Mercurial Hosting > luan
diff src/luan/impl/FnCall.java @ 166:4eaee12f6c65
move luan/interp to impl
git-svn-id: https://luan-java.googlecode.com/svn/trunk@167 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 04:17:38 +0000 |
parents | src/luan/interp/FnCall.java@14281d5bd36f |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/luan/impl/FnCall.java Sun Jun 22 04:17:38 2014 +0000 @@ -0,0 +1,39 @@ +package luan.impl; + +import luan.Luan; +import luan.LuanFunction; +import luan.LuanException; +import luan.LuanSource; + + +final class FnCall extends CodeImpl implements Expressions { + final Expr fnExpr; + final Expressions args; + final String fnName; + + FnCall(LuanSource.Element se,Expr fnExpr,Expressions args) { + super(se); + this.fnExpr = fnExpr; + this.args = args; + this.fnName = fnExpr.se().text(); + } + + @Override public Object eval(LuanStateImpl luan) throws LuanException { + return call( luan, fnExpr.eval(luan) ); + } + + private Object call(LuanStateImpl luan,Object o) throws LuanException { + if( o instanceof LuanFunction ) { + LuanFunction fn = (LuanFunction)o; + return luan.bit(se).call( fn, fnName, Luan.array(args.eval(luan)) ); + } + Object h = luan.getHandler("__call",o); + if( h != null ) + return call(luan,h); + throw luan.bit(fnExpr.se()).exception( "attempt to call '"+fnExpr.se().text()+"' (a " + Luan.type(o) + " value)" ); + } + + @Override public String toString() { + return "(FnCall "+fnName+" "+fnExpr+" "+args+")"; + } +}