1 ////////////////////////////////////////////////////////////////////////////////
2 // MillScript: an Open Spice interpreter and batch website creation tool
3 // Copyright (C) 2001-2004 Open World Ltd
4 // Copyright (C) 2005 Kevin Rogers
5 //
6 // This file is part of MillScript.
7 //
8 // MillScript is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU General Public License as published by the Free
10 // Software Foundation; either version 2 of the License, or (at your option)
11 // any later version.
12 //
13 // MillScript is distributed in the hope that it will be useful, but WITHOUT
14 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 // more details.
17 //
18 // You should have received a copy of the GNU General Public License along with
19 // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
20 // Place, Suite 330, Boston, MA 02111-1307 USA
21 ////////////////////////////////////////////////////////////////////////////////
22 package org.millscript.millscript.expr;
23
24 import org.millscript.millscript.alert.Alerts;
25 import org.millscript.millscript.vm.CompilerState;
26
27 /**
28 * This class implements a package expression.
29 *
30 * @see org.millscript.millscript.syntax.PackageSyntax
31 */
32 public final class PackageExpr extends DirectiveExpr {
33
34 /**
35 * The package name.
36 */
37 private final String fqn;
38
39 /**
40 * Creates a new package expression for the specified name.
41 *
42 * @param b a String describing the package name
43 */
44 public PackageExpr( final String b ) {
45 fqn = b;
46 }
47
48 /**
49 * Returns the full package name for this expression.
50 *
51 * @return this expressions full package name
52 */
53 public String getFullName() {
54 return fqn;
55 }
56
57 /**
58 * @see org.millscript.millscript.expr.Expr#resolve(org.millscript.millscript.vm.CompilerState)
59 */
60 @Override
61 public void resolve( final CompilerState state ) {
62 // We can't resolve a package expression, we shouldn't even get to this
63 // stage
64 throw(
65 Alerts.compile(
66 "Package not at top-level",
67 "Packages may only be introduced at top-level"
68 ).culprit( "package name", fqn ).mishap()
69 );
70 }
71
72 }