Dispatch enter and leave events for ConstantPathAndWriteNode
nodes and continue walking the tree.
Dispatch enter and leave events for ConstantPathOrWriteNode
nodes and continue walking the tree.
The logical inverse of ‘capture_last_end_same_indent`
When there is an invalid block with an ‘end` missing a keyword right after another `end`, it is unclear where which end is missing the keyword.
Take this example:
class Dog # 1 puts "woof" # 2 end # 3 end # 4
the problem line will be identified as:
> end # 4
This happens because lines 1, 2, and 3 are technically valid code and are expanded first, deemed valid, and hidden. We need to un-hide the matching keyword on line 1. Also work backwards and if there’s a mis-matched end, show it too
Whether this RR is in ServiceMode.
Returns a new lazy enumerator with the concatenated results of running block
once for every element in the lazy enumerator.
["foo", "bar"].lazy.flat_map {|i| i.each_char.lazy}.force #=> ["f", "o", "o", "b", "a", "r"]
A value x
returned by block
is decomposed if either of the following conditions is true:
x
responds to both each and force, which means that x
is a lazy enumerator.
x
is an array or responds to to_ary.
Otherwise, x
is contained as-is in the return value.
[{a:1}, {b:2}].lazy.flat_map {|i| i}.force #=> [{:a=>1}, {:b=>2}]
Like Enumerable#filter_map
, but chains operation to be lazy-evaluated.
(1..).lazy.filter_map { |i| i * 2 if i.even? }.first(5) #=> [4, 8, 12, 16, 20]
Like Enumerable#drop_while
, but chains operation to be lazy-evaluated.
Like Enumerable#slice_after
, but chains operation to be lazy-evaluated.
Like Enumerable#map
, but chains operation to be lazy-evaluated.
(1..Float::INFINITY).lazy.map {|i| i**2 } #=> #<Enumerator::Lazy: #<Enumerator::Lazy: 1..Infinity>:map> (1..Float::INFINITY).lazy.map {|i| i**2 }.first(3) #=> [1, 4, 9]