com.opendatagroup.hadrian.signature
the version number to query
true
if the feature exists and is not deprecated in version now
, false
otherwise.
the version number to query
true
if the feature exists and is deprecated in version now
, false
otherwise.
Describes the range of support of a function signature (or, in the future, special form) in terms of an optional beginning of life (birth), and optional deprecation and end of life (death).
If a deprecation is specified, a death must be as well, and vice-versa. Whether or not a birth is specified is independent.
At a given PFAVersion PFAVersion, the Lifespan has three possible states: current (method
current
returnstrue
), deprecated (methoddeprecated
returnstrue
), and non-existent (bothcurrent
anddeprecated
returnfalse
). Methodcurrent
anddeprecated
are mutually exclusive; for a given PFAVersion PFAVersion, they would never both returntrue
.