public If(TokenSpan span, IfKind kind, IReadOnlyList <Conditional> conditionals, Else?elseBody)
{
Span = span;
Kind = kind;
Conditionals = conditionals;
ElseBody = elseBody;
}
/// <summary>
/// Initializes a new instance of the <see cref="Prune"/> class.
/// </summary>
/// <param name="condition">Boolean expression; if it evaluates to true, then this branch
/// is evaluated.</param>
/// <param name="trueBranch">True if this is the node corresponding to the true branch;
/// false if this node corresponds to the false branch.</param>
/// <param name="kind">The type of prune instruction.</param>
/// <param name="location">The source code location of this instruction.</param>
public Prune(Expression condition,
bool trueBranch,
IfKind kind,
Location location) : base(location)
{
Condition = condition;
TrueBranch = trueBranch;
Kind = kind;
}
private IExpression If(TK whichIf, IfKind kind)
{
Begin();
var conditional = Conditional(whichIf);
var conditionals = Collect(conditional, TryElseIf);
var @else = TryElse();
Match(TK.End);
return(new If(End(), kind, conditionals, @else));
}
