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annotate src/luan/LuanJavaFunction.java @ 67:8ca58ab6919b

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fix LuanJavaFunction.checkArgs() for nulls git-svn-id: https://luan-java.googlecode.com/svn/trunk@68 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 22 Jan 2013 21:56:05 +0000
parents 177cfdc2bdb3
children 877288464542
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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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43 @Override public String toString() {
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44 return "java-function: " + method;
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45 }
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47 public Class<?>[] getParameterTypes() {
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48 return method.getParameterTypes();
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49 }
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51 @Override public Object[] call(LuanState luan,Object[] args) throws LuanException {
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52 try {
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53 return rawCall(luan,args);
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54 } catch(IllegalArgumentException e) {
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55 checkArgs(luan,args);
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56 throw e;
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57 }
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58 }
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60 public Object[] rawCall(LuanState luan,Object[] args) throws LuanException {
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61 args = fixArgs(luan,args);
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62 Object rtn;
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63 try {
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64 rtn = method.invoke(obj,args);
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65 } catch(IllegalAccessException e) {
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66 throw new RuntimeException(e);
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67 } catch(InvocationTargetException e) {
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68 Throwable cause = e.getCause();
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69 if( cause instanceof Error )
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70 throw (Error)cause;
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71 if( cause instanceof RuntimeException )
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72 throw new LuanException(luan,LuanElement.JAVA,cause);
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73 if( cause instanceof LuanException )
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74 throw (LuanException)cause;
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75 throw new RuntimeException(e);
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76 } catch(InstantiationException e) {
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77 throw new RuntimeException(e);
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78 }
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79 return rtnConverter.convert(rtn);
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80 }
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81
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82 private void checkArgs(LuanState luan,Object[] args) throws LuanException {
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83 Class<?>[] a = getParameterTypes();
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84 if( takesLuaState ) {
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85 Class<?>[] t = new Class<?>[a.length-1];
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86 System.arraycopy(a,1,t,0,t.length);
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87 a = t;
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88 }
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89 for( int i=0; i<a.length; i++ ) {
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90 Class<?> paramType = a[i];
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91 Object arg = args[i];
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92 if( !paramType.isInstance(arg) ) {
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93 String expected = paramType.getSimpleName();
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94 if( arg==null ) {
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95 if( paramType.isPrimitive() )
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96 throw new LuanException(luan,LuanElement.JAVA,"bad argument #"+(i+1)+" ("+expected+" expected, got nil)");
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97 } else {
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98 String got = arg.getClass().getSimpleName();
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99 throw new LuanException(luan,LuanElement.JAVA,"bad argument #"+(i+1)+" ("+expected+" expected, got "+got+")");
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100 }
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101 }
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102 }
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103 }
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104
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105 private Object[] fixArgs(LuanState luan,Object[] args) {
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106 int n = argConverters.length;
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107 Object[] rtn;
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108 int start = 0;
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109 if( !takesLuaState && varArgCls==null && args.length == n ) {
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110 rtn = args;
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111 } else {
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112 if( takesLuaState )
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113 n++;
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114 rtn = new Object[n];
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115 if( takesLuaState ) {
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116 rtn[start++] = luan;
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117 }
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118 n = argConverters.length;
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119 if( varArgCls != null ) {
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120 n--;
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121 if( args.length < argConverters.length ) {
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122 rtn[rtn.length-1] = Array.newInstance(varArgCls,0);
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123 } else {
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124 int len = args.length - n;
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125 Object varArgs = Array.newInstance(varArgCls,len);
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126 ArgConverter ac = argConverters[n];
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127 for( int i=0; i<len; i++ ) {
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128 Array.set( varArgs, i, ac.convert(args[n+i]) );
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129 }
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130 rtn[rtn.length-1] = varArgs;
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131 }
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132 }
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133 System.arraycopy(args,0,rtn,start,Math.min(args.length,n));
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134 }
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135 for( int i=0; i<n; i++ ) {
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136 rtn[start+i] = argConverters[i].convert(rtn[start+i]);
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137 }
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138 return rtn;
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139 }
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140
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141
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142 private interface RtnConverter {
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143 public Object[] convert(Object obj);
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144 }
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145
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146 private static final RtnConverter RTN_EMPTY = new RtnConverter() {
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147 public Object[] convert(Object obj) {
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148 return EMPTY_RTN;
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149 }
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150 };
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151
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152 private static final RtnConverter RTN_ARRAY = new RtnConverter() {
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153 public Object[] convert(Object obj) {
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154 if( obj == null )
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155 return NULL_RTN;
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156 return (Object[])obj;
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157 }
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158 };
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159
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160 private static final RtnConverter RTN_ONE = new RtnConverter() {
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161 public Object[] convert(Object obj) {
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162 return new Object[]{obj};
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163 }
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164 };
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165
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166 private static final Object[] NULL_RTN = new Object[1];
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167
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168 private static final RtnConverter RTN_NUMBER_ARRAY = new RtnConverter() {
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169 public Object[] convert(Object obj) {
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170 if( obj == null )
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171 return NULL_RTN;
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172 Object[] rtn = new Object[Array.getLength(obj)];
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173 for( int i=0; i<rtn.length; i++ ) {
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174 rtn[i] = Array.get(obj,i);
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175 }
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176 return rtn;
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177 }
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178 };
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179
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180 private static RtnConverter getRtnConverter(JavaMethod m) {
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181 Class<?> rtnType = m.getReturnType();
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182 if( rtnType == Void.TYPE )
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183 return RTN_EMPTY;
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184 if( rtnType.isArray() ) {
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185 rtnType = rtnType.getComponentType();
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186 if( isNumber(rtnType) )
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187 return RTN_NUMBER_ARRAY;
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188 return RTN_ARRAY;
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189 }
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190 return RTN_ONE;
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191 }
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192
47
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193 private static boolean isNumber(Class<?> rtnType) {
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194 return rtnType == Byte.TYPE
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195 || rtnType == Short.TYPE
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196 || rtnType == Integer.TYPE
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197 || rtnType == Long.TYPE
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198 || rtnType == Float.TYPE
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199 || rtnType == Double.TYPE
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200 ;
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201 }
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202
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203 private interface ArgConverter {
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204 public Object convert(Object obj);
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205 }
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206
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207 private static final ArgConverter ARG_SAME = new ArgConverter() {
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208 public Object convert(Object obj) {
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parents:
diff changeset
209 return obj;
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210 }
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parents:
diff changeset
211 };
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212
47
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diff changeset
213 private static final ArgConverter ARG_DOUBLE = new ArgConverter() {
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diff changeset
214 public Object convert(Object obj) {
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diff changeset
215 if( obj instanceof Double )
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diff changeset
216 return obj;
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diff changeset
217 if( obj instanceof Number ) {
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diff changeset
218 Number n = (Number)obj;
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diff changeset
219 return n.doubleValue();
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diff changeset
220 }
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diff changeset
221 if( obj instanceof String ) {
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diff changeset
222 String s = (String)obj;
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diff changeset
223 try {
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diff changeset
224 return Double.valueOf(s);
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diff changeset
225 } catch(NumberFormatException e) {}
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diff changeset
226 }
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diff changeset
227 return obj;
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diff changeset
228 }
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diff changeset
229 };
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diff changeset
230
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diff changeset
231 private static final ArgConverter ARG_FLOAT = new ArgConverter() {
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diff changeset
232 public Object convert(Object obj) {
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diff changeset
233 if( obj instanceof Float )
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diff changeset
234 return obj;
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diff changeset
235 if( obj instanceof Number ) {
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diff changeset
236 Number n = (Number)obj;
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diff changeset
237 float r = n.floatValue();
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diff changeset
238 if( r==n.doubleValue() )
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diff changeset
239 return r;
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diff changeset
240 }
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parents: 46
diff changeset
241 if( obj instanceof String ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
242 String s = (String)obj;
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diff changeset
243 try {
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diff changeset
244 return Float.valueOf(s);
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diff changeset
245 } catch(NumberFormatException e) {}
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diff changeset
246 }
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diff changeset
247 return obj;
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diff changeset
248 }
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diff changeset
249 };
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diff changeset
250
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diff changeset
251 private static final ArgConverter ARG_LONG = new ArgConverter() {
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diff changeset
252 public Object convert(Object obj) {
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diff changeset
253 if( obj instanceof Long )
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diff changeset
254 return obj;
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diff changeset
255 if( obj instanceof Number ) {
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diff changeset
256 Number n = (Number)obj;
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diff changeset
257 long r = n.longValue();
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diff changeset
258 if( r==n.doubleValue() )
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diff changeset
259 return r;
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diff changeset
260 }
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diff changeset
261 else if( obj instanceof String ) {
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diff changeset
262 String s = (String)obj;
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diff changeset
263 try {
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diff changeset
264 return Long.valueOf(s);
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diff changeset
265 } catch(NumberFormatException e) {}
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diff changeset
266 }
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diff changeset
267 return obj;
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diff changeset
268 }
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diff changeset
269 };
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diff changeset
270
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diff changeset
271 private static final ArgConverter ARG_INTEGER = new ArgConverter() {
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diff changeset
272 public Object convert(Object obj) {
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diff changeset
273 if( obj instanceof Integer )
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parents: 46
diff changeset
274 return obj;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
275 if( obj instanceof Number ) {
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diff changeset
276 Number n = (Number)obj;
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diff changeset
277 int r = n.intValue();
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parents: 46
diff changeset
278 if( r==n.doubleValue() )
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parents: 46
diff changeset
279 return r;
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diff changeset
280 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
281 else if( obj instanceof String ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
282 String s = (String)obj;
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parents: 46
diff changeset
283 try {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
284 return Integer.valueOf(s);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
285 } catch(NumberFormatException e) {}
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parents: 46
diff changeset
286 }
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diff changeset
287 return obj;
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parents: 46
diff changeset
288 }
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parents: 46
diff changeset
289 };
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parents: 46
diff changeset
290
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
291 private static final ArgConverter ARG_SHORT = new ArgConverter() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
292 public Object convert(Object obj) {
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parents: 46
diff changeset
293 if( obj instanceof Short )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
294 return obj;
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parents: 46
diff changeset
295 if( obj instanceof Number ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
296 Number n = (Number)obj;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
297 short r = n.shortValue();
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
298 if( r==n.doubleValue() )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
299 return r;
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parents: 46
diff changeset
300 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
301 else if( obj instanceof String ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
302 String s = (String)obj;
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parents: 46
diff changeset
303 try {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
304 return Short.valueOf(s);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
305 } catch(NumberFormatException e) {}
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parents: 46
diff changeset
306 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
307 return obj;
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parents: 46
diff changeset
308 }
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parents: 46
diff changeset
309 };
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
310
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
311 private static final ArgConverter ARG_BYTE = new ArgConverter() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
312 public Object convert(Object obj) {
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parents: 46
diff changeset
313 if( obj instanceof Byte )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
314 return obj;
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parents: 46
diff changeset
315 if( obj instanceof Number ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
316 Number n = (Number)obj;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
317 byte r = n.byteValue();
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
318 if( r==n.doubleValue() )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
319 return r;
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320 }
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diff changeset
321 else if( obj instanceof String ) {
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322 String s = (String)obj;
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diff changeset
323 try {
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diff changeset
324 return Byte.valueOf(s);
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diff changeset
325 } catch(NumberFormatException e) {}
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326 }
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327 return obj;
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328 }
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329 };
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330
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331 private static final ArgConverter ARG_TABLE = new ArgConverter() {
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332 public Object convert(Object obj) {
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333 if( obj instanceof List ) {
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diff changeset
334 @SuppressWarnings("unchecked")
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335 List<Object> list = (List<Object>)obj;
48
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diff changeset
336 return new LuanTable(list);
47
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337 }
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diff changeset
338 if( obj instanceof Map ) {
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diff changeset
339 @SuppressWarnings("unchecked")
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diff changeset
340 Map<Object,Object> map = (Map<Object,Object>)obj;
48
64ecb7a3aad7 rename Lua to Luan
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341 return new LuanTable(map);
47
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342 }
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diff changeset
343 if( obj instanceof Set ) {
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344 @SuppressWarnings("unchecked")
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345 Set<Object> set = (Set<Object>)obj;
48
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346 return new LuanTable(set);
47
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347 }
55
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diff changeset
348 Class cls = obj.getClass();
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diff changeset
349 if( cls.isArray() && !cls.getComponentType().isPrimitive() ) {
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diff changeset
350 Object[] a = (Object[])obj;
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diff changeset
351 return new LuanTable(Arrays.asList(a));
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diff changeset
352 }
47
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diff changeset
353 return obj;
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354 }
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diff changeset
355 };
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diff changeset
356
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diff changeset
357 private static final ArgConverter ARG_MAP = new ArgConverter() {
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diff changeset
358 public Object convert(Object obj) {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
359 if( obj instanceof LuanTable ) {
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diff changeset
360 LuanTable t = (LuanTable)obj;
47
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diff changeset
361 return t.asMap();
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diff changeset
362 }
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diff changeset
363 return obj;
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diff changeset
364 }
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diff changeset
365 };
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parents: 46
diff changeset
366
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diff changeset
367 private static final ArgConverter ARG_LIST = new ArgConverter() {
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diff changeset
368 public Object convert(Object obj) {
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
369 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
370 LuanTable t = (LuanTable)obj;
47
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diff changeset
371 if( t.isList() )
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diff changeset
372 return t.asList();
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diff changeset
373 }
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diff changeset
374 return obj;
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diff changeset
375 }
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diff changeset
376 };
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parents: 46
diff changeset
377
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parents: 46
diff changeset
378 private static final ArgConverter ARG_SET = new ArgConverter() {
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parents: 46
diff changeset
379 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
380 if( obj instanceof LuanTable ) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
381 LuanTable t = (LuanTable)obj;
47
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parents: 46
diff changeset
382 if( t.isSet() )
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diff changeset
383 return t.asSet();
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parents: 46
diff changeset
384 }
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diff changeset
385 return obj;
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diff changeset
386 }
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parents: 46
diff changeset
387 };
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parents: 46
diff changeset
388
57
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
389 private static class ArgArray implements ArgConverter {
19ca9c4c6c7f auto-convert table to java array
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parents: 56
diff changeset
390 private final Object[] a;
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parents: 56
diff changeset
391
19ca9c4c6c7f auto-convert table to java array
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parents: 56
diff changeset
392 ArgArray(Class cls) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
393 a = (Object[])Array.newInstance(cls.getComponentType(),0);
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parents: 56
diff changeset
394 }
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parents: 56
diff changeset
395
19ca9c4c6c7f auto-convert table to java array
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parents: 56
diff changeset
396 public Object convert(Object obj) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
397 if( obj instanceof LuanTable ) {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
398 LuanTable t = (LuanTable)obj;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
399 if( t.isList() ) {
19ca9c4c6c7f auto-convert table to java array
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parents: 56
diff changeset
400 try {
19ca9c4c6c7f auto-convert table to java array
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parents: 56
diff changeset
401 return t.asList().toArray(a);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
402 } catch(ArrayStoreException e) {}
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
403 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
404 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
405 return obj;
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
406 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
407 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
408
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
409 private static boolean takesLuaState(JavaMethod m) {
21
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
410 Class<?>[] paramTypes = m.getParameterTypes();
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
411 return paramTypes.length > 0 && paramTypes[0].equals(LuanState.class);
21
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
412 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
413
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
414 private static ArgConverter[] getArgConverters(boolean takesLuaState,JavaMethod m) {
4
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
415 final boolean isVarArgs = m.isVarArgs();
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
416 Class<?>[] paramTypes = m.getParameterTypes();
21
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
417 if( takesLuaState ) {
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
418 Class<?>[] t = new Class<?>[paramTypes.length-1];
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
419 System.arraycopy(paramTypes,1,t,0,t.length);
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
420 paramTypes = t;
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
421 }
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
422 ArgConverter[] a = new ArgConverter[paramTypes.length];
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
423 for( int i=0; i<a.length; i++ ) {
4
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
424 Class<?> paramType = paramTypes[i];
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
425 if( isVarArgs && i == a.length-1 )
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
426 paramType = paramType.getComponentType();
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
427 a[i] = getArgConverter(paramType);
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
428 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
429 return a;
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
430 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
431
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
432 private static ArgConverter getArgConverter(Class<?> cls) {
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
433 if( cls == Double.TYPE || cls.equals(Double.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
434 return ARG_DOUBLE;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
435 if( cls == Float.TYPE || cls.equals(Float.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
436 return ARG_FLOAT;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
437 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
438 return ARG_LONG;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
439 if( cls == Integer.TYPE || cls.equals(Integer.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
440 return ARG_INTEGER;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
441 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
442 return ARG_SHORT;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
443 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
444 return ARG_BYTE;
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
445 if( cls.equals(LuanTable.class) )
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
446 return ARG_TABLE;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
447 if( cls.equals(Map.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
448 return ARG_MAP;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
449 if( cls.equals(List.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
450 return ARG_LIST;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
451 if( cls.equals(Set.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
452 return ARG_SET;
57
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
453 if( cls.isArray() && !cls.getComponentType().isPrimitive() )
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
454 return new ArgArray(cls);
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
455 return ARG_SAME;
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
456 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
457
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
458
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
459
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
460 private static abstract class JavaMethod {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
461 abstract boolean isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
462 abstract Class<?>[] getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
463 abstract Object invoke(Object obj,Object... args)
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
464 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
465 abstract Class<?> getReturnType();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
466
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
467 static JavaMethod of(final Method m) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
468 return new JavaMethod() {
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
469 @Override boolean isVarArgs() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
470 return m.isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
471 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
472 @Override Class<?>[] getParameterTypes() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
473 return m.getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
474 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
475 @Override Object invoke(Object obj,Object... args)
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
476 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
477 {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
478 return m.invoke(obj,args);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
479 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
480 @Override Class<?> getReturnType() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
481 return m.getReturnType();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
482 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
483 @Override public String toString() {
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
484 return m.toString();
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
485 }
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
486 };
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
487 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
488
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
489 static JavaMethod of(final Constructor c) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
490 return new JavaMethod() {
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
491 @Override boolean isVarArgs() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
492 return c.isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
493 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
494 @Override Class<?>[] getParameterTypes() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
495 return c.getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
496 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
497 @Override Object invoke(Object obj,Object... args)
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
498 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
499 {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
500 return c.newInstance(args);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
501 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
502 @Override Class<?> getReturnType() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
503 return c.getDeclaringClass();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
504 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
505 @Override public String toString() {
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
506 return c.toString();
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
507 }
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
508 };
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
509 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
510
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
511 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
512
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
513 }