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thunk    音标拼音: [θ'ʌnk]
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thunk
n 1: a dull hollow sound; "the basketball made a thunk as it hit
the rim"

/thuhnk/ 1. "A piece of coding which provides an
address", according to P. Z. Ingerman, who invented thunks in
1961 as a way of binding {actual parameters} to their formal
definitions in {ALGOL 60} {procedure} calls. If a procedure
is called with an expression in the place of a {formal
parameter}, the compiler generates a thunk which computes the
expression and leaves the address of the result in some
standard location.

2. The term was later generalised to mean an expression,
frozen together with its {environment} (variable values), for
later evaluation if and when needed (similar to a
"{closure}"). The process of unfreezing these thunks is
called "forcing".

3. A {stubroutine}, in an {overlay} programming environment,
that loads and jumps to the correct overlay.

Compare {trampoline}.

There are a couple of onomatopoeic myths circulating about the
origin of this term. The most common is that it is the sound
made by data hitting the {stack}; another holds that the sound
is that of the data hitting an {accumulator}. Yet another
suggests that it is the sound of the expression being unfrozen
at argument-evaluation time. In fact, according to the
inventors, it was coined after they realised (in the wee hours
after hours of discussion) that the type of an argument in
{ALGOL 60} could be figured out in advance with a little
{compile-time} thought, simplifying the evaluation machinery.
In other words, it had "already been thought of"; thus it was
christened a "thunk", which is "the past tense of "think" at
two in the morning".

4. ({Microsoft Windows} programming) {universal thunk},
{generic thunk}, {flat thunk}.

[{Jargon File}]

(1997-10-11)


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  • THUNK Definition Meaning - Merriam-Webster
    The meaning of THUNK is dialectal past tense and past participle of think
  • Thunk - Wikipedia
    In computer programming, a thunk is a subroutine used to inject a calculation into another subroutine Thunks are primarily used to delay a calculation until its result is needed, or to insert operations at the beginning or end of the other subroutine
  • Thunk. AI | Automate business workflows with reliable AI agents
    Thunk AI is a self-service AI agent platform to automate intelligent workflows and work projects
  • Gummy Thunk | Digital Laser Designs for Hat Burning More
    Gummy Thunk is the original inventor of full brim laser hat burning, laser hat stands (jigs), laser hat burning designs, pre-separated printable hand burning hat designs, projector hand burning hat designs, and LACIE Tools We pride ourselves in creating a path for makers and creators to explore the possibilities in the art of hat burning
  • Thunk - Sovereign Personal AI
    What is Thunk? Thunk is the flagship application built on the Thinking System framework It's a personal AI that combines local-first execution, verifiable behaviours, and a peer-to-peer fabric that belongs to everyone Unlike cloud-based AI services, Thunk runs on your own hardware
  • Thunk
    Knowing what to build, solving real problems for users, and maintaining complex production applications that scales for years? That's hard And that's where we thrive We help clients truly own their products Writing code is easy





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