module Filter

module MatchAll

include SEXP

# ensure matchAll is before Functions in the filter list

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

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

end

DEFAULTS.push MatchAll

end