Added incremental compilation flag. For publishing intermediate implementation.

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

@@ -30,6 +30,7 @@ import org.jetbrains.jet.codegen.context.CodegenContext;
 import org.jetbrains.jet.codegen.context.MethodContext;
 import org.jetbrains.jet.codegen.context.PackageContext;
 import org.jetbrains.jet.codegen.state.JetTypeMapper;
+import org.jetbrains.jet.config.IncrementalCompilation;
 import org.jetbrains.jet.lang.descriptors.*;
 import org.jetbrains.jet.lang.descriptors.annotations.Annotated;
 import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
@@ -168,6 +169,10 @@ public class CodegenUtil {
             PackageFragmentDescriptor fragment1 = (PackageFragmentDescriptor) owner1;
             PackageFragmentDescriptor fragment2 = (PackageFragmentDescriptor) owner2;
 
+            if (!IncrementalCompilation.ENABLED) {
+                return fragment1 == fragment2;
+            }
+
             // backing field should be used directly within same module of same package
             // TODO calls from other modules/libraries should use facade: KT-4590
             return fragment1.getFqName().equals(fragment2.getFqName()) && DescriptorUtils.areInSameModule(fragment1, fragment2);

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

@@ -37,6 +37,7 @@ import org.jetbrains.jet.codegen.context.MethodContext;
 import org.jetbrains.jet.codegen.signature.JvmMethodSignature;
 import org.jetbrains.jet.codegen.context.PackageContext;
 import org.jetbrains.jet.codegen.state.GenerationState;
+import org.jetbrains.jet.config.IncrementalCompilation;
 import org.jetbrains.jet.descriptors.serialization.*;
 import org.jetbrains.jet.descriptors.serialization.descriptors.DeserializedCallableMemberDescriptor;
 import org.jetbrains.jet.descriptors.serialization.descriptors.DeserializedPropertyDescriptor;
@@ -113,6 +114,10 @@ public class PackageCodegen extends GenerationStateAware {
 
     @Nullable
     private PackageFragmentDescriptor getCompiledPackageFragment() {
+        if (!IncrementalCompilation.ENABLED) {
+            return null;
+        }
+
         // TODO rewrite it to something more robust when module system is implemented
         for (PackageFragmentDescriptor anotherFragment : packageFragment.getContainingDeclaration().getPackageFragmentProvider()
                 .getPackageFragments(packageFragment.getFqName())) {

compiler/backend/src/org/jetbrains/jet/codegen/state/JetTypeMapper.java

@@ -29,6 +29,7 @@ import org.jetbrains.jet.codegen.signature.BothSignatureWriter;
 import org.jetbrains.jet.codegen.signature.JvmMethodParameterKind;
 import org.jetbrains.jet.codegen.signature.JvmMethodParameterSignature;
 import org.jetbrains.jet.codegen.signature.JvmMethodSignature;
+import org.jetbrains.jet.config.IncrementalCompilation;
 import org.jetbrains.jet.descriptors.serialization.descriptors.DeserializedCallableMemberDescriptor;
 import org.jetbrains.jet.lang.descriptors.*;
 import org.jetbrains.jet.lang.descriptors.impl.AnonymousFunctionDescriptor;
@@ -132,7 +133,7 @@ public class JetTypeMapper extends BindingTraceAware {
             if (file != null) {
                 return PackageCodegen.getPackagePartInternalName(file);
             }
-            if (descriptor instanceof DeserializedCallableMemberDescriptor) {
+            if (descriptor instanceof DeserializedCallableMemberDescriptor && IncrementalCompilation.ENABLED) {
                 //
                 // TODO calls from other modules/libraries should use facade: KT-4590
                 return PackageCodegen.getPackagePartInternalName((DeserializedCallableMemberDescriptor) descriptor);

compiler/util/src/org/jetbrains/jet/config/IncrementalCompilation.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2010-2014 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.config;
+
+public class IncrementalCompilation {
+    public static final boolean ENABLED = "true".equals(System.getProperty("kotlin.incremental.compilation"));
+}