Mercurial Hosting > luan
annotate src/luan/interp/LuaCompiler.java @ 31:5cf15507d77e
separate interpreter from interface
git-svn-id: https://luan-java.googlecode.com/svn/trunk@32 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Thu, 13 Dec 2012 02:50:04 +0000 |
parents | 8d8f4f5caef4 |
children | e3624b7cd603 |
rev | line source |
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1 package luan.interp; |
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2 |
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3 import org.parboiled.Parboiled; |
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4 import org.parboiled.errors.ErrorUtils; |
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5 import org.parboiled.parserunners.ReportingParseRunner; |
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6 import org.parboiled.parserunners.TracingParseRunner; |
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7 import org.parboiled.support.ParsingResult; |
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8 import luan.LuaFunction; |
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9 import luan.LuaState; |
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10 import luan.LuaException; |
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11 |
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12 |
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13 public final class LuaCompiler { |
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14 private LuaCompiler() {} // never |
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15 |
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16 public static LuaFunction compile(LuaState lua,String src) throws LuaException { |
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17 LuaParser parser = Parboiled.createParser(LuaParser.class); |
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18 ParsingResult<?> result = new ReportingParseRunner(parser.Target()).run(src); |
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19 // ParsingResult<?> result = new TracingParseRunner(parser.Target()).run(src); |
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20 if( result.hasErrors() ) |
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21 throw new LuaException( ErrorUtils.printParseErrors(result) ); |
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22 Object resultValue = result.resultValue; |
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23 if( resultValue instanceof Expressions ) { |
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24 final Expressions expressions = (Expressions)resultValue; |
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25 return new LuaFunction() { |
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26 public Object[] call(LuaState lua,Object... args) throws LuaException { |
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27 return expressions.eval((LuaStateImpl)lua); |
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28 } |
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29 }; |
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30 } |
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31 Chunk chunk = (Chunk)resultValue; |
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32 return chunk.newClosure((LuaStateImpl)lua); |
5cf15507d77e
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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33 } |
5cf15507d77e
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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35 public static LuaState newLuaState() { |
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36 return new LuaStateImpl(); |
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37 } |
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38 } |