public static boolean isVariableIterable(
@NotNull ExpressionTypingServices expressionTypingServices,
@NotNull Project project,
@NotNull VariableDescriptor variableDescriptor,
@NotNull JetScope scope) {
JetExpression expression = JetPsiFactory.createExpression(project, "fake");
ExpressionReceiver expressionReceiver =
new ExpressionReceiver(expression, variableDescriptor.getType());
ExpressionTypingContext context =
ExpressionTypingContext.newContext(
expressionTypingServices,
new HashMap<JetPattern, DataFlowInfo>(),
new HashMap<JetPattern, List<VariableDescriptor>>(),
new LabelResolver(),
new BindingTraceContext(),
scope,
DataFlowInfo.EMPTY,
TypeUtils.NO_EXPECTED_TYPE,
TypeUtils.NO_EXPECTED_TYPE,
false);
return ControlStructureTypingVisitor.checkIterableConvention(expressionReceiver, context)
!= null;
}
@Override
public JetTypeInfo visitIfExpression(
JetIfExpression expression, ExpressionTypingContext context) {
return controlStructures.visitIfExpression(expression, context, true);
}