56 lines
1.5 KiB
Ruby
56 lines
1.5 KiB
Ruby
module RxFile
|
|
# A HashNode is a Node for a Hash. See Node for when and how nodes are used in RxFile.
|
|
# A HashNode has a list of children that hold the key/value node representations for
|
|
# the hashes keys and values.
|
|
|
|
class HashNode < Node
|
|
def initialize ref
|
|
super(ref)
|
|
@children = []
|
|
end
|
|
|
|
def add key , val
|
|
@children << [key,val]
|
|
end
|
|
|
|
def is_simple?
|
|
return false if(@children.length > 7 )
|
|
@children.each do |k,v|
|
|
return false unless k.is_simple?
|
|
return false unless v.is_simple?
|
|
end
|
|
true
|
|
end
|
|
|
|
# This defines the short output which is basically what you would write in ruby
|
|
# ie { key1 => value1 , ... }
|
|
# The short is used for 7 or less SimpleNodes
|
|
def short_out(io,level)
|
|
io.write("{")
|
|
@children.each_with_index do |child , i|
|
|
key , val = child
|
|
key.out(io , level + 1)
|
|
io.write " => "
|
|
val.out(io , level + 1)
|
|
io.write ", " unless (i+1) == @children.length
|
|
end
|
|
io.write("}")
|
|
end
|
|
|
|
# The long output is like an array of associations.
|
|
# Arrays start with the minus on each line "-"
|
|
# and each line has the association key => value, same as used for the {} syntax
|
|
def long_out io , level
|
|
indent = " " * level
|
|
@children.each_with_index do |child , i|
|
|
key , val = child
|
|
io.write "\n#{indent}" unless i == 0
|
|
io.write "- "
|
|
key.out(io , level + 1)
|
|
io.write " => "
|
|
val.out(io , level + 1)
|
|
end
|
|
end
|
|
end
|
|
end
|