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comparison core/src/luan/LuanTable.java @ 502:d3183a330ff5

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improve the __index metamethod to work with any type; simplify luan_proxy to eliminate base;
author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 19 May 2015 17:57:20 -0600
parents ee55be414a34
children 92c3d22745b8
comparison
equal deleted inserted replaced
501:f26485a3692c 502:d3183a330ff5
11 import java.util.Comparator; 11 import java.util.Comparator;
12 import java.util.Set; 12 import java.util.Set;
13 import java.util.HashSet; 13 import java.util.HashSet;
14 import java.util.IdentityHashMap; 14 import java.util.IdentityHashMap;
15 import java.util.regex.Pattern; 15 import java.util.regex.Pattern;
16 import luan.modules.StringLuan;
17 import luan.modules.BinaryLuan;
18 import luan.modules.JavaLuan;
16 19
17 20
18 public final class LuanTable implements DeepCloneable { 21 public final class LuanTable implements DeepCloneable {
19 private Map map = null; 22 private Map map = null;
20 private List list = null; 23 private List list = null;
118 } 121 }
119 if( h instanceof LuanMeta ) { 122 if( h instanceof LuanMeta ) {
120 LuanMeta meta = (LuanMeta)h; 123 LuanMeta meta = (LuanMeta)h;
121 return meta.__index(luan,this,key); 124 return meta.__index(luan,this,key);
122 } 125 }
123 if( h instanceof LuanTable ) { 126 return index(luan.JAVA,h,key);
124 LuanTable tbl = (LuanTable)h; 127 }
128
129 public static Object index(LuanBit bit,Object obj,Object key) throws LuanException {
130 LuanState luan = bit.luan;
131 if( obj instanceof LuanTable ) {
132 LuanTable tbl = (LuanTable)obj;
125 return tbl.get(luan,key); 133 return tbl.get(luan,key);
126 } 134 }
127 throw luan.exception("invalid type "+Luan.type(h)+" for metamethod __index"); 135 if( obj instanceof String )
136 return StringLuan.__index(luan,(String)obj,key);
137 if( obj instanceof byte[] )
138 return BinaryLuan.__index(luan,(byte[])obj,key);
139 if( obj != null && luan.currentEnvironment().hasJava() )
140 return JavaLuan.__index(luan,obj,key);
141 else if( bit.el==null )
142 throw bit.exception( "attempt to index a " + Luan.type(obj) + " value" );
143 else
144 throw bit.exception( "attempt to index '"+bit.el.text()+"' (a " + Luan.type(obj) + " value)" );
128 } 145 }
129 146
130 public Object rawGet(Object key) { 147 public Object rawGet(Object key) {
131 if( list != null ) { 148 if( list != null ) {
132 Integer iT = Luan.asInteger(key); 149 Integer iT = Luan.asInteger(key);