public SymbolForest(PrimitiveSymbolTree primitiveSymbolTree, SymbolTreeBuilder symbolTreeBuilder, IEnumerable <FixedSymbolTree> packageTrees)
{
if (symbolTreeBuilder.Package is null)
{
throw new ArgumentException("Can't be builder for primitive symbols", nameof(symbolTreeBuilder));
}
PrimitiveSymbolTree = primitiveSymbolTree;
this.packageTrees = packageTrees.Append <ISymbolTree>(symbolTreeBuilder).ToFixedDictionary(t => t.Package !);
}
public IEnumerable <Symbol> Children(Symbol symbol)
{
if (symbol.Package is null)
{
return(PrimitiveSymbolTree.Children(symbol));
}
if (!packageTrees.TryGetValue(symbol.Package, out var tree))
{
throw new ArgumentException("Symbol must be for one of the packages in this tree", nameof(symbol));
}
return(tree.Children(symbol));
}
public SymbolForest(PrimitiveSymbolTree primitiveSymbolTree, IEnumerable <FixedSymbolTree> packageTrees)
{
PrimitiveSymbolTree = primitiveSymbolTree;
this.packageTrees = packageTrees.ToFixedDictionary(t => t.Package !, t => (ISymbolTree)t);
}
