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comparison src/luan/interp/AddExpr.java @ 3:7a2cdbc5767f

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add LuaState git-svn-id: https://luan-java.googlecode.com/svn/trunk@4 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 16 Nov 2012 05:23:12 +0000
parents 4da26b11d12a
children b7d7069fee58
comparison
equal deleted inserted replaced
2:4da26b11d12a 3:7a2cdbc5767f
1 package luan.interp; 1 package luan.interp;
2 2
3 import luan.Lua; 3 import luan.Lua;
4 import luan.LuaNumber; 4 import luan.LuaNumber;
5 import luan.LuaException; 5 import luan.LuaException;
6 import luan.LuaState;
6 7
7 8
8 final class AddExpr extends BinaryOpExpr { 9 final class AddExpr extends BinaryOpExpr {
9 10
10 AddExpr(Expr op1,Expr op2) { 11 AddExpr(Expr op1,Expr op2) {
11 super(op1,op2); 12 super(op1,op2);
12 } 13 }
13 14
14 @Override Object eval() throws LuaException { 15 @Override Object eval(LuaState lua) throws LuaException {
15 double n1 = Lua.toNumber(op1.eval()).value(); 16 double n1 = Lua.checkNumber(op1.eval(lua)).value();
16 double n2 = Lua.toNumber(op2.eval()).value(); 17 double n2 = Lua.checkNumber(op2.eval(lua)).value();
17 return new LuaNumber( n1 + n2 ); 18 return new LuaNumber( n1 + n2 );
18 } 19 }
19 } 20 }