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view 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 |
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package luan.interp; import org.parboiled.Parboiled; import org.parboiled.errors.ErrorUtils; import org.parboiled.parserunners.ReportingParseRunner; import org.parboiled.parserunners.TracingParseRunner; import org.parboiled.support.ParsingResult; import luan.LuaFunction; import luan.LuaState; import luan.LuaException; public final class LuaCompiler { private LuaCompiler() {} // never public static LuaFunction compile(LuaState lua,String src) throws LuaException { LuaParser parser = Parboiled.createParser(LuaParser.class); ParsingResult<?> result = new ReportingParseRunner(parser.Target()).run(src); // ParsingResult<?> result = new TracingParseRunner(parser.Target()).run(src); if( result.hasErrors() ) throw new LuaException( ErrorUtils.printParseErrors(result) ); Object resultValue = result.resultValue; if( resultValue instanceof Expressions ) { final Expressions expressions = (Expressions)resultValue; return new LuaFunction() { public Object[] call(LuaState lua,Object... args) throws LuaException { return expressions.eval((LuaStateImpl)lua); } }; } Chunk chunk = (Chunk)resultValue; return chunk.newClosure((LuaStateImpl)lua); } public static LuaState newLuaState() { return new LuaStateImpl(); } }