Mercurial Hosting > luan
diff core/src/luan/impl/AddExpr.java @ 171:3dcb0f9bee82
add core component
git-svn-id: https://luan-java.googlecode.com/svn/trunk@172 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Sun, 22 Jun 2014 05:41:22 +0000 |
parents | src/luan/impl/AddExpr.java@4eaee12f6c65 |
children | bbad2d06f728 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/core/src/luan/impl/AddExpr.java Sun Jun 22 05:41:22 2014 +0000 @@ -0,0 +1,23 @@ +package luan.impl; + +import luan.Luan; +import luan.LuanException; +import luan.LuanSource; + + +final class AddExpr extends BinaryOpExpr { + + AddExpr(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); + Number n1 = Luan.toNumber(o1); + Number n2 = Luan.toNumber(o2); + if( n1 != null && n2 != null ) + return n1.doubleValue() + n2.doubleValue(); + return arithmetic(luan,"__add",o1,o2); + } +}