class Rubic::Environment
Public Class Methods
new(outer=nil)
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# File lib/rubic/environment.rb, line 3 def initialize(outer=nil) @outer = outer @table = {} end
Public Instance Methods
assign(name, value)
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# File lib/rubic/environment.rb, line 22 def assign(name, value) if @table.key? name @table[name] = value elsif @outer @outer.assign(name, value) else raise Rubic::NameError, "undefined variable `#{name}'" end end
bind(params, args)
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# File lib/rubic/environment.rb, line 32 def bind(params, args) if params.size != args.size raise Rubic::ArgumentError, "wrong number of arguments (#{args.size} for #{params.size})" end params.each.with_index do |name, i| @table[name] = args[i] end end
defvar(name, value)
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# File lib/rubic/environment.rb, line 8 def defvar(name, value) @table[name] = value end
Also aliased as: []=
extend(klass)
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# File lib/rubic/environment.rb, line 42 def extend(klass) ext = klass.new klass.instance_methods(false).each do |mname| defvar(mname, ext.method(mname)) end end
refvar(name)
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# File lib/rubic/environment.rb, line 12 def refvar(name) if @table.key? name @table[name] elsif @outer @outer.refvar(name) else raise Rubic::NameError, "undefined variable `#{name}'" end end
Also aliased as: []