Class: RubyParserStuff::Environment

Inherits:

Object

• Object
• RubyParserStuff::Environment

Defined in:

lib/ruby_parser_extras.rb

Instance Attribute Summary

• #dyn ⇒ Object readonly

  Returns the value of attribute dyn.

• #env ⇒ Object readonly

  Returns the value of attribute env.

Instance Method Summary

• #[](k) ⇒ Object
• #[]=(k, v) ⇒ Object
• #all ⇒ Object
• #current ⇒ Object
• #extend(dyn = false) ⇒ Object
• #initialize(dyn = false) ⇒ Environment constructor

  A new instance of Environment.

• #reset ⇒ Object
• #unextend ⇒ Object

Constructor Details

#initialize(dyn = false) ⇒ Environment

Returns a new instance of Environment.

# File 'lib/ruby_parser_extras.rb', line 1548

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

Instance Attribute Details

#dyn ⇒ Object (readonly)

Returns the value of attribute dyn.

# File 'lib/ruby_parser_extras.rb', line 1523

def dyn
  @dyn
end

#env ⇒ Object (readonly)

Returns the value of attribute env.

# File 'lib/ruby_parser_extras.rb', line 1523

def env
  @env
end

Instance Method Details

#[](k) ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1525

def [] k
  self.all[k]
end

#[]=(k, v) ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1529

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

#all ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1534

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

#current ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1539

def current
  @env.first
end

#extend(dyn = false) ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1543

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

#reset ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1554

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

#unextend ⇒ Object

# File 'lib/ruby_parser_extras.rb', line 1560

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