/src/tools/semantics/code/instructions/liberty_call_instruction.e

  1-- This file is part of Liberty Eiffel.
  2--
  3-- Liberty Eiffel is free software: you can redistribute it and/or modify
  4-- it under the terms of the GNU General Public License as published by
  5-- the Free Software Foundation, version 3 of the License.
  6--
  7-- Liberty Eiffel is distributed in the hope that it will be useful,
  8-- but WITHOUT ANY WARRANTY; without even the implied warranty of
  9-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 10-- GNU General Public License for more details.
 11--
 12-- You should have received a copy of the GNU General Public License
 13-- along with Liberty Eiffel.  If not, see <http://www.gnu.org/licenses/>.
 14--
 15class LIBERTY_CALL_INSTRUCTION
 16
 17inherit
 18   LIBERTY_INSTRUCTION
 19   LIBERTY_CALL
 20
 21create {LIBERTY_BUILDER_TOOLS, LIBERTY_CALL_INSTRUCTION}
 22   make, implicit_current
 23
 24feature {ANY}
 25   target: LIBERTY_EXPRESSION
 26   entity: LIBERTY_FEATURE_ENTITY
 27
 28feature {LIBERTY_REACHABLE, LIBERTY_REACHABLE_COLLECTION_MARKER}
 29   mark_reachable_code (mark: INTEGER) is
 30      do
 31         if target /= Void then
 32            target.mark_reachable_code(mark)
 33         end
 34         entity.mark_reachable_code(mark)
 35         expressions_marker.mark_reachable_code(mark, actuals)
 36      end
 37
 38feature {}
 39   make (a_target: like target; a_entity: like entity; a_actuals: like actuals_list; a_position: like position) is
 40      require
 41         a_target /= Void
 42         a_entity /= Void
 43         a_actuals /= Void
 44         a_position /= Void
 45      do
 46         target := a_target
 47         entity := a_entity
 48         actuals_list := a_actuals
 49         position := a_position
 50         register_for_promotion
 51      ensure
 52         target = a_target or else {LIBERTY_CAST_EXPRESSION} ?:= target
 53         entity = a_entity
 54         actuals_list = a_actuals
 55         position = a_position
 56      end
 57
 58   implicit_current (a_entity: like entity; a_actuals: like actuals_list; a_position: like position) is
 59      require
 60         a_entity /= Void
 61         a_actuals /= Void
 62         a_position /= Void
 63      do
 64         entity := a_entity
 65         actuals_list := a_actuals
 66         position := a_position
 67      ensure
 68         is_implicit_current
 69         entity = a_entity
 70         actuals_list = a_actuals
 71         position = a_position
 72      end
 73
 74   actuals_list: COLLECTION[LIBERTY_EXPRESSION]
 75
 76   make_new (a_target: like target; a_entity: like entity; a_actuals: like actuals_list; a_position: like position): like Current is
 77      do
 78         if a_target = Void then
 79            create Result.implicit_current(a_entity, a_actuals, a_position)
 80         else
 81            create Result.make(a_target, a_entity, a_actuals, a_position)
 82         end
 83      end
 84
 85feature {LIBERTY_CALL_PROMOTION}
 86   set_entity (a_entity: like entity) is
 87      do
 88         entity := a_entity
 89      end
 90
 91   set_target (a_target: like target) is
 92      do
 93         target := a_target
 94      end
 95
 96feature {ANY}
 97   accept (v: VISITOR) is
 98      local
 99         v0: LIBERTY_CALL_INSTRUCTION_VISITOR
100      do
101         v0 ::= v
102         v0.visit_liberty_call_instruction(Current)
103      end
104
105end