private Statement ParseIfStatement()
{
Eat(TokenKind.KeywordIf);
var start = GetStart();
List<Tuple<Expression, Statement>> testPairs = new List<Tuple<Expression, Statement>>();
Eat(TokenKind.LeftParenthesis);
Expression test = ParseExpression();
Eat(TokenKind.RightParenthesis);
Statement ifTrue = ParseBlockOrStatement();
Statement ifFalse = null;
testPairs.Add(new Tuple<Expression, Statement>(test, ifTrue));
while (MaybeEat(TokenKind.KeywordElse))
{
test = null;
if (MaybeEat(TokenKind.KeywordIf))
{
Eat(TokenKind.LeftParenthesis);
test = ParseExpression();
Eat(TokenKind.RightParenthesis);
ifTrue = ParseBlockOrStatement();
testPairs.Add(new Tuple<Expression, Statement>(test, ifTrue));
continue;
}
ifFalse = ParseBlockOrStatement();
break;
}
IfElseStatement ret = new IfElseStatement(testPairs.ToArray(), ifFalse);
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
public override bool Walk(IfElseStatement node)
{
node.Parent = _currentScope;
return base.Walk(node);
}
