Class: IDL::RubyServantWriter

Inherits:
RubyWriterBase show all
Defined in:
lib/ridlbe/ruby/walker.rb

Overview

RubyStubWriter

Instance Method Summary collapse

Methods inherited from RubyWriterBase

#indent, #nest, #print, #printi, #printiln, #println, #visit_nodes

Constructor Details

#initialize(output = STDOUT, params = {}, indent = ' ') ⇒ RubyServantWriter

Returns a new instance of RubyServantWriter.



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# File 'lib/ridlbe/ruby/walker.rb', line 1120

def initialize(output = STDOUT, params = {}, indent = '  ')
  super
  @stub_root = '::'
end

Instance Method Details

#declare_interface(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1191

def declare_interface(node)
  printiln("class #{node.rubyname} < PortableServer::Servant; end  ## servant forward")
end

#declare_struct(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1569

def declare_struct(node); end

#declare_union(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1579

def declare_union(node); end

#declare_valuetype(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1245

def declare_valuetype(node); end

#enter_exception(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1575

def enter_exception(node); end

#enter_include(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1167

def enter_include(node)
  printiln('## include')
  printiln("CORBA.implement('#{node.filename}', {}, CORBA::IDL::SERVANT_INTF) {")
  println
end

#enter_interface(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1195

def enter_interface(node)
  unless node.is_local?
    println
    printiln("class #{node.rubyname} < PortableServer::Servant ## servant")
    println
    @nest += 1

    printiln('module Intf')
    @nest += 1
    printiln(format("Id = '%s'.freeze", node.repository_id))
    printi('Ids = [ Id')
    if node.is_abstract?
      print(", 'IDL:omg.org/CORBA/AbstractBase:1.0'")
    end
    println(' ]')
    printiln('Operations = {}')
    println
  end
end

#enter_module(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1179

def enter_module(node)
  printiln('module ' + node.rubyname)
  println
  @nest += 1
end

#enter_struct(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1571

def enter_struct(node); end

#enter_union(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1581

def enter_union(node); end

#enter_valuetype(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1247

def enter_valuetype(node)
  println
  printiln("class #{node.rubyname} < PortableServer::Servant ## servant")
  @nest += 1
  printiln('## valuetype interface')
  printiln("include #{@stub_root}#{node.scoped_rubyname}")
  println
  printiln('## object interfaces')
  node.interfaces.each do |intf|
    # printiln("include #{@stub_root}#{intf.scoped_rubyname}")
    printiln("include #{intf.scoped_rubyname}")
  end
end

#expression_to_s(exp) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1489

def expression_to_s(exp)
  case exp
  when Expression::Value
    value_to_s(exp)
  when Expression::Operation
    operation_to_s(exp)
  when Expression::ScopedName
    @stub_root + exp.node.scoped_rubyname
  else
    raise "unknown expression type: #{exp.class.name}"
  end
end

#get_arg_type(_idl_argtype) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1478

def get_arg_type(_idl_argtype)
  case _idl_argtype
  when IDL::AST::Parameter::IN
    'CORBA::ARG_IN'
  when IDL::AST::Parameter::OUT
    'CORBA::ARG_OUT'
  else
    'CORBA::ARG_INOUT'
  end
end

#get_typecode(_type) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1419

def get_typecode(_type)
  case _type
  when Type::Octet,
       Type::UShort, Type::Short,
       Type::ULong, Type::Long,
       Type::ULongLong, Type::LongLong,
       Type::Boolean, Type::Char, Type::WChar,
       Type::Float, Type::Double, Type::LongDouble,
       Type::Void, Type::Any
    s = _type.class.name.split('::') # IDL::Type::Octet -> [IDL, Type, Octet]
    s = s[s.length - 1]
    s.downcase!
    format('CORBA._tc_%s', s)

  when Type::Object
    'CORBA._tc_Object'

  when Type::String
    if not _type.length.nil?
      format('CORBA::TypeCode::String.new(%d)', _type.length)
    else
      'CORBA._tc_string'
    end

  when Type::WString
    if not _type.length.nil?
      format('CORBA::TypeCode::WString.new(%d)', _type.length)
    else
      'CORBA._tc_wstring'
    end

  when Type::ScopedName
    @stub_root + _type.node.scoped_rubyname + '._tc'

  when Type::Array
    sep = ''
    tc = 'CORBA::TypeCode::Array.new(' +
        get_typecode(_type.basetype) + ', '
    _type.sizes.each do |sz|
      tc += "#{sep}#{sz.to_s}"
      sep = ', '
    end
    tc + ')'

  when Type::Sequence
    if _type.is_recursive?
      "CORBA::TypeCode::Sequence.new(CORBA::TypeCode::Recursive.new('#{_type.basetype.resolved_type.node.repository_id}'))"
    else
      'CORBA::TypeCode::Sequence.new(' +
            get_typecode(_type.basetype) +
            if not _type.length.nil? then format(', %d)', _type.length) else ')' end +
            '.freeze'
    end

  else
    raise "invalid type for (un)marshalling: #{_type.typename}"
  end
end

#leave_exception(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1577

def leave_exception(node); end

#leave_include(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1173

def leave_include(node)
  println
  printiln("} ## end of include '#{node.filename}'")
  println
end

#leave_interface(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1215

def leave_interface(node)
  unless node.is_local?
    name = node.rubyname

    @nest -= 1
    printiln('end #of Intf')

    println
    printiln('Id = Intf::Id')
    println

    if node.bases.size > 0
      node.bases.each do |n|
        printiln("include_interface(#{n.scoped_rubyname}::Intf)")
      end
    else
      printiln('include_interface(PortableServer::Servant::Intf)')
    end
    println

    printiln('include Intf')
    println

    printiln("def _this; #{@stub_root}#{node.scoped_rubyname}._narrow(super); end")

    @nest -= 1
    printiln("end #of servant #{name}")
  end
end

#leave_module(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1185

def leave_module(node)
  @nest -= 1
  printiln("end #of module #{node.rubyname}")
  println
end

#leave_struct(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1573

def leave_struct(node); end

#leave_union(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1583

def leave_union(node); end

#leave_valuetype(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1261

def leave_valuetype(node)
  @nest -= 1
  printiln("end #of servant #{node.rubyname}")
end

#operation_to_s(exp) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1533

def operation_to_s(exp)
  s = nil
  op = exp.operands
  case exp
  when Expression::UnaryPlus
    s = expression_to_s(op[0])
  when Expression::UnaryMinus
    s = '-' + expression_to_s(op[0])
  when Expression::UnaryNot
    s = '~' + expression_to_s(op[0])
  when Expression::Xor
    s = expression_to_s(op[0]) + ' ^ ' + expression_to_s(op[1])
  when Expression::Or
    s = expression_to_s(op[0]) + ' | ' + expression_to_s(op[1])
  when Expression::And
    s = expression_to_s(op[0]) + ' & ' + expression_to_s(op[1])
  when Expression::LShift
    s = expression_to_s(op[0]) + ' << ' + expression_to_s(op[1])
  when Expression::RShift
    s = expression_to_s(op[0]) + ' >> ' + expression_to_s(op[1])
  when Expression::Add
    s = expression_to_s(op[0]) + ' + ' + expression_to_s(op[1])
  when Expression::Minus
    s = expression_to_s(op[0]) + ' - ' + expression_to_s(op[1])
  when Expression::Mult
    s = expression_to_s(op[0]) + ' * ' + expression_to_s(op[1])
  when Expression::Div
    s = expression_to_s(op[0]) + ' / ' + expression_to_s(op[1])
  when Expression::Mod
    s = expression_to_s(op[0]) + ' % ' + expression_to_s(op[1])
  else
    raise "unknown operation: #{exp.type.name}"
  end
  '(' + s + ')'
end

#post_visit(parser) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1152

def post_visit(parser)
  idleval = @params[:idl_eval] || false
  unless idleval
    printiln("} ## end of '#{@params[:idlfile]}'")
  end
  @nest -= 1
  printiln('end #of module POA')
  println('# -*- END -*-')
end

#pre_visit(parser) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1125

def pre_visit(parser)
  print(
%Q{# -*- Ruby -*-
#
# ****  Code generated by the R2CORBA IDL Compiler ****
# R2CORBA has been developed by:
#        Remedy IT Expertise BV
#        The Netherlands
#        https://www.remedy.nl
#
})
  idleval = @params[:idl_eval] || false
  println("require 'corba/poa.rb'") if @params[:libinit]
  unless @params[:expand_includes]
    println("require '" + @params[:idlfile].sub(/\.[^\.]*$/, @params[:stub_pfx]) + "'")
  end
  println
  printiln('module POA')
  @nest += 1
  unless idleval
    printiln("CORBA.implement('#{@params[:idlfile]}', {}, CORBA::IDL::SERVANT_INTF) {")
    println
  end
  ## register explicit (*not* IDL derived) rootnamespace used for client stubs
  @stub_root = "#{parser.root_namespace.rubyname}::" unless parser.root_namespace.nil?
end

#value_to_s(exp) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1502

def value_to_s(exp)
  s = nil
  v = exp.value
  case exp.idltype
  when Type::Void
    s = 'nil'
  when Type::Char
    s = "'#{v.chr}'"
  when Type::Integer,
    Type::Boolean,
    Type::Octet,
    Type::Float,
    Type::WChar
    s = v.to_s
  when Type::Enum
    s = v.to_s
  when Type::String
    s = "'#{v.to_s}'"
  when Type::WString
    s = "[#{v.join(',')}]"
  # when Type::Fixed
  # when Type::Any
  # when Type::Object
  when Type::ScopedName
    s = value_to_s(Expression::Value.new(exp.idltype.node.idltype, v))
  else
    raise "#{exp.typename}'s not been supported yet."
  end
  s
end

#visit_attribute(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1346

def visit_attribute(node)
  _intf = node.enclosure

  ## do nothing for valuetypes or local interfaces
  return nil if _intf.is_a?(IDL::AST::Valuetype) || _intf.is_local?

  printiln("Operations.store(:_get_#{node.name}, {")
  nest {
    nest {
      printiln(":result_type => #{get_typecode(node.idltype)},")
      if node.get_raises.size > 0
        printi(':exc_list => [')
        pfx = ''
        nest {
          node.get_raises.each { |ex|
            println(pfx)
            pfx = ','
            printi(get_typecode(ex))
          }
          println('],')
        }
      end
      printiln(":op_sym => :#{node.rubyname} })")
    }
  }
  println

  printiln("def #{node.rubyname}()")
  nest {
    printiln('raise ::CORBA::NO_IMPLEMENT.new(')
    printiln("         'unimplemented servant attribute get',")
    printiln('         1, ::CORBA::COMPLETED_NO)')
  }
  printiln("end #of attribute get_#{node.name}")
  println

  unless node.readonly
    printiln("Operations.store(:_set_#{node.name}, {")
    nest {
      nest {
        printiln(':arg_list => [')
        nest {
          printiln("['val', CORBA::ARG_IN, #{get_typecode(node.idltype)}]],");
        }
        printiln(':result_type => CORBA._tc_void,')
        if node.set_raises.size > 0
          printi(':exc_list => [')
          pfx = ''
          nest {
            node.set_raises.each { |ex|
              println(pfx)
              pfx = ','
              printi(get_typecode(ex))
            }
            println('],')
          }
        end
        printiln(":op_sym => :#{node.rubyname}= })")
      }
    }
    println

    printiln("def #{node.rubyname}=(val)")
    nest {
      printiln('raise ::CORBA::NO_IMPLEMENT.new(')
      printiln("         'unimplemented servant attribute set',")
      printiln('         1, ::CORBA::COMPLETED_NO)')
    }
    printiln("end #of attribute set_#{node.name}")
    println
  end
end

#visit_const(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1268

def visit_const(node); end

#visit_enum(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1585

def visit_enum(node); end

#visit_enumerator(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1587

def visit_enumerator(node); end

#visit_include(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1162

def visit_include(node)
  printiln(format("require '%s'", node.filename.sub(/\.[^\.]*$/, @params[:srv_pfx])))
  println
end

#visit_operation(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1270

def visit_operation(node)
  _parm = node.params
  _in = node.in_params
  _out = node.out_params
  _intf = node.enclosure

  ## do nothing for valuetypes or local interfaces
  return nil if _intf.is_a?(IDL::AST::Valuetype) || _intf.is_local?

  printi("Operations.store(:#{node.name}, {")
  newln = ''
  if _parm.size > 0
    println(newln)
    nest do
      printi(':arg_list => [')
      nest {
        pfx = ''
        _parm.each do |p|
          println(pfx)
          printi("['#{p.rubyname}', #{get_arg_type(p.attribute)}, ");
          print(get_typecode(p.idltype))
          print(']')
          pfx = ','
        end
        print(']')
      }
    end
    newln = ','
  end

  unless node.oneway
    println(newln)
    nest { printi(":result_type => #{get_typecode(node.idltype)}") }
    newln = ','
  end

  if node.raises.size > 0
    println(newln)
    nest {
      printi(':exc_list => [')
      pfx = ''
      nest {
        node.raises.each { |ex|
          println(pfx)
          pfx = ','
          printi(get_typecode(ex))
        }
        print(']')
      }
    }
    newln = ','
  end

  if node.rubyname != node.name
    println(newln)
    nest { printi(":op_sym => :#{node.rubyname}") }
  end
  println('})')
  println

  printi("def #{node.rubyname}(")
  print(_in.collect{ |p| p.rubyname }.join(', '))
  if node.oneway
    println(')    # oneway')
  else
    println(')')
  end
  nest {
    printiln('raise ::CORBA::NO_IMPLEMENT.new(')
    printiln("         'unimplemented servant operation',")
    printiln('         1, ::CORBA::COMPLETED_NO)')
  }
  printiln('end')
  println
end

#visit_typedef(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1589

def visit_typedef(node); end

#visit_valuebox(node) ⇒ Object 



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# File 'lib/ridlbe/ruby/walker.rb', line 1266

def visit_valuebox(node); end