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annotate src/luan/LuanJavaFunction.java @ 98:3a0ff21f0c96

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fix LuanJavaFunction.ARG_FLOAT git-svn-id: https://luan-java.googlecode.com/svn/trunk@99 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 22 Mar 2013 15:23:29 +0000
parents 9aa7d5f20333
children 2428ecfed375
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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.HashMap;
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10 import java.util.Set;
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11 import java.util.Arrays;
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14 public final class LuanJavaFunction extends LuanFunction {
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15 private final JavaMethod method;
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16 private final Object obj;
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17 private final RtnConverter rtnConverter;
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18 private final boolean takesLuaState;
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19 private final ArgConverter[] argConverters;
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20 private final Class<?> varArgCls;
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22 public LuanJavaFunction(Method method,Object obj) {
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23 this( JavaMethod.of(method), obj );
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24 }
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26 public LuanJavaFunction(Constructor constr,Object obj) {
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27 this( JavaMethod.of(constr), obj );
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28 }
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30 LuanJavaFunction(JavaMethod method,Object obj) {
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31 this.method = method;
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32 this.obj = obj;
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33 this.rtnConverter = getRtnConverter(method);
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34 this.takesLuaState = takesLuaState(method);
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35 this.argConverters = getArgConverters(takesLuaState,method);
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36 if( method.isVarArgs() ) {
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37 Class<?>[] paramTypes = method.getParameterTypes();
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38 this.varArgCls = paramTypes[paramTypes.length-1].getComponentType();
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39 } else {
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40 this.varArgCls = null;
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41 }
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42 }
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44 @Override public String toString() {
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45 return "java-function: " + method;
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46 }
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48 public Class<?>[] getParameterTypes() {
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49 return method.getParameterTypes();
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50 }
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52 @Override public Object[] call(LuanState luan,Object[] args) throws LuanException {
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53 args = fixArgs(luan,args);
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54 try {
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55 return doCall(luan,args);
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56 } catch(IllegalArgumentException e) {
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57 checkArgs(luan,args);
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58 throw e;
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59 }
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60 }
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62 public Object[] rawCall(LuanState luan,Object[] args) throws LuanException {
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63 args = fixArgs(luan,args);
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64 return doCall(luan,args);
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65 }
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66
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67 private Object[] doCall(LuanState luan,Object[] args) throws LuanException {
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68 Object rtn;
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69 try {
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70 rtn = method.invoke(obj,args);
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71 } catch(IllegalAccessException e) {
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72 throw new RuntimeException(e);
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73 } catch(InvocationTargetException e) {
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74 Throwable cause = e.getCause();
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75 if( cause instanceof Error )
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76 throw (Error)cause;
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77 if( cause instanceof RuntimeException )
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78 throw luan.JAVA.exception(cause);
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79 if( cause instanceof LuanException )
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80 throw (LuanException)cause;
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81 throw new RuntimeException(e);
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82 } catch(InstantiationException e) {
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83 throw new RuntimeException(e);
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84 }
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85 return rtnConverter.convert(rtn);
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86 }
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87
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88 private static final Map<Class,Class> primitiveMap = new HashMap<Class,Class>();
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89 static {
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90 primitiveMap.put(Boolean.TYPE,Boolean.class);
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91 primitiveMap.put(Character.TYPE,Character.class);
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92 primitiveMap.put(Byte.TYPE,Byte.class);
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93 primitiveMap.put(Short.TYPE,Short.class);
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94 primitiveMap.put(Integer.TYPE,Integer.class);
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95 primitiveMap.put(Long.TYPE,Long.class);
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96 primitiveMap.put(Float.TYPE,Float.class);
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97 primitiveMap.put(Double.TYPE,Double.class);
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98 primitiveMap.put(Void.TYPE,Void.class);
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99 }
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100
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101 private void checkArgs(LuanState luan,Object[] args) throws LuanException {
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102 Class<?>[] a = getParameterTypes();
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103 int start = takesLuaState ? 1 : 0;
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104 for( int i=start; i<a.length; i++ ) {
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105 Class<?> paramType = a[i];
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106 Class<?> type = paramType;
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107 if( type.isPrimitive() )
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108 type = primitiveMap.get(type);
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109 Object arg = args[i];
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110 if( !type.isInstance(arg) ) {
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111 String expected = paramType.getSimpleName();
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112 if( arg==null ) {
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113 if( paramType.isPrimitive() )
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114 throw luan.JAVA.exception("bad argument #"+(i+1-start)+" ("+expected+" expected, got nil)");
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115 } else {
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116 String got = arg.getClass().getSimpleName();
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117 throw luan.JAVA.exception("bad argument #"+(i+1-start)+" ("+expected+" expected, got "+got+")");
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118 }
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119 }
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120 }
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121 }
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122
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123 private Object[] fixArgs(LuanState luan,Object[] args) {
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124 int n = argConverters.length;
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125 Object[] rtn;
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126 int start = 0;
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127 if( !takesLuaState && varArgCls==null && args.length == n ) {
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128 rtn = args;
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129 } else {
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130 if( takesLuaState )
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131 n++;
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132 rtn = new Object[n];
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133 if( takesLuaState ) {
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134 rtn[start++] = luan;
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135 }
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136 n = argConverters.length;
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137 if( varArgCls != null ) {
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138 n--;
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139 if( args.length < argConverters.length ) {
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140 rtn[rtn.length-1] = Array.newInstance(varArgCls,0);
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141 } else {
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142 int len = args.length - n;
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143 Object varArgs = Array.newInstance(varArgCls,len);
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144 ArgConverter ac = argConverters[n];
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145 for( int i=0; i<len; i++ ) {
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146 Array.set( varArgs, i, ac.convert(args[n+i]) );
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147 }
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148 rtn[rtn.length-1] = varArgs;
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149 }
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150 }
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151 System.arraycopy(args,0,rtn,start,Math.min(args.length,n));
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152 }
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153 for( int i=0; i<n; i++ ) {
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154 rtn[start+i] = argConverters[i].convert(rtn[start+i]);
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155 }
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156 return rtn;
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157 }
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158
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159
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160 private interface RtnConverter {
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161 public Object[] convert(Object obj);
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162 }
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163
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164 private static final RtnConverter RTN_EMPTY = new RtnConverter() {
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165 public Object[] convert(Object obj) {
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166 return EMPTY;
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167 }
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168 };
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169
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170 private static final RtnConverter RTN_ARRAY = new RtnConverter() {
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171 public Object[] convert(Object obj) {
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172 if( obj == null )
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173 return NULL_RTN;
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174 return (Object[])obj;
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175 }
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176 };
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177
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178 private static final RtnConverter RTN_ONE = new RtnConverter() {
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179 public Object[] convert(Object obj) {
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180 return new Object[]{obj};
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181 }
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182 };
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183
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184 private static final Object[] NULL_RTN = new Object[1];
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185
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186 private static final RtnConverter RTN_NUMBER_ARRAY = new RtnConverter() {
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187 public Object[] convert(Object obj) {
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188 if( obj == null )
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189 return NULL_RTN;
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190 Object[] rtn = new Object[Array.getLength(obj)];
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191 for( int i=0; i<rtn.length; i++ ) {
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192 rtn[i] = Array.get(obj,i);
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193 }
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194 return rtn;
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195 }
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196 };
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197
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diff changeset
198 private static RtnConverter getRtnConverter(JavaMethod m) {
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199 Class<?> rtnType = m.getReturnType();
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200 if( rtnType == Void.TYPE )
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201 return RTN_EMPTY;
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202 if( rtnType.isArray() ) {
47
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203 rtnType = rtnType.getComponentType();
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204 if( isNumber(rtnType) )
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205 return RTN_NUMBER_ARRAY;
43
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206 return RTN_ARRAY;
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207 }
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208 return RTN_ONE;
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209 }
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210
47
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211 private static boolean isNumber(Class<?> rtnType) {
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212 return rtnType == Byte.TYPE
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213 || rtnType == Short.TYPE
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214 || rtnType == Integer.TYPE
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215 || rtnType == Long.TYPE
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216 || rtnType == Float.TYPE
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217 || rtnType == Double.TYPE
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218 ;
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219 }
1
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220
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221 private interface ArgConverter {
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222 public Object convert(Object obj);
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223 }
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224
2df768b926aa start Luan
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225 private static final ArgConverter ARG_SAME = new ArgConverter() {
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226 public Object convert(Object obj) {
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227 return obj;
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228 }
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229 };
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230
95
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231 private static final ArgConverter ARG_BOOLEAN = new ArgConverter() {
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232 public Object convert(Object obj) {
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233 return Luan.toBoolean(obj);
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234 }
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235 };
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236
9aa7d5f20333 in LuanJavaFunction, fix primitive type checking and add boolean conversion
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237 private static final ArgConverter ARG_BOOLEAN_OBJ = new ArgConverter() {
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diff changeset
238 public Object convert(Object obj) {
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diff changeset
239 return obj==null ? null : Luan.toBoolean(obj);
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240 }
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diff changeset
241 };
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diff changeset
242
47
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diff changeset
243 private static final ArgConverter ARG_DOUBLE = new ArgConverter() {
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244 public Object convert(Object obj) {
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245 if( obj instanceof Double )
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246 return obj;
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247 if( obj instanceof Number ) {
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248 Number n = (Number)obj;
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249 return n.doubleValue();
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250 }
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251 if( obj instanceof String ) {
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diff changeset
252 String s = (String)obj;
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diff changeset
253 try {
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254 return Double.valueOf(s);
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255 } catch(NumberFormatException e) {}
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256 }
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257 return obj;
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258 }
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259 };
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260
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diff changeset
261 private static final ArgConverter ARG_FLOAT = new ArgConverter() {
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diff changeset
262 public Object convert(Object obj) {
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diff changeset
263 if( obj instanceof Float )
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264 return obj;
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265 if( obj instanceof Number ) {
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diff changeset
266 Number n = (Number)obj;
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diff changeset
267 return n.floatValue();
47
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diff changeset
268 }
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diff changeset
269 if( obj instanceof String ) {
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270 String s = (String)obj;
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diff changeset
271 try {
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272 return Float.valueOf(s);
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273 } catch(NumberFormatException e) {}
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274 }
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275 return obj;
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276 }
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diff changeset
277 };
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diff changeset
278
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diff changeset
279 private static final ArgConverter ARG_LONG = new ArgConverter() {
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diff changeset
280 public Object convert(Object obj) {
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diff changeset
281 if( obj instanceof Long )
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282 return obj;
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diff changeset
283 if( obj instanceof Number ) {
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diff changeset
284 Number n = (Number)obj;
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diff changeset
285 long r = n.longValue();
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diff changeset
286 if( r==n.doubleValue() )
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diff changeset
287 return r;
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diff changeset
288 }
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diff changeset
289 else if( obj instanceof String ) {
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diff changeset
290 String s = (String)obj;
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diff changeset
291 try {
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diff changeset
292 return Long.valueOf(s);
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diff changeset
293 } catch(NumberFormatException e) {}
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diff changeset
294 }
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diff changeset
295 return obj;
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diff changeset
296 }
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diff changeset
297 };
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diff changeset
298
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diff changeset
299 private static final ArgConverter ARG_INTEGER = new ArgConverter() {
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diff changeset
300 public Object convert(Object obj) {
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diff changeset
301 if( obj instanceof Integer )
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diff changeset
302 return obj;
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diff changeset
303 if( obj instanceof Number ) {
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diff changeset
304 Number n = (Number)obj;
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diff changeset
305 int r = n.intValue();
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diff changeset
306 if( r==n.doubleValue() )
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diff changeset
307 return r;
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diff changeset
308 }
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diff changeset
309 else if( obj instanceof String ) {
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diff changeset
310 String s = (String)obj;
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diff changeset
311 try {
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diff changeset
312 return Integer.valueOf(s);
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diff changeset
313 } catch(NumberFormatException e) {}
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diff changeset
314 }
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diff changeset
315 return obj;
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diff changeset
316 }
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diff changeset
317 };
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diff changeset
318
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diff changeset
319 private static final ArgConverter ARG_SHORT = new ArgConverter() {
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diff changeset
320 public Object convert(Object obj) {
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diff changeset
321 if( obj instanceof Short )
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diff changeset
322 return obj;
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diff changeset
323 if( obj instanceof Number ) {
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diff changeset
324 Number n = (Number)obj;
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diff changeset
325 short r = n.shortValue();
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diff changeset
326 if( r==n.doubleValue() )
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diff changeset
327 return r;
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diff changeset
328 }
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diff changeset
329 else if( obj instanceof String ) {
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diff changeset
330 String s = (String)obj;
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diff changeset
331 try {
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diff changeset
332 return Short.valueOf(s);
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diff changeset
333 } catch(NumberFormatException e) {}
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diff changeset
334 }
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diff changeset
335 return obj;
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diff changeset
336 }
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diff changeset
337 };
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diff changeset
338
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parents: 46
diff changeset
339 private static final ArgConverter ARG_BYTE = new ArgConverter() {
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diff changeset
340 public Object convert(Object obj) {
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diff changeset
341 if( obj instanceof Byte )
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diff changeset
342 return obj;
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diff changeset
343 if( obj instanceof Number ) {
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diff changeset
344 Number n = (Number)obj;
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diff changeset
345 byte r = n.byteValue();
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diff changeset
346 if( r==n.doubleValue() )
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diff changeset
347 return r;
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diff changeset
348 }
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diff changeset
349 else if( obj instanceof String ) {
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diff changeset
350 String s = (String)obj;
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diff changeset
351 try {
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diff changeset
352 return Byte.valueOf(s);
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diff changeset
353 } catch(NumberFormatException e) {}
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diff changeset
354 }
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diff changeset
355 return obj;
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diff changeset
356 }
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diff changeset
357 };
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diff changeset
358
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diff changeset
359 private static final ArgConverter ARG_TABLE = new ArgConverter() {
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diff changeset
360 public Object convert(Object obj) {
86
6db8f286fa6c _ENV is per module, not global
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
361 if( obj == null )
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diff changeset
362 return null;
47
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diff changeset
363 if( obj instanceof List ) {
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parents: 46
diff changeset
364 @SuppressWarnings("unchecked")
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diff changeset
365 List<Object> list = (List<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
366 return new LuanTable(list);
47
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diff changeset
367 }
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diff changeset
368 if( obj instanceof Map ) {
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parents: 46
diff changeset
369 @SuppressWarnings("unchecked")
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diff changeset
370 Map<Object,Object> map = (Map<Object,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
371 return new LuanTable(map);
47
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diff changeset
372 }
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diff changeset
373 if( obj instanceof Set ) {
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diff changeset
374 @SuppressWarnings("unchecked")
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diff changeset
375 Set<Object> set = (Set<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
376 return new LuanTable(set);
47
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diff changeset
377 }
55
9381b23ea9e1 various fixes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
378 Class cls = obj.getClass();
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parents: 49
diff changeset
379 if( cls.isArray() && !cls.getComponentType().isPrimitive() ) {
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diff changeset
380 Object[] a = (Object[])obj;
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parents: 49
diff changeset
381 return new LuanTable(Arrays.asList(a));
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diff changeset
382 }
47
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diff changeset
383 return obj;
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diff changeset
384 }
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diff changeset
385 };
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parents: 46
diff changeset
386
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diff changeset
387 private static final ArgConverter ARG_MAP = new ArgConverter() {
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parents: 46
diff changeset
388 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
389 if( obj instanceof LuanTable ) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
390 LuanTable t = (LuanTable)obj;
47
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diff changeset
391 return t.asMap();
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diff changeset
392 }
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diff changeset
393 return obj;
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diff changeset
394 }
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diff changeset
395 };
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parents: 46
diff changeset
396
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parents: 46
diff changeset
397 private static final ArgConverter ARG_LIST = new ArgConverter() {
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parents: 46
diff changeset
398 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
399 if( obj instanceof LuanTable ) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
400 LuanTable t = (LuanTable)obj;
47
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parents: 46
diff changeset
401 if( t.isList() )
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parents: 46
diff changeset
402 return t.asList();
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parents: 46
diff changeset
403 }
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parents: 46
diff changeset
404 return obj;
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parents: 46
diff changeset
405 }
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parents: 46
diff changeset
406 };
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
407
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
408 private static final ArgConverter ARG_SET = new ArgConverter() {
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
409 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
410 if( obj instanceof LuanTable ) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
411 LuanTable t = (LuanTable)obj;
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
412 if( t.isSet() )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
413 return t.asSet();
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parents: 46
diff changeset
414 }
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parents: 46
diff changeset
415 return obj;
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parents: 46
diff changeset
416 }
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parents: 46
diff changeset
417 };
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parents: 46
diff changeset
418
57
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
419 private static class ArgArray implements ArgConverter {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
420 private final Object[] a;
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
421
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
422 ArgArray(Class cls) {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
423 a = (Object[])Array.newInstance(cls.getComponentType(),0);
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
424 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
425
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
426 public Object convert(Object obj) {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
427 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
428 LuanTable t = (LuanTable)obj;
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
429 if( t.isList() ) {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
430 try {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
431 return t.asList().toArray(a);
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
432 } 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
433 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
434 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
435 return obj;
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
436 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
437 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
438
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
439 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
440 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
441 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
442 }
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
443
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
444 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
445 final boolean isVarArgs = m.isVarArgs();
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
446 Class<?>[] paramTypes = m.getParameterTypes();
21
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
447 if( takesLuaState ) {
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
448 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
449 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
450 paramTypes = t;
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
451 }
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
452 ArgConverter[] a = new ArgConverter[paramTypes.length];
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
453 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
454 Class<?> paramType = paramTypes[i];
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
455 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
456 paramType = paramType.getComponentType();
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
457 a[i] = getArgConverter(paramType);
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
458 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
459 return a;
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
460 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
461
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
462 private static ArgConverter getArgConverter(Class<?> cls) {
95
9aa7d5f20333 in LuanJavaFunction, fix primitive type checking and add boolean conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 88
diff changeset
463 if( cls == Boolean.TYPE )
9aa7d5f20333 in LuanJavaFunction, fix primitive type checking and add boolean conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 88
diff changeset
464 return ARG_BOOLEAN;
9aa7d5f20333 in LuanJavaFunction, fix primitive type checking and add boolean conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 88
diff changeset
465 if( cls.equals(Boolean.class) )
9aa7d5f20333 in LuanJavaFunction, fix primitive type checking and add boolean conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 88
diff changeset
466 return ARG_BOOLEAN_OBJ;
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
467 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
468 return ARG_DOUBLE;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
469 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
470 return ARG_FLOAT;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
471 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
472 return ARG_LONG;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
473 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
474 return ARG_INTEGER;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
475 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
476 return ARG_SHORT;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
477 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
478 return ARG_BYTE;
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
479 if( cls.equals(LuanTable.class) )
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
480 return ARG_TABLE;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
481 if( cls.equals(Map.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
482 return ARG_MAP;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
483 if( cls.equals(List.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
484 return ARG_LIST;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
485 if( cls.equals(Set.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
486 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
487 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
488 return new ArgArray(cls);
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
489 return ARG_SAME;
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
490 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
491
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
492
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
493
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
494 private static abstract class JavaMethod {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
495 abstract boolean isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
496 abstract Class<?>[] getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
497 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
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 abstract Class<?> getReturnType();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
500
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
501 static JavaMethod of(final Method m) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
502 return new JavaMethod() {
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
503 @Override boolean isVarArgs() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
504 return m.isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
505 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
506 @Override Class<?>[] getParameterTypes() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
507 return m.getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
508 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
509 @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
510 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException
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 return m.invoke(obj,args);
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
513 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
514 @Override Class<?> getReturnType() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
515 return m.getReturnType();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
516 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
517 @Override public String toString() {
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
518 return m.toString();
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
519 }
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
520 };
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
521 }
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
522
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
523 static JavaMethod of(final Constructor c) {
8a57ebfdfd78 add JavaLib
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524 return new JavaMethod() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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525 @Override boolean isVarArgs() {
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526 return c.isVarArgs();
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527 }
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528 @Override Class<?>[] getParameterTypes() {
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529 return c.getParameterTypes();
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530 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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531 @Override Object invoke(Object obj,Object... args)
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532 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException
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533 {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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534 return c.newInstance(args);
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535 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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536 @Override Class<?> getReturnType() {
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537 return c.getDeclaringClass();
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538 }
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539 @Override public String toString() {
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540 return c.toString();
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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541 }
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542 };
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543 }
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544
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545 }
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546
1
2df768b926aa start Luan
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547 }