diff --git a/idea/src/org/jetbrains/jet/lang/resolve/AnalyzingUtils.java b/idea/src/org/jetbrains/jet/lang/resolve/AnalyzingUtils.java
index d20100828ad..0956d5b91f2 100644
--- a/idea/src/org/jetbrains/jet/lang/resolve/AnalyzingUtils.java
+++ b/idea/src/org/jetbrains/jet/lang/resolve/AnalyzingUtils.java
@@ -1,6 +1,9 @@
 package org.jetbrains.jet.lang.resolve;
 
 import com.intellij.openapi.project.Project;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiElementVisitor;
+import com.intellij.psi.PsiErrorElement;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.ErrorHandler;
 import org.jetbrains.jet.lang.JetSemanticServices;
@@ -15,6 +18,20 @@ import org.jetbrains.jet.lang.types.ModuleDescriptor;
  * @author abreslav
  */
 public class AnalyzingUtils {
+    public static void checkForSyntacticErrors(@NotNull PsiElement root) {
+        root.acceptChildren(new PsiElementVisitor() {
+            @Override
+            public void visitElement(PsiElement element) {
+                element.acceptChildren(this);
+            }
+
+            @Override
+            public void visitErrorElement(PsiErrorElement element) {
+                throw new IllegalArgumentException(element.getErrorDescription());
+            }
+        });
+    }
+
     public static BindingContext analyzeFile(@NotNull JetFile file, @NotNull ErrorHandler errorHandler) {
         JetNamespace rootNamespace = file.getRootNamespace();
         return analyzeNamespace(rootNamespace, errorHandler, JetControlFlowDataTraceFactory.EMPTY);
diff --git a/idea/tests/org/jetbrains/jet/codegen/CodegenTestCase.java b/idea/tests/org/jetbrains/jet/codegen/CodegenTestCase.java
index 56375b2f5f1..a62c81fc4a0 100644
--- a/idea/tests/org/jetbrains/jet/codegen/CodegenTestCase.java
+++ b/idea/tests/org/jetbrains/jet/codegen/CodegenTestCase.java
@@ -7,6 +7,7 @@ import org.jetbrains.jet.JetLightProjectDescriptor;
 import org.jetbrains.jet.lang.JetFileType;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.psi.JetNamespace;
+import org.jetbrains.jet.lang.resolve.AnalyzingUtils;
 import org.jetbrains.jet.parsing.JetParsingTest;
 
 import java.lang.reflect.Method;
@@ -41,6 +42,7 @@ public abstract class CodegenTestCase extends LightCodeInsightFixtureTestCase {
     protected String generateToText() {
         Codegens state = new Codegens(getProject(), true);
         JetFile jetFile = (JetFile) myFixture.getFile();
+        AnalyzingUtils.checkForSyntacticErrors(jetFile);
         JetNamespace namespace = jetFile.getRootNamespace();
         NamespaceCodegen codegen = state.forNamespace(namespace);
         codegen.generate(namespace);
@@ -80,6 +82,7 @@ public abstract class CodegenTestCase extends LightCodeInsightFixtureTestCase {
     protected Codegens generateClassesInFile() {
         Codegens state = new Codegens(getProject(), false);
         JetFile jetFile = (JetFile) myFixture.getFile();
+        AnalyzingUtils.checkForSyntacticErrors(jetFile);
         final JetNamespace namespace = jetFile.getRootNamespace();
 
         NamespaceCodegen codegen = state.forNamespace(namespace);
diff --git a/idea/tests/org/jetbrains/jet/codegen/PrimitiveTypesTest.java b/idea/tests/org/jetbrains/jet/codegen/PrimitiveTypesTest.java
index 16f256eb009..786fb584c8a 100644
--- a/idea/tests/org/jetbrains/jet/codegen/PrimitiveTypesTest.java
+++ b/idea/tests/org/jetbrains/jet/codegen/PrimitiveTypesTest.java
@@ -157,19 +157,19 @@ public class PrimitiveTypesTest extends CodegenTestCase {
     }
 
     public void testPreIncrement() throws Exception {
-        loadText("fun foo(a: Int): Int { var x = a; ++x; return x;");
+        loadText("fun foo(a: Int): Int { var x = a; ++x; return x;}");
         final Method main = generateFunction();
         assertEquals(11, main.invoke(null, 10));
     }
 
     public void testPreIncrementValue() throws Exception {
-        loadText("fun foo(a: Int): Int { var x = a; return ++x;");
+        loadText("fun foo(a: Int): Int { var x = a; return ++x;}");
         final Method main = generateFunction();
         assertEquals(11, main.invoke(null, 10));
     }
 
     public void testPreDecrement() throws Exception {
-        loadText("fun foo(a: Int): Int { return --a;");
+        loadText("fun foo(a: Int): Int { return --a;}");
         final Method main = generateFunction();
         assertEquals(9, main.invoke(null, 10));
     }