Class LeastRecentlyUsedCompiledDelegateCache

Compiled delegate cache with a least recently used (LRU) eviction policy.

Inheritance
System.Object
LeastRecentlyUsedCompiledDelegateCache
Namespace: System.Linq.Expressions
Assembly: Nuqleon.Linq.CompilerServices.dll
Syntax
public class LeastRecentlyUsedCompiledDelegateCache : Object, ICompiledDelegateCache

Constructors

LeastRecentlyUsedCompiledDelegateCache(Int32)

Creates a new compiled delegate cache with a least recently used (LRU) eviction policy.

Declaration
public LeastRecentlyUsedCompiledDelegateCache(int capacity)
Parameters
Type Name Description
System.Int32 capacity

Maximum capacity of the cache.

Properties

Count

Gets the number of entries in the cache.

Declaration
public int Count { get; }
Property Value
Type Description
System.Int32

Methods

Clear()

Clears the cache.

Declaration
public void Clear()

GetOrAdd(LambdaExpression)

Gets a compiled delegate from the cache if the specified lambda expression already has been compiled. Otherwise, compiles the lambda expression to a delegate and stores the result.

Declaration
public Delegate GetOrAdd(LambdaExpression expression)
Parameters
Type Name Description
System.Linq.Expressions.LambdaExpression expression

Lambda expression to look up in the cache.
Returns
Type Description
System.Delegate

Compiled delegate to execute the lambda expression.

OnAdded(LambdaExpression, Delegate)

Raises the Added event with the specified arguments.

Declaration
protected virtual void OnAdded(LambdaExpression expression, Delegate delegate)
Parameters
Type Name Description
System.Linq.Expressions.LambdaExpression expression

Expression found in the cache.
System.Delegate delegate

Compiled delegate of the expression.

OnEvicted(LambdaExpression, Delegate)

Raises the Evicted event with the specified arguments.

Declaration
protected virtual void OnEvicted(LambdaExpression expression, Delegate delegate)
Parameters
Type Name Description
System.Linq.Expressions.LambdaExpression expression

Expression found in the cache.
System.Delegate delegate

Compiled delegate of the expression.

OnHit(LambdaExpression, Delegate)

Raises the Hit event with the specified arguments.

Declaration
protected virtual void OnHit(LambdaExpression expression, Delegate delegate)
Parameters
Type Name Description
System.Linq.Expressions.LambdaExpression expression

Expression found in the cache.
System.Delegate delegate

Compiled delegate of the expression.

Events

Added

Event raised when a cache addition occurs.

Declaration
public event EventHandler<CacheEventArgs> Added
Event Type
Type Description
System.EventHandler<CacheEventArgs>

Evicted

Event raised when a cache eviction occurs.

Declaration
public event EventHandler<CacheEventArgs> Evicted
Event Type
Type Description
System.EventHandler<CacheEventArgs>

Hit

Event raised when a cache hit occurs.

Declaration
public event EventHandler<CacheEventArgs> Hit
Event Type
Type Description
System.EventHandler<CacheEventArgs>

Implements