Commons

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Cross-cutting utilities for DAFce applications — smart pointers, cancellation tokens, async futures, process execution, RTTI helpers, enumerable abstractions, command-line parsing, and more.

Modules at a glance

Unit	Highlights
`Daf.MemUtils`	`ARC<T>` smart pointer (`reference to function: T`), `TFinalizer`, `TPurgatory`
`Daf.Threading`	`ICancellationToken`, `ICancellationTokenSource` (factory: `CreateCancellationTokenSource`), `TShutdownHook`
`Daf.Enumerable`	`ToIEnumerable<T>` adapter, `IInterfaceList<T>`, `TInterfaceList<T>`
`Daf.SystemProcess`	`TSystemProcess` — async external process runner with events
`Daf.CmdLn.Parser`	Command-line argument parser
`Daf.Rtti`	RTTI helpers — `_T.Extends`, type predicates
`Daf.Activator`	Create class instances via RTTI
`Daf.Arrays`	`TArrayHelper` (`Map`, `Trim`), `TSmartArray<T>` (LINQ-style: `Where`, `Select`, `Contains`, `Sort`, …)
`Daf.Expression`	Simple expression evaluator
`Daf.Types`	Common base types

Quick examples

ARC smart pointer

uses Daf.MemUtils;

var Ref := ARC.From<TMyObject>(TMyObject.Create);
Ref().DoWork;
// auto-freed when Ref goes out of scope

Cancellation token

uses Daf.Threading;

var Cts   := CreateCancellationTokenSource;
var Token := Cts.Token;

TThread.CreateAnonymousThread(procedure
begin
  while not Token.IsCancellationRequested do
    DoWork;
end).Start;

Sleep(5000);
Cts.Cancel;

External process (async)

uses Daf.SystemProcess;

var Process := TSystemProcess.Builder
  .Command('git')
  .CmdArgs(['--version'])
  .OnStdOut(procedure(Line: string) begin WriteLn(Line); end)
  .OnCompleted(procedure(R: TProcessResult) begin WriteLn('Done, exit=', R.ExitCode); end)
  .Build;

Process.ExecuteAsync;

Documentation

📖 Usage Guide — full API reference for all units