fix for multiple evaluation of expression on multi var declaration

compiler/tests/org/jetbrains/jet/codegen/ComponentGenTest.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.codegen;
+
+import org.jetbrains.jet.ConfigurationKind;
+
+/**
+ * This test is separate from MultiDeclTestGenerated because we specifically test generated bytecode
+ * that expression does not evaluated several time
+ */
+public class ComponentGenTest extends CodegenTestCase {
+    public void testComponent() {
+        createEnvironmentWithMockJdkAndIdeaAnnotations(ConfigurationKind.JDK_ONLY);
+        blackBoxFile("/multiDecl/component.kt");
+
+        String asm = generateToText();
+        //System.out.println(asm);
+        final String pattern = "NEW S\n";
+        final int index = asm.indexOf(pattern);
+        asm = asm.substring(index + pattern.length());
+        assertEquals(-1, asm.indexOf(pattern));
+    }
+}

compiler/tests/org/jetbrains/jet/codegen/MultiDeclTestGenerated.java

@@ -13,17 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.jetbrains.jet.codegen;
 
-import junit.framework.Assert;
 import junit.framework.Test;
 import junit.framework.TestSuite;
-
-import java.io.File;
 import org.jetbrains.jet.JetTestUtils;
 import org.jetbrains.jet.test.TestMetadata;
 
-import org.jetbrains.jet.codegen.AbstractMultiDeclTestCase;
+import java.io.File;
 
 /** This class is generated by {@link org.jetbrains.jet.codegen.AbstractMultiDeclTestCase}. DO NOT MODIFY MANUALLY */
 @TestMetadata("compiler/testData/codegen/multiDecl")
@@ -37,6 +35,11 @@ public class MultiDeclTestGenerated extends AbstractMultiDeclTestCase {
         blackBoxFileByFullPath("compiler/testData/codegen/multiDecl/ComplexInitializer.kt");
     }
     
+    @TestMetadata("component.kt")
+    public void testComponent() throws Exception {
+        blackBoxFileByFullPath("compiler/testData/codegen/multiDecl/component.kt");
+    }
+    
     @TestMetadata("SimpleVals.kt")
     public void testSimpleVals() throws Exception {
         blackBoxFileByFullPath("compiler/testData/codegen/multiDecl/SimpleVals.kt");