KT-2149 binary and text compilation in one pass

compiler/backend/src/org/jetbrains/jet/codegen/ClassBuilderFactories.java

@@ -17,6 +17,7 @@
 package org.jetbrains.jet.codegen;
 
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.asm4.ClassVisitor;
 import org.jetbrains.asm4.ClassWriter;
 import org.jetbrains.asm4.util.TraceClassVisitor;
 
@@ -28,6 +29,34 @@ import java.io.StringWriter;
  */
 public class ClassBuilderFactories {
 
+    public static ClassBuilderFactory TEST = new ClassBuilderFactory() {
+        @NotNull
+        @Override
+        public ClassBuilderMode getClassBuilderMode() {
+            return ClassBuilderMode.FULL;
+        }
+
+        @Override
+        public ClassBuilder newClassBuilder() {
+            return new TraceBuilder(new BinaryClassWriter());
+        }
+
+        @Override
+        public String asText(ClassBuilder builder) {
+            TraceClassVisitor visitor = (TraceClassVisitor) builder.getVisitor();
+
+            StringWriter writer = new StringWriter();
+            visitor.p.print(new PrintWriter(writer));
+
+            return writer.toString();
+        }
+
+        @Override
+        public byte[] asBytes(ClassBuilder builder) {
+            return ((TraceBuilder) builder).binary.toByteArray();
+        }
+    };
+
     public static ClassBuilderFactory TEXT = new ClassBuilderFactory() {
         @NotNull
         @Override
@@ -56,6 +85,9 @@ public class ClassBuilderFactories {
         }
     };
 
+    private ClassBuilderFactories() {
+    }
+
     public static ClassBuilderFactory binaries(final boolean stubs) {
         return new ClassBuilderFactory() {
             @NotNull
@@ -66,18 +98,7 @@ public class ClassBuilderFactories {
 
             @Override
             public ClassBuilder newClassBuilder() {
-                return new ClassBuilder.Concrete(new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS){
-                    @Override
-                    protected String getCommonSuperClass(String type1, String type2) {
-                        try {
-                            return super.getCommonSuperClass(type1, type2);
-                        }
-                        catch (Throwable t) {
-                            // @todo we might need at some point do more sofisticated handling
-                            return "java/lang/Object";
-                        }
-                    }
-                });
+                return new ClassBuilder.Concrete(new BinaryClassWriter());
             }
 
             @Override
@@ -92,4 +113,30 @@ public class ClassBuilderFactories {
             }
         };
     }
+
+    private static class BinaryClassWriter extends ClassWriter {
+        public BinaryClassWriter() {
+            super(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
+        }
+
+        @Override
+        protected String getCommonSuperClass(String type1, String type2) {
+            try {
+                return super.getCommonSuperClass(type1, type2);
+            }
+            catch (Throwable t) {
+                // @todo we might need at some point do more sofisticated handling
+                return "java/lang/Object";
+            }
+        }
+    }
+
+    private static class TraceBuilder extends ClassBuilder.Concrete {
+        public final BinaryClassWriter binary;
+
+        public TraceBuilder(BinaryClassWriter binary) {
+            super(new TraceClassVisitor(binary, new PrintWriter(new StringWriter())));
+            this.binary = binary;
+        }
+    }
 }

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

@@ -78,7 +78,7 @@ public class ArrayGenTest extends CodegenTestCase {
 
     public void testIntGenerics () throws Exception {
         loadText("class L<T>(var a : T) {} fun foo() = L<Int>(5).a");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
         Method foo = generateFunction();
         Object invoke = foo.invoke(null);
         System.out.println(invoke.getClass());

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

@@ -59,6 +59,7 @@ public abstract class CodegenTestCase extends UsefulTestCase {
     protected CodegenTestFiles myFiles;
 
     protected Object scriptInstance;
+    private GenerationState alreadyGenerated;
 
     protected void createEnvironmentWithMockJdkAndIdeaAnnotations() {
         if (myEnvironment != null) {
@@ -102,6 +103,7 @@ public abstract class CodegenTestCase extends UsefulTestCase {
         myFiles = null;
         myEnvironment = null;
         scriptInstance = null;
+        alreadyGenerated = null;
         super.tearDown();
     }
 
@@ -255,10 +257,15 @@ public abstract class CodegenTestCase extends UsefulTestCase {
     }
 
     protected String generateToText() {
-        return generateCommon(ClassBuilderFactories.TEXT).createText();
+        if(alreadyGenerated == null)
+            alreadyGenerated = generateCommon(ClassBuilderFactories.TEST);
+        return alreadyGenerated.createText();
     }
 
     private GenerationState generateCommon(ClassBuilderFactory classBuilderFactory) {
+        if(alreadyGenerated != null)
+            return alreadyGenerated;
+
         final AnalyzeExhaust analyzeExhaust = AnalyzerFacadeForJVM.analyzeFilesWithJavaIntegrationAndCheckForErrors(
                 myEnvironment.getProject(),
                 myFiles.getPsiFiles(),
@@ -269,6 +276,7 @@ public abstract class CodegenTestCase extends UsefulTestCase {
         AnalyzingUtils.throwExceptionOnErrors(analyzeExhaust.getBindingContext());
         GenerationState state = new GenerationState(myEnvironment.getProject(), classBuilderFactory, analyzeExhaust, myFiles.getPsiFiles());
         state.compileCorrectFiles(CompilationErrorHandler.THROW_EXCEPTION);
+        alreadyGenerated = state;
         return state;
     }
 
@@ -313,8 +321,7 @@ public abstract class CodegenTestCase extends UsefulTestCase {
     private GenerationState generateClassesInFileGetState() {
         GenerationState generationState;
         try {
-            ClassBuilderFactory classBuilderFactory = ClassBuilderFactories.binaries(false);
-            generationState = generateCommon(classBuilderFactory);
+            generationState = generateCommon(ClassBuilderFactories.TEST);
 
             if (DxChecker.RUN_DX_CHECKER) {
                 DxChecker.check(generationState.getFactory());

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

@@ -27,7 +27,7 @@ public class MultiFileGenTest extends CodegenTestCase {
 
     public void testSimple() {
         blackBoxMultiFile("/multi/simple/box.kt", "/multi/simple/ok.kt");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
     }
 
     public void testInternalVisibility() {

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

@@ -370,7 +370,7 @@ public class PrimitiveTypesTest extends CodegenTestCase {
 
     public void testKt756 () {
         blackBoxFile("regressions/kt756.jet");
-        System.out.println(generateToText());
+        //System.out.println(generateToText());
     }
 
     public void testKt757 () {