private void generateBackingField(JetProperty p, PropertyDescriptor propertyDescriptor) {
if (state.getBindingContext().get(BindingContext.BACKING_FIELD_REQUIRED, propertyDescriptor)) {
DeclarationDescriptor containingDeclaration = propertyDescriptor.getContainingDeclaration();
if (CodegenUtil.isInterface(containingDeclaration)) return;
Object value = null;
final JetExpression initializer = p.getInitializer();
if (initializer != null) {
if (initializer instanceof JetConstantExpression) {
CompileTimeConstant<?> compileTimeValue =
state.getBindingContext().get(BindingContext.COMPILE_TIME_VALUE, initializer);
value = compileTimeValue != null ? compileTimeValue.getValue() : null;
}
}
int modifiers;
if (kind == OwnerKind.NAMESPACE) {
int access = JetTypeMapper.getAccessModifiers(propertyDescriptor, 0);
modifiers = access | Opcodes.ACC_STATIC;
} else {
modifiers = JetTypeMapper.getAccessModifiers(propertyDescriptor, 0);
}
if (!propertyDescriptor.isVar()) {
modifiers |= Opcodes.ACC_FINAL;
}
if (state.getInjector().getJetStandardLibrary().isVolatile(propertyDescriptor)) {
modifiers |= Opcodes.ACC_VOLATILE;
}
Type type =
state
.getInjector()
.getJetTypeMapper()
.mapType(propertyDescriptor.getType(), MapTypeMode.VALUE);
FieldVisitor fieldVisitor =
v.newField(p, modifiers, p.getName(), type.getDescriptor(), null, value);
AnnotationCodegen.forField(fieldVisitor, state.getInjector().getJetTypeMapper())
.genAnnotations(propertyDescriptor);
}
}
public void generateDefaultSetter(
PropertyDescriptor propertyDescriptor, int flags, PsiElement origin) {
if (propertyDescriptor.getKind() == CallableMemberDescriptor.Kind.FAKE_OVERRIDE) {
throw new IllegalStateException("must not generate code for fake overrides");
}
if (kind == OwnerKind.TRAIT_IMPL) {
return;
}
if (kind == OwnerKind.NAMESPACE) {
flags |= Opcodes.ACC_STATIC;
}
PsiElement psiElement =
state
.getBindingContext()
.get(
BindingContext.DESCRIPTOR_TO_DECLARATION,
propertyDescriptor.getContainingDeclaration());
boolean isTrait = psiElement instanceof JetClass && ((JetClass) psiElement).isTrait();
if (isTrait && !(kind instanceof OwnerKind.DelegateKind)) flags |= Opcodes.ACC_ABSTRACT;
if (propertyDescriptor.getModality() == Modality.FINAL) {
flags |= Opcodes.ACC_FINAL;
}
JvmPropertyAccessorSignature signature =
state.getInjector().getJetTypeMapper().mapSetterSignature(propertyDescriptor, kind);
final String descriptor = signature.getJvmMethodSignature().getAsmMethod().getDescriptor();
MethodVisitor mv =
v.newMethod(
origin, flags, setterName(propertyDescriptor.getName()), descriptor, null, null);
generateJetPropertyAnnotation(
mv,
signature.getPropertyTypeKotlinSignature(),
signature.getJvmMethodSignature().getKotlinTypeParameter());
if (propertyDescriptor.getSetter() != null) {
assert !propertyDescriptor.getSetter().hasBody();
AnnotationCodegen.forMethod(mv, state.getInjector().getJetTypeMapper())
.genAnnotations(propertyDescriptor.getSetter());
}
if (v.generateCode() != ClassBuilder.Mode.SIGNATURES
&& (!isTrait || kind instanceof OwnerKind.DelegateKind)) {
if (propertyDescriptor.getModality() != Modality.ABSTRACT) {
mv.visitCode();
if (v.generateCode() == ClassBuilder.Mode.STUBS) {
StubCodegen.generateStubThrow(mv);
} else {
InstructionAdapter iv = new InstructionAdapter(mv);
final Type type =
state
.getInjector()
.getJetTypeMapper()
.mapType(propertyDescriptor.getType(), MapTypeMode.VALUE);
int paramCode = 0;
if (kind != OwnerKind.NAMESPACE) {
iv.load(0, JetTypeMapper.TYPE_OBJECT);
paramCode = 1;
}
if ((kind instanceof OwnerKind.DelegateKind)
!= (propertyDescriptor.getKind() == FunctionDescriptor.Kind.DELEGATION)) {
throw new IllegalStateException("mismatching kind in " + propertyDescriptor);
}
if (kind instanceof OwnerKind.DelegateKind) {
OwnerKind.DelegateKind dk = (OwnerKind.DelegateKind) kind;
iv.load(0, JetTypeMapper.TYPE_OBJECT);
dk.getDelegate().put(JetTypeMapper.TYPE_OBJECT, iv);
iv.load(paramCode, type);
iv.invokeinterface(
dk.getOwnerClass(), setterName(propertyDescriptor.getName()), descriptor);
} else {
iv.load(paramCode, type);
iv.visitFieldInsn(
kind == OwnerKind.NAMESPACE ? Opcodes.PUTSTATIC : Opcodes.PUTFIELD,
state.getInjector().getJetTypeMapper().getOwner(propertyDescriptor, kind),
propertyDescriptor.getName(),
type.getDescriptor());
}
iv.visitInsn(Opcodes.RETURN);
}
}
FunctionCodegen.endVisit(mv, "setter", origin);
}
}
private static boolean isExternallyAccessible(PropertyDescriptor p) {
return p.getVisibility() != Visibilities.PRIVATE
|| CodegenUtil.isClassObject(p.getContainingDeclaration());
}