public static boolean isLocalNamedFun(DeclarationDescriptor fd) {
if (fd instanceof FunctionDescriptor) {
FunctionDescriptor descriptor = (FunctionDescriptor) fd;
return descriptor.getVisibility() == Visibilities.LOCAL && !descriptor.getName().isSpecial();
}
return false;
}
private ClassDescriptor recordClassForFunction(FunctionDescriptor funDescriptor) {
ClassDescriptor classDescriptor;
int arity = funDescriptor.getValueParameters().size();
classDescriptor =
new ClassDescriptorImpl(
funDescriptor.getContainingDeclaration(),
Collections.<AnnotationDescriptor>emptyList(),
Modality.FINAL,
Name.special("<closure>"));
((ClassDescriptorImpl) classDescriptor)
.initialize(
false,
Collections.<TypeParameterDescriptor>emptyList(),
Collections.singleton(
(funDescriptor.getReceiverParameter().exists()
? JetStandardClasses.getReceiverFunction(arity)
: JetStandardClasses.getFunction(arity))
.getDefaultType()),
JetScope.EMPTY,
Collections.<ConstructorDescriptor>emptySet(),
null);
assert PsiCodegenPredictor.checkPredictedClassNameForFun(
bindingContext, funDescriptor, classDescriptor);
bindingTrace.record(CLASS_FOR_FUNCTION, funDescriptor, classDescriptor);
return classDescriptor;
}
@NotNull
public JetTypeInfo getSimpleNameExpressionTypeInfo(
@NotNull JetSimpleNameExpression nameExpression,
@NotNull ReceiverValue receiver,
@Nullable ASTNode callOperationNode,
@NotNull ResolutionContext context) {
boolean[] result = new boolean[1];
TemporaryBindingTrace traceForVariable =
TemporaryBindingTrace.create(context.trace, "trace to resolve as variable", nameExpression);
JetType type =
getVariableType(
nameExpression,
receiver,
callOperationNode,
context.replaceBindingTrace(traceForVariable),
result);
if (result[0]) {
traceForVariable.commit();
if (type instanceof NamespaceType && context.expressionPosition == ExpressionPosition.FREE) {
type = null;
}
return JetTypeInfo.create(type, context.dataFlowInfo);
}
Call call =
CallMaker.makeCall(
nameExpression,
receiver,
callOperationNode,
nameExpression,
Collections.<ValueArgument>emptyList());
TemporaryBindingTrace traceForFunction =
TemporaryBindingTrace.create(context.trace, "trace to resolve as function", nameExpression);
ResolvedCall<FunctionDescriptor> resolvedCall =
getResolvedCallForFunction(
call,
nameExpression,
receiver,
context,
ResolveMode.TOP_LEVEL_CALL,
ResolutionResultsCache.create(),
result);
if (result[0]) {
FunctionDescriptor functionDescriptor =
resolvedCall != null ? resolvedCall.getResultingDescriptor() : null;
traceForFunction.commit();
boolean hasValueParameters =
functionDescriptor == null || functionDescriptor.getValueParameters().size() > 0;
context.trace.report(
FUNCTION_CALL_EXPECTED.on(nameExpression, nameExpression, hasValueParameters));
type = functionDescriptor != null ? functionDescriptor.getReturnType() : null;
return JetTypeInfo.create(type, context.dataFlowInfo);
}
traceForVariable.commit();
return JetTypeInfo.create(null, context.dataFlowInfo);
}
@Override
public void visitNamedFunction(JetNamedFunction function) {
FunctionDescriptor functionDescriptor =
(FunctionDescriptor) bindingContext.get(DECLARATION_TO_DESCRIPTOR, function);
// working around a problem with shallow analysis
if (functionDescriptor == null) return;
DeclarationDescriptor containingDeclaration = functionDescriptor.getContainingDeclaration();
if (containingDeclaration instanceof ClassDescriptor) {
nameStack.push(peekFromStack(nameStack) + '$' + function.getName());
super.visitNamedFunction(function);
nameStack.pop();
} else if (containingDeclaration instanceof NamespaceDescriptor) {
String peek = peekFromStack(nameStack);
if (peek.isEmpty()) {
peek = JvmAbi.PACKAGE_CLASS;
} else {
peek += "/" + JvmAbi.PACKAGE_CLASS;
}
nameStack.push(peek + '$' + function.getName());
super.visitNamedFunction(function);
nameStack.pop();
} else {
String name = inventAnonymousClassName(function);
ClassDescriptor classDescriptor = recordClassForFunction(functionDescriptor);
recordClosure(
bindingTrace,
function,
classDescriptor,
peekFromStack(classStack),
JvmClassName.byInternalName(name),
true);
classStack.push(classDescriptor);
nameStack.push(name);
super.visitNamedFunction(function);
nameStack.pop();
classStack.pop();
}
}
@NotNull
public TypeInfoForCall getCallExpressionTypeInfoForCallWithoutFinalTypeCheck(
@NotNull JetCallExpression callExpression,
@NotNull ReceiverValue receiver,
@Nullable ASTNode callOperationNode,
@NotNull ResolutionContext context,
@NotNull ResolveMode resolveMode) {
boolean[] result = new boolean[1];
Call call = CallMaker.makeCall(receiver, callOperationNode, callExpression);
TemporaryBindingTrace traceForFunction =
TemporaryBindingTrace.create(
context.trace, "trace to resolve as function call", callExpression);
ResolvedCall<FunctionDescriptor> resolvedCall =
getResolvedCallForFunction(
call,
callExpression,
receiver,
context.replaceBindingTrace(traceForFunction),
resolveMode,
result);
if (result[0]) {
FunctionDescriptor functionDescriptor =
resolvedCall != null ? resolvedCall.getResultingDescriptor() : null;
traceForFunction.commit();
if (callExpression.getValueArgumentList() == null
&& callExpression.getFunctionLiteralArguments().isEmpty()) {
// there are only type arguments
boolean hasValueParameters =
functionDescriptor == null || functionDescriptor.getValueParameters().size() > 0;
context.trace.report(
FUNCTION_CALL_EXPECTED.on(callExpression, callExpression, hasValueParameters));
}
if (functionDescriptor == null) {
return TypeInfoForCall.create(null, context.dataFlowInfo);
}
JetType type = functionDescriptor.getReturnType();
return TypeInfoForCall.create(
type, resolvedCall.getDataFlowInfo(), resolvedCall, call, context, resolveMode);
}
JetExpression calleeExpression = callExpression.getCalleeExpression();
if (calleeExpression instanceof JetSimpleNameExpression
&& callExpression.getTypeArgumentList() == null) {
TemporaryBindingTrace traceForVariable =
TemporaryBindingTrace.create(
context.trace, "trace to resolve as variable with 'invoke' call", callExpression);
JetType type =
getVariableType(
(JetSimpleNameExpression) calleeExpression,
receiver,
callOperationNode,
context.replaceBindingTrace(traceForVariable),
result);
if (result[0]) {
traceForVariable.commit();
context.trace.report(
FUNCTION_EXPECTED.on(
(JetReferenceExpression) calleeExpression,
calleeExpression,
type != null ? type : ErrorUtils.createErrorType("")));
return TypeInfoForCall.create(null, context.dataFlowInfo);
}
}
traceForFunction.commit();
return TypeInfoForCall.create(null, context.dataFlowInfo);
}