Meta.Fmt
Custom formatter key.
The Fun.Generic.pp
function consults this key in the metadata of a gist g
before printing the value described by the gist. If a formatter is found, the value is formatted using that formatter instead. This can also be used to indicate that you would not like to print a substructure by formatting nothing, the Fmt.ignore
function does that.
val ignore : 'a t
ignore
formats nothing.
type 'a meta := 'a Type.Gist.Meta.t
val mem : 'a meta -> bool
mem m
is true
iff m
has a binding for the key.