MODULE M3CTypeSpecS;
*************************************************************************
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
IMPORT M3AST, M3AST_AS, M3Context;
IMPORT M3AST_AS_F, M3AST_SM_F, M3AST_TM_F;
IMPORT SeqM3AST_AS_TYPE_SPEC;
PROCEDURE Set(an: M3AST.NODE; unit: M3AST_AS.UNIT_WITH_BODY) RAISES {}=
BEGIN
IF NOT ISTYPE(an, M3AST_AS.TYPE_SPEC) THEN RETURN END;
TYPECASE an OF
| M3AST_AS.Ref_type(rt) => (* no untraced ref types *)
IF rt.as_trace_mode # NIL THEN RETURN END;
| M3AST_AS.Object_type, M3AST_AS.Opaque_type =>
(* Ok *)
ELSE
RETURN
END; (* case *)
SeqM3AST_AS_TYPE_SPEC.AddRear(unit.sm_type_spec_s, an)
END Set;
PROCEDURE TCTag(ts: M3AST_AS.TYPE_SPEC): INTEGER RAISES {}=
BEGIN
VAR
unit_id := TCUnit_id(ts);
iter := SeqM3AST_AS_TYPE_SPEC.NewIter(
NARROW(unit_id.sm_spec, M3AST_AS.UNIT_WITH_BODY).sm_type_spec_s);
tag := 1;
tts: M3AST_AS.TYPE_SPEC;
BEGIN
WHILE SeqM3AST_AS_TYPE_SPEC.Next(iter, tts) DO
TYPECASE ts OF
| M3AST_AS.RefAny_type, M3AST_AS.Root_type, M3AST_AS.Null_type =>
IF TYPECODE(tts) = TYPECODE(ts) THEN RETURN tag END;
ELSE
IF ts = tts THEN RETURN tag END;
END;
INC(tag);
END; (* while *)
END;
RETURN 0; (* bound to cause an error *)
END TCTag;
PROCEDURE TCUnit_id(ts: M3AST_AS.TYPE_SPEC): M3AST_AS.UNIT_ID RAISES {}=
BEGIN
TYPECASE ts OF
| M3AST_AS.RefAny_type, M3AST_AS.Root_type, M3AST_AS.Null_type =>
RETURN M3Context.Standard().as_root.as_id;
ELSE RETURN ts.tmp_unit_id.sm_spec.as_id;
END;
END TCUnit_id;
BEGIN
END M3CTypeSpecS.