31 lines
905 B
Java
31 lines
905 B
Java
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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private final ListNode node;
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public SpecialForm(ListNode node) {
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this.node = node;
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}
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public static Node check(ListNode l) {
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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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}
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