private void writePackageFacadeMethodAnnotationsIfNeeded(MethodVisitor mv) {
if (owner instanceof PackageFacadeContext) {
PackageFacadeContext packageFacadeContext = (PackageFacadeContext) owner;
Type delegateToClassType = packageFacadeContext.getPublicFacadeType();
if (delegateToClassType != null) {
String className = delegateToClassType.getClassName();
AnnotationVisitor av =
mv.visitAnnotation(
AsmUtil.asmDescByFqNameWithoutInnerClasses(
JvmAnnotationNames.KOTLIN_DELEGATED_METHOD),
true);
av.visit(JvmAnnotationNames.IMPLEMENTATION_CLASS_NAME_FIELD_NAME, className);
av.visitEnd();
}
}
}
public ClosureCodegen(
@NotNull GenerationState state,
@NotNull JetElement element,
@Nullable SamType samType,
@NotNull ClosureContext context,
@NotNull KotlinSyntheticClass.Kind syntheticClassKind,
@NotNull FunctionGenerationStrategy strategy,
@NotNull MemberCodegen<?> parentCodegen,
@NotNull ClassBuilder classBuilder) {
super(state, parentCodegen, context, element, classBuilder);
this.funDescriptor = context.getFunctionDescriptor();
this.classDescriptor = context.getContextDescriptor();
this.samType = samType;
this.syntheticClassKind = syntheticClassKind;
this.strategy = strategy;
if (samType == null) {
this.superInterfaceTypes = new ArrayList<JetType>();
JetType superClassType = null;
for (JetType supertype : classDescriptor.getTypeConstructor().getSupertypes()) {
ClassifierDescriptor classifier = supertype.getConstructor().getDeclarationDescriptor();
if (DescriptorUtils.isTrait(classifier)) {
superInterfaceTypes.add(supertype);
} else {
assert superClassType == null
: "Closure class can't have more than one superclass: " + funDescriptor;
superClassType = supertype;
}
}
assert superClassType != null : "Closure class should have a superclass: " + funDescriptor;
this.superClassType = superClassType;
} else {
this.superInterfaceTypes = Collections.singletonList(samType.getType());
this.superClassType = getBuiltIns(funDescriptor).getAnyType();
}
this.closure = bindingContext.get(CLOSURE, classDescriptor);
assert closure != null : "Closure must be calculated for class: " + classDescriptor;
this.asmType = typeMapper.mapClass(classDescriptor);
visibilityFlag = AsmUtil.getVisibilityAccessFlagForAnonymous(classDescriptor);
}
private static void generateLocalVariableTable(
@NotNull MethodVisitor mv,
@NotNull JvmMethodSignature jvmMethodSignature,
@NotNull FunctionDescriptor functionDescriptor,
@Nullable Type thisType,
@NotNull Label methodBegin,
@NotNull Label methodEnd,
@NotNull OwnerKind ownerKind) {
Iterator<ValueParameterDescriptor> valueParameters =
functionDescriptor.getValueParameters().iterator();
List<JvmMethodParameterSignature> params = jvmMethodSignature.getValueParameters();
int shift = 0;
boolean isStatic = AsmUtil.isStaticMethod(ownerKind, functionDescriptor);
if (!isStatic) {
// add this
if (thisType != null) {
mv.visitLocalVariable(
"this", thisType.getDescriptor(), null, methodBegin, methodEnd, shift);
} else {
// TODO: provide thisType for callable reference
}
shift++;
}
for (int i = 0; i < params.size(); i++) {
JvmMethodParameterSignature param = params.get(i);
JvmMethodParameterKind kind = param.getKind();
String parameterName;
if (kind == JvmMethodParameterKind.VALUE) {
ValueParameterDescriptor parameter = valueParameters.next();
parameterName = parameter.getName().asString();
} else {
String lowercaseKind = kind.name().toLowerCase();
parameterName = needIndexForVar(kind) ? "$" + lowercaseKind + "$" + i : "$" + lowercaseKind;
}
Type type = param.getAsmType();
mv.visitLocalVariable(
parameterName, type.getDescriptor(), null, methodBegin, methodEnd, shift);
shift += type.getSize();
}
}
private static void genDefaultSuperCallCheckIfNeeded(
@NotNull InstructionAdapter iv, @NotNull Method defaultMethod) {
String defaultMethodName = defaultMethod.getName();
if ("<init>".equals(defaultMethodName)) {
return;
}
Label end = new Label();
int handleIndex =
(Type.getArgumentsAndReturnSizes(defaultMethod.getDescriptor()) >> 2)
- 2; /*-1 for this, and -1 for handle*/
iv.load(handleIndex, OBJECT_TYPE);
iv.ifnull(end);
AsmUtil.genThrow(
iv,
"java/lang/UnsupportedOperationException",
"Super calls with default arguments not supported in this target, function: "
+ StringsKt.substringBeforeLast(
defaultMethodName, JvmAbi.DEFAULT_PARAMS_IMPL_SUFFIX, defaultMethodName));
iv.visitLabel(end);
}