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annotate src/luan/LuanJavaFunction.java @ 55:9381b23ea9e1

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various fixes git-svn-id: https://luan-java.googlecode.com/svn/trunk@56 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 04 Jan 2013 04:50:18 +0000
parents 8ede219cd111
children c84274b18f0c
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan;
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3 import java.lang.reflect.Array;
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4 import java.lang.reflect.Method;
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5 import java.lang.reflect.Constructor;
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6 import java.lang.reflect.InvocationTargetException;
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7 import java.util.List;
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8 import java.util.Map;
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9 import java.util.Set;
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10 import java.util.Arrays;
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13 public final class LuanJavaFunction extends LuanFunction {
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14 private final JavaMethod method;
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15 private final Object obj;
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16 private final RtnConverter rtnConverter;
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17 private final boolean takesLuaState;
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18 private final ArgConverter[] argConverters;
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19 private final Class<?> varArgCls;
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21 public LuanJavaFunction(Method method,Object obj) {
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22 this( JavaMethod.of(method), obj );
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23 }
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25 public LuanJavaFunction(Constructor constr,Object obj) {
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26 this( JavaMethod.of(constr), obj );
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27 }
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29 LuanJavaFunction(JavaMethod method,Object obj) {
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30 this.method = method;
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31 this.obj = obj;
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32 this.rtnConverter = getRtnConverter(method);
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33 this.takesLuaState = takesLuaState(method);
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34 this.argConverters = getArgConverters(takesLuaState,method);
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35 if( method.isVarArgs() ) {
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36 Class<?>[] paramTypes = method.getParameterTypes();
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37 this.varArgCls = paramTypes[paramTypes.length-1].getComponentType();
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38 } else {
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39 this.varArgCls = null;
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40 }
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41 }
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42
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43 public Class<?>[] getParameterTypes() {
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44 return method.getParameterTypes();
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45 }
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47 @Override public Object[] call(LuanState luan,Object[] args) throws LuanException {
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48 try {
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49 return rawCall(luan,args);
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50 } catch(IllegalArgumentException e) {
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51 checkArgs(luan,args);
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52 throw e;
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53 }
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54 }
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56 public Object[] rawCall(LuanState luan,Object[] args) throws LuanException {
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57 args = fixArgs(luan,args);
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58 Object rtn;
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59 try {
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60 rtn = method.invoke(obj,args);
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61 } catch(IllegalAccessException e) {
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62 throw new RuntimeException(e);
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63 } catch(InvocationTargetException e) {
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64 Throwable cause = e.getCause();
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65 if( cause instanceof Error )
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66 throw (Error)cause;
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67 if( cause instanceof RuntimeException )
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68 throw (RuntimeException)cause;
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69 if( cause instanceof LuanException )
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70 throw (LuanException)cause;
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71 throw new RuntimeException(e);
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72 } catch(InstantiationException e) {
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73 throw new RuntimeException(e);
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74 }
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75 return rtnConverter.convert(rtn);
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76 }
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77
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78 private void checkArgs(LuanState luan,Object[] args) throws LuanException {
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79 Class<?>[] a = getParameterTypes();
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80 for( int i=0; i<a.length; i++ ) {
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81 if( !a[i].isInstance(args[i]) ) {
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82 String got = args[i].getClass().getName();
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83 String expected = a[i].getName();
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84 if( !takesLuaState )
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85 i++;
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86 throw new LuanException(luan,LuanElement.JAVA,"bad argument #"+i+" ("+expected+" expected, got "+got+")");
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87 }
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88 }
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89 }
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90
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91 private Object[] fixArgs(LuanState luan,Object[] args) {
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92 int n = argConverters.length;
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93 Object[] rtn;
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94 int start = 0;
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95 if( !takesLuaState && varArgCls==null && args.length == n ) {
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96 rtn = args;
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97 } else {
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98 if( takesLuaState )
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99 n++;
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100 rtn = new Object[n];
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101 if( takesLuaState ) {
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102 rtn[start++] = luan;
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103 }
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104 n = argConverters.length;
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105 if( varArgCls != null ) {
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106 n--;
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107 if( args.length < argConverters.length ) {
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108 rtn[rtn.length-1] = Array.newInstance(varArgCls,0);
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109 } else {
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110 int len = args.length - n;
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111 Object varArgs = Array.newInstance(varArgCls,len);
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112 ArgConverter ac = argConverters[n];
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113 for( int i=0; i<len; i++ ) {
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114 Array.set( varArgs, i, ac.convert(args[n+i]) );
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115 }
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116 rtn[rtn.length-1] = varArgs;
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117 }
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118 }
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119 System.arraycopy(args,0,rtn,start,Math.min(args.length,n));
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120 }
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121 for( int i=0; i<n; i++ ) {
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122 rtn[start+i] = argConverters[i].convert(rtn[start+i]);
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123 }
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124 return rtn;
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125 }
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126
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127
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128 private interface RtnConverter {
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129 public Object[] convert(Object obj);
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130 }
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131
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132 private static final RtnConverter RTN_EMPTY = new RtnConverter() {
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133 public Object[] convert(Object obj) {
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134 return EMPTY_RTN;
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135 }
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136 };
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137
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138 private static final RtnConverter RTN_ARRAY = new RtnConverter() {
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139 public Object[] convert(Object obj) {
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140 if( obj == null )
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141 return NULL_RTN;
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142 return (Object[])obj;
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143 }
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144 };
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145
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146 private static final RtnConverter RTN_ONE = new RtnConverter() {
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147 public Object[] convert(Object obj) {
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148 return new Object[]{obj};
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149 }
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150 };
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151
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152 private static final Object[] NULL_RTN = new Object[1];
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153
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154 private static final RtnConverter RTN_NUMBER_ARRAY = new RtnConverter() {
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155 public Object[] convert(Object obj) {
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156 if( obj == null )
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157 return NULL_RTN;
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158 Object[] rtn = new Object[Array.getLength(obj)];
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159 for( int i=0; i<rtn.length; i++ ) {
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160 rtn[i] = Array.get(obj,i);
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161 }
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162 return rtn;
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163 }
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164 };
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165
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166 private static RtnConverter getRtnConverter(JavaMethod m) {
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167 Class<?> rtnType = m.getReturnType();
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168 if( rtnType == Void.TYPE )
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169 return RTN_EMPTY;
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170 if( rtnType.isArray() ) {
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171 rtnType = rtnType.getComponentType();
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172 if( isNumber(rtnType) )
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173 return RTN_NUMBER_ARRAY;
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174 return RTN_ARRAY;
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175 }
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176 return RTN_ONE;
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177 }
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178
47
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179 private static boolean isNumber(Class<?> rtnType) {
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180 return rtnType == Byte.TYPE
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181 || rtnType == Short.TYPE
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182 || rtnType == Integer.TYPE
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183 || rtnType == Long.TYPE
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184 || rtnType == Float.TYPE
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185 || rtnType == Double.TYPE
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186 ;
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187 }
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188
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189 private interface ArgConverter {
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190 public Object convert(Object obj);
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191 }
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192
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193 private static final ArgConverter ARG_SAME = new ArgConverter() {
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194 public Object convert(Object obj) {
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195 return obj;
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196 }
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197 };
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198
47
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199 private static final ArgConverter ARG_DOUBLE = new ArgConverter() {
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200 public Object convert(Object obj) {
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201 if( obj instanceof Double )
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202 return obj;
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203 if( obj instanceof Number ) {
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204 Number n = (Number)obj;
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205 return n.doubleValue();
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206 }
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207 if( obj instanceof String ) {
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208 String s = (String)obj;
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diff changeset
209 try {
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diff changeset
210 return Double.valueOf(s);
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diff changeset
211 } catch(NumberFormatException e) {}
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diff changeset
212 }
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diff changeset
213 return obj;
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214 }
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diff changeset
215 };
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216
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diff changeset
217 private static final ArgConverter ARG_FLOAT = new ArgConverter() {
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diff changeset
218 public Object convert(Object obj) {
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219 if( obj instanceof Float )
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220 return obj;
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diff changeset
221 if( obj instanceof Number ) {
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diff changeset
222 Number n = (Number)obj;
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diff changeset
223 float r = n.floatValue();
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diff changeset
224 if( r==n.doubleValue() )
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diff changeset
225 return r;
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226 }
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diff changeset
227 if( obj instanceof String ) {
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228 String s = (String)obj;
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diff changeset
229 try {
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diff changeset
230 return Float.valueOf(s);
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diff changeset
231 } catch(NumberFormatException e) {}
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diff changeset
232 }
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233 return obj;
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234 }
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diff changeset
235 };
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236
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diff changeset
237 private static final ArgConverter ARG_LONG = new ArgConverter() {
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diff changeset
238 public Object convert(Object obj) {
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diff changeset
239 if( obj instanceof Long )
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diff changeset
240 return obj;
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diff changeset
241 if( obj instanceof Number ) {
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diff changeset
242 Number n = (Number)obj;
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diff changeset
243 long r = n.longValue();
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diff changeset
244 if( r==n.doubleValue() )
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diff changeset
245 return r;
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246 }
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diff changeset
247 else if( obj instanceof String ) {
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diff changeset
248 String s = (String)obj;
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diff changeset
249 try {
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diff changeset
250 return Long.valueOf(s);
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diff changeset
251 } catch(NumberFormatException e) {}
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diff changeset
252 }
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253 return obj;
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254 }
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diff changeset
255 };
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diff changeset
256
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diff changeset
257 private static final ArgConverter ARG_INTEGER = new ArgConverter() {
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diff changeset
258 public Object convert(Object obj) {
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diff changeset
259 if( obj instanceof Integer )
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diff changeset
260 return obj;
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diff changeset
261 if( obj instanceof Number ) {
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diff changeset
262 Number n = (Number)obj;
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diff changeset
263 int r = n.intValue();
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diff changeset
264 if( r==n.doubleValue() )
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diff changeset
265 return r;
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diff changeset
266 }
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diff changeset
267 else if( obj instanceof String ) {
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diff changeset
268 String s = (String)obj;
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diff changeset
269 try {
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diff changeset
270 return Integer.valueOf(s);
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diff changeset
271 } catch(NumberFormatException e) {}
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diff changeset
272 }
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diff changeset
273 return obj;
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diff changeset
274 }
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diff changeset
275 };
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diff changeset
276
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diff changeset
277 private static final ArgConverter ARG_SHORT = new ArgConverter() {
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diff changeset
278 public Object convert(Object obj) {
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diff changeset
279 if( obj instanceof Short )
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diff changeset
280 return obj;
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diff changeset
281 if( obj instanceof Number ) {
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diff changeset
282 Number n = (Number)obj;
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diff changeset
283 short r = n.shortValue();
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diff changeset
284 if( r==n.doubleValue() )
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diff changeset
285 return r;
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diff changeset
286 }
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diff changeset
287 else if( obj instanceof String ) {
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diff changeset
288 String s = (String)obj;
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diff changeset
289 try {
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diff changeset
290 return Short.valueOf(s);
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diff changeset
291 } catch(NumberFormatException e) {}
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diff changeset
292 }
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diff changeset
293 return obj;
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diff changeset
294 }
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diff changeset
295 };
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diff changeset
296
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diff changeset
297 private static final ArgConverter ARG_BYTE = new ArgConverter() {
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diff changeset
298 public Object convert(Object obj) {
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diff changeset
299 if( obj instanceof Byte )
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diff changeset
300 return obj;
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diff changeset
301 if( obj instanceof Number ) {
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diff changeset
302 Number n = (Number)obj;
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diff changeset
303 byte r = n.byteValue();
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diff changeset
304 if( r==n.doubleValue() )
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diff changeset
305 return r;
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diff changeset
306 }
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parents: 46
diff changeset
307 else if( obj instanceof String ) {
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diff changeset
308 String s = (String)obj;
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diff changeset
309 try {
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diff changeset
310 return Byte.valueOf(s);
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diff changeset
311 } catch(NumberFormatException e) {}
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diff changeset
312 }
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diff changeset
313 return obj;
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diff changeset
314 }
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diff changeset
315 };
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diff changeset
316
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diff changeset
317 private static final ArgConverter ARG_TABLE = new ArgConverter() {
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diff changeset
318 public Object convert(Object obj) {
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diff changeset
319 if( obj instanceof List ) {
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diff changeset
320 @SuppressWarnings("unchecked")
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diff changeset
321 List<Object> list = (List<Object>)obj;
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
322 return new LuanTable(list);
47
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diff changeset
323 }
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diff changeset
324 if( obj instanceof Map ) {
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diff changeset
325 @SuppressWarnings("unchecked")
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parents: 46
diff changeset
326 Map<Object,Object> map = (Map<Object,Object>)obj;
48
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diff changeset
327 return new LuanTable(map);
47
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diff changeset
328 }
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diff changeset
329 if( obj instanceof Set ) {
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diff changeset
330 @SuppressWarnings("unchecked")
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diff changeset
331 Set<Object> set = (Set<Object>)obj;
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diff changeset
332 return new LuanTable(set);
47
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diff changeset
333 }
55
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diff changeset
334 Class cls = obj.getClass();
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parents: 49
diff changeset
335 if( cls.isArray() && !cls.getComponentType().isPrimitive() ) {
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parents: 49
diff changeset
336 Object[] a = (Object[])obj;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 49
diff changeset
337 return new LuanTable(Arrays.asList(a));
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parents: 49
diff changeset
338 }
47
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diff changeset
339 return obj;
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340 }
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diff changeset
341 };
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diff changeset
342
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diff changeset
343 private static final ArgConverter ARG_MAP = new ArgConverter() {
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diff changeset
344 public Object convert(Object obj) {
48
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diff changeset
345 if( obj instanceof LuanTable ) {
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diff changeset
346 LuanTable t = (LuanTable)obj;
47
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diff changeset
347 return t.asMap();
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diff changeset
348 }
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diff changeset
349 return obj;
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diff changeset
350 }
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diff changeset
351 };
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diff changeset
352
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diff changeset
353 private static final ArgConverter ARG_LIST = new ArgConverter() {
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diff changeset
354 public Object convert(Object obj) {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
355 if( obj instanceof LuanTable ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
356 LuanTable t = (LuanTable)obj;
47
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diff changeset
357 if( t.isList() )
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diff changeset
358 return t.asList();
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diff changeset
359 }
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diff changeset
360 return obj;
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diff changeset
361 }
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diff changeset
362 };
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diff changeset
363
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
364 private static final ArgConverter ARG_SET = new ArgConverter() {
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parents: 46
diff changeset
365 public Object convert(Object obj) {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
366 if( obj instanceof LuanTable ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
367 LuanTable t = (LuanTable)obj;
47
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parents: 46
diff changeset
368 if( t.isSet() )
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diff changeset
369 return t.asSet();
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diff changeset
370 }
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diff changeset
371 return obj;
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parents: 46
diff changeset
372 }
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diff changeset
373 };
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parents: 46
diff changeset
374
37
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
375 private static boolean takesLuaState(JavaMethod m) {
21
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
376 Class<?>[] paramTypes = m.getParameterTypes();
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
377 return paramTypes.length > 0 && paramTypes[0].equals(LuanState.class);
21
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
378 }
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diff changeset
379
37
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diff changeset
380 private static ArgConverter[] getArgConverters(boolean takesLuaState,JavaMethod m) {
4
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
381 final boolean isVarArgs = m.isVarArgs();
1
2df768b926aa start Luan
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diff changeset
382 Class<?>[] paramTypes = m.getParameterTypes();
21
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
383 if( takesLuaState ) {
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parents: 12
diff changeset
384 Class<?>[] t = new Class<?>[paramTypes.length-1];
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
385 System.arraycopy(paramTypes,1,t,0,t.length);
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diff changeset
386 paramTypes = t;
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parents: 12
diff changeset
387 }
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
388 ArgConverter[] a = new ArgConverter[paramTypes.length];
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
389 for( int i=0; i<a.length; i++ ) {
4
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
390 Class<?> paramType = paramTypes[i];
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
391 if( isVarArgs && i == a.length-1 )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
392 paramType = paramType.getComponentType();
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
393 a[i] = getArgConverter(paramType);
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2df768b926aa start Luan
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diff changeset
394 }
2df768b926aa start Luan
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diff changeset
395 return a;
2df768b926aa start Luan
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parents:
diff changeset
396 }
2df768b926aa start Luan
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parents:
diff changeset
397
2df768b926aa start Luan
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parents:
diff changeset
398 private static ArgConverter getArgConverter(Class<?> cls) {
47
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
399 if( cls == Double.TYPE || cls.equals(Double.class) )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
400 return ARG_DOUBLE;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
401 if( cls == Float.TYPE || cls.equals(Float.class) )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
402 return ARG_FLOAT;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
403 if( cls == Long.TYPE || cls.equals(Long.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
404 return ARG_LONG;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
405 if( cls == Integer.TYPE || cls.equals(Integer.class) )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
406 return ARG_INTEGER;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
407 if( cls == Short.TYPE || cls.equals(Short.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
408 return ARG_SHORT;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
409 if( cls == Byte.TYPE || cls.equals(Byte.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
410 return ARG_BYTE;
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
411 if( cls.equals(LuanTable.class) )
47
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
412 return ARG_TABLE;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
413 if( cls.equals(Map.class) )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
414 return ARG_MAP;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
415 if( cls.equals(List.class) )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
416 return ARG_LIST;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
417 if( cls.equals(Set.class) )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
418 return ARG_SET;
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
419 return ARG_SAME;
2df768b926aa start Luan
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parents:
diff changeset
420 }
2df768b926aa start Luan
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parents:
diff changeset
421
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
422
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
423
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
424 private static abstract class JavaMethod {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
425 abstract boolean isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
426 abstract Class<?>[] getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
427 abstract Object invoke(Object obj,Object... args)
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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428 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException;
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429 abstract Class<?> getReturnType();
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430
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431 static JavaMethod of(final Method m) {
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432 return new JavaMethod() {
43
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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433 @Override boolean isVarArgs() {
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434 return m.isVarArgs();
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435 }
43
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436 @Override Class<?>[] getParameterTypes() {
37
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437 return m.getParameterTypes();
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438 }
43
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439 @Override Object invoke(Object obj,Object... args)
37
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440 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException
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441 {
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442 return m.invoke(obj,args);
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443 }
43
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444 @Override Class<?> getReturnType() {
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445 return m.getReturnType();
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446 }
43
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447 @Override public String toString() {
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448 return m.toString();
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449 }
37
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450 };
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451 }
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452
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diff changeset
453 static JavaMethod of(final Constructor c) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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454 return new JavaMethod() {
43
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455 @Override boolean isVarArgs() {
37
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456 return c.isVarArgs();
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457 }
43
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458 @Override Class<?>[] getParameterTypes() {
37
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diff changeset
459 return c.getParameterTypes();
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460 }
43
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diff changeset
461 @Override Object invoke(Object obj,Object... args)
37
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diff changeset
462 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
463 {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
464 return c.newInstance(args);
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465 }
43
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diff changeset
466 @Override Class<?> getReturnType() {
37
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467 return c.getDeclaringClass();
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468 }
43
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diff changeset
469 @Override public String toString() {
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470 return c.toString();
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471 }
37
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472 };
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473 }
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474
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diff changeset
475 }
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diff changeset
476
1
2df768b926aa start Luan
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477 }