public override AstNode Visit(GotoCaseStatement node)
{
// Store the current switch in the node.
node.SetSwitch(currentSwitch);
// Get the constant expression.
Expression constant = node.GetLabel();
// Expand it.
CaseLabel targetLabel;
if(constant != null)
{
constant = (Expression)constant.Accept(this);
node.SetLabel(constant);
// Get the constant value.
IChelaType coercionType = currentSwitch.GetCoercionType();
node.SetCoercionType(coercionType);
}
else
{
// Make sure the current switch contains a default case.
targetLabel = currentSwitch.GetDefaultCase();
if(targetLabel == null)
Error(node, "current switch doesn't contain a default case.");
node.SetTargetLabel(targetLabel);
}
return node;
}
public override AstNode Visit(GotoCaseStatement node)
{
// Begin the node.
builder.BeginNode(node);
// Get the constant expression.
Expression constant = node.GetLabel();
// Expand it.
if(constant != null)
{
// Get the constant value.
IChelaType coercionType = node.GetCoercionType();
ConstantValue constantValue = (ConstantValue)constant.GetNodeValue();
constantValue = constantValue.Cast(coercionType);
// Make sure the case is in the current switch.
IDictionary<ConstantValue, CaseLabel> caseDict = node.GetSwitch().CaseDictionary;
CaseLabel targetLabel;
if(!caseDict.TryGetValue(constantValue, out targetLabel))
Error(node, "current switch doesn't contain a case for [{1}]{0}.", constantValue.ToString(), constantValue.GetHashCode());
node.SetTargetLabel(targetLabel);
}
// Jump to the target case.
CaseLabel targetCase = node.GetTargetLabel();
builder.CreateJmp(targetCase.GetBlock());
// End the node.
return builder.EndNode();
}