private JoinStatement VisitJoinStatement(JoinStatement joinstmt)
{
if (joinstmt == null) return null;
JoinPatternList newJoinPatternList = new JoinPatternList();
for (int i = 0, n = joinstmt.joinPatternList.Length; i < n; i++)
newJoinPatternList.Add((JoinPattern)this.Visit(joinstmt.joinPatternList[i]));
joinstmt.joinPatternList = newJoinPatternList;
joinstmt.statement = (Statement)this.Visit(joinstmt.statement);
joinstmt.attributes = this.VisitAttributeList(joinstmt.attributes);
return joinstmt;
}
public JoinStatement(JoinPatternList joinPatternList, Statement statement, SourceContext sourceContext)
: this(joinPatternList, statement)
{
this.SourceContext = sourceContext;
}
public JoinPatternList Clone()
{
int n = this.length;
JoinPatternList result = new JoinPatternList(n);
result.length = n;
JoinPattern[] newElements = result.elements;
for (int i = 0; i < n; i++)
newElements[i] = this.elements[i];
return result;
}
public JoinStatement(JoinPatternList joinPatternList, Statement statement)
: this()
{
this.joinPatternList = joinPatternList;
this.statement = statement;
}
private JoinStatement VisitJoinStatement(JoinStatement joinstmt)
{
if (joinstmt == null) return null;
JoinPatternList newJoinPatternList = new JoinPatternList();
for (int i = 0, n = joinstmt.joinPatternList.Length; i < n; i++)
{
if (joinstmt.joinPatternList[i] is TimeoutPattern && n != 1)
{
// If we've already see a timeout in this join statement, then
// skip any subsequent ones and report an error
HandleError(joinstmt.joinPatternList[i], Error.TimeoutNotAlone);
return null;
}
JoinPattern newJoinPattern = (JoinPattern)this.Visit(joinstmt.joinPatternList[i]);
if (newJoinPattern != null)
newJoinPatternList.Add(newJoinPattern);
}
joinstmt.joinPatternList = newJoinPatternList;
joinstmt.statement = (Statement)this.Visit(joinstmt.statement);
joinstmt.attributes = this.VisitAttributeList(joinstmt.attributes);
if (joinstmt.joinPatternList.Length == 0 || joinstmt.statement == null)
return null;
return joinstmt;
}
