It can reduce startup times in your C# programs in cases where its overhead is dwarfed by the cost of the initialization. This type presents a reliable lazy initialization capability. Lazy programmers should consider the Lazy type. Thunks: The delayed objects are called thunks, and the term forcing refers to the creation of the lazy object (page 401). This is described in depth in the chapter on metalinguistic abstraction in the Structure and Interpretation of Computer Programs. Languages such as Lisp use lazy initialization.
#Lazy definition how to
I was too lazy to learn how to read music. Lazy and incompetent police officers are letting the public down. Lazy stereotype definition: If someone is lazy, they do not want to work or make any effort to do anything. Lazy evaluation is an established concept. adjective If someone is lazy, they do not want to work or make any effort to do anything. The Func will be invoked when the Value property is referenced.Ĭoncept. In an overloaded constructor, you can specify thread safety, and even specify a Func type that serves as a factory design pattern method. Memory Hierarchy: Performance OptimizationĬonstructors. Memory operations, though, would not benefit from Lazy initialization to the same extent. Therefore, it is advisable that you only use Lazy on slower, hefty objects.įor example, if an object must read a file, then Lazy will help performance because file IO is slow.
#Lazy definition code
There is substantial code complexity internal to the Lazy type and this will result in overhead and a performance penalty. The methods LazyInitValue and then CreateValue typically lead to a call to Activator.CreateInstance, which essentially is a convoluted way to invoke the target constructor. The Lazy type accounts for boxed value types in many places. For Lazy, the Value property has some elaborate logic that constructs the lazy object. This is an efficient way to learn about making types. Then, when the Value property is accessed, the Test class constructor is executed and memory allocation occurs.įinally: The IsValueCreated property returns True and the Test instance can be used like any other object.Ĭonsole.WriteLine("IsValueCreated = ", test.Length) The IsValueCreated property is False at this point. In the Main entry point, a new Lazy instance of the Test type is created. This class contains a constructor and an allocation occurs in the constructor. In this program, you will first see the Test class. In this program, you will first see the Test class. To start, lets examine a simple example of the Lazy type. To start, let's examine a simple example of the Lazy type. NET Framework now offers the Lazy type, which provides this feature.Įxample. This has always been possible to implement. It typically improves the startup time of a C# application. Send us feedback about these examples.This C# program demonstrates the Lazy class. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'slothful.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. 2021 Another echoing aircraft hangar is home to a set representing a perfect Depression-era kitchen, where Rebel Wilson’s droll, slothful Jennyanydots will lounge her days away. Ingrid Nelson, The Conversation, 19 Mar. Jon Bream, Star Tribune, At the same time, others construed even the most slothful forms of idleness as a bold resistance to modernity’s greatest ills. Imagine a mom describing a sleep-deprived teenager (read this in your best mom voice it’s more fun): Oh.
2021 After releasing 12 albums in 13 months, Twin Cities guitarist Cory Wong will end his momentarily slothful ways and drop just his second album this year. What Does the Sin of Sloth Mean The short definition of slothful is simply laziness. not eager or willing to work or exert oneself indolent slothful 2.
Judith Thurman, The New Yorker, 13 Sep. 2021 The proud stagger beneath a sack of boulders, and the slothful atone with manic activity. 2021 Selfish, feckless, self-deluded, weak-willed yet childishly willful, manipulative, slothful, and mendacious: How can such a despicable character also be such a likable one? - Sigrid Nunez, Harper's Magazine, 28 Sep. 2013 Procrastination can be slothful or prudent, a vice or a virtue, depending on your habits and the tasks at hand. Brendan Borrell, Discover Magazine, 10 Apr. 2022 The pilfered offspring return with the raiders to their nests, then hatch and grow up to become live-in slaves, tasked with the feeding and care of their slothful masters and their masters’ brood. Recent Examples on the Web At our test track, the buzzy little SUV needed a slothful 9.2 seconds to hit 60 mph.
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