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comparison src/luan/interp/EqExpr.java @ 40:e3624b7cd603

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implement stack trace git-svn-id: https://luan-java.googlecode.com/svn/trunk@41 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 21 Dec 2012 10:45:54 +0000
parents 8a57ebfdfd78
children a443637829c1
comparison
equal deleted inserted replaced
39:e5bcb1eeafc1 40:e3624b7cd603
3 import luan.Lua; 3 import luan.Lua;
4 import luan.LuaNumber; 4 import luan.LuaNumber;
5 import luan.LuaFunction; 5 import luan.LuaFunction;
6 import luan.LuaTable; 6 import luan.LuaTable;
7 import luan.LuaException; 7 import luan.LuaException;
8 import luan.LuaSource;
8 9
9 10
10 final class EqExpr extends BinaryOpExpr { 11 final class EqExpr extends BinaryOpExpr {
11 12
12 EqExpr(Expr op1,Expr op2) { 13 EqExpr(LuaSource.Element se,Expr op1,Expr op2) {
13 super(op1,op2); 14 super(se,op1,op2);
14 } 15 }
15 16
16 @Override public Object eval(LuaStateImpl lua) throws LuaException { 17 @Override public Object eval(LuaStateImpl lua) throws LuaException {
17 Object o1 = op1.eval(lua); 18 Object o1 = op1.eval(lua);
18 Object o2 = op2.eval(lua); 19 Object o2 = op2.eval(lua);
25 if( mt1==null || mt2==null ) 26 if( mt1==null || mt2==null )
26 return false; 27 return false;
27 Object f = mt1.get("__eq"); 28 Object f = mt1.get("__eq");
28 if( f == null || !f.equals(mt2.get("__eq")) ) 29 if( f == null || !f.equals(mt2.get("__eq")) )
29 return null; 30 return null;
30 LuaFunction fn = Lua.checkFunction(f); 31 LuaFunction fn = lua.checkFunction(se,f);
31 return Lua.toBoolean( Utils.first(fn.call(lua,o1,o2)) ); 32 return Lua.toBoolean( Lua.first(lua.call(fn,se,"__eq",o1,o2)) );
32 } 33 }
33 } 34 }