MODULE M3CExternal;
*************************************************************************
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.
*************************************************************************
IMPORT M3AST, M3AST_AS, M3AST_PG;
IMPORT M3AST_AS_F, M3AST_SM_F, M3AST_PG_F;
IMPORT SeqM3AST_AS_Const_decl, SeqM3AST_AS_Exc_decl, SeqM3AST_AS_TYPE_DECL;
IMPORT M3ASTNext;
IMPORT M3Error;
PROCEDURE Set(an: M3AST.NODE; cu: M3AST_AS.Compilation_Unit) RAISES {}=
VAR
isModule: BOOLEAN;
unitExternal, external: M3AST_PG.External_NULL;
ed: M3AST_PG.EXTERNAL_DECL;
BEGIN
IF NOT M3AST_PG.IsA_EXTERNAL_DECL(an, ed) THEN RETURN END;
TYPECASE cu.as_root OF <*NOWARN*>
| M3AST_AS.Interface(interface) =>
isModule := FALSE;
unitExternal := interface.vEXTERNAL_DECL.pg_external;
| M3AST_AS.Module =>
isModule := TRUE;
unitExternal := NIL;
END;
external := ed.pg_external;
IF external # NIL THEN
IF isModule THEN
M3Error.Report(an, "EXTERNAL is not allowed in a module");
END; (* if *)
ELSE
external := unitExternal;
END; (* if *)
TYPECASE an OF <*NOWARN*>
| M3AST_AS.Interface(interface) =>
NARROW(interface.as_id, M3AST_AS.Interface_id).vEXTERNAL_ID.pg_external :=
external;
| M3AST_AS.Proc_decl(proc_decl) =>
proc_decl.as_id.vEXTERNAL_ID.pg_external := external;
| M3AST_AS.Var_decl_s(var_decl_s) =>
VAR
iter := M3ASTNext.NewIterVar(
var_decl_s.as_var_decl_s);
varId: M3AST_AS.Var_id;
BEGIN
WHILE M3ASTNext.Var(iter, varId) DO
varId.vEXTERNAL_ID.pg_external := external;
END; (* while *)
END;
| M3AST_AS.Const_decl_s(const_decl_s) =>
VAR
iter := SeqM3AST_AS_Const_decl.NewIter(
const_decl_s.as_const_decl_s);
constDecl: M3AST_AS.Const_decl;
BEGIN
WHILE SeqM3AST_AS_Const_decl.Next(iter, constDecl) DO
constDecl.as_id.vEXTERNAL_ID.pg_external := external;
END; (* while *)
END;
| M3AST_AS.Exc_decl_s(exc_decl_s) =>
VAR
iter := SeqM3AST_AS_Exc_decl.NewIter(
exc_decl_s.as_exc_decl_s);
excDecl: M3AST_AS.Exc_decl;
BEGIN
WHILE SeqM3AST_AS_Exc_decl.Next(iter, excDecl) DO
excDecl.as_id.vEXTERNAL_ID.pg_external := external;
END; (* while *)
END;
| M3AST_AS.Type_decl_s(type_decl_s) =>
VAR
iter := SeqM3AST_AS_TYPE_DECL.NewIter(
type_decl_s.as_type_decl_s);
typeDecl: M3AST_AS.TYPE_DECL;
BEGIN
WHILE SeqM3AST_AS_TYPE_DECL.Next(iter, typeDecl) DO
TYPECASE typeDecl OF <*NOWARN*>
| M3AST_AS.Concrete_decl(concDecl) =>
concDecl.as_id.vEXTERNAL_ID.pg_external := external;
| M3AST_AS.Subtype_decl(subtypeDecl) =>
subtypeDecl.as_id.vEXTERNAL_ID.pg_external := external;
END;
END; (* while *)
END;
END; (* case *)
END Set;
BEGIN
END M3CExternal.