Class: RedParse::RangeNode

Inherits:
RawOpNode show all
Defined in:
lib/redparse/node.rb,
lib/redparse/node.rb,
lib/redparse/ripper.rb,
lib/redparse/ReduceWithsFor_RedParse_1_9.rb,
lib/redparse/ReduceWithsFor_RedParse_1_8.rb

Constant Summary

Constants included from FlattenedIvars

FlattenedIvars::EXCLUDED_IVARS

Instance Attribute Summary

Attributes inherited from Node

#endline, #errors, #offset, #parent, #startline

Attributes included from Stackable::Meta

#boolean_identity_params, #identity_params

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from RawOpNode

create, #image, #raw_unparse

Methods inherited from ValueNode

#lvalue, #reducer_method

Methods inherited from Node

#+, #+@, #==, #[]=, #add_parent_links!, #args_rip, #begin_parsetree, #classic_inspect, create, #data, #deep_copy, #delete_extraneous_ivars!, #delete_linenums!, #depthwalk, #depthwalk_nodes, #error?, #evalable_inspect, #fixup_multiple_assignments!, #fixup_rescue_assignments!, #force_stmt_list_rip, #image, #initialize_ivars, inline_symbols, #inspect, #lhs_unparse, #linerange, #lvalue, #lvars_defined_in, #merge_replacement_session, namelist, #negate, #original_brackets_assign, param_names, #parsetrees, #pretty_print, #prohibit_fixup, #replace_ivars_and_self, #replace_value, #rescue_parsetree, #rfind, #rfind_all, #rgrep, #rip_and_rescues, #rip_explode!, #short_inspect, #stmts_rip, #to_parsetree, #to_parsetree_and_warnings, #to_ruby, #to_s, #unary, #walk, #xform_tree!

Methods included from Stackable::Meta

#build_exemplars, #enumerate_exemplars, #identity_param

Methods included from FlattenedIvars

#flattened_ivars, #flattened_ivars_equal?

Methods included from Stackable

#identity_name

Constructor Details

#initialize(*args) ⇒ RangeNode

Returns a new instance of RangeNode.



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# File 'lib/redparse/node.rb', line 1695

def initialize(*args)
  options=Hash===args.last ? args.pop : {}
  if args.size==2
    left,right=*args
    op=".."
  else
    left,op,right=*args
    op=op.ident if op.respond_to? :ident
  end
  @exclude_end=!!op[2]
  @as_flow_control=false
  super(left,op,right,options)
end

Class Method Details

.[](*list) ⇒ Object

def self.[] *list

  result=RawOpNode[*list]
  result.extend RangeNode
  return result
end



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# File 'lib/redparse/node.rb', line 1720

def self.[] *list
  new(*list)
end

Instance Method Details

#begin ⇒ Object 



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# File 'lib/redparse/node.rb', line 1708

def begin; first end

#end ⇒ Object 



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# File 'lib/redparse/node.rb', line 1709

def end; last end

#exclude_end? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/redparse/node.rb', line 1712

def exclude_end?; @exclude_end end

#left ⇒ Object 



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# File 'lib/redparse/node.rb', line 1710

def left; first end

#parsetree(o) ⇒ Object 



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# File 'lib/redparse/node.rb', line 1724

def parsetree(o)
  first=first().parsetree(o)
  last=last().parsetree(o)
  if @as_flow_control
    if :lit==first.first and Integer===first.last 
      first=[:call, [:lit, first.last], :==, [:array, [:gvar, :$.]]]
    elsif :lit==first.first && Regexp===first.last or 
          :dregx==first.first || :dregx_once==first.first
      first=[:match, first]
    end

    if :lit==last.first and Integer===last.last
      last=[:call, [:lit, last.last], :==, [:array, [:gvar, :$.]]]
    elsif :lit==last.first && Regexp===last.last or 
          :dregx==last.first || :dregx_once==last.first
      last=[:match, last]
    end

    tag="flip"
  else
    if :lit==first.first and :lit==last.first and
       Fixnum===first.last and Fixnum===last.last and
       LiteralNode===first() and LiteralNode===last()
      return [:lit, Range.new(first.last,last.last,@exclude_end)]
    end
    tag="dot"
  end
  count= @exclude_end ? ?3 : ?2
  tag << count
  [tag.to_sym, first, last]
end

#reducer_ident ⇒ Object 



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# File 'lib/redparse/ReduceWithsFor_RedParse_1_9.rb', line 17600

def reducer_ident
  :RangeNode
end

#right ⇒ Object 



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# File 'lib/redparse/node.rb', line 1711

def right; last end

#rip(p) ⇒ Object 



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# File 'lib/redparse/ripper.rb', line 372

def rip p
  dots= exclude_end? ? :on_dot3 : :on_dot2
  p.send dots, left.rip(p), right.rip(p)
end

#special_conditions! ⇒ Object 



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# File 'lib/redparse/node.rb', line 1756

def special_conditions!
  @as_flow_control=true
end

#unparse(o = default_unparse_options) ⇒ Object 



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# File 'lib/redparse/node.rb', line 1760

def unparse(o=default_unparse_options)
  result=left.unparse(o)+'..'
  result+='.' if exclude_end?
  result << right.unparse(o)
  return result      
end