private void generateBridge(
@Nullable PsiElement origin,
@NotNull FunctionDescriptor descriptor,
@NotNull Method bridge,
@NotNull Method delegateTo,
boolean isSpecialBridge,
boolean isStubDeclarationWithDelegationToSuper) {
boolean isSpecialOrDelegationToSuper =
isSpecialBridge || isStubDeclarationWithDelegationToSuper;
int flags =
ACC_PUBLIC
| ACC_BRIDGE
| (!isSpecialOrDelegationToSuper ? ACC_SYNTHETIC : 0)
| (isSpecialBridge ? ACC_FINAL : 0); // TODO.
MethodVisitor mv =
v.newMethod(
JvmDeclarationOriginKt.Bridge(descriptor, origin),
flags,
bridge.getName(),
bridge.getDescriptor(),
null,
null);
if (state.getClassBuilderMode() != ClassBuilderMode.FULL) return;
mv.visitCode();
Type[] argTypes = bridge.getArgumentTypes();
Type[] originalArgTypes = delegateTo.getArgumentTypes();
InstructionAdapter iv = new InstructionAdapter(mv);
MemberCodegen.markLineNumberForDescriptor(owner.getThisDescriptor(), iv);
if (delegateTo.getArgumentTypes().length == 1 && isSpecialBridge) {
generateTypeCheckBarrierIfNeeded(
iv, descriptor, bridge.getReturnType(), delegateTo.getArgumentTypes()[0]);
}
iv.load(0, OBJECT_TYPE);
for (int i = 0, reg = 1; i < argTypes.length; i++) {
StackValue.local(reg, argTypes[i]).put(originalArgTypes[i], iv);
//noinspection AssignmentToForLoopParameter
reg += argTypes[i].getSize();
}
if (isStubDeclarationWithDelegationToSuper) {
ClassDescriptor parentClass =
getSuperClassDescriptor((ClassDescriptor) descriptor.getContainingDeclaration());
assert parentClass != null;
String parentInternalName = typeMapper.mapClass(parentClass).getInternalName();
iv.invokespecial(parentInternalName, delegateTo.getName(), delegateTo.getDescriptor());
} else {
iv.invokevirtual(v.getThisName(), delegateTo.getName(), delegateTo.getDescriptor());
}
StackValue.coerce(delegateTo.getReturnType(), bridge.getReturnType(), iv);
iv.areturn(bridge.getReturnType());
endVisit(mv, "bridge method", origin);
}
public void generateMethod(
@NotNull JvmDeclarationOrigin origin,
@NotNull FunctionDescriptor functionDescriptor,
@NotNull MethodContext methodContext,
@NotNull FunctionGenerationStrategy strategy) {
OwnerKind contextKind = methodContext.getContextKind();
if (isInterface(functionDescriptor.getContainingDeclaration())
&& functionDescriptor.getVisibility() == Visibilities.PRIVATE
&& contextKind != OwnerKind.DEFAULT_IMPLS) {
return;
}
JvmMethodSignature jvmSignature = typeMapper.mapSignature(functionDescriptor, contextKind);
Method asmMethod = jvmSignature.getAsmMethod();
int flags = getMethodAsmFlags(functionDescriptor, contextKind);
boolean isNative = NativeKt.hasNativeAnnotation(functionDescriptor);
if (isNative && owner instanceof MultifileClassFacadeContext) {
// Native methods are only defined in facades and do not need package part implementations
return;
}
MethodVisitor mv =
v.newMethod(
origin,
flags,
asmMethod.getName(),
asmMethod.getDescriptor(),
jvmSignature.getGenericsSignature(),
getThrownExceptions(functionDescriptor, typeMapper));
if (CodegenContextUtil.isImplClassOwner(owner)) {
v.getSerializationBindings().put(METHOD_FOR_FUNCTION, functionDescriptor, asmMethod);
}
generateMethodAnnotations(functionDescriptor, asmMethod, mv);
generateParameterAnnotations(
functionDescriptor, mv, typeMapper.mapSignature(functionDescriptor));
generateBridges(functionDescriptor);
boolean staticInCompanionObject =
AnnotationUtilKt.isPlatformStaticInCompanionObject(functionDescriptor);
if (staticInCompanionObject) {
ImplementationBodyCodegen parentBodyCodegen =
(ImplementationBodyCodegen) memberCodegen.getParentCodegen();
parentBodyCodegen.addAdditionalTask(
new JvmStaticGenerator(functionDescriptor, origin, state));
}
if (state.getClassBuilderMode() == ClassBuilderMode.LIGHT_CLASSES
|| isAbstractMethod(functionDescriptor, contextKind)) {
generateLocalVariableTable(
mv,
jvmSignature,
functionDescriptor,
getThisTypeForFunction(functionDescriptor, methodContext, typeMapper),
new Label(),
new Label(),
contextKind);
mv.visitEnd();
return;
}
if (!isNative) {
generateMethodBody(
mv, functionDescriptor, methodContext, jvmSignature, strategy, memberCodegen);
} else if (staticInCompanionObject) {
// native @JvmStatic foo() in companion object should delegate to the static native function
// moved to the outer class
mv.visitCode();
FunctionDescriptor staticFunctionDescriptor =
JvmStaticGenerator.createStaticFunctionDescriptor(functionDescriptor);
JvmMethodSignature jvmMethodSignature =
typeMapper.mapSignature(
memberCodegen.getContext().accessibleDescriptor(staticFunctionDescriptor, null));
Type owningType =
typeMapper.mapClass(
(ClassifierDescriptor) staticFunctionDescriptor.getContainingDeclaration());
generateDelegateToMethodBody(
false, mv, jvmMethodSignature.getAsmMethod(), owningType.getInternalName());
}
endVisit(mv, null, origin.getElement());
}