private static BufferWriter GetWriter(MetadataIdentity source, IRelationHeader header)
{
RelationCacheKey key = new RelationCacheKey(source, header);
return(cache.GetOrAdd(key, _ =>
{
BufferParser parser = new BufferParser();
BufferTree tree = parser.Parse(source, header);
RelationCompiler compiler = new RelationCompiler();
return compiler.Compile(tree);
}));
}
public BufferWriter Compile(BufferTree tree)
{
DotNotation notation = tree.Notation;
Delegate[] binders = this.GetBindersArgument(tree);
IRelationMetadata[] metadata = this.GetMetadataArgument(tree);
BufferInternalWriter initializer = this.Compile(tree.Source, tree.Queues, tree.Header.Degree);
List <BufferInternalWriter> writers = tree.Queues.Select(this.Compile).ToList();
return(new BufferWriter()
{
Initializer = this.Recompile(initializer, notation, binders, metadata),
Queues = writers.Select(w => this.Recompile(w, notation, binders, metadata)).ToArray(),
});
}