Function rustc_const_eval::const_eval::fn_queries::constness
source · Expand description
Checks whether an item is considered to be const
. If it is a constructor, it is const. If
it is a trait impl/function, return if it has a const
modifier. If it is an intrinsic,
report whether said intrinsic has a rustc_const_{un,}stable
attribute. Otherwise, return
Constness::NotConst
.