull String receiverType) {
+            assert state == State.RECEIVER;
+
+            sb.append(receiverType).append(".");
+            state = State.NAME;
 
             return this;
         }
 
         @NotNull
         public FunctionBuilder name(@NotNull String name) {
-            assert state == State.NAME;
+            assert state == State.NAME || state == State.RECEIVER;
 
             sb.append(name).append("(");
             state = State.FIRST_PARAM;
@@ -621,9 +630,21 @@ public class JetPsiFactory {
             return this;
         }
 
+        @NotNull
+        public FunctionBuilder typeConstraints(@NotNull Collection<String> values) {
+            assert state == State.TYPE_CONSTRAINTS;
+
+            if (!values.isEmpty()) {
+                sb.append(KotlinPackage.makeString(values, ", ", " where ", "", -1, ""));
+            }
+            state = State.BODY;
+
+            return this;
+        }
+
         @NotNull
         public FunctionBuilder simpleBody(@NotNull String body) {
-            assert state == State.BODY;
+            assert state == State.BODY || state == State.TYPE_CONSTRAINTS;
 
             sb.append(" = ").append(body);
             state = State.DONE;
@@ -633,7 +654,7 @@ public class JetPsiFactory {
 
         @NotNull
         public FunctionBuilder blockBody(@NotNull String body) {
-            assert state == State.BODY;
+            assert state == State.BODY || state == State.TYPE_CONSTRAINTS;
 
             sb.append(" {\n").append(body).append("\n}");
             state = State.DONE;

core/util.runtime/src/org/jetbrains/jet/utils/DFS.java

@@ -125,17 +125,27 @@ public class DFS {
         }
     }
 
-    public static abstract class NodeHandlerWithListResult<N, R> extends AbstractNodeHandler<N, List<R>> {
+    public static abstract class CollectingNodeHandler<N, R, C extends Iterable<R>> extends AbstractNodeHandler<N, C> {
         @NotNull
-        protected final LinkedList<R> result = new LinkedList<R>();
+        protected final C result;
+
+        protected CollectingNodeHandler(@NotNull C result) {
+            this.result = result;
+        }
 
         @Override
         @NotNull
-        public List<R> result() {
+        public C result() {
             return result;
         }
     }
 
+    public static abstract class NodeHandlerWithListResult<N, R> extends CollectingNodeHandler<N, R, LinkedList<R>> {
+        protected NodeHandlerWithListResult() {
+            super(new LinkedList<R>());
+        }
+    }
+
     public static class TopologicalOrder<N> extends NodeHandlerWithListResult<N, N> {
         @Override
         public void afterChildren(N current) {

idea/src/org/jetbrains/jet/plugin/refactoring/extractFunction/ExtractionDescriptor.kt

@@ -29,6 +29,8 @@ import org.jetbrains.jet.lang.resolve.name.FqName
 import org.jetbrains.jet.plugin.references.JetSimpleNameReference.ShorteningMode
 import org.jetbrains.jet.lang.psi.psiUtil.replaced
 import org.jetbrains.jet.lang.psi.JetQualifiedExpression
+import org.jetbrains.jet.lang.psi.JetTypeParameter
+import org.jetbrains.jet.lang.psi.JetTypeConstraint
 
 data class Parameter(
         val argumentText: String,
@@ -40,6 +42,11 @@ data class Parameter(
     val nameForRef: String get() = mirrorVarName ?: name
 }
 
+data class TypeParameter(
+        val originalDeclaration: JetTypeParameter,
+        val originalConstraints: List<JetTypeConstraint>
+)
+
 trait Replacement: Function1<JetElement, JetElement>
 
 trait ParameterReplacement : Replacement {
@@ -120,6 +127,7 @@ data class ExtractionDescriptor(
         val visibility: String,
         val parameters: List<Parameter>,
         val receiverParameter: Parameter?,
+        val typeParameters: List<TypeParameter>,
         val replacementMap: Map<Int, Replacement>,
         val controlFlow: ControlFlow
 )

idea/src/org/jetbrains/jet/plugin/refactoring/extractFunction/extractFunctionUtils.kt

@@ -86,9 +86,20 @@ import java.util.Collections
 import com.intellij.psi.PsiNamedElement
 import org.jetbrains.jet.lang.descriptors.impl.LocalVariableDescriptor
 import org.jetbrains.jet.lang.types.ErrorUtils
+import org.jetbrains.jet.lang.psi.JetTypeParameter
+import org.jetbrains.jet.lang.psi.JetTypeConstraint
+import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptor
+import org.jetbrains.jet.utils.DFS
+import org.jetbrains.jet.utils.DFS.Neighbors
+import org.jetbrains.jet.utils.DFS.VisitedWithSet
+import org.jetbrains.jet.utils.DFS.AbstractNodeHandler
+import org.jetbrains.jet.utils.DFS.CollectingNodeHandler
+import org.jetbrains.jet.lang.resolve.BindingContextUtils
 import org.jetbrains.jet.plugin.caches.resolve.getLazyResolveSession
 import org.jetbrains.jet.plugin.project.AnalyzerFacadeWithCache
 import org.jetbrains.jet.lang.diagnostics.Errors
+import org.jetbrains.jet.lang.psi.JetTypeReference
+import org.jetbrains.jet.lang.psi.JetTypeParameterListOwner
 import org.jetbrains.jet.lang.descriptors.FunctionDescriptor
 
 private val DEFAULT_FUNCTION_NAME = "myFun"
@@ -227,13 +238,75 @@ private fun ExtractionData.createTemporaryCodeBlock(): JetBlockExpression {
     return tmpFunction.getBodyExpression() as JetBlockExpression
 }
 
+private fun JetType.collectReferencedTypes(): List<JetType> {
+    return DFS.dfsFromNode(
+            this,
+            object: Neighbors<JetType> {
+                override fun getNeighbors(current: JetType): Iterable<JetType> = current.getArguments().map { it.getType() }
+            },
+            VisitedWithSet(),
+            object: CollectingNodeHandler<JetType, JetType, ArrayList<JetType>>(ArrayList()) {
+                override fun afterChildren(current: JetType) {
+                    result.add(current)
+                }
+            }
+    )!!
+}
+
+fun JetTypeParameter.collectRelevantConstraints(): List<JetTypeConstraint> {
+    val typeConstraints = getParentByType(javaClass<JetTypeParameterListOwner>())?.getTypeConstraints()
+    if (typeConstraints == null) return Collections.emptyList()
+    return typeConstraints.filter { it.getSubjectTypeParameterName()?.getReference()?.resolve() == this}
+}
+
+fun TypeParameter.collectReferencedTypes(bindingContext: BindingContext): List<JetType> {
+    val typeRefs = ArrayList<JetTypeReference>()
+    originalDeclaration.getExtendsBound()?.let { typeRefs.add(it) }
+    originalConstraints
+            .map { it.getBoundTypeReference() }
+            .filterNotNullTo(typeRefs)
+
+    return typeRefs
+            .map { bindingContext[BindingContext.TYPE, it] }
+            .filterNotNull()
+}
+
+private fun JetType.processTypeIfExtractable(
+        bindingContext: BindingContext,
+        typeParameters: MutableSet<TypeParameter>,
+        nonDenotableTypes: HashSet<JetType>
+): Boolean {
+    return collectReferencedTypes().fold(true) { (extractable, typeToCheck) ->
+        val parameterTypeDescriptor = typeToCheck.getConstructor().getDeclarationDescriptor() as? TypeParameterDescriptor
+        val typeParameter = parameterTypeDescriptor?.let {
+            BindingContextUtils.descriptorToDeclaration(bindingContext, it)
+        } as? JetTypeParameter
+
+        when {
+            typeParameter != null -> {
+                typeParameters.add(TypeParameter(typeParameter, typeParameter.collectRelevantConstraints()))
+                extractable
+            }
+
+            typeToCheck.canBeReferencedViaImport() ->
+                extractable
+
+            else -> {
+                nonDenotableTypes.add(typeToCheck)
+                false
+            }
+        }
+    }
+}
+
 private fun ExtractionData.inferParametersInfo(
         commonParent: PsiElement,
         localInstructions: List<Instruction>,
         bindingContext: BindingContext,
         resultType: JetType?,
         replacementMap: MutableMap<Int, Replacement>,
-        parameters: MutableSet<Parameter>
+        parameters: MutableSet<Parameter>,
+        typeParameters: MutableSet<TypeParameter>
 ): MaybeError<ExtractionDescriptor, String>? {
     val varNameValidator = JetNameValidatorImpl(
             commonParent.getParentByType(javaClass<JetExpression>()),
@@ -244,6 +317,7 @@ private fun ExtractionData.inferParametersInfo(
 
     val extractedDescriptorToParameter = HashMap<DeclarationDescriptor, Parameter>()
     val nonDenotableTypes = HashSet<JetType>()
+
     for (refInfo in getBrokenReferencesInfo(createTemporaryCodeBlock())) {
         val (originalRef, originalDeclaration, originalDescriptor, resolvedCall) = refInfo.resolveResult
         val ref = refInfo.refExpr
@@ -439,8 +513,10 @@ fun ExtractionData.performAnalysis(): Maybe<ExtractionDescriptor, String> {
 
     val replacementMap = HashMap<Int, Replacement>()
     val parameters = HashSet<Parameter>()
-    val parameterError =
-            inferParametersInfo(commonParent, localInstructions, bindingContext, inferredResultType, replacementMap, parameters)
+    val typeParameters = HashSet<TypeParameter>()
+    val parameterError = inferParametersInfo(
+            commonParent, localInstructions, bindingContext, inferredResultType, replacementMap, parameters, typeParameters
+    )
     if (parameterError != null) return parameterError
 
     val controlFlowInfo = localInstructions.analyzeControlFlow(bindingContext, parameters, inferredResultType)
@@ -465,7 +541,16 @@ fun ExtractionData.performAnalysis(): Maybe<ExtractionDescriptor, String> {
     receiverParameter?.let { parameters.remove(it) }
 
     return MaybeValue(
-            ExtractionDescriptor(this, functionName, "", parameters.sortBy { it.name }, receiverParameter, replacementMap, controlFlow)
+            ExtractionDescriptor(
+                    this,
+                    functionName,
+                    "",
+                    parameters.sortBy { it.name },
+                    receiverParameter,
+                    typeParameters.sortBy { it.originalDeclaration.getName()!! },
+                    replacementMap,
+                    controlFlow
+            )
     )
 }
 

idea/src/org/jetbrains/jet/plugin/refactoring/extractFunction/ui/KotlinExtractFunctionDialog.java

@@ -212,6 +212,7 @@ public class KotlinExtractFunctionDialog extends DialogWrapper {
                 getVisibility(),
                 ContainerUtil.newArrayList(oldToNewParameters.values()),
                 descriptor.getReceiverParameter(),
+                descriptor.getTypeParameters(),
                 replacementMap,
                 controlFlow
         );

idea/testData/refactoring/extractFunction/typeParameters/localClassInBound.kt

@@ -0,0 +1,8 @@
+// NEXT_SIBLING:
+fun foo() {
+    open class X(val x: Int)
+
+    fun bar<T: X>(t: T): Int {
+        return <selection>t.x + 1</selection>
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/localClassInBound.kt.conflicts

@@ -0,0 +1 @@
+Cannot extract method since following types are not denotable in the target scope: foo.X

idea/testData/refactoring/extractFunction/typeParameters/localClassInTypeConstraint.kt

@@ -0,0 +1,8 @@
+// NEXT_SIBLING:
+fun foo() {
+    open class X(val x: Int)
+
+    fun bar<T>(t: T): Int where T: X {
+        return <selection>t.x + 1</selection>
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/localClassInTypeConstraint.kt.conflicts

@@ -0,0 +1 @@
+Cannot extract method since following types are not denotable in the target scope: foo.X

idea/testData/refactoring/extractFunction/typeParameters/simpleTypeParameter.kt

@@ -0,0 +1,8 @@
+open class Data(val x: Int)
+
+class Pair<A, B>(val a: A, val b: B)
+
+// NEXT_SIBLING:
+fun foo<V: Data>(v: V): Pair<Int, V> {
+    return <selection>Pair(v.x + 10, v)</selection>
+}

idea/testData/refactoring/extractFunction/typeParameters/simpleTypeParameter.kt.after

@@ -0,0 +1,12 @@
+open class Data(val x: Int)
+
+class Pair<A, B>(val a: A, val b: B)
+
+// NEXT_SIBLING:
+fun <V : Data> pair(v: V): Pair<Int, V> {
+    return Pair(v.x + 10, v)
+}
+
+fun foo<V: Data>(v: V): Pair<Int, V> {
+    return pair(v)
+}

idea/testData/refactoring/extractFunction/typeParameters/simpleTypeParameterWithConstraint.kt

@@ -0,0 +1,9 @@
+open class Data(val x: Int)
+trait DataEx
+
+class Pair<A, B>(val a: A, val b: B)
+
+// NEXT_SIBLING:
+fun foo<V: Data>(v: V): Pair<Int, V> where V: DataEx {
+    return <selection>Pair(v.x + 10, v)</selection>
+}

idea/testData/refactoring/extractFunction/typeParameters/simpleTypeParameterWithConstraint.kt.after

@@ -0,0 +1,13 @@
+open class Data(val x: Int)
+trait DataEx
+
+class Pair<A, B>(val a: A, val b: B)
+
+// NEXT_SIBLING:
+fun <V : Data> pair(v: V): Pair<Int, V> where V : DataEx {
+    return Pair(v.x + 10, v)
+}
+
+fun foo<V: Data>(v: V): Pair<Int, V> where V: DataEx {
+    return pair(v)
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParamInArgument.kt

@@ -0,0 +1,8 @@
+class Data<T>(val t: Int)
+
+// NEXT_SIBLING:
+class A<T> {
+    fun foo(d: Data<T>): Int {
+        return <selection>d.t + 1</selection>
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParamInArgument.kt.after

@@ -0,0 +1,12 @@
+class Data<T>(val t: Int)
+
+// NEXT_SIBLING:
+fun <T> i(d: Data<T>): Int {
+    return d.t + 1
+}
+
+class A<T> {
+    fun foo(d: Data<T>): Int {
+        return i(d)
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined1.kt

@@ -0,0 +1,12 @@
+open class Data(val x: Int)
+trait DataEx
+trait DataExEx
+
+// NEXT_SIBLING:
+class A<T: Data>(val t: T) where T: DataEx {
+    inner class B<U: Data>(val u: U) where U: DataExEx {
+        fun foo<V: Data>(v: V): Int where V: DataEx {
+            return <selection>t.x + u.x + v.x</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined1.kt.after

@@ -0,0 +1,16 @@
+open class Data(val x: Int)
+trait DataEx
+trait DataExEx
+
+// NEXT_SIBLING:
+fun <T : Data, U : Data, V : Data> i(a: A<T>, b: A.B<U>, v: V): Int where T : DataEx, U : DataExEx, V : DataEx {
+    return a.t.x + b.u.x + v.x
+}
+
+class A<T: Data>(val t: T) where T: DataEx {
+    inner class B<U: Data>(val u: U) where U: DataExEx {
+        fun foo<V: Data>(v: V): Int where V: DataEx {
+            return i(this@A, this@B, v)
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined2.kt

@@ -0,0 +1,12 @@
+open class Data(val x: Int)
+trait DataEx
+trait DataExEx
+
+class A<T: Data>(val t: T) where T: DataEx {
+    // NEXT_SIBLING:
+    inner class B<U: Data>(val u: U) where U: DataExEx {
+        fun foo<V: Data>(v: V): Int where V: DataEx {
+            return <selection>t.x + u.x + v.x</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined2.kt.after

@@ -0,0 +1,16 @@
+open class Data(val x: Int)
+trait DataEx
+trait DataExEx
+
+class A<T: Data>(val t: T) where T: DataEx {
+    // NEXT_SIBLING:
+    fun <U : Data, V : Data> B<U>.i(v: V): Int where U : DataExEx, V : DataEx {
+        return t.x + u.x + v.x
+    }
+
+    inner class B<U: Data>(val u: U) where U: DataExEx {
+        fun foo<V: Data>(v: V): Int where V: DataEx {
+            return i(v)
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined3.kt

@@ -0,0 +1,12 @@
+open class Data(val x: Int)
+trait DataEx
+trait DataExEx
+
+class A<T: Data>(val t: T) where T: DataEx {
+    inner class B<U: Data>(val u: U) where U: DataExEx {
+        // NEXT_SIBLING:
+        fun foo<V: Data>(v: V): Int where V: DataEx {
+            return <selection>t.x + u.x + v.x</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined3.kt.after

@@ -0,0 +1,16 @@
+open class Data(val x: Int)
+trait DataEx
+trait DataExEx
+
+class A<T: Data>(val t: T) where T: DataEx {
+    inner class B<U: Data>(val u: U) where U: DataExEx {
+        // NEXT_SIBLING:
+        fun <V : Data> i(v: V): Int where V : DataEx {
+            return t.x + u.x + v.x
+        }
+
+        fun foo<V: Data>(v: V): Int where V: DataEx {
+            return i(v)
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined1.kt

@@ -0,0 +1,10 @@
+open class Data(val x: Int)
+
+// NEXT_SIBLING:
+class A<T: Data>(val t: T) {
+    inner class B<U: Data>(val u: U) {
+        fun foo<V: Data>(v: V): Int {
+            return <selection>t.x + u.x + v.x</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined1.kt.after

@@ -0,0 +1,14 @@
+open class Data(val x: Int)
+
+// NEXT_SIBLING:
+fun <T : Data, U : Data, V : Data> i(a: A<T>, b: A.B<U>, v: V): Int {
+    return a.t.x + b.u.x + v.x
+}
+
+class A<T: Data>(val t: T) {
+    inner class B<U: Data>(val u: U) {
+        fun foo<V: Data>(v: V): Int {
+            return i(this@A, this@B, v)
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined2.kt

@@ -0,0 +1,10 @@
+open class Data(val x: Int)
+
+class A<T: Data>(val t: T) {
+    // NEXT_SIBLING:
+    inner class B<U: Data>(val u: U) {
+        fun foo<V: Data>(v: V): Int {
+            return <selection>t.x + u.x + v.x</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined2.kt.after

@@ -0,0 +1,14 @@
+open class Data(val x: Int)
+
+class A<T: Data>(val t: T) {
+    // NEXT_SIBLING:
+    fun <U : Data, V : Data> B<U>.i(v: V): Int {
+        return t.x + u.x + v.x
+    }
+
+    inner class B<U: Data>(val u: U) {
+        fun foo<V: Data>(v: V): Int {
+            return i(v)
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined3.kt

@@ -0,0 +1,10 @@
+open class Data(val x: Int)
+
+class A<T: Data>(val t: T) {
+    inner class B<U: Data>(val u: U) {
+        // NEXT_SIBLING:
+        fun foo<V: Data>(v: V): Int {
+            return <selection>t.x + u.x + v.x</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined3.kt.after

@@ -0,0 +1,14 @@
+open class Data(val x: Int)
+
+class A<T: Data>(val t: T) {
+    inner class B<U: Data>(val u: U) {
+        // NEXT_SIBLING:
+        fun <V : Data> i(v: V): Int {
+            return t.x + u.x + v.x
+        }
+
+        fun foo<V: Data>(v: V): Int {
+            return i(v)
+        }
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombinedAndThis.kt

@@ -0,0 +1,9 @@
+open class Data(val x: Int)
+trait DataEx
+
+// NEXT_SIBLING:
+class A<T: Data>(val t: T) where T: DataEx {
+    fun foo<V: Data>(v: V): Int {
+        return <selection>t.x + v.x</selection>
+    }
+}

idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombinedAndThis.kt.after

@@ -0,0 +1,13 @@
+open class Data(val x: Int)
+trait DataEx
+
+// NEXT_SIBLING:
+fun <T : Data, V : Data> A<T>.i(v: V): Int where T : DataEx {
+    return t.x + v.x
+}
+
+class A<T: Data>(val t: T) where T: DataEx {
+    fun foo<V: Data>(v: V): Int {
+        return i(v)
+    }
+}

idea/tests/org/jetbrains/jet/plugin/refactoring/introduce/introduceVariable/JetExtractionTestGenerated.java

@@ -186,7 +186,7 @@ public class JetExtractionTestGenerated extends AbstractJetExtractionTest {
     }
     
     @TestMetadata("idea/testData/refactoring/extractFunction")
-    @InnerTestClasses({ExtractFunction.Basic.class, ExtractFunction.ControlFlow.class, ExtractFunction.Parameters.class})
+    @InnerTestClasses({ExtractFunction.Basic.class, ExtractFunction.ControlFlow.class, ExtractFunction.Parameters.class, ExtractFunction.TypeParameters.class})
     public static class ExtractFunction extends AbstractJetExtractionTest {
         public void testAllFilesPresentInExtractFunction() throws Exception {
             JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.TestsPackage", new File("idea/testData/refactoring/extractFunction"), Pattern.compile("^(.+)\\.kt$"), true);
@@ -618,12 +618,81 @@ public class JetExtractionTestGenerated extends AbstractJetExtractionTest {
             }
         }
         
+        @TestMetadata("idea/testData/refactoring/extractFunction/typeParameters")
+        public static class TypeParameters extends AbstractJetExtractionTest {
+            public void testAllFilesPresentInTypeParameters() throws Exception {
+                JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.TestsPackage", new File("idea/testData/refactoring/extractFunction/typeParameters"), Pattern.compile("^(.+)\\.kt$"), true);
+            }
+            
+            @TestMetadata("localClassInBound.kt")
+            public void testLocalClassInBound() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/localClassInBound.kt");
+            }
+            
+            @TestMetadata("localClassInTypeConstraint.kt")
+            public void testLocalClassInTypeConstraint() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/localClassInTypeConstraint.kt");
+            }
+            
+            @TestMetadata("simpleTypeParameter.kt")
+            public void testSimpleTypeParameter() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/simpleTypeParameter.kt");
+            }
+            
+            @TestMetadata("simpleTypeParameterWithConstraint.kt")
+            public void testSimpleTypeParameterWithConstraint() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/simpleTypeParameterWithConstraint.kt");
+            }
+            
+            @TestMetadata("typeParamInArgument.kt")
+            public void testTypeParamInArgument() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParamInArgument.kt");
+            }
+            
+            @TestMetadata("typeParametersAndConstraintsCombined1.kt")
+            public void testTypeParametersAndConstraintsCombined1() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined1.kt");
+            }
+            
+            @TestMetadata("typeParametersAndConstraintsCombined2.kt")
+            public void testTypeParametersAndConstraintsCombined2() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined2.kt");
+            }
+            
+            @TestMetadata("typeParametersAndConstraintsCombined3.kt")
+            public void testTypeParametersAndConstraintsCombined3() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersAndConstraintsCombined3.kt");
+            }
+            
+            @TestMetadata("typeParametersCombined1.kt")
+            public void testTypeParametersCombined1() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined1.kt");
+            }
+            
+            @TestMetadata("typeParametersCombined2.kt")
+            public void testTypeParametersCombined2() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined2.kt");
+            }
+            
+            @TestMetadata("typeParametersCombined3.kt")
+            public void testTypeParametersCombined3() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombined3.kt");
+            }
+            
+            @TestMetadata("typeParametersCombinedAndThis.kt")
+            public void testTypeParametersCombinedAndThis() throws Exception {
+                doExtractFunctionTest("idea/testData/refactoring/extractFunction/typeParameters/typeParametersCombinedAndThis.kt");
+            }
+            
+        }
+        
         public static Test innerSuite() {
             TestSuite suite = new TestSuite("ExtractFunction");
             suite.addTestSuite(ExtractFunction.class);
             suite.addTestSuite(Basic.class);
             suite.addTest(ControlFlow.innerSuite());
             suite.addTest(Parameters.innerSuite());
+            suite.addTestSuite(TypeParameters.class);
             return suite;
         }
     }