Class: Parser::MaxNumparamStack

Inherits:
Object
  • Object
show all
Defined in:
lib/parser/max_numparam_stack.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MaxNumparamStack

Returns a new instance of MaxNumparamStack.



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# File 'lib/parser/max_numparam_stack.rb', line 8

def initialize
  @stack = []
end

Instance Attribute Details

#stack ⇒ Object (readonly) 



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# File 'lib/parser/max_numparam_stack.rb', line 6

def stack
  @stack
end

Instance Method Details

#has_numparams? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/max_numparam_stack.rb', line 20

def has_numparams?
  top && top > 0
end

#has_ordinary_params! ⇒ Object 



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# File 'lib/parser/max_numparam_stack.rb', line 12

def has_ordinary_params!
  set(-1)
end

#has_ordinary_params? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/max_numparam_stack.rb', line 16

def has_ordinary_params?
  top < 0
end

#pop ⇒ Object 



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# File 'lib/parser/max_numparam_stack.rb', line 36

def pop
  @stack.pop
end

#push ⇒ Object 



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# File 'lib/parser/max_numparam_stack.rb', line 32

def push
  @stack.push(0)
end

#register(numparam) ⇒ Object 



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# File 'lib/parser/max_numparam_stack.rb', line 24

def register(numparam)
  set( [top, numparam].max )
end

#top ⇒ Object 



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# File 'lib/parser/max_numparam_stack.rb', line 28

def top
  @stack.last
end