58 lines
1.9 KiB
Java
58 lines
1.9 KiB
Java
/**
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* Serene (simple) - A PoC lisp to collect data on Serenes concepts
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* Copyright (C) 2019-2020 Sameer Rahmani <lxsameer@gnu.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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package serene.simple;
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public class SpecialForm extends Node {
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private static final SymbolNode DEF = new SymbolNode("def");
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private static final SymbolNode FN = new SymbolNode("fn");
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private static final SymbolNode IF = new SymbolNode("if");
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private static final SymbolNode QUOTE = new SymbolNode("quote");
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public ListNode<Node> node;
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public SpecialForm() {}
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public SpecialForm(ListNode<Node> node) {
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this.node = node;
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}
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public static Node check(ListNode<Node> l) throws SereneException {
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if (l == ListNode.EMPTY) {
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return l;
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} else if (l.first().equals(DEF)) {
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return new DefSpecialForm(l);
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} else if (l.first().equals(FN)) {
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return new FnSpecialForm(l);
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} else if (l.first().equals(IF)) {
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return new IfSpecialForm(l);
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} else if (l.first().equals(QUOTE)) {
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return new QuoteSpecialForm(l);
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}
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return l;
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}
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@Override
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public Object eval(BaseScope scope) throws SereneException {
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throw new SereneException("Can't use SpecialForm directly");
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}
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}
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