Class: RubyParserStuff::Environment

Inherits:

Object

• Object
• RubyParserStuff::Environment

show all

Defined in:

lib/ruby_parser/ruby_parser_extras.rb

Instance Attribute Summary (collapse)

• - (Object) dyn readonly

  Returns the value of attribute dyn.

• - (Object) env readonly

  Returns the value of attribute env.

Instance Method Summary (collapse)

• - (Object) [](k)
• - (Object) []=(k, v)
• - (Object) all
• - (Object) current
• - (Object) dynamic
• - (Boolean) dynamic?
• - (Object) extend(dyn = false)
• - (Environment) initialize(dyn = false) constructor

  A new instance of Environment.

• - (Object) reset
• - (Object) unextend
• - (Object) use(id)
• - (Boolean) used?(id)

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 958

def initialize dyn = false
  @dyn = []
  @env = []
  @use = []
  self.reset
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 923

def dyn
  @dyn
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 923

def env
  @env
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 925

def [] k
  self.all[k]
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 929

def []= k, v
  raise "no" if v == true
  self.current[k] = v
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 934

def all
  idx = @dyn.index(false) || 0
  @env[0..idx].reverse.inject { |env, scope| env.merge scope }
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 939

def current
  @env.first
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 943

def dynamic
  idx = @dyn.index false
  @env[0...idx].reverse.inject { |env, scope| env.merge scope } || {}
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 948

def dynamic?
  @dyn[0] != false
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 952

def extend dyn = false
  @dyn.unshift dyn
  @env.unshift({})
  @use.unshift({})
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 965

def reset
  @dyn.clear
  @env.clear
  @use.clear
  self.extend
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 972

def unextend
  @dyn.shift
  @env.shift
  @use.shift
  raise "You went too far unextending env" if @env.empty?
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 979

def use id
  @env.each_with_index do |env, i|
    if env[id] then
      @use[i][id] = true
    end
  end
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 987

def used? id
  idx = @dyn.index false # REFACTOR
  u = @use[0...idx].reverse.inject { |env, scope| env.merge scope } || {}
  u[id]
end