Issy Long 6de61e4994
Ensure that stanza grouping works for nested stanzas with comments
- Since moving `comments_hash` to `Stanza`, we've been using the wrong
  kind of "comments": the comments for the _stanza_, not the comments
  for the entire Cask.
- Add a test to ensure this actually works. There was previously an
  infinite loop here due to the bad `comments`, visible in a `StanzaOrder`
  cop test, which I speculatively added a failing test for. Turns out
  that supporting nested stanza _ordering_ (vs. just grouping) is a
  whole separate piece of work (there are multiple TODOs there already),
  so I've backed that out and will do that separately.
2023-04-13 15:59:18 +01:00

75 lines
2.0 KiB
Ruby

# typed: true
# frozen_string_literal: true
require "forwardable"
module RuboCop
module Cask
module AST
# This class wraps the AST block node that represents the entire cask
# definition. It includes various helper methods to aid cops in their
# analysis.
class CaskBlock
extend Forwardable
def initialize(block_node, comments)
@block_node = block_node
@comments = comments
end
attr_reader :block_node, :comments
alias cask_node block_node
def_delegator :cask_node, :block_body, :cask_body
def header
@header ||= CaskHeader.new(cask_node.method_node)
end
def stanzas
return [] unless cask_body
@stanzas ||= cask_body.each_node
.select(&:stanza?)
.map { |node| Stanza.new(node, comments) }
end
def toplevel_stanzas
# If a `cask` block only contains one stanza, it is that stanza's direct parent,
# otherwise stanzas are grouped in a block and `cask` is that block's parent.
is_toplevel_stanza = if cask_body.begin_block?
->(stanza) { stanza.parent_node.parent.cask_block? }
else
->(stanza) { stanza.parent_node.cask_block? }
end
@toplevel_stanzas ||= stanzas.select(&is_toplevel_stanza)
end
def sorted_toplevel_stanzas
@sorted_toplevel_stanzas ||= sort_stanzas(toplevel_stanzas)
end
private
def sort_stanzas(stanzas)
stanzas.sort do |s1, s2|
i1 = stanza_order_index(s1)
i2 = stanza_order_index(s2)
if i1 == i2 || i1.blank? || i2.blank?
i1 = stanzas.index(s1)
i2 = stanzas.index(s2)
end
i1 - i2
end
end
def stanza_order_index(stanza)
Constants::STANZA_ORDER.index(stanza.stanza_name)
end
end
end
end
end