public virtual object Visit(GotoCase gotoCase)
{
return(null);
}
public virtual Statement VisitGotoCase(GotoCase gotoCase, GotoCase changes, GotoCase deletions, GotoCase insertions){
this.UpdateSourceContext(gotoCase, changes);
if (gotoCase == null) return changes;
if (changes != null){
if (deletions == null || insertions == null)
Debug.Assert(false);
else{
}
}else if (deletions != null)
return null;
return gotoCase;
}
public virtual Differences VisitGotoCase(GotoCase gotoCase1, GotoCase gotoCase2){
Differences differences = new Differences(gotoCase1, gotoCase2);
if (gotoCase1 == null || gotoCase2 == null){
if (gotoCase1 != gotoCase2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
GotoCase changes = (GotoCase)gotoCase2.Clone();
GotoCase deletions = (GotoCase)gotoCase2.Clone();
GotoCase insertions = (GotoCase)gotoCase2.Clone();
Differences diff = this.VisitExpression(gotoCase1.CaseLabel, gotoCase2.CaseLabel);
if (diff == null){Debug.Assert(false); return differences;}
changes.CaseLabel = diff.Changes as Identifier;
deletions.CaseLabel = diff.Deletions as Identifier;
insertions.CaseLabel = diff.Insertions as Identifier;
Debug.Assert(diff.Changes == changes.CaseLabel && diff.Deletions == deletions.CaseLabel && diff.Insertions == insertions.CaseLabel);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
if (differences.NumberOfDifferences == 0){
differences.Changes = null;
differences.Deletions = null;
differences.Insertions = null;
}else{
differences.Changes = changes;
differences.Deletions = deletions;
differences.Insertions = insertions;
}
return differences;
}
public override object Visit (GotoCase gotoCase)
{
var result = new GotoCaseStatement ();
result.AddChild (new CSharpTokenNode (Convert (gotoCase.loc), GotoCaseStatement.GotoKeywordRole), GotoCaseStatement.GotoKeywordRole);
var location = LocationsBag.GetLocations (gotoCase);
if (location != null)
result.AddChild (new CSharpTokenNode (Convert (location [0]), GotoCaseStatement.CaseKeywordRole), GotoCaseStatement.CaseKeywordRole);
if (gotoCase.Expr != null)
result.AddChild ((Expression)gotoCase.Expr.Accept (this), Roles.Expression);
if (location != null && location.Count > 1)
result.AddChild (new CSharpTokenNode (Convert (location [1]), Roles.Semicolon), Roles.Semicolon);
return result;
}
void case_974()
#line 6487 "cs-parser.jay"
{
yyVal = new GotoCase ((Expression) yyVals[-1+yyTop], GetLocation (yyVals[-3+yyTop]));
lbag.AddStatement (yyVal, GetLocation (yyVals[-2+yyTop]), GetLocation (yyVals[0+yyTop]));
}
public virtual Statement VisitGotoCase(GotoCase gotoCase){
if (gotoCase == null) return null;
gotoCase.CaseLabel = this.VisitExpression(gotoCase.CaseLabel);
return gotoCase;
}
public override Statement VisitGotoCase(GotoCase gotoCase) {
if (gotoCase == null) return null;
if (this.switchCaseCount <= 0) {
this.HandleError(gotoCase, Error.InvalidGotoCase);
return null;
}
Literal lit = gotoCase.CaseLabel as Literal;
if (lit == null && gotoCase.CaseLabel != null) {
this.HandleError(gotoCase.CaseLabel, Error.ConstantExpected);
return null;
}
object labelVal = null;
if (lit != null) {
if (this.currentSwitchGoverningType != null)
lit = this.typeSystem.ImplicitLiteralCoercionForLabel(lit, lit.Type, this.currentSwitchGoverningType, this.TypeViewer);
if (lit == null) return null;
lit.SourceContext = gotoCase.CaseLabel.SourceContext;
gotoCase.CaseLabel = lit;
labelVal = lit.Value;
}
SwitchCaseList currentCases = this.currentSwitchCases;
for (int i = 0, n = currentCases == null ? 0 : currentCases.Count; i < n; i++) {
SwitchCase scase = currentCases[i];
if (scase == null) continue;
if (gotoCase.CaseLabel == null) {
if (scase.Label != null) continue;
return new Branch(null, scase.Body, gotoCase.SourceContext);
}
Literal caseLit = scase.Label as Literal;
object caseVal = caseLit == null ? null : caseLit.Value;
if (caseVal == null || labelVal == null) continue;
object labelValAsCaseType = labelVal;
try {
labelValAsCaseType = System.Convert.ChangeType(labelVal, caseVal.GetType());
} catch { }
if (caseVal.Equals(labelValAsCaseType))
return new Branch(null, scase.Body, gotoCase.SourceContext);
}
if (gotoCase.CaseLabel == null)
this.HandleError(gotoCase, Error.LabelNotFound, "default:");
else
this.HandleError(gotoCase, Error.LabelNotFound, "case "+gotoCase.CaseLabel.SourceContext.SourceText+":");
return null;
}
public virtual void VisitGotoCase(GotoCase gotoCase)
{
if (gotoCase == null) return;
this.VisitExpression(gotoCase.CaseLabel);
}
public virtual object Visit (GotoCase gotoCase)
{
return null;
}
public override Statement VisitGotoCase(GotoCase gotoCase)
{
if (gotoCase == null) return null;
return base.VisitGotoCase((GotoCase)gotoCase.Clone());
}
public virtual Statement VisitGotoCase(GotoCase gotoCase1, GotoCase gotoCase2)
{
if (gotoCase1 == null) return null;
if (gotoCase2 == null)
{
gotoCase1.CaseLabel = this.VisitExpression(gotoCase1.CaseLabel, null);
}
else
{
gotoCase1.CaseLabel = this.VisitExpression(gotoCase1.CaseLabel, gotoCase2.CaseLabel);
}
return gotoCase1;
}
