Loyc.SymbolPool< SymbolE > Class Template Reference

This type of SymbolPool helps create more strongly typed Symbols that simulate enums, but provide extensibility. Specifically, it creates SymbolE objects, where SymbolE is some derived class of Symbol. More...

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Source file:

• /Core/Loyc.Interfaces/Concrete/Symbol.cs

Inheritance diagram for Loyc.SymbolPool< SymbolE >:

Remarks

This type of SymbolPool helps create more strongly typed Symbols that simulate enums, but provide extensibility. Specifically, it creates SymbolE objects, where SymbolE is some derived class of Symbol.

Template Parameters

SymbolE

A derived class of Symbol that owns the pool. See the example below.

public class ShapeType : Symbol { private ShapeType(Symbol prototype) : base(prototype) { } public static new readonly SymbolPool<ShapeType> Pool = new SymbolPool<ShapeType>(p => new ShapeType(p));

public static readonly ShapeType Circle = Pool.Get("Circle"); public static readonly ShapeType Rect = Pool.Get("Rect"); public static readonly ShapeType Line = Pool.Get("Line"); public static readonly ShapeType Polygon = Pool.Get("Polygon"); }

Type Constraints

SymbolE

:

Symbol

Public Member Functions
delegate SymbolE	SymbolFactory (Symbol prototype)
	SymbolPool (SymbolFactory factory)
	SymbolPool (SymbolFactory factory, int firstID)
new SymbolE	Get (string name)
new SymbolE	Get (UString name)
new SymbolE	Get (UString name, int id)
new SymbolE	GetIfExists (UString name)
new SymbolE	GetById (int id)
new IEnumerator< SymbolE >	GetEnumerator ()
Public Member Functions inherited from Loyc.SymbolPool
	SymbolPool (int firstID)
Symbol	Get (UString name)
	Gets a symbol from this pool, or creates it if it does not exist in this pool already. More...
Symbol	Get (string?name)
Symbol	Get (UString name, int id)
	Creates a Symbol in this pool with a specific ID, or verifies that the requested Name-Id pair is present in the pool. More...
Symbol	GetIfExists (UString name)
	Gets a symbol from this pool, if the name exists already. More...
Symbol	GetGlobalOrCreateHere (string name)
	Gets a symbol from the global pool, if it exists there already; otherwise, creates a Symbol in this pool. More...
Symbol	GetById (int id)
	Gets a symbol by its ID, or null if there is no such symbol. More...
IEnumerator< Symbol >	GetEnumerator ()

Protected Member Functions
override Symbol	NewSymbol (int id, string name)
	Factory method to create a new Symbol. More...
Protected Member Functions inherited from Loyc.SymbolPool
virtual void	Get (UString name, out Symbol?sym)
	Workaround for lack of covariant return types in C# More...
virtual void	Get (UString name, int id, out Symbol sym)
	Workaround for lack of covariant return types in C# More...

Protected fields
SymbolFactory	_factory
Protected fields inherited from Loyc.SymbolPool
readonly int	_poolId

Additional Inherited Members
Public fields inherited from Loyc.SymbolPool
Symbol	this[UString name] => Get(name)
Properties inherited from Loyc.SymbolPool
bool	UsesStrongReferences [get]
int	TotalCount [get]
	Returns the number of Symbols created in this pool. More...
Static Public Member Functions inherited from Loyc.SymbolPool
static SymbolPool	new ()
static SymbolPool	new (int firstID, bool useStrongRefs)
static SymbolPool	new (int firstID, bool useStrongRefs, int poolId)
	Initializes a new Symbol pool. More...
Protected static fields inherited from Loyc.SymbolPool
static int	_nextPoolId = 1

Member Function Documentation

override Symbol Loyc.SymbolPool< SymbolE >.NewSymbol ( int  id, string  name  )

inlineprotectedvirtual

Factory method to create a new Symbol.

Reimplemented from Loyc.SymbolPool.