Class: RedParse::RescueNode

Inherits:
Node
  • Object
show all
Defined in:
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

Instance Method Summary collapse

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, #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(rescuehdr, action, semi) ⇒ RescueNode

Returns a new instance of RescueNode.



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# File 'lib/redparse/node.rb', line 5227

def initialize(rescuehdr,action,semi)
  @offset=rescuehdr.offset
  exlist=rescuehdr.exceptions||[]
  exlist=[exlist] unless exlist.class==Array
  fail unless exlist.class==Array
  exlist.extend ListInNode
  super(exlist,rescuehdr.varname,action)
end

Instance Method Details

#image ⇒ Object 



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# File 'lib/redparse/node.rb', line 5274

def image; "(rescue)" end

#parsetree(o) ⇒ Object 



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# File 'lib/redparse/node.rb', line 5243

def parsetree(o)
  result=[:resbody, nil]
  fail unless exceptions.class==Array
  ex=#if Node===exceptions; [exceptions.rescue_parsetree(o)] 
     #elsif exceptions
       exceptions.map{|exc| exc.rescue_parsetree(o)} 
     #end
  if !ex or ex.empty? #do nothing
  elsif ex.last.first!=:splat
    result[1]= [:array, *ex]
  elsif ex.size==1
    result[1]= ex.first
  else
    result[1]= [:argscat, ex[0...-1].unshift(:array), ex.last[1]]
  end
  VarNode===varname and offset=varname.offset
  action=if varname
    SequenceNode.new(
      AssignNode.new( 
        varname, 
        KeywordToken.new("=",offset),
        VarNode.new(VarNameToken.new("$!",offset))
      ),nil,action()
    )
  else
    action()
  end
  result.push action.parsetree(o) if action
  result
end

#reducer_ident ⇒ Object 



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# File 'lib/redparse/ReduceWithsFor_RedParse_1_9.rb', line 17240

def reducer_ident
  :RescueNode
end

#reducer_method(stack) ⇒ Object 



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# File 'lib/redparse/ReduceWithsFor_RedParse_1_9.rb', line 17237

def reducer_method(stack)
  :reduce_with_tos_RescueNode
end

#rip(p) ⇒ Object 



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# File 'lib/redparse/ripper.rb', line 324

def rip p
  p.on_rescue( 
    exceptions.empty??nil:exceptions.map{|ex| ex.rip(p)}, 
    name&&p.on_var_field(p.on_ident(name.name)), 
    force_stmt_list_rip(action,p)
  )
end

#unparse(o = default_unparse_options) ⇒ Object 



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# File 'lib/redparse/node.rb', line 5237

def unparse o=default_unparse_options
  xx=exceptions.map{|exc| exc.unparse o}.join(',')
  unparse_nl(self,o)+
  "rescue #{xx} #{varname&&'=> '+varname.lhs_unparse(o)}#{unparse_nl(action||self,o)}#{action&&action.unparse(o)}"
end