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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verbs - Proper usage of the word thunk - English Language Usage . . . Testing dispatched actions in Redux thunk with Jest How to use Redux-Thunk with Redux Toolkits createSlice? What is the difference between Redux Thunk and Redux Saga? What is dispatch(. . ). unwrap() in redux-toolkit? - Stack Overflow