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view core/src/luan/impl/NotExpr.java @ 236:1fada5587469
add Basic.to_boolean and change "not" operator to require a boolean
git-svn-id: https://luan-java.googlecode.com/svn/trunk@237 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Sun, 05 Oct 2014 09:11:10 +0000 |
parents | 2456ef7ada02 |
children | b48cfa14ba60 |
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package luan.impl; import luan.Luan; import luan.LuanException; import luan.LuanSource; final class NotExpr extends UnaryOpExpr { NotExpr(LuanSource.Element se,Expr op) { super(se,op); } @Override public Object eval(LuanStateImpl luan) throws LuanException { return !luan.bit(op.se()).checkBoolean( op.eval(luan) ); } @Override public String toString() { return "(NotExpr "+op+")"; } }