Module: Ruby2JS::Filter::MatchAll

Includes:
SEXP
Defined in:
lib/ruby2js/filter/matchAll.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SEXP

#S, #s

Class Method Details

.reorder(filters) ⇒ Object

ensure matchAll is before Functions in the filter list



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# File 'lib/ruby2js/filter/matchAll.rb', line 11

def self.reorder(filters)
  if \
    defined? Ruby2JS::Filter::Functions and
    filters.include? Ruby2JS::Filter::Functions
  then
    filters = filters.dup
    matchAll = filters.delete(Ruby2JS::Filter::MatchAll)
    filters.insert filters.index(Ruby2JS::Filter::Functions), matchAll
  else
    filters
  end
end

Instance Method Details

#on_block(node) ⇒ Object 



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# File 'lib/ruby2js/filter/matchAll.rb', line 24

def on_block(node)
  return super if es2020

  # only process each/forEach blocks
  call = node.children.first
  return super unless
    [:each, :forEach].include? call.children[1] and
    call.children.first.type == :send and
    node.children[1].children.length == 1

  # only process matchAll requests with simple expressions
  call = call.children.first
  return super unless
    call.children[1] == :matchAll and
    call.children[2].type == :send and
    call.children[2].children.first == nil and
    call.children[2].children.length == 2

  process s(:while,
    s(:lvasgn, node.children[1].children[0].children[0],
      s(:send, call.children[2], :exec, call.children.first)),
    node.children[2])
end