Feature gate:#![feature("result_option_map_or_default")]

This is a tracking issue for addingResult::map_or_default() andOption::map_or_default(). Open RFCrust-lang/rfcs#3148

Public API

// core::resultimpl<T,E>Result<T,E>{pubfnmap_or_default<U,F>(self,f:F) ->UwhereU:Default,F:FnOnce(T) ->U{ ..}}

// core::optionimpl<T>Option<T>{pubfnmap_or_default<U,F>(self,f:F) ->UwhereU:Default,F:FnOnce(T) ->U{ ..}}

Steps / History

• Implementation:AddResult::map_or_default andOption::map_or_default #141659
• Final comment period (FCP)¹
• Stabilization PR

Unresolved Questions

• None yet.