private ForStatement ParseFor()
{
ForStatement node = new ForStatement(curtok);
Advance(); // advance over FOR
AssertAndAdvance(TokenID.LParen);
if (curtok.ID != TokenID.Semi)
{
ExpressionNode expr = ParseLocalDeclarationOrExpression();
if (expr is LocalDeclaration)
{
node.Init = new NodeCollection<ExpressionNode>();
node.Init.Add(expr);
}
else
{
node.Init = new ExpressionList();
node.Init.Add(expr);
while (curtok.ID == TokenID.Comma)
{
Advance();
node.Init.Add(ParseExpression());
}
}
}
AssertAndAdvance(TokenID.Semi);
if (curtok.ID != TokenID.Semi)
node.Test = ParseExpression();
AssertAndAdvance(TokenID.Semi);
if (curtok.ID != TokenID.RParen)
{
node.Inc = ParseExpressionList();
}
AssertAndAdvance(TokenID.RParen);
ParseBlock(node.Statements);
if (curtok.ID == TokenID.Semi)
{
Advance();
}
return node;
}
private ForStatement ParseFor()
{
ForStatement node = new ForStatement(curtok);
Advance(); // advance over FOR
AssertAndAdvance(TokenID.LParen);
if (curtok.ID != TokenID.Semi)
{
ExpressionNode expr = ParseExpression();
node.Init.Add(expr);
while (curtok.ID == TokenID.Comma)
{
AssertAndAdvance(TokenID.Comma);
expr = ParseExpression();
node.Init.Add(expr);
}
}
AssertAndAdvance(TokenID.Semi);
if (curtok.ID != TokenID.Semi)
{
node.Test.Add(ParseExpression());
while (curtok.ID == TokenID.Comma)
{
AssertAndAdvance(TokenID.Comma);
node.Test.Add(ParseExpression());
}
}
AssertAndAdvance(TokenID.Semi);
if (curtok.ID != TokenID.RParen)
{
node.Inc.Add(ParseExpression());
while (curtok.ID == TokenID.Comma)
{
AssertAndAdvance(TokenID.Comma);
node.Inc.Add(ParseExpression());
}
}
AssertAndAdvance(TokenID.RParen);
ParseBlock(node.Statements);
if (curtok.ID == TokenID.Semi)
{
Advance();
}
return node;
}
public virtual object VisitForStatement(ForStatement forStatement, object data)
{
stackMap.Push(forStatement);
forStatement.Init.AcceptVisitor(this, data);
forStatement.Test.AcceptVisitor(this, data);
forStatement.Inc.AcceptVisitor(this, data);
forStatement.Statements.AcceptVisitor(this, data);
stackMap.Pop();
return null;
}