Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

Psych::Handler#alias

alias(anchor)

ext/psych/lib/psych/handler.rb View on GitHub ↗

# File tmp/rubies/ruby-4.1.0-preview1/ext/psych/lib/psych/handler.rb, line 110
def alias anchor
end

Called when an alias is found to anchor. anchor will be the name of the anchor found.

Here we have an example of an array that references itself in YAML:

--- &ponies
- first element
- *ponies

&ponies is the anchor, *ponies is the alias. In this case, alias is called with “ponies”.

See also #empty #end_document also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0