Heist.Compiled.LowLevel

Lower level promise functions

data Promise a

Promises are used for referencing the results of future runtime computations during load time splice processing.

newEmptyPromise :: HeistT n IO (Promise a)

Creates an empty promise.

getPromise :: Monad n => Promise a -> RuntimeSplice n a

Gets the result of a promised runtime computation.

putPromise :: Monad n => Promise a -> a -> RuntimeSplice n ()

Adds a promise to the runtime splice context.

adjustPromise :: Monad n => Promise a -> (a -> a) -> RuntimeSplice n ()

Modifies a promise.