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comparison src/luan/interp/LuanCompiler.java @ 48:64ecb7a3aad7

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rename Lua to Luan git-svn-id: https://luan-java.googlecode.com/svn/trunk@49 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 28 Dec 2012 03:29:12 +0000
parents
children 8ede219cd111
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47:659c7139e903 48:64ecb7a3aad7
1 package luan.interp;
2
3 import org.parboiled.Parboiled;
4 import org.parboiled.errors.ErrorUtils;
5 import org.parboiled.parserunners.ReportingParseRunner;
6 import org.parboiled.parserunners.TracingParseRunner;
7 import org.parboiled.support.ParsingResult;
8 import luan.LuanFunction;
9 import luan.LuanState;
10 import luan.LuanException;
11 import luan.LuanSource;
12 import luan.LuanElement;
13
14
15 public final class LuanCompiler {
16 private LuanCompiler() {} // never
17
18 public static LuanFunction compile(LuanState lua,LuanSource src) throws LuanException {
19 LuanParser parser = Parboiled.createParser(LuanParser.class);
20 parser.source = src;
21 ParsingResult<?> result = new ReportingParseRunner(parser.Target()).run(src.text);
22 // ParsingResult<?> result = new TracingParseRunner(parser.Target()).run(src);
23 if( result.hasErrors() )
24 throw new LuanException( lua, null, ErrorUtils.printParseErrors(result) );
25 Object resultValue = result.resultValue;
26 if( resultValue instanceof Expressions ) {
27 final Expressions expressions = (Expressions)resultValue;
28 return new LuanFunction() {
29 public Object[] call(LuanState lua,Object[] args) throws LuanException {
30 return expressions.eval((LuanStateImpl)lua);
31 }
32 };
33 }
34 Chunk chunk = (Chunk)resultValue;
35 return chunk.newClosure((LuanStateImpl)lua);
36 }
37
38 public static LuanState newLuaState() {
39 return new LuanStateImpl();
40 }
41 }