Mercurial Hosting > luan
view core/src/luan/impl/IndexExpr.java @ 498:ee55be414a34
Http.response is now mostly luan
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Mon, 18 May 2015 00:25:35 -0600 |
parents | b48cfa14ba60 |
children | d3183a330ff5 |
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package luan.impl; import luan.Luan; import luan.LuanException; import luan.LuanTable; import luan.LuanFunction; import luan.LuanElement; import luan.LuanMeta; import luan.modules.StringLuan; import luan.modules.BinaryLuan; import luan.modules.JavaLuan; final class IndexExpr extends BinaryOpExpr { IndexExpr(LuanElement el,Expr op1,Expr op2) { super(el,op1,op2); } @Override public Object eval(LuanStateImpl luan) throws LuanException { return index(luan,op1.eval(luan),op2.eval(luan)); } private Object index(LuanStateImpl luan,Object obj,Object key) throws LuanException { if( obj instanceof LuanTable ) { LuanTable tbl = (LuanTable)obj; return tbl.get(luan,key); } if( obj instanceof String ) return StringLuan.__index(luan,(String)obj,key); if( obj instanceof byte[] ) return BinaryLuan.__index(luan,(byte[])obj,key); if( obj != null && luan.currentEnvironment().hasJava() ) return JavaLuan.__index(luan,obj,key); else throw luan.bit(op1.el()).exception( "attempt to index '"+op1.el().text()+"' (a " + Luan.type(obj) + " value)" ); } }