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view core/src/luan/impl/ConcatExpr.java @ 326:db37d6aee4db
remove try-catch statement;
add Luan.try() and Luan.pcall();
git-svn-id: https://luan-java.googlecode.com/svn/trunk@327 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Thu, 19 Mar 2015 00:01:57 +0000 |
parents | 3dcb0f9bee82 |
children | 0d6098a29b3e |
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package luan.impl; import luan.Luan; import luan.LuanFunction; import luan.LuanException; import luan.LuanSource; final class ConcatExpr extends BinaryOpExpr { ConcatExpr(LuanSource.Element se,Expr op1,Expr op2) { super(se,op1,op2); } @Override public Object eval(LuanStateImpl luan) throws LuanException { Object o1 = op1.eval(luan); Object o2 = op2.eval(luan); String s1 = luan.bit(op1.se()).toString(o1); String s2 = luan.bit(op2.se()).toString(o2); /* if( s1 != null && s2 != null ) return s1 + s2; LuanFunction fn = luan.getBinHandler(se,"__concat",o1,o2); if( fn != null ) return Luan.first(luan.call(fn,se,"__concat",o1,o2)); String type = s1==null ? Luan.type(o1) : Luan.type(o2); throw new LuanException( luan, se, "attempt to concatenate a " + type + " value" ); */ return s1 + s2; } }