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annotate src/luan/modules/JavaLuan.java @ 1267:9fa8b8389578

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add LuanTable.luan; support metatable __gc(); add luan.sql;
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 12 Nov 2018 02:10:41 -0700
parents e54ae41e9501
children f41919741100
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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4c0131c2b650 merge luan/lib into modules
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diff changeset
1 package luan.modules;
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2
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3 import java.lang.reflect.Array;
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4 import java.lang.reflect.AccessibleObject;
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5 import java.lang.reflect.Member;
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6 import java.lang.reflect.Field;
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7 import java.lang.reflect.Method;
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8 import java.lang.reflect.Constructor;
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9 import java.lang.reflect.Modifier;
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10 import java.lang.reflect.InvocationHandler;
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11 import java.lang.reflect.Proxy;
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12 import java.util.Map;
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13 import java.util.HashMap;
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14 import java.util.List;
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15 import java.util.ArrayList;
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16 import java.util.Iterator;
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17 import java.util.Collections;
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18 import java.util.Arrays;
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19 import java.util.Comparator;
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20 import luan.Luan;
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21 import luan.LuanState;
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22 import luan.LuanTable;
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23 import luan.LuanException;
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24 import luan.LuanFunction;
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25 import luan.LuanJavaFunction;
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27
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28 public final class JavaLuan {
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30 public static void java(LuanState luan) throws LuanException {
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31 check(luan);
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32 luan.javaOk.ok = true;
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33 }
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34
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35 public static final LuanFunction javaFn;
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36 static {
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37 try {
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38 javaFn = new LuanJavaFunction(JavaLuan.class.getMethod("java",LuanState.class),null);
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39 } catch(NoSuchMethodException e) {
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40 throw new RuntimeException(e);
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41 }
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42 }
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43
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44 private static void checkJava(LuanState luan) throws LuanException {
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45 if( !luan.javaOk.ok )
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46 throw new LuanException("Java isn't allowed");
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47 }
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48
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49 public static Object __index(LuanState luan,Object obj,Object key) throws LuanException {
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50 checkJava(luan);
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51 Class cls;
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52 if( obj instanceof Static ) {
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53 Static st = (Static)obj;
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54 cls = st.cls;
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55 if( key instanceof String ) {
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56 String name = (String)key;
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57 if( "class".equals(name) ) {
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58 return cls;
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59 } else if( "new".equals(name) ) {
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60 Constructor[] constructors = cls.getConstructors();
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61 if( constructors.length > 0 ) {
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62 if( constructors.length==1 ) {
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63 return new LuanJavaFunction(constructors[0],null);
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64 } else {
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65 List<LuanJavaFunction> fns = new ArrayList<LuanJavaFunction>();
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66 for( Constructor constructor : constructors ) {
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67 fns.add(new LuanJavaFunction(constructor,null));
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68 }
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69 return new AmbiguousJavaFunction(fns);
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70 }
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71 }
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72 /*
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73 } else if( "assert".equals(name) ) {
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74 return new LuanJavaFunction(assertClass,new AssertClass(cls));
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75 */
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76 } else if( "luan_proxy".equals(name) ) {
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77 return new LuanJavaFunction(luan_proxyMethod,st);
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78 } else {
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79 List<Member> members = getStaticMembers(cls,name);
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80 if( !members.isEmpty() ) {
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81 return member(null,members);
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82 }
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83 }
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84 }
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85 } else {
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86 cls = obj.getClass();
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87 if( cls.isArray() ) {
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88 if( "length".equals(key) ) {
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89 return Array.getLength(obj);
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90 }
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91 Integer i = Luan.asInteger(key);
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92 if( i != null ) {
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93 return Array.get(obj,i);
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94 }
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95 // throw new LuanException(luan,"invalid member '"+key+"' for java array: "+obj);
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96 } else if( key instanceof String ) {
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97 String name = (String)key;
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98 if( "instanceof".equals(name) ) {
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99 return new LuanJavaFunction(instanceOf,new InstanceOf(obj));
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100 } else {
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101 List<Member> members = getMembers(cls,name);
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102 if( !members.isEmpty() ) {
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103 return member(obj,members);
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104 }
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105 }
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106 }
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107 }
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108 //System.out.println("invalid member '"+key+"' for java object: "+obj);
687
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109 throw new LuanException( "invalid index '"+key+"' for java "+cls );
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110 }
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111
56
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112 private static Object member(Object obj,List<Member> members) throws LuanException {
37
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113 try {
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114 if( members.size()==1 ) {
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115 Member member = members.get(0);
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116 if( member instanceof Static ) {
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117 return member;
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118 } else if( member instanceof Field ) {
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119 Field field = (Field)member;
157
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120 Object rtn = field.get(obj);
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121 return rtn instanceof Object[] ? Arrays.asList((Object[])rtn) : rtn;
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122 } else {
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123 Method method = (Method)member;
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124 return new LuanJavaFunction(method,obj);
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125 }
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126 } else {
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64ecb7a3aad7 rename Lua to Luan
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127 List<LuanJavaFunction> fns = new ArrayList<LuanJavaFunction>();
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128 for( Member member : members ) {
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129 Method method = (Method)member;
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130 fns.add(new LuanJavaFunction(method,obj));
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131 }
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132 return new AmbiguousJavaFunction(fns);
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133 }
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134 } catch(IllegalAccessException e) {
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135 throw new RuntimeException(e);
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136 }
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137 }
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138
576
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139 public static void __new_index(LuanState luan,Object obj,Object key,Object value) throws LuanException {
421
b31d614343e8 add Io.LuanString.text_writer();
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140 checkJava(luan);
511
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141 Class cls;
60
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142 if( obj instanceof Static ) {
511
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143 Static st = (Static)obj;
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144 cls = st.cls;
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145 if( key instanceof String ) {
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146 String name = (String)key;
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147 List<Member> members = getStaticMembers(cls,name);
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148 if( !members.isEmpty() ) {
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149 if( members.size() != 1 )
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150 throw new RuntimeException("not field '"+name+"' of "+obj);
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151 setMember(obj,members,value);
421
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152 return;
60
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153 }
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154 }
578
60c549d43988 remove LuanState.exception()
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155 // throw new LuanException(luan,"invalid member '"+key+"' for: "+obj);
511
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156 } else {
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157 cls = obj.getClass();
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158 if( cls.isArray() ) {
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159 Integer i = Luan.asInteger(key);
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160 if( i != null ) {
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161 Array.set(obj,i,value);
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162 return;
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163 }
578
60c549d43988 remove LuanState.exception()
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164 // throw new LuanException(luan,"invalid member '"+key+"' for java array: "+obj);
511
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165 } else if( key instanceof String ) {
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166 String name = (String)key;
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167 List<Member> members = getMembers(cls,name);
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168 if( !members.isEmpty() ) {
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169 if( members.size() != 1 )
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170 throw new RuntimeException("not field '"+name+"' of "+obj);
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171 setMember(obj,members,value);
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172 return;
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173 }
60
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174 }
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175 }
646
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176 throw new LuanException( "invalid index for java "+cls );
60
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177 }
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178
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179 private static void setMember(Object obj,List<Member> members,Object value) {
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180 Field field = (Field)members.get(0);
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181 try {
100
6c827f7275df fix JavaLib.setMember() for int conversion
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182 try {
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183 field.set(obj,value);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 90
diff changeset
184 } catch(IllegalArgumentException e) {
6c827f7275df fix JavaLib.setMember() for int conversion
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parents: 90
diff changeset
185 Class cls = field.getType();
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parents: 90
diff changeset
186 if( value instanceof Number ) {
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diff changeset
187 Number n = (Number)value;
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188 if( cls.equals(Integer.TYPE) || cls.equals(Integer.class) ) {
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diff changeset
189 int r = n.intValue();
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parents: 90
diff changeset
190 if( r==n.doubleValue() ) {
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diff changeset
191 field.setInt(obj,r);
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diff changeset
192 return;
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diff changeset
193 }
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194 }
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195 }
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diff changeset
196 throw e;
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diff changeset
197 }
60
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diff changeset
198 } catch(IllegalAccessException e) {
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diff changeset
199 throw new RuntimeException(e);
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diff changeset
200 }
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diff changeset
201 }
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diff changeset
202
102
90b918cbf888 add JavaLib.privateAccess
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diff changeset
203 public static boolean privateAccess = false;
56
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diff changeset
204 private static Map<Class,Map<String,List<Member>>> memberMap = new HashMap<Class,Map<String,List<Member>>>();
37
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
205
778
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diff changeset
206 private static List<Member> getMembers(Class cls,String name) {
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diff changeset
207 Map<String,List<Member>> clsMap;
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diff changeset
208 synchronized(memberMap) {
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diff changeset
209 clsMap = memberMap.get(cls);
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diff changeset
210 if( clsMap == null ) {
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diff changeset
211 clsMap = new HashMap<String,List<Member>>();
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diff changeset
212 for( Class c : cls.getClasses() ) {
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diff changeset
213 String s = c.getSimpleName();
305ffb00ebc1 improve synchronization in JavaLuan
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diff changeset
214 List<Member> list = new ArrayList<Member>();
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diff changeset
215 clsMap.put(s,list);
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parents: 775
diff changeset
216 list.add(new Static(c));
58
d6c454b7f58c make concat work with any type;
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parents: 56
diff changeset
217 }
778
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parents: 775
diff changeset
218 for( Field field : cls.getFields() ) {
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diff changeset
219 String s = field.getName();
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parents: 775
diff changeset
220 try {
305ffb00ebc1 improve synchronization in JavaLuan
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parents: 775
diff changeset
221 if( !cls.getField(s).equals(field) )
305ffb00ebc1 improve synchronization in JavaLuan
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parents: 775
diff changeset
222 continue; // not accessible
305ffb00ebc1 improve synchronization in JavaLuan
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parents: 775
diff changeset
223 } catch(NoSuchFieldException e) {
305ffb00ebc1 improve synchronization in JavaLuan
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parents: 775
diff changeset
224 throw new RuntimeException(e);
305ffb00ebc1 improve synchronization in JavaLuan
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parents: 775
diff changeset
225 }
305ffb00ebc1 improve synchronization in JavaLuan
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parents: 775
diff changeset
226 List<Member> list = new ArrayList<Member>();
71
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227 clsMap.put(s,list);
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228 list.add(field);
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229 }
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230 for( Method method : cls.getMethods() ) {
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231 String s = method.getName();
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232 List<Member> list = clsMap.get(s);
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233 if( list == null || !(list.get(0) instanceof Method) ) {
102
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234 list = new ArrayList<Member>();
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235 clsMap.put(s,list);
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236 }
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237 list.add(method);
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238 }
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239 if( privateAccess ) {
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240 for( Method method : cls.getDeclaredMethods() ) {
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241 String s = method.getName();
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242 List<Member> list = clsMap.get(s);
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243 if( list == null ) {
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244 list = new ArrayList<Member>();
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245 clsMap.put(s,list);
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246 } else if( !(list.get(0) instanceof Method) )
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247 continue;
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248 if( !list.contains(method) ) {
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249 list.add(method);
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250 }
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251 }
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252 for( Field field : cls.getDeclaredFields() ) {
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253 String s = field.getName();
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254 List<Member> list = clsMap.get(s);
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255 if( list == null ) {
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256 list = new ArrayList<Member>();
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257 clsMap.put(s,list);
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258 list.add(field);
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259 }
102
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260 }
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261 }
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262 for( List<Member> members : clsMap.values() ) {
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263 for( Member m : members ) {
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264 if( m instanceof AccessibleObject )
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265 ((AccessibleObject)m).setAccessible(true);
102
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266 }
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267 }
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268 memberMap.put(cls,clsMap);
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269 }
37
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270 }
56
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271 List<Member> rtn = clsMap.get(name);
55
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272 if( rtn==null )
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273 rtn = Collections.emptyList();
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274 return rtn;
37
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275 }
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276
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277 private static List<Member> getStaticMembers(Class cls,String name) {
56
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278 List<Member> staticMembers = new ArrayList<Member>();
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279 for( Member m : getMembers(cls,name) ) {
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280 if( Modifier.isStatic(m.getModifiers()) )
37
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281 staticMembers.add(m);
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282 }
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283 return staticMembers;
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284 }
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285
56
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286 static final class Static implements Member {
37
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287 final Class cls;
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288
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289 Static(Class cls) {
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290 this.cls = cls;
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291 }
56
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292
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293 @Override public String toString() {
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294 return cls.toString();
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295 }
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296
437
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297 @Override public Class getDeclaringClass() {
56
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298 return cls.getDeclaringClass();
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299 }
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300
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diff changeset
301 @Override public String getName() {
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302 return cls.getName();
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303 }
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304
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diff changeset
305 @Override public int getModifiers() {
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diff changeset
306 return cls.getModifiers();
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diff changeset
307 }
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diff changeset
308
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diff changeset
309 @Override public boolean isSynthetic() {
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diff changeset
310 return cls.isSynthetic();
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diff changeset
311 }
304
03e9cda4748d add JavaLuan.Static.luan_proxy()
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diff changeset
312
502
d3183a330ff5 improve the __index metamethod to work with any type;
Franklin Schmidt <fschmidt@gmail.com>
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diff changeset
313 public Object luan_proxy(final LuanState luan,final LuanTable t) throws LuanException {
304
03e9cda4748d add JavaLuan.Static.luan_proxy()
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diff changeset
314 return Proxy.newProxyInstance(
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
315 cls.getClassLoader(),
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
316 new Class[]{cls},
03e9cda4748d add JavaLuan.Static.luan_proxy()
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diff changeset
317 new InvocationHandler() {
03e9cda4748d add JavaLuan.Static.luan_proxy()
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diff changeset
318 public Object invoke(Object proxy,Method method, Object[] args)
03e9cda4748d add JavaLuan.Static.luan_proxy()
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parents: 301
diff changeset
319 throws Throwable
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
320 {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
321 if( args==null )
03e9cda4748d add JavaLuan.Static.luan_proxy()
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diff changeset
322 args = new Object[0];
03e9cda4748d add JavaLuan.Static.luan_proxy()
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parents: 301
diff changeset
323 String name = method.getName();
1267
9fa8b8389578 add LuanTable.luan;
Franklin Schmidt <fschmidt@gmail.com>
parents: 1134
diff changeset
324 Object fnObj = t.get(name);
502
d3183a330ff5 improve the __index metamethod to work with any type;
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diff changeset
325 if( fnObj == null )
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diff changeset
326 throw new NullPointerException("luan_proxy couldn't find method '"+name+"'");
647
8e8c30b72e9b move methods from LuanState to Luan
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parents: 646
diff changeset
327 LuanFunction fn = Luan.checkFunction(fnObj);
574
6cc2f047019b remove LuanState.call()
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parents: 572
diff changeset
328 return Luan.first(fn.call(luan,args));
304
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
329 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
330 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
331 );
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
332 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
333 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
334 private static final Method luan_proxyMethod;
03e9cda4748d add JavaLuan.Static.luan_proxy()
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parents: 301
diff changeset
335 static {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
336 try {
502
d3183a330ff5 improve the __index metamethod to work with any type;
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diff changeset
337 luan_proxyMethod = Static.class.getMethod("luan_proxy",LuanState.class,LuanTable.class);
304
03e9cda4748d add JavaLuan.Static.luan_proxy()
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parents: 301
diff changeset
338 luan_proxyMethod.setAccessible(true);
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
339 } catch(NoSuchMethodException e) {
03e9cda4748d add JavaLuan.Static.luan_proxy()
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parents: 301
diff changeset
340 throw new RuntimeException(e);
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
341 }
37
8a57ebfdfd78 add JavaLib
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diff changeset
342 }
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
343
299
a74559240b4f simplify PackageLuan and remove IO loading param
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diff changeset
344 public static Static load(LuanState luan,String name) throws LuanException {
300
9fb523472035 add java() to control java access
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parents: 299
diff changeset
345 checkJava(luan);
51
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
346 Class cls;
37
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diff changeset
347 try {
51
28dfd91a816c various small issues
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parents: 50
diff changeset
348 cls = Class.forName(name);
37
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349 } catch(ClassNotFoundException e) {
51
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
350 try {
28dfd91a816c various small issues
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parents: 50
diff changeset
351 cls = Thread.currentThread().getContextClassLoader().loadClass(name);
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
352 } catch(ClassNotFoundException e2) {
108
3c404a296995 make Package module more standard;
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parents: 102
diff changeset
353 return null;
51
28dfd91a816c various small issues
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parents: 50
diff changeset
354 }
37
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355 }
51
28dfd91a816c various small issues
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parents: 50
diff changeset
356 return new Static(cls);
37
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357 }
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parents: 299
diff changeset
358
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Franklin Schmidt <fschmidt@gmail.com>
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diff changeset
359 private static final Comparator<LuanJavaFunction> varArgsSorter = new Comparator<LuanJavaFunction>() {
e8fc6712b468 luan Rpc uses luan.lib.rpc
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360 public int compare(LuanJavaFunction fn1,LuanJavaFunction fn2) {
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diff changeset
361 return fn2.getParameterCount() - fn1.getParameterCount();
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diff changeset
362 }
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diff changeset
363 };
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diff changeset
364
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9fb523472035 add java() to control java access
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parents: 299
diff changeset
365 private static class AmbiguousJavaFunction extends LuanFunction {
48
64ecb7a3aad7 rename Lua to Luan
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parents: 46
diff changeset
366 private final Map<Integer,List<LuanJavaFunction>> fnMap = new HashMap<Integer,List<LuanJavaFunction>>();
1120
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367 private List<LuanJavaFunction> varArgs = new ArrayList<LuanJavaFunction>();
37
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parents:
diff changeset
368
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
369 AmbiguousJavaFunction(List<LuanJavaFunction> fns) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
370 for( LuanJavaFunction fn : fns ) {
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Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
371 if( fn.isVarArgs() ) {
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parents: 795
diff changeset
372 varArgs.add(fn);
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Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
373 } else {
e8fc6712b468 luan Rpc uses luan.lib.rpc
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parents: 795
diff changeset
374 Integer n = fn.getParameterCount();
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Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
375 List<LuanJavaFunction> list = fnMap.get(n);
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
376 if( list==null ) {
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parents: 795
diff changeset
377 list = new ArrayList<LuanJavaFunction>();
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parents: 795
diff changeset
378 fnMap.put(n,list);
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diff changeset
379 }
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diff changeset
380 list.add(fn);
37
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
381 }
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parents:
diff changeset
382 }
1120
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Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
383 Collections.sort(varArgs,varArgsSorter);
37
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
384 }
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
385
112
f5af13062b10 fix previous rev
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 108
diff changeset
386 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
1120
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
387 List<LuanJavaFunction> list = fnMap.get(args.length);
e8fc6712b468 luan Rpc uses luan.lib.rpc
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parents: 795
diff changeset
388 if( list != null ) {
e8fc6712b468 luan Rpc uses luan.lib.rpc
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parents: 795
diff changeset
389 for( LuanJavaFunction fn : list ) {
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
390 try {
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
391 return fn.rawCall(luan,args);
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
392 } catch(IllegalArgumentException e) {}
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
393 }
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
394 }
e8fc6712b468 luan Rpc uses luan.lib.rpc
Franklin Schmidt <fschmidt@gmail.com>
parents: 795
diff changeset
395 for( LuanJavaFunction fn : varArgs ) {
37
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
396 try {
55
9381b23ea9e1 various fixes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 51
diff changeset
397 return fn.rawCall(luan,args);
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
398 } catch(IllegalArgumentException e) {}
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
399 }
646
cdc70de628b5 simplify LuanException
Franklin Schmidt <fschmidt@gmail.com>
parents: 645
diff changeset
400 throw new LuanException("no method matched args: "+Arrays.asList(args));
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
401 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
402 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
403
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
404 private static class InstanceOf {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
405 private final Object obj;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
406
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
407 InstanceOf(Object obj) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
408 this.obj = obj;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
409 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
410
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
411 public boolean instanceOf(Static st) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
412 return st.cls.isInstance(obj);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
413 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
414 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
415 private static final Method instanceOf;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
416 static {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
417 try {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
418 instanceOf = InstanceOf.class.getMethod("instanceOf",Static.class);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
419 instanceOf.setAccessible(true);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
420 } catch(NoSuchMethodException e) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
421 throw new RuntimeException(e);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
422 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
423 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
424
304
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
425 /*
64
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
426 private static class AssertClass {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
427 private final Class cls;
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
428
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
429 AssertClass(Class cls) {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
430 this.cls = cls;
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
431 }
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
432
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
433 public Object assertClass(LuanState luan,Object v) throws LuanException {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
434 if( !cls.isInstance(v) ) {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
435 String got = v.getClass().getSimpleName();
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
436 String expected = cls.getSimpleName();
578
60c549d43988 remove LuanState.exception()
Franklin Schmidt <fschmidt@gmail.com>
parents: 576
diff changeset
437 throw new LuanException(luan,"bad argument #1 ("+expected+" expected, got "+got+")");
64
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
438 }
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
439 return v;
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
440 }
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
441 }
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
442 private static final Method assertClass;
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
443 static {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
444 try {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
445 assertClass = AssertClass.class.getMethod("assertClass",LuanState.class,Object.class);
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
446 assertClass.setAccessible(true);
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
447 } catch(NoSuchMethodException e) {
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
448 throw new RuntimeException(e);
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
449 }
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
450 }
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
451
177cfdc2bdb3 add type assertions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 63
diff changeset
452
62
7c05f53ef6cb improve java.proxy
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 61
diff changeset
453 public static Object proxy(final LuanState luan,Static st,final LuanTable t,final Object base) throws LuanException {
61
183d470be7e8 add java.proxy
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 60
diff changeset
454 return Proxy.newProxyInstance(
183d470be7e8 add java.proxy
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 60
diff changeset
455 st.cls.getClassLoader(),
183d470be7e8 add java.proxy
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 60
diff changeset
456 new Class[]{st.cls},
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457 new InvocationHandler() {
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458 public Object invoke(Object proxy,Method method, Object[] args)
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459 throws Throwable
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460 {
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461 if( args==null )
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462 args = new Object[0];
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463 String name = method.getName();
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464 Object fnObj = t.get(name);
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465 if( fnObj==null && base!=null )
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466 return method.invoke(base,args);
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467 LuanFunction fn = luan.checkFunction(fnObj);
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468 return Luan.first(luan.call(fn,name,args));
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469 }
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470 }
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471 );
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472 }
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473 */
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474
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475
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476
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477 // security
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478
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479 public interface Security {
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480 public void check(LuanState luan,String name) throws LuanException;
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481 }
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482
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483 private static String SECURITY_KEY = "Java.Security";
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484
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485 static void check(LuanState luan) throws LuanException {
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486 Security s = (Security)luan.registry().get(SECURITY_KEY);
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487 if( s!=null ) {
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488 String name = LuanException.currentSource();
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489 s.check(luan,name);
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490 }
301
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491 }
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492
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493 public static void setSecurity(LuanState luan,Security s) {
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494 luan.registry().put(SECURITY_KEY,s);
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495 }
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496
37
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497 }