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comparison core/src/luan/impl/ConcatExpr.java @ 645:859c0dedc8b6

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remove LuanSource
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 29 Mar 2016 18:09:51 -0600
parents 4723d22062ce
children 8e8c30b72e9b
comparison
equal deleted inserted replaced
644:ba1e318377c5 645:859c0dedc8b6
1 package luan.impl; 1 package luan.impl;
2 2
3 import luan.Luan; 3 import luan.Luan;
4 import luan.LuanFunction; 4 import luan.LuanFunction;
5 import luan.LuanException; 5 import luan.LuanException;
6 import luan.LuanElement;
7 6
8 7
9 final class ConcatExpr extends BinaryOpExpr { 8 final class ConcatExpr extends BinaryOpExpr {
10 9
11 ConcatExpr(LuanElement el,Expr op1,Expr op2) { 10 ConcatExpr(Expr op1,Expr op2) {
12 super(el,op1,op2); 11 super(op1,op2);
13 } 12 }
14 13
15 @Override public Object eval(LuanStateImpl luan) throws LuanException { 14 @Override public Object eval(LuanStateImpl luan) throws LuanException {
16 Object o1 = op1.eval(luan); 15 Object o1 = op1.eval(luan);
17 Object o2 = op2.eval(luan); 16 Object o2 = op2.eval(luan);
18 luan.push(el,null); 17 LuanFunction fn = luan.getBinHandler("__concat",o1,o2);
19 try { 18 if( fn != null )
20 LuanFunction fn = luan.getBinHandler("__concat",o1,o2); 19 return Luan.first(fn.call(luan,new Object[]{o1,o2}));
21 if( fn != null ) 20 String s1 = luan.toString(o1);
22 return Luan.first(fn.call(luan,new Object[]{o1,o2})); 21 String s2 = luan.toString(o2);
23 } finally {
24 luan.pop();
25 }
26 String s1 = luan.toString(o1,op1.el());
27 String s2 = luan.toString(o2,op2.el());
28 return s1 + s2; 22 return s1 + s2;
29 } 23 }
30 } 24 }