Mercurial Hosting > luan
annotate core/src/luan/impl/FnCall.java @ 623:d592bf0947a9
remove "~a" idea
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Thu, 07 Jan 2016 03:58:51 -0700 |
parents | 60c549d43988 |
children | 859c0dedc8b6 |
rev | line source |
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move luan/interp to impl
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan.impl; |
2
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2 |
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rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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3 import luan.Luan; |
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4 import luan.LuanFunction; |
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5 import luan.LuanException; |
460 | 6 import luan.LuanElement; |
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metatables now only apply to tables
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7 import luan.LuanTable; |
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8 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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9 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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10 final class FnCall extends CodeImpl implements Expressions { |
22
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proper tail calls
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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11 final Expr fnExpr; |
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proper tail calls
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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12 final Expressions args; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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13 final String fnName; |
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14 |
460 | 15 FnCall(LuanElement el,Expr fnExpr,Expressions args) { |
16 super(el); | |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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17 this.fnExpr = fnExpr; |
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18 this.args = args; |
460 | 19 this.fnName = fnExpr.el().text(); |
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20 } |
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21 |
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change LuanFunction.call() from returning Object[] to returning Object, to reduce garbage collection
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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22 @Override public Object eval(LuanStateImpl luan) throws LuanException { |
577 | 23 return call( luan, fnExpr.eval(luan), Luan.array(args.eval(luan)) ); |
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24 } |
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25 |
577 | 26 private Object call(LuanStateImpl luan,Object o,Object[] argVals) throws LuanException { |
576 | 27 luan.push(el,fnName); |
28 try { | |
29 if( o instanceof LuanFunction ) { | |
30 LuanFunction fn = (LuanFunction)o; | |
577 | 31 return fn.call( luan, argVals ); |
576 | 32 } |
33 if( o instanceof LuanTable ) { | |
34 LuanTable t = (LuanTable)o; | |
35 Object h = t.getHandler("__call"); | |
36 if( h != null ) | |
577 | 37 return call(luan,h,argVals); |
576 | 38 } |
578
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remove LuanState.exception()
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39 throw new LuanException(luan, "attempt to call '"+fnName+"' (a " + Luan.type(o) + " value)" ); |
576 | 40 } finally { |
41 luan.pop(); | |
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42 } |
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43 } |
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44 |
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45 @Override public String toString() { |
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46 return "(FnCall "+fnName+" "+fnExpr+" "+args+")"; |
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47 } |
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48 } |