@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);
}
@Nullable
private JetType getVariableType(
@NotNull JetSimpleNameExpression nameExpression,
@NotNull ReceiverValue receiver,
@Nullable ASTNode callOperationNode,
@NotNull ResolutionContext context,
@NotNull boolean[] result) {
TemporaryBindingTrace traceForVariable =
TemporaryBindingTrace.create(
context.trace, "trace to resolve as local variable or property", nameExpression);
CallResolver callResolver = expressionTypingServices.getCallResolver();
Call call = CallMaker.makePropertyCall(receiver, callOperationNode, nameExpression);
OverloadResolutionResults<VariableDescriptor> resolutionResult =
callResolver.resolveSimpleProperty(
BasicCallResolutionContext.create(
context.replaceBindingTrace(traceForVariable),
call,
ResolveMode.TOP_LEVEL_CALL,
ResolutionResultsCache.create()));
if (!resolutionResult.isNothing()) {
traceForVariable.commit();
checkSuper(receiver, resolutionResult, context.trace, nameExpression);
result[0] = true;
return resolutionResult.isSingleResult()
? resolutionResult.getResultingDescriptor().getReturnType()
: null;
}
ResolutionContext newContext =
receiver.exists() ? context.replaceScope(receiver.getType().getMemberScope()) : context;
TemporaryBindingTrace traceForNamespaceOrClassObject =
TemporaryBindingTrace.create(
context.trace, "trace to resolve as namespace or class object", nameExpression);
JetType jetType =
lookupNamespaceOrClassObject(
nameExpression, newContext.replaceBindingTrace(traceForNamespaceOrClassObject));
if (jetType != null) {
traceForNamespaceOrClassObject.commit();
// Uncommitted changes in temp context
context.trace.record(RESOLUTION_SCOPE, nameExpression, context.scope);
if (context.dataFlowInfo.hasTypeInfoConstraints()) {
context.trace.record(
NON_DEFAULT_EXPRESSION_DATA_FLOW, nameExpression, context.dataFlowInfo);
}
result[0] = true;
return jetType;
}
result[0] = false;
return null;
}