Critical Mass Modula-3: m3tk/src/sem/M3CTmpAtt.m3

m3tk/src/sem/M3CTmpAtt.m3

************************************************************************* Copyright (C) Olivetti 1989 All Rights reserved Use and copy of this software and preparation of derivative works based upon this software are permitted to any person, provided this same copyright notice and the following Olivetti warranty disclaimer are included in any copy of the software or any modification thereof or derivative work therefrom made by any person. This software is made available AS IS and Olivetti disclaims all warranties with respect to this software, whether expressed or implied under any law, including all implied warranties of merchantibility and fitness for any purpose. In no event shall Olivetti be liable for any damages whatsoever resulting from loss of use, data or profits or otherwise arising out of or in connection with the use or performance of this software. ************************************************************************* Copyright (C) 1991, Digital Equipment Corporation All rights reserved. See the file COPYRIGHT for a full description.

MODULE M3CTmpAtt EXPORTS M3CTmpAtt, M3ASTOp_SM;

IMPORT IntRefTbl;
IMPORT AST, M3AST_AS, M3ASTOp_SM;
IMPORT M3CId; (* to reveal an M3AST_LX.Symrep *)

IMPORT M3AST_AS_F, M3AST_TM_F;

IMPORT SeqM3AST_AS_Override, SeqM3AST_AS_Method;

IMPORT ASTWalk;

CONST
  TmpDefIdTableSize = 64;

<*INLINE*> PROCEDURE Set(n: AST.NODE; id: M3AST_AS.UNIT_ID)=
  BEGIN
    n.set_tmp(id);
  END Set;

<*INLINE*> PROCEDURE SetTmpUnitId(n: AST.NODE; id: M3AST_AS.UNIT_ID)=
  BEGIN
    n.set_tmp_unit_id(id);
  END SetTmpUnitId;

<*INLINE*> PROCEDURE DefId(
    defId: M3AST_AS.DEF_ID;
    unitId: M3AST_AS.UNIT_ID)
    RAISES {}=
  BEGIN
    defId.tmp_unit_id := unitId;
    defId.tmp_recursive := FALSE;
  END DefId;

<*INLINE*> PROCEDURE TypeSpec(
    ts: M3AST_AS.TYPE_SPEC;
    id: M3AST_AS.UNIT_ID)
    RAISES {}=
  BEGIN
    ts.tmp_unit_id := id;
  END TypeSpec;

TYPE
  Closure =
    ASTWalk.Closure OBJECT
      table: IntRefTbl.T;
    OVERRIDES
      callback := RecordId;
    END;

PROCEDURE RecordId(
    c: Closure;
    an: AST.NODE;
    <*UNUSED*> vm: ASTWalk.VisitMode)
    RAISES {}=
  BEGIN
    TYPECASE an OF
    | M3AST_AS.DEF_ID(defId) =>
        IF defId.lx_symrep # NIL THEN
          EVAL c.table.put(defId.lx_symrep.atom, defId);
        END; (* if *)
    | M3AST_AS.M3TYPE, M3AST_AS.EXP =>
        ASTWalk.IgnoreChildren(c);
    ELSE
    END;
  END RecordId;

PROCEDURE SetTmpDefIdTable(int: M3AST_AS.Interface) RAISES {}=
  <*FATAL ANY*>
  VAR
    c: Closure;
    t: IntRefTbl.T;
  BEGIN
    t := NEW(IntRefTbl.Default).init(TmpDefIdTableSize);
    int.tmp_def_id_table := t;
    c := NEW(Closure, table := t);
    ASTWalk.VisitNodes(int.as_block, c);
  END SetTmpDefIdTable;

PROCEDURE Set_tmp(an: M3ASTOp_SM.NODE; id: M3AST_AS.UNIT_ID) RAISES {} =
  VAR
    iter_m: SeqM3AST_AS_Method.Iter;
    iter_o: SeqM3AST_AS_Override.Iter;
    override: M3AST_AS.Override;
    method: M3AST_AS.Method;
  BEGIN
    TYPECASE an OF
    | M3AST_AS.Import_item(im) =>
        IF im.as_id # NIL THEN
          im.as_id.tmp_used_id := im.as_intf_id;
        END; (* if *)
    | M3AST_AS.Concrete_decl(concreteDecl) =>
        concreteDecl.as_id.tmp_type := concreteDecl.as_type;
    | M3AST_AS.Subtype_decl(subtypeDecl) =>
        subtypeDecl.as_id.tmp_type := subtypeDecl.as_type;
    | M3AST_AS.Exc_decl(excDecl) =>
        excDecl.as_id.tmp_type := excDecl.as_type;
    | M3AST_AS.Object_type(objectType) =>
        iter_m := SeqM3AST_AS_Method.NewIter(objectType.as_method_s);
        WHILE SeqM3AST_AS_Method.Next(iter_m, method) DO
          method.tmp_type := objectType;
        END; (* while *)
        iter_o := SeqM3AST_AS_Override.NewIter(objectType.as_override_s);
        WHILE SeqM3AST_AS_Override.Next(iter_o, override) DO
          override.tmp_type := objectType;
        END; (* while *)
        TypeSpec(objectType, id);
    | M3AST_AS.Opaque_type(opaqueType) =>
        opaqueType.tmp_rev_type_spec := NIL;
        TypeSpec(opaqueType, id);
    | M3AST_AS.Interface(interface) =>
        SetTmpDefIdTable(interface);
    | M3AST_AS.DEF_ID(defId) =>
        DefId(defId, id);
    | M3AST_AS.TYPE_SPEC(typeSpec) =>
        TypeSpec(typeSpec, id);
    ELSE
    END;
  END Set_tmp;

PROCEDURE Set_tmp_unit_id(an: M3ASTOp_SM.NODE; id: M3AST_AS.UNIT_ID) RAISES {}=
  BEGIN
    TYPECASE an OF
    | M3AST_AS.DEF_ID(defId) =>
        DefId(defId, id);
    | M3AST_AS.TYPE_SPEC(typeSpec) =>
        TypeSpec(typeSpec, id);
    ELSE
    END;
  END Set_tmp_unit_id;

BEGIN
END M3CTmpAtt.