public void Visit(StatementUnit node)
{
node.Expression.Accept(this);
DeclareNewVariable(node.Identifier, node.DataType);
if (node.DataType.GetReturnType() != DetermineType(node.Expression))
{
Exceptions.Add(new TypeCheckerError(String.Format(
"Expression inside the statement declared as {0}, but resolves into type {1} instead",
node.DataType.GetReturnType(),
DetermineType(node.Expression))));
}
}
public void Visit(StatementUnit node)
{
ITerminalWrapper evaluatedResult = ReferenceTables.GetValueOrNull(node.Expression);
node.Value = evaluatedResult;
WidgetBase unitWrapper = _widgetFactory.GetWidget(node);
unitWrapper.Visibility = _parentExpressionDidNotEvaluate ? Visibility.Collapsed : Visibility.Visible;
int index = _elementsToDisplay.ToList().FindIndex(elem => elem.Unit.Identifier == unitWrapper.Unit.Identifier);
if (index < 0)
{
_elementsToDisplay.Add(unitWrapper);
}
else
{
_elementsToDisplay[index].Visibility = unitWrapper.Visibility;
}
}
public WidgetBase GetWidget(StatementUnit unit)
{
return new StatementWidget(unit);
}
public void Visit(StatementUnit node)
{
node.Expression.Accept(this);
ReferenceTables.SetReference(node.Identifier, node.Expression);
}
public void Visit(StatementUnit node)
{
_unitsToAnswers.Add(node.Text, node.Value);
}
public override void ExitStatementUnit(QLParser.StatementUnitContext context)
{
IList<ElementBase> children = GetChildren();
ThrowExceptionIfAny();
if (children.Count() != 2)
{
_astBuilderExceptions.Add(new ParserError("A statement should have only expression and an identifier as children."));
}
StatementUnit statement = new StatementUnit(
(Identifier)children[0],
(Expression)children[1],
context.TEXT().GetText(),
_terminalTypeFactory.GetTypeInstance(context.type()),
SourceLocation.CreateFor(context)
);
AppendToAST(statement);
}
