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annotate src/nabble/naml/compiler/Chunk.java @ 0:7ecd1a4ef557

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 21 Mar 2019 19:15:52 -0600
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1 package nabble.naml.compiler;
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3 import fschmidt.util.java.Interner;
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6 interface Chunk {
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7 public void run(IPrintWriter out,RunState runState);
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8 public boolean hasOutput();
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9 public Chunk intern();
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10
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11 static final Interner<Chunk> interner = new Interner<Chunk>();
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13 static final Chunk NULL = new Chunk() {
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14
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15 public void run(IPrintWriter out,RunState runState) {
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16 out.print((String)null);
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17 }
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19 public boolean hasOutput() {
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20 return true;
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21 }
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22
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23 public String toString() {
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24 return "nullChunk";
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25 }
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27 @Override public Chunk intern() {
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28 return this;
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29 }
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30 };
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31 }