Coerce Priority Queue to List

Returns queue entries as a plain list of records with fields value and priority, in queue sequence order.

Usage

# S3 method for class 'priority_queue'
as.list(x, ..., drop_meta = FALSE)

Arguments

x

A priority_queue.

...

Unused.

drop_meta

Logical scalar. When FALSE (default), returns full queue entry records (value + priority). When TRUE, returns payload values only.

Value

A plain list of queue entry records (drop_meta = FALSE) or payload values (drop_meta = TRUE).

Details

Each returned entry is a record with fields value and priority. Entry names (when present) are preserved on the returned list.

Examples

q <- priority_queue("a", "b", priorities = c(2, 1))
as.list(q)
#> [[1]]
#> [[1]]$value
#> [1] "a"
#> 
#> [[1]]$priority
#> [1] 2
#> 
#> 
#> [[2]]
#> [[2]]$value
#> [1] "b"
#> 
#> [[2]]$priority
#> [1] 1
#> 
#> 
as.list(q, drop_meta = TRUE)
#> [[1]]
#> [1] "a"
#> 
#> [[2]]
#> [1] "b"
#>