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annotate core/src/luan/modules/JavaLuan.java @ 404:d55e873e1f0d

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metatables now only apply to tables
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 29 Apr 2015 07:04:40 -0600
parents 62b457c50594
children b31d614343e8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
167
4c0131c2b650 merge luan/lib into modules
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diff changeset
1 package luan.modules;
37
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2
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3 import java.lang.reflect.Array;
50
272b6f1d7dac fix java accessibility
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4 import java.lang.reflect.AccessibleObject;
37
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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;
37
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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 luan.Luan;
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20 import luan.LuanState;
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21 import luan.LuanTable;
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22 import luan.LuanException;
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23 import luan.LuanFunction;
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24 import luan.LuanJavaFunction;
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25 import luan.LuanElement;
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26
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27
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28 public final class JavaLuan {
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29
301
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30 public static void java(LuanState luan) throws LuanException {
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31 check(luan,luan.currentSource().name);
300
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32 luan.currentEnvironment().setJava();
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33 }
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34
321
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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
300
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44 private static void checkJava(LuanState luan) throws LuanException {
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45 if( !luan.currentEnvironment().hasJava() )
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46 throw luan.exception("Java isn't allowed");
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47 }
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48
202
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49 private static boolean isLoaded(LuanState luan) {
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50 // return PackageLuan.loaded(luan).get("luan:Java") != null;
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51 return true;
202
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52 }
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53
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54 public static Object __index(LuanState luan,Object obj,Object key) throws LuanException {
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55 if( !luan.currentEnvironment().hasJava() )
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56 return null;
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57 if( obj instanceof Static ) {
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58 if( key instanceof String ) {
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59 String name = (String)key;
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60 Static st = (Static)obj;
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61 Class cls = st.cls;
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62 if( "class".equals(name) ) {
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63 return cls;
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64 } else if( "new".equals(name) ) {
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65 Constructor<?>[] constructors = cls.getConstructors();
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66 if( constructors.length > 0 ) {
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67 if( constructors.length==1 ) {
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68 return new LuanJavaFunction(constructors[0],null);
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69 } else {
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70 List<LuanJavaFunction> fns = new ArrayList<LuanJavaFunction>();
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71 for( Constructor constructor : constructors ) {
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72 fns.add(new LuanJavaFunction(constructor,null));
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73 }
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74 return new AmbiguousJavaFunction(fns);
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75 }
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76 }
304
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77 /*
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78 } else if( "assert".equals(name) ) {
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79 return new LuanJavaFunction(assertClass,new AssertClass(cls));
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80 */
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81 } else if( "luan_proxy".equals(name) ) {
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82 return new LuanJavaFunction(luan_proxyMethod,st);
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83 } else {
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84 List<Member> members = getStaticMembers(cls,name);
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85 if( !members.isEmpty() ) {
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86 return member(null,members);
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87 }
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88 }
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89 }
208
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90 throw luan.exception("invalid member '"+key+"' for: "+obj);
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91 }
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92 Class cls = obj.getClass();
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93 if( cls.isArray() ) {
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94 if( "length".equals(key) ) {
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95 return Array.getLength(obj);
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96 }
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97 Integer i = Luan.asInteger(key);
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98 if( i != null ) {
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99 return Array.get(obj,i);
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100 }
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101 throw luan.exception("invalid member '"+key+"' for java array: "+obj);
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102 }
208
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103 if( key instanceof String ) {
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104 String name = (String)key;
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105 if( "instanceof".equals(name) ) {
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106 return new LuanJavaFunction(instanceOf,new InstanceOf(obj));
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107 } else {
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108 List<Member> members = getMembers(cls,name);
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109 if( !members.isEmpty() ) {
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110 return member(obj,members);
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111 }
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112 }
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113 }
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114 // throw luan.exception("invalid member '"+key+"' for java object: "+obj);
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115 //System.out.println("invalid member '"+key+"' for java object: "+obj);
208
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116 return null;
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117 }
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118
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119 private static Object member(Object obj,List<Member> members) throws LuanException {
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120 try {
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121 if( members.size()==1 ) {
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122 Member member = members.get(0);
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123 if( member instanceof Static ) {
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124 return member;
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125 } else if( member instanceof Field ) {
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126 Field field = (Field)member;
157
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127 Object rtn = field.get(obj);
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128 return rtn instanceof Object[] ? Arrays.asList((Object[])rtn) : rtn;
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129 } else {
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130 Method method = (Method)member;
297
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131 return new LuanJavaFunction(method,obj);
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132 }
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133 } else {
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134 List<LuanJavaFunction> fns = new ArrayList<LuanJavaFunction>();
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135 for( Member member : members ) {
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136 Method method = (Method)member;
297
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137 fns.add(new LuanJavaFunction(method,obj));
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138 }
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139 return new AmbiguousJavaFunction(fns);
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140 }
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141 } catch(IllegalAccessException e) {
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142 throw new RuntimeException(e);
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143 }
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144 }
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145
404
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146 public static boolean __newindex(LuanState luan,Object obj,Object key,Object value) throws LuanException {
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147 if( !luan.currentEnvironment().hasJava() )
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148 return false;
60
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149 if( obj instanceof Static ) {
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150 if( key instanceof String ) {
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151 String name = (String)key;
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152 Static st = (Static)obj;
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153 Class cls = st.cls;
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154 List<Member> members = getStaticMembers(cls,name);
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155 if( !members.isEmpty() ) {
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156 if( members.size() != 1 )
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157 throw new RuntimeException("not field '"+name+"' of "+obj);
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158 setMember(obj,members,value);
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159 return true;
60
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160 }
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161 }
130
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162 throw luan.exception("invalid member '"+key+"' for: "+obj);
60
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163 }
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164 Class cls = obj.getClass();
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165 if( cls.isArray() ) {
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166 Integer i = Luan.asInteger(key);
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167 if( i != null ) {
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168 Array.set(obj,i,value);
404
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169 return true;
60
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170 }
130
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171 throw luan.exception("invalid member '"+key+"' for java array: "+obj);
60
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172 }
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173 if( key instanceof String ) {
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174 String name = (String)key;
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175 List<Member> members = getMembers(cls,name);
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176 if( !members.isEmpty() ) {
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177 if( members.size() != 1 )
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178 throw new RuntimeException("not field '"+name+"' of "+obj);
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diff changeset
179 setMember(obj,members,value);
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180 return true;
60
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181 }
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182 }
130
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183 throw luan.exception("invalid member '"+key+"' for java object: "+obj);
60
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184 }
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185
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diff changeset
186 private static void setMember(Object obj,List<Member> members,Object value) {
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187 Field field = (Field)members.get(0);
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188 try {
100
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diff changeset
189 try {
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diff changeset
190 field.set(obj,value);
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191 } catch(IllegalArgumentException e) {
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192 Class cls = field.getType();
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diff changeset
193 if( value instanceof Number ) {
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diff changeset
194 Number n = (Number)value;
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diff changeset
195 if( cls.equals(Integer.TYPE) || cls.equals(Integer.class) ) {
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196 int r = n.intValue();
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197 if( r==n.doubleValue() ) {
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diff changeset
198 field.setInt(obj,r);
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199 return;
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200 }
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201 }
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202 }
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203 throw e;
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204 }
60
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205 } catch(IllegalAccessException e) {
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206 throw new RuntimeException(e);
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207 }
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208 }
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209
102
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210 public static boolean privateAccess = false;
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211 private static Map<Class,Map<String,List<Member>>> memberMap = new HashMap<Class,Map<String,List<Member>>>();
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212
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213 private static synchronized List<Member> getMembers(Class cls,String name) {
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214 Map<String,List<Member>> clsMap = memberMap.get(cls);
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215 if( clsMap == null ) {
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216 clsMap = new HashMap<String,List<Member>>();
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217 for( Class c : cls.getClasses() ) {
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218 String s = c.getSimpleName();
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219 List<Member> list = new ArrayList<Member>();
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220 clsMap.put(s,list);
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221 list.add(new Static(c));
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222 }
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223 for( Field field : cls.getFields() ) {
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224 String s = field.getName();
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225 try {
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226 if( !cls.getField(s).equals(field) )
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227 continue; // not accessible
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228 } catch(NoSuchFieldException e) {
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229 throw new RuntimeException(e);
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230 }
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231 List<Member> list = new ArrayList<Member>();
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232 clsMap.put(s,list);
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233 list.add(field);
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234 }
71
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235 for( Method method : cls.getMethods() ) {
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236 String s = method.getName();
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237 List<Member> list = clsMap.get(s);
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238 if( list == null || !(list.get(0) instanceof Method) ) {
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239 list = new ArrayList<Member>();
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240 clsMap.put(s,list);
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241 }
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242 list.add(method);
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243 }
102
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244 if( privateAccess ) {
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245 for( Method method : cls.getDeclaredMethods() ) {
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246 String s = method.getName();
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247 List<Member> list = clsMap.get(s);
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248 if( list == null ) {
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249 list = new ArrayList<Member>();
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250 clsMap.put(s,list);
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251 } else if( !(list.get(0) instanceof Method) )
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252 continue;
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253 if( !list.contains(method) ) {
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254 list.add(method);
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255 }
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256 }
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257 for( Field field : cls.getDeclaredFields() ) {
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258 String s = field.getName();
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259 List<Member> list = clsMap.get(s);
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260 if( list == null ) {
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261 list = new ArrayList<Member>();
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262 clsMap.put(s,list);
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263 list.add(field);
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264 }
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265 }
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266 }
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267 for( List<Member> members : clsMap.values() ) {
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268 for( Member m : members ) {
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269 if( m instanceof AccessibleObject )
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270 ((AccessibleObject)m).setAccessible(true);
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271 }
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272 }
37
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273 memberMap.put(cls,clsMap);
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274 }
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275 List<Member> rtn = clsMap.get(name);
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276 if( rtn==null )
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277 rtn = Collections.emptyList();
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278 return rtn;
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279 }
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280
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281 private static synchronized List<Member> getStaticMembers(Class cls,String name) {
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282 List<Member> staticMembers = new ArrayList<Member>();
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283 for( Member m : getMembers(cls,name) ) {
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284 if( Modifier.isStatic(m.getModifiers()) )
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285 staticMembers.add(m);
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286 }
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287 return staticMembers;
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288 }
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289
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290 static final class Static implements Member {
37
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291 final Class cls;
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292
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293 Static(Class cls) {
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294 this.cls = cls;
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295 }
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296
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297 @Override public String toString() {
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298 return cls.toString();
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299 }
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300
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301 @Override public Class<?> getDeclaringClass() {
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302 return cls.getDeclaringClass();
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parents: 55
diff changeset
303 }
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parents: 55
diff changeset
304
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diff changeset
305 @Override public String getName() {
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diff changeset
306 return cls.getName();
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parents: 55
diff changeset
307 }
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parents: 55
diff changeset
308
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diff changeset
309 @Override public int getModifiers() {
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diff changeset
310 return cls.getModifiers();
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parents: 55
diff changeset
311 }
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parents: 55
diff changeset
312
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diff changeset
313 @Override public boolean isSynthetic() {
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parents: 55
diff changeset
314 return cls.isSynthetic();
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parents: 55
diff changeset
315 }
304
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diff changeset
316
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
317 public Object luan_proxy(final LuanState luan,final LuanTable t,final Object base) throws LuanException {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
318 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
319 cls.getClassLoader(),
03e9cda4748d add JavaLuan.Static.luan_proxy()
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diff changeset
320 new Class[]{cls},
03e9cda4748d add JavaLuan.Static.luan_proxy()
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parents: 301
diff changeset
321 new InvocationHandler() {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
322 public Object invoke(Object proxy,Method method, Object[] args)
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
323 throws Throwable
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
324 {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
325 if( args==null )
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
326 args = new Object[0];
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
327 String name = method.getName();
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
328 Object fnObj = t.get(name);
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
329 if( fnObj==null && base!=null )
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
330 return method.invoke(base,args);
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
331 LuanFunction fn = luan.checkFunction(fnObj);
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
332 return Luan.first(luan.call(fn,name,args));
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>
parents: 301
diff changeset
334 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
335 );
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
336 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
337 }
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
338 private static final Method luan_proxyMethod;
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
339 static {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
340 try {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
341 luan_proxyMethod = Static.class.getMethod("luan_proxy",LuanState.class,LuanTable.class,Object.class);
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
342 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
343 } catch(NoSuchMethodException e) {
03e9cda4748d add JavaLuan.Static.luan_proxy()
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 301
diff changeset
344 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
345 }
37
8a57ebfdfd78 add JavaLib
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diff changeset
346 }
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diff changeset
347
299
a74559240b4f simplify PackageLuan and remove IO loading param
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 297
diff changeset
348 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
349 checkJava(luan);
51
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
350 Class cls;
37
8a57ebfdfd78 add JavaLib
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diff changeset
351 try {
51
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
352 cls = Class.forName(name);
37
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
353 } catch(ClassNotFoundException e) {
51
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
354 try {
28dfd91a816c various small issues
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parents: 50
diff changeset
355 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
356 } catch(ClassNotFoundException e2) {
108
3c404a296995 make Package module more standard;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 102
diff changeset
357 return null;
51
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
358 }
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
359 }
51
28dfd91a816c various small issues
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 50
diff changeset
360 return new Static(cls);
37
8a57ebfdfd78 add JavaLib
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parents:
diff changeset
361 }
300
9fb523472035 add java() to control java access
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 299
diff changeset
362
9fb523472035 add java() to control java access
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 299
diff changeset
363 private static class AmbiguousJavaFunction extends LuanFunction {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
364 private final Map<Integer,List<LuanJavaFunction>> fnMap = new HashMap<Integer,List<LuanJavaFunction>>();
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
365
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
366 AmbiguousJavaFunction(List<LuanJavaFunction> fns) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
367 for( LuanJavaFunction fn : fns ) {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
368 Integer n = fn.getParameterTypes().length;
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
369 List<LuanJavaFunction> list = fnMap.get(n);
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
370 if( list==null ) {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
371 list = new ArrayList<LuanJavaFunction>();
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
372 fnMap.put(n,list);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
373 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
374 list.add(fn);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
375 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
376 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
377
112
f5af13062b10 fix previous rev
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 108
diff changeset
378 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
379 for( LuanJavaFunction fn : fnMap.get(args.length) ) {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
380 try {
55
9381b23ea9e1 various fixes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 51
diff changeset
381 return fn.rawCall(luan,args);
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
382 } catch(IllegalArgumentException e) {}
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
383 }
402
62b457c50594 add stripe;
Franklin Schmidt <fschmidt@gmail.com>
parents: 321
diff changeset
384 throw luan.exception("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
385 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
386 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
387
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
388 private static class InstanceOf {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
389 private final Object obj;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
390
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
391 InstanceOf(Object obj) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
392 this.obj = obj;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
393 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
394
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
395 public boolean instanceOf(Static st) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
396 return st.cls.isInstance(obj);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
397 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
398 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
399 private static final Method instanceOf;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
400 static {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
401 try {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
402 instanceOf = InstanceOf.class.getMethod("instanceOf",Static.class);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
403 instanceOf.setAccessible(true);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
404 } catch(NoSuchMethodException e) {
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405 throw new RuntimeException(e);
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406 }
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407 }
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408
304
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409 /*
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410 private static class AssertClass {
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411 private final Class cls;
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412
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413 AssertClass(Class cls) {
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414 this.cls = cls;
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415 }
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416
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417 public Object assertClass(LuanState luan,Object v) throws LuanException {
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418 if( !cls.isInstance(v) ) {
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419 String got = v.getClass().getSimpleName();
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420 String expected = cls.getSimpleName();
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421 throw luan.exception("bad argument #1 ("+expected+" expected, got "+got+")");
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422 }
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423 return v;
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424 }
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425 }
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426 private static final Method assertClass;
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427 static {
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428 try {
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429 assertClass = AssertClass.class.getMethod("assertClass",LuanState.class,Object.class);
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430 assertClass.setAccessible(true);
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431 } catch(NoSuchMethodException e) {
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432 throw new RuntimeException(e);
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433 }
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434 }
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435
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436
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437 public static Object proxy(final LuanState luan,Static st,final LuanTable t,final Object base) throws LuanException {
61
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438 return Proxy.newProxyInstance(
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439 st.cls.getClassLoader(),
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440 new Class[]{st.cls},
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441 new InvocationHandler() {
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442 public Object invoke(Object proxy,Method method, Object[] args)
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443 throws Throwable
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444 {
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445 if( args==null )
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446 args = new Object[0];
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447 String name = method.getName();
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448 Object fnObj = t.get(name);
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449 if( fnObj==null && base!=null )
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450 return method.invoke(base,args);
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451 LuanFunction fn = luan.checkFunction(fnObj);
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452 return Luan.first(luan.call(fn,name,args));
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453 }
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454 }
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455 );
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456 }
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457 */
301
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458
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459
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460
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461 // security
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462
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463 public interface Security {
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464 public void check(LuanState luan,String name) throws LuanException;
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465 }
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466
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467 private static String SECURITY_KEY = "Java.Security";
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468
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469 private static void check(LuanState luan,String name) throws LuanException {
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470 Security s = (Security)luan.registry().get(SECURITY_KEY);
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471 if( s!=null )
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472 s.check(luan,name);
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473 }
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474
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475 public static void setSecurity(LuanState luan,Security s) {
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476 luan.registry().put(SECURITY_KEY,s);
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477 }
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478
37
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479 }