@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);
}
public static void genNotNullAssertionForMethod(
@NotNull InstructionAdapter v,
@NotNull GenerationState state,
@NotNull ResolvedCall resolvedCall) {
CallableDescriptor descriptor = resolvedCall.getResultingDescriptor();
if (descriptor instanceof ConstructorDescriptor) return;
genNotNullAssertion(v, state, descriptor, "checkReturnedValueIsNotNull");
}
@NotNull
@Override
public String render(
@NotNull
Collection<? extends ResolvedCall<? extends CallableDescriptor>> argument) {
StringBuilder stringBuilder = new StringBuilder("\n");
for (ResolvedCall<? extends CallableDescriptor> call : argument) {
stringBuilder
.append(DescriptorRenderer.TEXT.render(call.getResultingDescriptor()))
.append("\n");
}
return stringBuilder.toString();
}
@Override
public void visitReferenceExpression(@NotNull JetReferenceExpression expression) {
super.visitReferenceExpression(expression);
ResolvedCall resolvedCall = CallUtilPackage.getResolvedCall(expression, bindingContext);
if (resolvedCall != null && resolvedCall instanceof VariableAsFunctionResolvedCall) {
// Deprecated for invoke()
JetCallExpression parent = PsiTreeUtil.getParentOfType(expression, JetCallExpression.class);
if (parent != null) {
reportAnnotationIfNeeded(parent, resolvedCall.getResultingDescriptor(), true);
}
}
if (expression.getNode().getElementType() == JetNodeTypes.OPERATION_REFERENCE) {
// Deprecated for operations (mark as warning)
checkDeprecatedForOperations(expression);
} else {
checkDeprecatedForReferenceExpression(expression);
}
}
@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);
}
@NotNull
protected JetTypeInfo visitAssignmentOperation(
JetBinaryExpression expression, ExpressionTypingContext contextWithExpectedType) {
// There is a temporary binding trace for an opportunity to resolve set method for array if
// needed (the initial trace should be used there)
TemporaryBindingTrace temporaryBindingTrace =
TemporaryBindingTrace.create(
contextWithExpectedType.trace,
"trace to resolve array set method for binary expression",
expression);
ExpressionTypingContext context =
contextWithExpectedType
.replaceExpectedType(TypeUtils.NO_EXPECTED_TYPE)
.replaceBindingTrace(temporaryBindingTrace);
JetSimpleNameExpression operationSign = expression.getOperationReference();
IElementType operationType = operationSign.getReferencedNameElementType();
JetTypeInfo leftInfo = facade.getTypeInfo(expression.getLeft(), context);
JetType leftType = leftInfo.getType();
DataFlowInfo dataFlowInfo = leftInfo.getDataFlowInfo();
JetExpression right = expression.getRight();
JetExpression left = JetPsiUtil.deparenthesizeWithNoTypeResolution(expression.getLeft());
if (right == null || left == null) {
temporaryBindingTrace.commit();
return JetTypeInfo.create(null, dataFlowInfo);
}
if (leftType == null) {
dataFlowInfo =
facade.getTypeInfo(right, context.replaceDataFlowInfo(dataFlowInfo)).getDataFlowInfo();
context.trace.report(UNRESOLVED_REFERENCE.on(operationSign));
temporaryBindingTrace.commit();
return JetTypeInfo.create(null, dataFlowInfo);
}
ExpressionReceiver receiver = new ExpressionReceiver(left, leftType);
// We check that defined only one of '+=' and '+' operations, and call it (in the case '+' we
// then also assign)
// Check for '+='
Name name = OperatorConventions.ASSIGNMENT_OPERATIONS.get(operationType);
TemporaryBindingTrace assignmentOperationTrace =
TemporaryBindingTrace.create(
context.trace, "trace to check assignment operation like '+=' for", expression);
OverloadResolutionResults<FunctionDescriptor> assignmentOperationDescriptors =
basic.getResolutionResultsForBinaryCall(
scope,
name,
context.replaceBindingTrace(assignmentOperationTrace),
expression,
receiver);
JetType assignmentOperationType =
OverloadResolutionResultsUtil.getResultType(assignmentOperationDescriptors);
// Check for '+'
Name counterpartName =
OperatorConventions.BINARY_OPERATION_NAMES.get(
OperatorConventions.ASSIGNMENT_OPERATION_COUNTERPARTS.get(operationType));
TemporaryBindingTrace binaryOperationTrace =
TemporaryBindingTrace.create(
context.trace, "trace to check binary operation like '+' for", expression);
OverloadResolutionResults<FunctionDescriptor> binaryOperationDescriptors =
basic.getResolutionResultsForBinaryCall(
scope,
counterpartName,
context.replaceBindingTrace(binaryOperationTrace),
expression,
receiver);
JetType binaryOperationType =
OverloadResolutionResultsUtil.getResultType(binaryOperationDescriptors);
JetType type = assignmentOperationType != null ? assignmentOperationType : binaryOperationType;
if (assignmentOperationType != null && binaryOperationType != null) {
OverloadResolutionResults<FunctionDescriptor> ambiguityResolutionResults =
OverloadResolutionResultsUtil.ambiguity(
assignmentOperationDescriptors, binaryOperationDescriptors);
context.trace.report(
ASSIGN_OPERATOR_AMBIGUITY.on(
operationSign, ambiguityResolutionResults.getResultingCalls()));
Collection<DeclarationDescriptor> descriptors = Sets.newHashSet();
for (ResolvedCall<? extends FunctionDescriptor> call :
ambiguityResolutionResults.getResultingCalls()) {
descriptors.add(call.getResultingDescriptor());
}
dataFlowInfo =
facade.getTypeInfo(right, context.replaceDataFlowInfo(dataFlowInfo)).getDataFlowInfo();
context.trace.record(AMBIGUOUS_REFERENCE_TARGET, operationSign, descriptors);
} else if (assignmentOperationType != null) {
assignmentOperationTrace.commit();
if (!KotlinBuiltIns.getInstance().isUnit(assignmentOperationType)) {
context.trace.report(
ASSIGNMENT_OPERATOR_SHOULD_RETURN_UNIT.on(
operationSign,
assignmentOperationDescriptors.getResultingDescriptor(),
operationSign));
}
} else {
binaryOperationTrace.commit();
context.trace.record(VARIABLE_REASSIGNMENT, expression);
if (left instanceof JetArrayAccessExpression) {
ExpressionTypingContext contextForResolve =
context
.replaceScope(scope)
.replaceBindingTrace(
TemporaryBindingTrace.create(
contextWithExpectedType.trace,
"trace to resolve array set method for assignment",
expression));
basic.resolveArrayAccessSetMethod(
(JetArrayAccessExpression) left, right, contextForResolve, context.trace);
}
dataFlowInfo =
facade.getTypeInfo(right, context.replaceDataFlowInfo(dataFlowInfo)).getDataFlowInfo();
}
basic.checkLValue(context.trace, expression.getLeft());
temporaryBindingTrace.commit();
return JetTypeInfo.create(
checkAssignmentType(type, expression, contextWithExpectedType), dataFlowInfo);
}