public virtual void Visit(IfStatement ifStatement)
{
WriteLinkLine(ifStatement);
Visit((Statement)ifStatement);
Write("if").WriteSpace().Write("(");
VisitDynamic(ifStatement.Condition);
Write(")");
WriteStatementContent(ifStatement.Then);
if (ifStatement.Else != null)
{
WriteLinkLine(ifStatement.Else);
Write("else");
var nestedIfStatement = ifStatement.Else as IfStatement;
if (nestedIfStatement != null && nestedIfStatement.Attributes.Count == 0)
{
Write(" ");
Visit(nestedIfStatement);
}
else WriteStatementContent(ifStatement.Else);
}
}
public override Node Visit(IfStatement ifStatement)
{
// First, dispatch to resolve type of node at deeper level
base.Visit(ifStatement);
var conditionType = ifStatement.Condition.TypeInference.TargetType;
if (!(ifStatement.Condition is BinaryExpression || ifStatement.Condition is UnaryExpression))
{
ifStatement.Condition = ConvertExpressionToBool(ifStatement.Condition, conditionType);
}
return ifStatement;
}
protected virtual void Visit(IfStatement ifStatement)
{
// First, dispatch to resolve type of node at deeper level
Visit((Node)ifStatement);
var conditionType = ifStatement.Condition.TypeInference.TargetType;
if (!(ifStatement.Condition is BinaryExpression || ifStatement.Condition is UnaryExpression))
{
ifStatement.Condition = ConvertExpressionToBool(ifStatement.Condition, conditionType);
}
}
protected virtual void Visit(IfStatement ifStatement)
{
// First, dispatch to resolve type of node at deeper level
Visit((Node)ifStatement);
ifStatement.Condition.TypeInference.ExpectedType = ScalarType.Bool;
}
protected void Visit(IfStatement ifStatement)
{
containerStack.Push(ifStatement);
Visit((Node)ifStatement);
containerStack.Pop();
}
/// <summary>
/// Inserts the break variable in the flow of the loop
/// </summary>
/// <param name="breakFlag">the break variable</param>
protected void TransformBreaks(Variable breakFlag)
{
var breakTest = new UnaryExpression(UnaryOperator.LogicalNot, new VariableReferenceExpression(breakFlag));
scopeList.Reverse();
foreach (var breakScope in scopeList)
{
for (int i = 0; i < breakScope.Count - 1; ++i)
{
var currentScope = breakScope[i];
var nextScope = breakScope[i+1];
if (currentScope is StatementList)
{
var typedScope = currentScope as StatementList;
var index = typedScope.Statements.IndexOf(nextScope);
if (index == -1)
{
parserResult.Error("unable to find the next scope when replacing break/continue", nextScope.Span);
break;
}
var testBlock = new IfStatement();
testBlock.Condition = breakTest;
var thenBlock = new StatementList();
for (int j = index + 1; j < typedScope.Statements.Count; ++j)
thenBlock.Add(typedScope.Statements[j]);
testBlock.Then = thenBlock;
typedScope.Statements.RemoveRange(index + 1, typedScope.Statements.Count - index - 1);
if (typedScope.Statements.Count > 0 && i != breakScope.Count - 2) // do not add the statements behind the break/continue
typedScope.Statements.Add(testBlock);
}
}
var last = breakScope.LastOrDefault() as ExpressionStatement;
if (last != null)
last.Expression = new AssignmentExpression(AssignmentOperator.Default, new VariableReferenceExpression(breakFlag), new LiteralExpression(true));
}
}
public override Node Visit(IfStatement ifStatement)
{
// First, dispatch to resolve type of node at deeper level
base.Visit(ifStatement);
ifStatement.Condition.TypeInference.ExpectedType = ScalarType.Bool;
return ifStatement;
}
public override void Visit(IfStatement ifStatement)
{
containerStack.Push(ifStatement);
base.Visit(ifStatement);
containerStack.Pop();
}