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annotate src/luan/interp/FnCall.java @ 37:8a57ebfdfd78
add JavaLib
git-svn-id: https://luan-java.googlecode.com/svn/trunk@38 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Thu, 20 Dec 2012 02:36:07 +0000 |
parents | 2a35154aec14 |
children | e3624b7cd603 |
rev | line source |
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2
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan.interp; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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2 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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3 import luan.Lua; |
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4 import luan.LuaFunction; |
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5 import luan.LuaException; |
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6 |
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7 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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8 final class FnCall implements Expressions { |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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9 final Expr fnExpr; |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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10 final Expressions args; |
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11 |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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12 FnCall(Expr fnExpr,Expressions args) { |
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13 this.fnExpr = fnExpr; |
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14 this.args = args; |
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15 } |
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16 |
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17 @Override public Object[] eval(LuaStateImpl lua) throws LuaException { |
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18 return call( lua, fnExpr.eval(lua) ); |
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19 } |
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20 |
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21 private Object[] call(LuaStateImpl lua,Object o) throws LuaException { |
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22 if( o instanceof LuaFunction ) { |
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23 LuaFunction fn = (LuaFunction)o; |
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24 return fn.call( lua, args.eval(lua) ); |
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25 } |
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26 Object h = lua.getHandler("__call",o); |
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27 if( h != null ) |
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28 return call(lua,h); |
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29 throw new LuaException( "attempt to call a " + Lua.type(o) + " value" ); |
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30 } |
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31 } |