private void checkValueParameter(
@NotNull CallCheckerContext context,
@NotNull CallableDescriptor targetDescriptor,
@NotNull ValueArgument targetArgument,
@NotNull ValueParameterDescriptor targetParameterDescriptor) {
KtExpression argumentExpression = targetArgument.getArgumentExpression();
if (argumentExpression == null) {
return;
}
CallableDescriptor argumentCallee = getCalleeDescriptor(context, argumentExpression, false);
if (argumentCallee != null && inlinableParameters.contains(argumentCallee)) {
if (InlineUtil.isInline(targetDescriptor)
&& isInlinableParameter(targetParameterDescriptor)) {
if (allowsNonLocalReturns(argumentCallee)
&& !allowsNonLocalReturns(targetParameterDescriptor)) {
context
.getTrace()
.report(NON_LOCAL_RETURN_NOT_ALLOWED.on(argumentExpression, argumentExpression));
} else {
checkNonLocalReturn(context, argumentCallee, argumentExpression);
}
} else {
context
.getTrace()
.report(USAGE_IS_NOT_INLINABLE.on(argumentExpression, argumentExpression, descriptor));
}
}
}
private void checkNonLocalReturn(
@NotNull CallCheckerContext context,
@NotNull CallableDescriptor inlinableParameterDescriptor,
@NotNull KtExpression parameterUsage) {
if (!allowsNonLocalReturns(inlinableParameterDescriptor)) return;
if (!checkNonLocalReturnUsage(descriptor, parameterUsage, context.getResolutionContext())) {
context.getTrace().report(NON_LOCAL_RETURN_NOT_ALLOWED.on(parameterUsage, parameterUsage));
}
}
private void checkRecursion(
@NotNull CallCheckerContext context,
@NotNull CallableDescriptor targetDescriptor,
@NotNull KtElement expression) {
if (targetDescriptor.getOriginal() == descriptor) {
context.getTrace().report(Errors.RECURSION_IN_INLINE.on(expression, expression, descriptor));
}
}
private void checkPrivateClassMemberAccess(
@NotNull DeclarationDescriptor declarationDescriptor,
@NotNull KtElement expression,
@NotNull CallCheckerContext context) {
if (!isEffectivelyPrivateApiFunction) {
if (DescriptorUtilsKt.isInsidePrivateClass(declarationDescriptor)) {
context
.getTrace()
.report(
Errors.PRIVATE_CLASS_MEMBER_FROM_INLINE.on(
expression, declarationDescriptor, descriptor));
}
}
}
private void checkLambdaInvokeOrExtensionCall(
@NotNull CallCheckerContext context,
@NotNull CallableDescriptor lambdaDescriptor,
@NotNull CallableDescriptor callDescriptor,
@NotNull KtExpression receiverExpression) {
boolean inlinableCall = isInvokeOrInlineExtension(callDescriptor);
if (!inlinableCall) {
context
.getTrace()
.report(USAGE_IS_NOT_INLINABLE.on(receiverExpression, receiverExpression, descriptor));
} else {
checkNonLocalReturn(context, lambdaDescriptor, receiverExpression);
}
}
@Nullable
private static CallableDescriptor getCalleeDescriptor(
@NotNull CallCheckerContext context,
@NotNull KtExpression expression,
boolean unwrapVariableAsFunction) {
if (!(expression instanceof KtSimpleNameExpression || expression instanceof KtThisExpression))
return null;
ResolvedCall<?> thisCall =
CallUtilKt.getResolvedCall(expression, context.getTrace().getBindingContext());
if (unwrapVariableAsFunction && thisCall instanceof VariableAsFunctionResolvedCall) {
return ((VariableAsFunctionResolvedCall) thisCall).getVariableCall().getResultingDescriptor();
}
return thisCall != null ? thisCall.getResultingDescriptor() : null;
}
private void checkVisibilityAndAccess(
@NotNull CallableDescriptor declarationDescriptor,
@NotNull KtElement expression,
@NotNull CallCheckerContext context) {
boolean declarationDescriptorIsPublicApi =
DescriptorUtilsKt.isEffectivelyPublicApi(declarationDescriptor)
|| isDefinedInInlineFunction(declarationDescriptor);
if (isEffectivelyPublicApiFunction
&& !declarationDescriptorIsPublicApi
&& declarationDescriptor.getVisibility() != Visibilities.LOCAL) {
context
.getTrace()
.report(
Errors.NON_PUBLIC_CALL_FROM_PUBLIC_INLINE.on(
expression, declarationDescriptor, descriptor));
} else {
checkPrivateClassMemberAccess(declarationDescriptor, expression, context);
}
}
@Override
public void check(
@NotNull ResolvedCall<?> resolvedCall,
@NotNull PsiElement reportOn,
@NotNull CallCheckerContext context) {
KtExpression expression = resolvedCall.getCall().getCalleeExpression();
if (expression == null) {
return;
}
// checking that only invoke or inlinable extension called on function parameter
CallableDescriptor targetDescriptor = resolvedCall.getResultingDescriptor();
checkCallWithReceiver(
context, targetDescriptor, resolvedCall.getDispatchReceiver(), expression);
checkCallWithReceiver(
context, targetDescriptor, resolvedCall.getExtensionReceiver(), expression);
if (inlinableParameters.contains(targetDescriptor)) {
if (!isInsideCall(expression)) {
context.getTrace().report(USAGE_IS_NOT_INLINABLE.on(expression, expression, descriptor));
}
}
for (Map.Entry<ValueParameterDescriptor, ResolvedValueArgument> entry :
resolvedCall.getValueArguments().entrySet()) {
ResolvedValueArgument value = entry.getValue();
ValueParameterDescriptor valueDescriptor = entry.getKey();
if (!(value instanceof DefaultValueArgument)) {
for (ValueArgument argument : value.getArguments()) {
checkValueParameter(context, targetDescriptor, argument, valueDescriptor);
}
}
}
checkVisibilityAndAccess(targetDescriptor, expression, context);
checkRecursion(context, targetDescriptor, expression);
}