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Contents
module Hotcell class Expression < Hotcell::Node HANDLERS = { :PLUS => ->(value1, value2) { value1 + value2 }, :MINUS => ->(value1, value2) { value1 - value2 }, :UMINUS => ->(value) { -value }, :UPLUS => ->(value) { value }, :MULTIPLY => ->(value1, value2) { value1 * value2 }, :POWER => ->(value1, value2) { value1 ** value2 }, :DIVIDE => ->(value1, value2) { value1 / value2 }, :MODULO => ->(value1, value2) { value1 % value2 }, :AND => ->(value1, value2) { value1 && value2 }, :OR => ->(value1, value2) { value1 || value2 }, :NOT => ->(value) { !value }, :EQUAL => ->(value1, value2) { value1 == value2 }, :INEQUAL => ->(value1, value2) { value1 != value2 }, :GT => ->(value1, value2) { value1 > value2 }, :GTE => ->(value1, value2) { value1 >= value2 }, :LT => ->(value1, value2) { value1 < value2 }, :LTE => ->(value1, value2) { value1 <= value2 }, :RANGE => ->(value1, value2) { Range.new value1, value2 }, :ERANGE => ->(value1, value2) { Range.new value1, value2, true } } def optimize handler = HANDLERS[name] reducible = handler && children.none? { |child| child.is_a? Hotcell::Node } reducible ? handler.call(*children) : super end def process context, *values handler = HANDLERS[name] raise "Could not find handler for `#{name}`" unless handler handler.call *values end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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hotcell-0.2.0 | lib/hotcell/node/expression.rb |