@NotNull
private static FrameMap createFrameMap(
@NotNull GenerationState state,
@NotNull FunctionDescriptor function,
@NotNull JvmMethodSignature signature,
boolean isStatic) {
FrameMap frameMap = new FrameMap();
if (!isStatic) {
frameMap.enterTemp(OBJECT_TYPE);
}
for (JvmMethodParameterSignature parameter : signature.getValueParameters()) {
if (parameter.getKind() == JvmMethodParameterKind.RECEIVER) {
ReceiverParameterDescriptor receiverParameter = function.getExtensionReceiverParameter();
if (receiverParameter != null) {
frameMap.enter(receiverParameter, state.getTypeMapper().mapType(receiverParameter));
}
} else if (parameter.getKind() != JvmMethodParameterKind.VALUE) {
frameMap.enterTemp(parameter.getAsmType());
}
}
for (ValueParameterDescriptor parameter : function.getValueParameters()) {
frameMap.enter(parameter, state.getTypeMapper().mapType(parameter));
}
return frameMap;
}
private static boolean isMethodOfAny(@NotNull FunctionDescriptor descriptor) {
String name = descriptor.getName().asString();
List<ValueParameterDescriptor> parameters = descriptor.getValueParameters();
if (parameters.isEmpty()) {
return name.equals("hashCode") || name.equals("toString");
} else if (parameters.size() == 1 && name.equals("equals")) {
return isNullableAny(parameters.get(0).getType());
}
return false;
}
private void generateParameterAnnotations(
@NotNull FunctionDescriptor functionDescriptor,
@NotNull MethodVisitor mv,
@NotNull JvmMethodSignature jvmSignature) {
Iterator<ValueParameterDescriptor> iterator =
functionDescriptor.getValueParameters().iterator();
List<JvmMethodParameterSignature> kotlinParameterTypes = jvmSignature.getValueParameters();
for (int i = 0; i < kotlinParameterTypes.size(); i++) {
JvmMethodParameterSignature parameterSignature = kotlinParameterTypes.get(i);
JvmMethodParameterKind kind = parameterSignature.getKind();
if (kind.isSkippedInGenericSignature()) {
markEnumOrInnerConstructorParameterAsSynthetic(mv, i);
continue;
}
if (kind == JvmMethodParameterKind.VALUE) {
ValueParameterDescriptor parameter = iterator.next();
if (parameter.getIndex() != i) {
v.getSerializationBindings().put(INDEX_FOR_VALUE_PARAMETER, parameter, i);
}
AnnotationCodegen annotationCodegen = AnnotationCodegen.forParameter(i, mv, typeMapper);
if (functionDescriptor instanceof PropertySetterDescriptor) {
PropertyDescriptor propertyDescriptor =
((PropertySetterDescriptor) functionDescriptor).getCorrespondingProperty();
Annotated targetedAnnotations =
new AnnotatedWithOnlyTargetedAnnotations(propertyDescriptor);
annotationCodegen.genAnnotations(
targetedAnnotations, parameterSignature.getAsmType(), SETTER_PARAMETER);
}
if (functionDescriptor instanceof ConstructorDescriptor) {
annotationCodegen.genAnnotations(
parameter, parameterSignature.getAsmType(), CONSTRUCTOR_PARAMETER);
} else {
annotationCodegen.genAnnotations(parameter, parameterSignature.getAsmType());
}
} else if (kind == JvmMethodParameterKind.RECEIVER) {
ReceiverParameterDescriptor receiver =
((functionDescriptor instanceof PropertyAccessorDescriptor)
? ((PropertyAccessorDescriptor) functionDescriptor).getCorrespondingProperty()
: functionDescriptor)
.getExtensionReceiverParameter();
if (receiver != null) {
AnnotationCodegen annotationCodegen = AnnotationCodegen.forParameter(i, mv, typeMapper);
Annotated targetedAnnotations =
new AnnotatedWithOnlyTargetedAnnotations(receiver.getType());
annotationCodegen.genAnnotations(
targetedAnnotations, parameterSignature.getAsmType(), RECEIVER);
}
}
}
}
private static boolean isDefaultNeeded(FunctionDescriptor functionDescriptor) {
boolean needed = false;
if (functionDescriptor != null) {
for (ValueParameterDescriptor parameterDescriptor : functionDescriptor.getValueParameters()) {
if (parameterDescriptor.declaresDefaultValue()) {
needed = true;
break;
}
}
}
return needed;
}
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();
}
}
public static void generateDefaultImplBody(
@NotNull MethodContext methodContext,
@NotNull FunctionDescriptor functionDescriptor,
@NotNull MethodVisitor mv,
@NotNull DefaultParameterValueLoader loadStrategy,
@Nullable JetNamedFunction function,
@NotNull MemberCodegen<?> parentCodegen) {
GenerationState state = parentCodegen.state;
JvmMethodSignature signature =
state.getTypeMapper().mapSignature(functionDescriptor, methodContext.getContextKind());
boolean isStatic = isStaticMethod(methodContext.getContextKind(), functionDescriptor);
FrameMap frameMap = createFrameMap(state, functionDescriptor, signature, isStatic);
ExpressionCodegen codegen =
new ExpressionCodegen(
mv, frameMap, signature.getReturnType(), methodContext, state, parentCodegen);
CallGenerator generator = codegen.getOrCreateCallGenerator(functionDescriptor, function);
loadExplicitArgumentsOnStack(OBJECT_TYPE, isStatic, signature, generator);
List<JvmMethodParameterSignature> mappedParameters = signature.getValueParameters();
int capturedArgumentsCount = 0;
while (capturedArgumentsCount < mappedParameters.size()
&& mappedParameters.get(capturedArgumentsCount).getKind() != JvmMethodParameterKind.VALUE) {
capturedArgumentsCount++;
}
InstructionAdapter iv = new InstructionAdapter(mv);
int maskIndex = 0;
List<ValueParameterDescriptor> valueParameters = functionDescriptor.getValueParameters();
for (int index = 0; index < valueParameters.size(); index++) {
if (index % Integer.SIZE == 0) {
maskIndex = frameMap.enterTemp(Type.INT_TYPE);
}
ValueParameterDescriptor parameterDescriptor = valueParameters.get(index);
Type type = mappedParameters.get(capturedArgumentsCount + index).getAsmType();
int parameterIndex = frameMap.getIndex(parameterDescriptor);
if (parameterDescriptor.declaresDefaultValue()) {
iv.load(maskIndex, Type.INT_TYPE);
iv.iconst(1 << (index % Integer.SIZE));
iv.and(Type.INT_TYPE);
Label loadArg = new Label();
iv.ifeq(loadArg);
StackValue.local(parameterIndex, type)
.store(loadStrategy.genValue(parameterDescriptor, codegen), iv);
iv.mark(loadArg);
}
generator.putValueIfNeeded(parameterDescriptor, type, StackValue.local(parameterIndex, type));
}
CallableMethod method = state.getTypeMapper().mapToCallableMethod(functionDescriptor, false);
generator.genCallWithoutAssertions(method, codegen);
iv.areturn(signature.getReturnType());
}