fetchPut

See HashMap.fetchPut

Additionally contains KV.used to indicate if the value was used before the fetch

Parameters

self:*Self: *Self
allocator:Allocator: Allocator
key:K: K
value:V: V

Source

Implementation

pub fn fetchPut(self: *Self, allocator: Allocator, key: K, value: V) Allocator.Error!?KV {
            const kv = try self.map.fetchPut(allocator, key, .{ .inner = value }) orelse return null;
            return .{ .key = kv.key, .value = kv.value.inner, .used = kv.value.used };
        }