Anonymous object support

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ClassCodegen.kt

@@ -22,13 +22,16 @@ import org.jetbrains.kotlin.backend.jvm.descriptors.JvmSpecialDescriptor
 import org.jetbrains.kotlin.backend.jvm.lower.FileClassDescriptor
 import org.jetbrains.kotlin.codegen.*
 import org.jetbrains.kotlin.codegen.MemberCodegen.badDescriptor
+import org.jetbrains.kotlin.codegen.binding.CodegenBinding
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.name.SpecialNames
+import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.OtherOrigin
 import org.jetbrains.kotlin.resolve.source.PsiSourceElement
+import org.jetbrains.kotlin.resolve.source.getPsi
 import org.jetbrains.kotlin.types.ErrorUtils
 import org.jetbrains.org.objectweb.asm.Opcodes
 import org.jetbrains.org.objectweb.asm.Type
@@ -42,7 +45,9 @@ class ClassCodegen private constructor(val irClass: IrClass, val context: JvmBac
 
     val descriptor = irClass.descriptor
 
-    val type: Type = typeMapper.mapType(descriptor)
+    val isAnonymous = DescriptorUtils.isAnonymousObject(irClass.descriptor)
+
+    val type: Type = if (isAnonymous) CodegenBinding.asmTypeForAnonymousClass(state.bindingContext, descriptor.source.getPsi() as KtElement) else typeMapper.mapType(descriptor)
 
     val psiElement = irClass.descriptor.psiElement!!
 
@@ -85,6 +90,10 @@ class ClassCodegen private constructor(val irClass: IrClass, val context: JvmBac
 
             ClassCodegen(irClass, context).generate()
         }
+
+        fun generateAnonymous(irClass: IrClass, context: JvmBackendContext) {
+            ClassCodegen(irClass, context).generate()
+        }
     }
 
     fun generateDeclaration(declaration: IrDeclaration) {

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt

@@ -25,6 +25,7 @@ import org.jetbrains.kotlin.codegen.StackValue.*
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.impl.TypeAliasConstructorDescriptor
 import org.jetbrains.kotlin.ir.IrElement
+import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.declarations.IrVariable
 import org.jetbrains.kotlin.ir.expressions.*
@@ -300,6 +301,11 @@ class ExpressionCodegen(
         TODO("not implemented for $element") //To change body of created functions use File | Settings | File Templates.
     }
 
+    override fun visitClass(declaration: IrClass, data: BlockInfo): StackValue {
+        ClassCodegen.generateAnonymous(declaration, classCodegen.context)
+        return none()
+    }
+
     override fun visitVararg(expression: IrVararg, data: BlockInfo): StackValue {
         val size = expression.elements.size
         mv.iconst(size)