definition:
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wRadioMaybe :: Eq a => WuiSpec a -> [HtmlExp] -> [HtmlExp] -> a
-> WuiSpec (Maybe a)
wRadioMaybe wspec hnothing hjust = wMaybe wBool wspec
where
wBool = wRadioSelect (\b->if b then hjust else hnothing) [False,True]
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demand:
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no demanded arguments
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deterministic:
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possibly non-deterministic operation
|
documentation:
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--- A WUI for Maybe values where radio buttons are used to switch
--- between Nothing and Just.
--- The value WUI is shown after the radio button WUI.
--- @param wspec - a WUI specification for the type of potential values
--- @param hexps - a list of HTML expressions shown after the Nothing button
--- @param hexps - a list of HTML expressions shown after the Just button
--- @param def - a default value if the current value is Nothing
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failfree:
|
<FAILING>
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indeterministic:
|
referentially transparent operation
|
infix:
|
no fixity defined
|
iotype:
|
{(_,_,_,_) |-> {wMaybe}}
|
name:
|
wRadioMaybe
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precedence:
|
no precedence defined
|
result-values:
|
{wMaybe}
|
signature:
|
Prelude.Eq a => WuiSpec a -> [HTML.Base.HtmlExp] -> [HTML.Base.HtmlExp] -> a
-> WuiSpec (Prelude.Maybe a)
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solution-complete:
|
operation might suspend on free variables
|
terminating:
|
possibly non-terminating
|
totally-defined:
|
possibly non-reducible on same data term
|