Class: RubyParserStuff::StackState

Inherits:

Object

• Object
• RubyParserStuff::StackState

show all

Defined in:

lib/ruby_parser/ruby_parser_extras.rb

Instance Attribute Summary (collapse)

• - (Object) stack readonly

  Returns the value of attribute stack.

Instance Method Summary (collapse)

• - (StackState) initialize(name) constructor

  A new instance of StackState.

• - (Object) inspect
• - (Object) is_in_state
• - (Object) lexpop
• - (Object) pop
• - (Object) push(val)

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 997

def initialize(name)
  @name = name
  @stack = [false]
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 995

def stack
  @stack
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 1002

def inspect
  "StackState(#{@name}, #{@stack.inspect})"
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 1006

def is_in_state
  @stack.last
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 1010

def lexpop
  raise if @stack.size == 0
  a = @stack.pop
  b = @stack.pop
  @stack.push(a || b)
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 1017

def pop
  r = @stack.pop
  @stack.push false if @stack.size == 0
  r
end

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# File 'lib/ruby_parser/ruby_parser_extras.rb', line 1023

def push val
  @stack.push val
end