public ConditionalBlockAccumulatorContext(Expression startingNode)
: base(startingNode)
{
startingNode = UnwrapStatement(startingNode);
BlockName = ((HelperExpression)startingNode).HelperName.Replace("#", "");
if (new [] { "if", "unless" }.Contains(BlockName) == false)
{
throw new HandlebarsCompilerException(string.Format(
"Tried to convert {0} expression to conditional block", BlockName));
}
var testType = BlockName == "if";
var argument = HandlebarsExpression.Boolish(((HelperExpression)startingNode).Arguments.Single());
_currentCondition = testType ? (Expression)argument : Expression.Not(argument);
}
protected override System.Linq.Expressions.Expression VisitBoolishExpression(BoolishExpression bex)
{
return(HandlebarsExpression.Boolish(Visit(bex.Condition)));
}
private Expression GetElseIfTestExpression(Expression item)
{
item = UnwrapStatement(item);
return(HandlebarsExpression.Boolish(((HelperExpression)item).Arguments.Skip(1).Single()));
}