package prbnmcn-cgrph

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Module Cgraph.VarSource

Var is the module type of variables, which are the first kind of input nodes available to users.

Sourcetype 'a t

'a t is the type of a variable holding a value of type 'a

Sourceval create : 'a -> 'a t

create x creates a variable with initial value x

Sourceval peek : 'a t -> 'a

peek v returns the value currently held in the variable.

Sourceval set : 'a t -> 'a -> unit

set v x updates the variable v to hold the value x. This automatically invalidates all nodes that depend directly and indirectly on v.