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comparison src/luan/interp/LtExpr.java @ 44:57054fa43189

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implement table lib git-svn-id: https://luan-java.googlecode.com/svn/trunk@45 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Wed, 26 Dec 2012 23:53:25 +0000
parents e3624b7cd603
children a443637829c1
comparison
equal deleted inserted replaced
43:80b67b1a653c 44:57054fa43189
14 } 14 }
15 15
16 @Override public Object eval(LuaStateImpl lua) throws LuaException { 16 @Override public Object eval(LuaStateImpl lua) throws LuaException {
17 Object o1 = op1.eval(lua); 17 Object o1 = op1.eval(lua);
18 Object o2 = op2.eval(lua); 18 Object o2 = op2.eval(lua);
19 if( o1 instanceof LuaNumber && o2 instanceof LuaNumber ) { 19 return lua.isLessThan(se,o1,o2);
20 LuaNumber n1 = (LuaNumber)o1;
21 LuaNumber n2 = (LuaNumber)o2;
22 return n1.compareTo(n2) < 0;
23 }
24 if( o1 instanceof String && o2 instanceof String ) {
25 String s1 = (String)o1;
26 String s2 = (String)o2;
27 return s1.compareTo(s2) < 0;
28 }
29 LuaFunction fn = lua.getBinHandler(se,"__lt",o1,o2);
30 if( fn != null )
31 return Lua.toBoolean( Lua.first(lua.call(fn,se,"__lt",o1,o2)) );
32 throw new LuaException( lua, se, "attempt to compare " + Lua.type(o1) + " with " + Lua.type(o2) );
33 } 20 }
34 } 21 }