File size: 1,332 Bytes
784ee2c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | #!/usr/bin/env ruby
require 'digest'
require_relative 'LEFNamedObject'
#
# Class to store LEF layer data
#
class LEFLayer < LEFNamedObject
#
# Initializer
#
def initialize(name, num, type=nil)
super(name)
@num = num
@type = type
end
#
# Sets the layer type
#
def set_type(layer_type)
@type = layer_type
end
#
# Sets the layer number (order of layer in the tech LEF, which implies
# layer stacking order
#
def get_number()
return @num
end
#
# Returns the layer type
#
def get_type()
return @type
end
#
# Writes the LEF statement snippet for the layer
#
def write_lef(out)
layer_name = get_name()
out.puts sprintf("LAYER %s", layer_name)
out.puts sprintf(" TYPE %s ;", get_type())
out.puts sprintf("END %s", layer_name)
out.puts
end
#
# Returns the SHA256 for the layer
#
# Layer number is skipped since the layer number could be different between
# tech LEF versions and we'd like to use this to compare across versions
#
def sha256()
if get_type.nil?
return Digest::SHA256.hexdigest(get_name())
end
return Digest::SHA256.hexdigest(get_name() + get_type())
end
end
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