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view core/src/luan/impl/ConcatExpr.java @ 369:85bf9f0379aa
template statements no longer depend on 'Io' being defined
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 17 Apr 2015 06:25:38 -0600 |
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; } }