diff --git a/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java b/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
index e6faecf1c8d..e97b0529bd2 100644
--- a/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
+++ b/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
@@ -53,7 +53,7 @@ public class ExpressionCodegen extends JetVisitor {
     private final FrameMap myMap;
     private final JetTypeMapper typeMapper;
     private final Type returnType;
-    private final ClassDescriptor contextType;
+    private final DeclarationDescriptor contextType;
     private final OwnerKind contextKind;
     private final BindingContext bindingContext;
 
@@ -62,7 +62,7 @@ public class ExpressionCodegen extends JetVisitor {
                              FrameMap myMap,
                              JetTypeMapper typeMapper,
                              Type returnType,
-                             ClassDescriptor contextType,
+                             DeclarationDescriptor contextType,
                              OwnerKind contextKind) {
         this.myMap = myMap;
         this.typeMapper = typeMapper;
@@ -1194,17 +1194,60 @@ public class ExpressionCodegen extends JetVisitor {
             throw new UnsupportedOperationException("Cannot generate this expression in top level context");
         }
 
+        ClassDescriptor contextClass = (ClassDescriptor) contextType;
         if (contextKind == OwnerKind.IMPLEMENTATION) {
-            v.load(0, JetTypeMapper.jetImplementationType(contextType));
+            v.load(0, JetTypeMapper.jetImplementationType(contextClass));
         }
         else if (contextKind == OwnerKind.DELEGATING_IMPLEMENTATION) {
-            v.getfield(JetTypeMapper.jvmName(contextType, contextKind), "$this", JetTypeMapper.jetInterfaceType(contextType).getDescriptor());
+            v.getfield(JetTypeMapper.jvmName(contextClass, contextKind), "$this", JetTypeMapper.jetInterfaceType(contextClass).getDescriptor());
         }
         else {
             throw new UnsupportedOperationException("Unknown kind: " + contextKind);
         }
     }
 
+    @Override
+    public void visitTryExpression(JetTryExpression expression) {
+        if (expression.getFinallyBlock() != null) {
+            throw new UnsupportedOperationException("finally block in try/catch not yet supported");
+        }
+        Label tryStart = new Label();
+        v.mark(tryStart);
+        gen(expression.getTryBlock(), Type.VOID_TYPE);
+        Label tryEnd = new Label();
+        v.mark(tryEnd);
+        Label end = new Label();
+        v.goTo(end);         // TODO don't generate goto if there's no code following try/catch
+        for (JetCatchClause clause : expression.getCatchClauses()) {
+            Label clauseStart = new Label();
+            v.mark(clauseStart);
+
+            VariableDescriptor descriptor = bindingContext.getVariableDescriptor(clause.getCatchParameter());
+            Type descriptorType = typeMapper.mapType(descriptor.getOutType());
+            myMap.enter(descriptor, 1);
+            int index = myMap.getIndex(descriptor);
+            v.store(index, descriptorType);
+
+            gen(clause.getCatchBody(), Type.VOID_TYPE);
+            v.goTo(end);     // TODO don't generate goto if there's no code following try/catch
+
+            myMap.leave(descriptor);
+            v.visitTryCatchBlock(tryStart, tryEnd, clauseStart, descriptorType.getInternalName());
+        }
+        v.mark(end);
+    }
+
+    @Override
+    public void visitBinaryWithTypeRHSExpression(JetBinaryExpressionWithTypeRHS expression) {
+        JetSimpleNameExpression operationSign = expression.getOperationSign();
+        if (operationSign.getReferencedNameElementType() == JetTokens.COLON) {
+            gen(expression.getLeft());
+        }
+        else {
+            throw new UnsupportedOperationException("should generate a cast, but don't know how");
+        }
+    }
+
     private static class CompilationException extends RuntimeException {
     }
 }
diff --git a/idea/src/org/jetbrains/jet/codegen/FunctionCodegen.java b/idea/src/org/jetbrains/jet/codegen/FunctionCodegen.java
index 74eba882f04..e45f4a34e6d 100644
--- a/idea/src/org/jetbrains/jet/codegen/FunctionCodegen.java
+++ b/idea/src/org/jetbrains/jet/codegen/FunctionCodegen.java
@@ -1,6 +1,7 @@
 package org.jetbrains.jet.codegen;
 
 import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
+import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
 import org.jetbrains.jet.lang.descriptors.ValueParameterDescriptor;
 import org.jetbrains.jet.lang.psi.*;
 import org.jetbrains.jet.lang.resolve.BindingContext;
@@ -46,7 +47,9 @@ public class FunctionCodegen {
         boolean isAbstract = kind == OwnerKind.INTERFACE || bodyExpression == null;
         if (isAbstract) flags |= Opcodes.ACC_ABSTRACT;
 
-        ClassDescriptor ownerClass = owner instanceof JetClass ? bindingContext.getClassDescriptor((JetClass) owner) : null;
+        DeclarationDescriptor contextDescriptor = owner instanceof JetClass
+                ? bindingContext.getClassDescriptor((JetClass) owner)
+                : bindingContext.getNamespaceDescriptor((JetNamespace) owner);
 
         final MethodVisitor mv = v.visitMethod(flags, jvmSignature.getName(), jvmSignature.getDescriptor(), null, null);
         if (kind != OwnerKind.INTERFACE) {
@@ -63,7 +66,7 @@ public class FunctionCodegen {
                 frameMap.enter(parameter, argTypes[i].getSize());
             }
 
-            ExpressionCodegen codegen = new ExpressionCodegen(mv, bindingContext, frameMap, typeMapper, jvmSignature.getReturnType(), ownerClass, kind);
+            ExpressionCodegen codegen = new ExpressionCodegen(mv, bindingContext, frameMap, typeMapper, jvmSignature.getReturnType(), contextDescriptor, kind);
             if (kind instanceof OwnerKind.DelegateKind) {
                 OwnerKind.DelegateKind dk = (OwnerKind.DelegateKind) kind;
                 InstructionAdapter iv = new InstructionAdapter(mv);
diff --git a/idea/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java b/idea/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
index c4f2fdd30c1..bf183752557 100644
--- a/idea/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
+++ b/idea/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
@@ -103,8 +103,9 @@ public class ControlStructuresTest extends CodegenTestCase {
 
     public void testTryCatch() throws Exception {
         loadFile("tryCatch.jet");
+        System.out.println(generateToText());
         final Method main = generateFunction();
         assertEquals("no message", main.invoke(null, "0"));
-        assertEquals("xxx", main.invoke(null, "a"));
+        assertEquals("For input string: \"a\"", main.invoke(null, "a"));
     }
 }