public int AddResumePoint(ResumableStatement stmt)
{
if (resume_points == null)
resume_points = new List<ResumableStatement> ();
resume_points.Add (stmt);
return resume_points.Count;
}
/*
public override bool CheckRethrow (Location loc)
{
return CurrentUsageVector.Next != null || Parent.CheckRethrow (loc);
}
*/
public override bool AddResumePoint (ResumableStatement stmt, out int pc)
{
pc = async_init.AddResumePoint (stmt);
return true;
}
public override bool AddResumePoint (ResumableStatement stmt, out int pc)
{
int errors = Report.Errors;
Parent.AddResumePoint (this.stmt, out pc);
if (errors == Report.Errors) {
if (finally_vector == null)
this.stmt.AddResumePoint (stmt, pc);
else {
if (stmt is AwaitStatement) {
Report.Error (1984, stmt.loc, "The `await' operator cannot be used in the body of a finally clause");
} else {
Report.Error (1625, stmt.loc, "Cannot yield in the body of a finally clause");
}
}
}
return true;
}
public override bool AddResumePoint (ResumableStatement stmt, out int pc)
{
throw new InternalErrorException ("A yield in a non-iterator block");
}
public override bool AddResumePoint (ResumableStatement stmt, out int pc)
{
int errors = Report.Errors;
Parent.AddResumePoint (tc.IsTryCatchFinally ? stmt : tc, out pc);
if (errors == Report.Errors) {
if (stmt is AwaitStatement) {
if (CurrentUsageVector.Next != null) {
Report.Error (1985, stmt.loc, "The `await' operator cannot be used in the body of a catch clause");
} else {
this.tc.AddResumePoint (stmt, pc);
}
} else {
if (CurrentUsageVector.Next == null)
Report.Error (1626, stmt.loc, "Cannot yield a value in the body of a try block with a catch clause");
else
Report.Error (1631, stmt.loc, "Cannot yield a value in the body of a catch clause");
}
}
return true;
}
public override bool AddResumePoint (ResumableStatement stmt, out int pc)
{
pc = iterator.AddResumePoint (stmt);
return false;
}
public virtual bool AddResumePoint (ResumableStatement stmt, out int pc)
{
return Parent.AddResumePoint (stmt, out pc);
}
public override bool AddResumePoint (ResumableStatement stmt, Location loc, out int pc)
{
int errors = Report.Errors;
Parent.AddResumePoint (this.stmt, loc, out pc);
if (errors == Report.Errors) {
if (finally_vector == null)
this.stmt.AddResumePoint (stmt, pc);
else
Report.Error (1625, loc, "Cannot yield in the body of a finally clause");
}
return true;
}
public override bool AddResumePoint (ResumableStatement stmt, Location loc, out int pc)
{
int errors = Report.Errors;
Parent.AddResumePoint (stmt, loc, out pc);
if (errors == Report.Errors) {
if (CurrentUsageVector.Next == null)
Report.Error (1626, loc, "Cannot yield a value in the body of a try block with a catch clause");
else
Report.Error (1631, loc, "Cannot yield a value in the body of a catch clause");
}
return true;
}
public void AddResumePoint (ResumableStatement stmt, int pc)
{
if (resume_points == null) {
resume_points = new List<ResumableStatement> ();
first_resume_pc = pc;
}
if (pc != first_resume_pc + resume_points.Count)
throw new InternalErrorException ("missed an intervening AddResumePoint?");
resume_points.Add (stmt);
}