@NotNull
public TypeInfoForCall getQualifiedExpressionExtendedTypeInfo(
@NotNull JetQualifiedExpression expression,
@NotNull ResolutionContext context,
@NotNull ResolveMode resolveMode) {
// TODO : functions as values
JetExpression selectorExpression = expression.getSelectorExpression();
JetExpression receiverExpression = expression.getReceiverExpression();
JetTypeInfo receiverTypeInfo =
expressionTypingServices.getTypeInfoWithNamespaces(
receiverExpression,
context.scope,
NO_EXPECTED_TYPE,
context.dataFlowInfo,
context.trace);
JetType receiverType = receiverTypeInfo.getType();
if (selectorExpression == null) return TypeInfoForCall.create(null, context.dataFlowInfo);
if (receiverType == null)
receiverType = ErrorUtils.createErrorType("Type for " + expression.getText());
context = context.replaceDataFlowInfo(receiverTypeInfo.getDataFlowInfo());
if (selectorExpression instanceof JetSimpleNameExpression) {
ConstantUtils.propagateConstantValues(
expression, context.trace, (JetSimpleNameExpression) selectorExpression);
}
TypeInfoForCall selectorReturnTypeInfo =
getSelectorReturnTypeInfo(
new ExpressionReceiver(receiverExpression, receiverType),
expression.getOperationTokenNode(),
selectorExpression,
context,
resolveMode);
JetType selectorReturnType = selectorReturnTypeInfo.getType();
// TODO move further
if (!(receiverType instanceof NamespaceType)
&& expression.getOperationSign() == JetTokens.SAFE_ACCESS) {
if (selectorReturnType != null
&& !selectorReturnType.isNullable()
&& !KotlinBuiltIns.getInstance().isUnit(selectorReturnType)) {
if (receiverType.isNullable()) {
selectorReturnType = TypeUtils.makeNullable(selectorReturnType);
}
}
}
// TODO : this is suspicious: remove this code?
if (selectorReturnType != null) {
context.trace.record(BindingContext.EXPRESSION_TYPE, selectorExpression, selectorReturnType);
}
JetTypeInfo typeInfo =
JetTypeInfo.create(selectorReturnType, selectorReturnTypeInfo.getDataFlowInfo());
if (resolveMode == ResolveMode.TOP_LEVEL_CALL) {
DataFlowUtils.checkType(typeInfo.getType(), expression, context, typeInfo.getDataFlowInfo());
}
return TypeInfoForCall.create(typeInfo, selectorReturnTypeInfo);
}
@NotNull
private TypeInfoForCall getSelectorReturnTypeInfo(
@NotNull ReceiverValue receiver,
@Nullable ASTNode callOperationNode,
@NotNull JetExpression selectorExpression,
@NotNull ResolutionContext context,
@NotNull ResolveMode resolveMode) {
if (selectorExpression instanceof JetCallExpression) {
return getCallExpressionTypeInfoForCallWithoutFinalTypeCheck(
(JetCallExpression) selectorExpression,
receiver,
callOperationNode,
context,
resolveMode);
} else if (selectorExpression instanceof JetSimpleNameExpression) {
return TypeInfoForCall.create(
getSimpleNameExpressionTypeInfo(
(JetSimpleNameExpression) selectorExpression, receiver, callOperationNode, context));
} else if (selectorExpression instanceof JetQualifiedExpression) {
JetQualifiedExpression qualifiedExpression = (JetQualifiedExpression) selectorExpression;
JetExpression newReceiverExpression = qualifiedExpression.getReceiverExpression();
TypeInfoForCall newReceiverTypeInfo =
getSelectorReturnTypeInfo(
receiver,
callOperationNode,
newReceiverExpression,
context.replaceExpectedType(NO_EXPECTED_TYPE),
resolveMode);
JetType newReceiverType = newReceiverTypeInfo.getType();
DataFlowInfo newReceiverDataFlowInfo = newReceiverTypeInfo.getDataFlowInfo();
JetExpression newSelectorExpression = qualifiedExpression.getSelectorExpression();
if (newReceiverType != null && newSelectorExpression != null) {
ExpressionReceiver expressionReceiver =
new ExpressionReceiver(newReceiverExpression, newReceiverType);
return getSelectorReturnTypeInfo(
expressionReceiver,
qualifiedExpression.getOperationTokenNode(),
newSelectorExpression,
context.replaceDataFlowInfo(newReceiverDataFlowInfo),
resolveMode);
}
} else {
context.trace.report(ILLEGAL_SELECTOR.on(selectorExpression, selectorExpression.getText()));
}
return TypeInfoForCall.create(null, context.dataFlowInfo);
}
@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);
}