public virtual Statement VisitFor(For For)
{
if (For == null) return null;
For.Initializer = this.VisitStatementList(For.Initializer);
For.Invariants = this.VisitLoopInvariantList(For.Invariants);
For.Condition = this.VisitExpression(For.Condition);
For.Incrementer = this.VisitStatementList(For.Incrementer);
For.Body = this.VisitBlock(For.Body);
return For;
}
public override Statement VisitFor(For For)
{
if (For == null) return null;
return base.VisitFor((For)For.Clone());
}
public override Statement VisitFor(For For)
{
WriteLine("for (");
In();
if (((StatementList)For.Initializer).Count > 0)
this.VisitStatementList(For.Initializer);
else
WriteLine(";");
WriteStart(string.Empty);
this.VisitExpression(For.Condition);
WriteFinish(";");
this.processingForIncrementers = true;
WriteStart(string.Empty);
this.VisitStatementList(For.Incrementer);
this.processingForIncrementers = false;
Out();
WriteLine(")");
this.VisitBlock(For.Body);
return For;
}
private Block ParseFor(TokenSet followers){
For For = new For();
For.SourceContext = this.scanner.CurrentSourceContext;
Debug.Assert(this.currentToken == Token.For);
this.GetNextToken();
SourceContext sctx = this.scanner.CurrentSourceContext;
this.Skip(Token.LeftParenthesis);
TokenSet followersOrRightParenthesisOrSemicolon = followers|Parser.RightParenthesisOrSemicolon;
For.Initializer = this.ParseForInitializer(followersOrRightParenthesisOrSemicolon);
For.Condition = this.currentToken == Token.Semicolon ? null : this.ParseExpression(followersOrRightParenthesisOrSemicolon);
this.Skip(Token.Semicolon);
For.Incrementer = this.ParseForIncrementer(followers|Token.RightParenthesis);
this.ParseBracket(sctx, Token.RightParenthesis, followers|Parser.StatementStart, Error.ExpectedRightParenthesis);
For.SourceContext.EndPos = this.scanner.endPos;
For.Invariants = ParseLoopInvariants(followers);
SourceContext savedCompoundStatementOpeningContext = this.compoundStatementOpeningContext;
For.SourceContext.EndPos = this.scanner.endPos;
this.compoundStatementOpeningContext = For.SourceContext;
Block b = this.ParseStatementAsBlock(followers);
For.Body = b;
if (b != null)
For.SourceContext.EndPos = b.SourceContext.EndPos;
this.compoundStatementOpeningContext = savedCompoundStatementOpeningContext;
StatementList statements = new StatementList(1);
statements.Add(For);
return new Block(statements, For.SourceContext, this.insideCheckedBlock, this.insideUncheckedBlock, this.inUnsafeCode);
}
public EventingVisitor(Action<For> visitFor) { VisitedFor += visitFor; } public event Action<For> VisitedFor; public override Statement VisitFor(For For) { if (VisitedFor != null) VisitedFor(For); return base.VisitFor(For); }
