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annotate core/src/luan/LuanJavaFunction.java @ 210:e84655b4c45e

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better exception handling git-svn-id: https://luan-java.googlecode.com/svn/trunk@211 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 08 Jul 2014 19:05:27 +0000
parents 239c8d650028
children 5b9726553ac8
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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.ArrayList;
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9 import java.util.Map;
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10 import java.util.HashMap;
47
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11 import java.util.Set;
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12 import java.util.Arrays;
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15 public final class LuanJavaFunction extends LuanFunction implements DeepCloneable<LuanJavaFunction> {
37
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16 private final JavaMethod method;
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17 private Object obj;
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18 private final RtnConverter rtnConverter;
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19 private final boolean takesLuaState;
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20 private final ArgConverter[] argConverters;
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21 private final Class<?> varArgCls;
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23 public LuanJavaFunction(Method method,Object obj) {
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24 this(method,obj,false);
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25 }
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27 public LuanJavaFunction(Method method,Object obj,boolean convertArray) {
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28 this( JavaMethod.of(method), obj, convertArray );
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29 }
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31 public LuanJavaFunction(Constructor constr,Object obj) {
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32 this( JavaMethod.of(constr), obj, false );
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33 }
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35 private LuanJavaFunction(JavaMethod method,Object obj,boolean convertArray) {
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36 this.method = method;
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37 this.obj = obj;
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38 this.rtnConverter = getRtnConverter(method,convertArray);
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39 this.takesLuaState = takesLuaState(method);
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40 this.argConverters = getArgConverters(takesLuaState,method);
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41 if( method.isVarArgs() ) {
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42 Class<?>[] paramTypes = method.getParameterTypes();
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43 this.varArgCls = paramTypes[paramTypes.length-1].getComponentType();
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44 } else {
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45 this.varArgCls = null;
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46 }
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47 }
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49 private LuanJavaFunction(LuanJavaFunction f) {
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50 this.method = f.method;
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51 this.rtnConverter = f.rtnConverter;
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52 this.takesLuaState = f.takesLuaState;
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53 this.argConverters = f.argConverters;
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54 this.varArgCls = f.varArgCls;
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55 }
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57 @Override public LuanJavaFunction shallowClone() {
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58 return obj==null ? this : new LuanJavaFunction(this);
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59 }
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61 @Override public void deepenClone(LuanJavaFunction clone,DeepCloner cloner) {
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62 clone.obj = cloner.get(obj);
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63 }
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64
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65 @Override public String toString() {
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66 return "java-function: " + method;
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67 }
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69 public Class<?>[] getParameterTypes() {
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70 return method.getParameterTypes();
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71 }
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72
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73 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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74 try {
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75 args = fixArgs(luan,args);
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76 return doCall(luan,args);
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77 } catch(IllegalArgumentException e) {
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78 checkArgs(luan,args);
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79 throw e;
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80 }
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81 }
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82
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83 public Object rawCall(LuanState luan,Object[] args) throws LuanException {
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84 args = fixArgs(luan,args);
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85 return doCall(luan,args);
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86 }
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87
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88 private Object doCall(LuanState luan,Object[] args) throws LuanException {
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89 Object rtn;
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90 try {
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91 rtn = method.invoke(obj,args);
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92 } catch(IllegalAccessException e) {
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93 throw new RuntimeException("method = "+method,e);
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94 } catch(InvocationTargetException e) {
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95 Throwable cause = e.getCause();
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96 if( cause instanceof Error )
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97 throw (Error)cause;
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98 if( cause instanceof LuanException )
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99 throw (LuanException)cause;
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100 throw luan.exception(cause);
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101 } catch(InstantiationException e) {
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102 throw new RuntimeException(e);
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103 }
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104 return rtnConverter.convert(rtn);
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105 }
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106
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107 private static final Map<Class,Class> primitiveMap = new HashMap<Class,Class>();
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108 static {
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109 primitiveMap.put(Boolean.TYPE,Boolean.class);
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110 primitiveMap.put(Character.TYPE,Character.class);
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111 primitiveMap.put(Byte.TYPE,Byte.class);
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112 primitiveMap.put(Short.TYPE,Short.class);
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113 primitiveMap.put(Integer.TYPE,Integer.class);
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114 primitiveMap.put(Long.TYPE,Long.class);
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115 primitiveMap.put(Float.TYPE,Float.class);
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116 primitiveMap.put(Double.TYPE,Double.class);
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117 primitiveMap.put(Void.TYPE,Void.class);
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118 }
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119
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120 private void checkArgs(LuanState luan,Object[] args) throws LuanException {
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121 Class<?>[] a = getParameterTypes();
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122 int start = takesLuaState ? 1 : 0;
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123 for( int i=start; i<a.length; i++ ) {
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124 Class<?> paramType = a[i];
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125 Class<?> type = paramType;
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126 if( type.isPrimitive() )
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127 type = primitiveMap.get(type);
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128 Object arg = args[i];
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129 if( !type.isInstance(arg) ) {
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130 String expected = paramType.getSimpleName();
210
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131 if( i==a.length-1 && method.isVarArgs() )
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132 expected = paramType.getComponentType().getSimpleName()+"...";
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133 if( arg==null ) {
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134 if( paramType.isPrimitive() )
130
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135 throw luan.exception("bad argument #"+(i+1-start)+" ("+expected+" expected, got nil)");
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136 } else {
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137 String got = arg.getClass().getSimpleName();
130
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138 throw luan.exception("bad argument #"+(i+1-start)+" ("+expected+" expected, got "+got+")");
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139 }
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140 }
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141 }
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142 }
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143
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144 private Object[] fixArgs(LuanState luan,Object[] args) {
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145 int n = argConverters.length;
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146 Object[] rtn;
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147 int start = 0;
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148 if( !takesLuaState && varArgCls==null && args.length == n ) {
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149 rtn = args;
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150 } else {
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151 if( takesLuaState )
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152 n++;
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153 rtn = new Object[n];
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154 if( takesLuaState ) {
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155 rtn[start++] = luan;
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156 }
21
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157 n = argConverters.length;
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158 if( varArgCls != null ) {
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159 n--;
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160 if( args.length < argConverters.length ) {
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161 rtn[rtn.length-1] = Array.newInstance(varArgCls,0);
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162 } else {
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163 int len = args.length - n;
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164 Object varArgs = Array.newInstance(varArgCls,len);
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165 ArgConverter ac = argConverters[n];
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166 for( int i=0; i<len; i++ ) {
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167 Array.set( varArgs, i, ac.convert(args[n+i]) );
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168 }
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169 rtn[rtn.length-1] = varArgs;
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170 }
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171 }
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172 System.arraycopy(args,0,rtn,start,Math.min(args.length,n));
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173 }
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174 for( int i=0; i<n; i++ ) {
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175 rtn[start+i] = argConverters[i].convert(rtn[start+i]);
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176 }
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177 return rtn;
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178 }
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179
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180
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181 private interface RtnConverter {
111
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182 public Object convert(Object obj);
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183 }
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184
123
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185 private static final RtnConverter RTN_NOTHING = new RtnConverter() {
111
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186 @Override public Object[] convert(Object obj) {
123
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187 return NOTHING;
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188 }
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189 };
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190
111
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191 private static final RtnConverter RTN_SAME = new RtnConverter() {
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192 @Override public Object convert(Object obj) {
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193 return obj;
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194 }
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195 };
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196
209
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diff changeset
197 private static final RtnConverter RTN_ARRAY = new RtnConverter() {
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diff changeset
198 @Override public Object convert(Object obj) {
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diff changeset
199 if( obj == null )
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200 return null;
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diff changeset
201 Object[] a = new Object[Array.getLength(obj)];
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diff changeset
202 for( int i=0; i<a.length; i++ ) {
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203 a[i] = Array.get(obj,i);
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204 }
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diff changeset
205 return new LuanTable(new ArrayList<Object>(Arrays.asList(a)));
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206 }
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207 };
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208
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diff changeset
209 private static RtnConverter getRtnConverter(JavaMethod m,boolean convertArray) {
1
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210 Class<?> rtnType = m.getReturnType();
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211 if( rtnType == Void.TYPE )
123
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212 return RTN_NOTHING;
209
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213 if( convertArray && rtnType.isArray() )
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214 return RTN_ARRAY;
111
2428ecfed375 change LuanFunction.call() from returning Object[] to returning Object, to reduce garbage collection
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215 return RTN_SAME;
43
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216 }
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217
47
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218 private static boolean isNumber(Class<?> rtnType) {
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219 return rtnType == Short.TYPE
47
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220 || rtnType == Integer.TYPE
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221 || rtnType == Long.TYPE
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222 || rtnType == Float.TYPE
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223 || rtnType == Double.TYPE
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224 ;
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225 }
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226
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227 private interface ArgConverter {
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228 public Object convert(Object obj);
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229 }
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230
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231 private static final ArgConverter ARG_SAME = new ArgConverter() {
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232 public Object convert(Object obj) {
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233 return obj;
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234 }
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235 };
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236
95
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237 private static final ArgConverter ARG_BOOLEAN = new ArgConverter() {
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238 public Object convert(Object obj) {
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diff changeset
239 return Luan.toBoolean(obj);
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240 }
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241 };
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242
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243 private static final ArgConverter ARG_BOOLEAN_OBJ = new ArgConverter() {
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244 public Object convert(Object obj) {
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245 return obj==null ? null : Luan.toBoolean(obj);
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246 }
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diff changeset
247 };
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diff changeset
248
47
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diff changeset
249 private static final ArgConverter ARG_DOUBLE = new ArgConverter() {
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250 public Object convert(Object obj) {
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251 if( obj instanceof Double )
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252 return obj;
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253 if( obj instanceof Number ) {
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254 Number n = (Number)obj;
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255 return n.doubleValue();
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256 }
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257 if( obj instanceof String ) {
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258 String s = (String)obj;
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diff changeset
259 try {
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260 return Double.valueOf(s);
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261 } catch(NumberFormatException e) {}
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262 }
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263 return obj;
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264 }
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diff changeset
265 };
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266
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diff changeset
267 private static final ArgConverter ARG_FLOAT = new ArgConverter() {
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diff changeset
268 public Object convert(Object obj) {
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269 if( obj instanceof Float )
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270 return obj;
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271 if( obj instanceof Number ) {
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272 Number n = (Number)obj;
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diff changeset
273 return n.floatValue();
47
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diff changeset
274 }
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275 if( obj instanceof String ) {
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276 String s = (String)obj;
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diff changeset
277 try {
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278 return Float.valueOf(s);
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279 } catch(NumberFormatException e) {}
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diff changeset
280 }
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diff changeset
281 return obj;
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282 }
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diff changeset
283 };
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diff changeset
284
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diff changeset
285 private static final ArgConverter ARG_LONG = new ArgConverter() {
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286 public Object convert(Object obj) {
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diff changeset
287 if( obj instanceof Long )
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diff changeset
288 return obj;
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289 if( obj instanceof Number ) {
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diff changeset
290 Number n = (Number)obj;
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diff changeset
291 long r = n.longValue();
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diff changeset
292 if( r==n.doubleValue() )
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diff changeset
293 return r;
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294 }
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diff changeset
295 else if( obj instanceof String ) {
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diff changeset
296 String s = (String)obj;
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diff changeset
297 try {
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diff changeset
298 return Long.valueOf(s);
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299 } catch(NumberFormatException e) {}
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diff changeset
300 }
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diff changeset
301 return obj;
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diff changeset
302 }
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diff changeset
303 };
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diff changeset
304
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diff changeset
305 private static final ArgConverter ARG_INTEGER = new ArgConverter() {
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diff changeset
306 public Object convert(Object obj) {
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diff changeset
307 if( obj instanceof Integer )
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diff changeset
308 return obj;
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diff changeset
309 if( obj instanceof Number ) {
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diff changeset
310 Number n = (Number)obj;
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diff changeset
311 int r = n.intValue();
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diff changeset
312 if( r==n.doubleValue() )
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diff changeset
313 return r;
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diff changeset
314 }
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diff changeset
315 else if( obj instanceof String ) {
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diff changeset
316 String s = (String)obj;
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diff changeset
317 try {
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diff changeset
318 return Integer.valueOf(s);
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diff changeset
319 } catch(NumberFormatException e) {}
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320 }
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diff changeset
321 return obj;
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diff changeset
322 }
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diff changeset
323 };
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diff changeset
324
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diff changeset
325 private static final ArgConverter ARG_SHORT = new ArgConverter() {
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diff changeset
326 public Object convert(Object obj) {
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diff changeset
327 if( obj instanceof Short )
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diff changeset
328 return obj;
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diff changeset
329 if( obj instanceof Number ) {
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diff changeset
330 Number n = (Number)obj;
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diff changeset
331 short r = n.shortValue();
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diff changeset
332 if( r==n.doubleValue() )
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diff changeset
333 return r;
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diff changeset
334 }
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diff changeset
335 else if( obj instanceof String ) {
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diff changeset
336 String s = (String)obj;
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diff changeset
337 try {
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diff changeset
338 return Short.valueOf(s);
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diff changeset
339 } catch(NumberFormatException e) {}
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diff changeset
340 }
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diff changeset
341 return obj;
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diff changeset
342 }
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diff changeset
343 };
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diff changeset
344
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diff changeset
345 private static final ArgConverter ARG_BYTE = new ArgConverter() {
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diff changeset
346 public Object convert(Object obj) {
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diff changeset
347 if( obj instanceof Byte )
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diff changeset
348 return obj;
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diff changeset
349 if( obj instanceof Number ) {
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diff changeset
350 Number n = (Number)obj;
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diff changeset
351 byte r = n.byteValue();
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diff changeset
352 if( r==n.doubleValue() )
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diff changeset
353 return r;
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diff changeset
354 }
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diff changeset
355 else if( obj instanceof String ) {
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diff changeset
356 String s = (String)obj;
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diff changeset
357 try {
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diff changeset
358 return Byte.valueOf(s);
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diff changeset
359 } catch(NumberFormatException e) {}
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diff changeset
360 }
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diff changeset
361 return obj;
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diff changeset
362 }
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diff changeset
363 };
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diff changeset
364
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diff changeset
365 private static final ArgConverter ARG_TABLE = new ArgConverter() {
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diff changeset
366 public Object convert(Object obj) {
86
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diff changeset
367 if( obj == null )
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diff changeset
368 return null;
47
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diff changeset
369 if( obj instanceof List ) {
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diff changeset
370 @SuppressWarnings("unchecked")
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diff changeset
371 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
372 return new LuanTable(list);
47
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diff changeset
373 }
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diff changeset
374 if( obj instanceof Map ) {
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diff changeset
375 @SuppressWarnings("unchecked")
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diff changeset
376 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
377 return new LuanTable(map);
47
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diff changeset
378 }
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diff changeset
379 if( obj instanceof Set ) {
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diff changeset
380 @SuppressWarnings("unchecked")
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diff changeset
381 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
382 return new LuanTable(set);
47
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diff changeset
383 }
55
9381b23ea9e1 various fixes
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diff changeset
384 Class cls = obj.getClass();
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diff changeset
385 if( cls.isArray() && !cls.getComponentType().isPrimitive() ) {
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diff changeset
386 Object[] a = (Object[])obj;
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parents: 49
diff changeset
387 return new LuanTable(Arrays.asList(a));
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diff changeset
388 }
47
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diff changeset
389 return obj;
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diff changeset
390 }
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diff changeset
391 };
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diff changeset
392
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diff changeset
393 private static final ArgConverter ARG_MAP = new ArgConverter() {
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diff changeset
394 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
395 if( obj instanceof LuanTable ) {
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diff changeset
396 LuanTable t = (LuanTable)obj;
47
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diff changeset
397 return t.asMap();
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diff changeset
398 }
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diff changeset
399 return obj;
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diff changeset
400 }
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diff changeset
401 };
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parents: 46
diff changeset
402
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diff changeset
403 private static final ArgConverter ARG_LIST = new ArgConverter() {
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parents: 46
diff changeset
404 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
405 if( obj instanceof LuanTable ) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
406 LuanTable t = (LuanTable)obj;
47
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parents: 46
diff changeset
407 if( t.isList() )
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diff changeset
408 return t.asList();
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diff changeset
409 }
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diff changeset
410 return obj;
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parents: 46
diff changeset
411 }
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parents: 46
diff changeset
412 };
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parents: 46
diff changeset
413
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parents: 46
diff changeset
414 private static final ArgConverter ARG_SET = new ArgConverter() {
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diff changeset
415 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
416 if( obj instanceof LuanTable ) {
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
417 LuanTable t = (LuanTable)obj;
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
418 if( t.isSet() )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
419 return t.asSet();
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
420 }
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
421 return obj;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
422 }
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
423 };
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
424
57
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
425 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
426 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
427
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
428 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
429 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
430 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
431
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
432 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
433 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
434 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
435 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
436 try {
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
437 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
438 } 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
439 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
440 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
441 return obj;
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
442 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
443 }
19ca9c4c6c7f auto-convert table to java array
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 56
diff changeset
444
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
445 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
446 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
447 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
448 }
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
449
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
450 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
451 final boolean isVarArgs = m.isVarArgs();
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
452 Class<?>[] paramTypes = m.getParameterTypes();
21
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
453 if( takesLuaState ) {
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
454 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
455 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
456 paramTypes = t;
c93d8c781853 add functions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
457 }
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
458 ArgConverter[] a = new ArgConverter[paramTypes.length];
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
459 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
460 Class<?> paramType = paramTypes[i];
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
461 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
462 paramType = paramType.getComponentType();
24fd6381caca add to interp
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 2
diff changeset
463 a[i] = getArgConverter(paramType);
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
464 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
465 return a;
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
466 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
467
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
468 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
469 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
470 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
471 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
472 return ARG_BOOLEAN_OBJ;
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
473 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
474 return ARG_DOUBLE;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
475 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
476 return ARG_FLOAT;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
477 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
478 return ARG_LONG;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
479 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
480 return ARG_INTEGER;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
481 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
482 return ARG_SHORT;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
483 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
484 return ARG_BYTE;
48
64ecb7a3aad7 rename Lua to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 47
diff changeset
485 if( cls.equals(LuanTable.class) )
47
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
486 return ARG_TABLE;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
487 if( cls.equals(Map.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
488 return ARG_MAP;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
489 if( cls.equals(List.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
490 return ARG_LIST;
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
491 if( cls.equals(Set.class) )
659c7139e903 better conversion
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 46
diff changeset
492 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
493 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
494 return new ArgArray(cls);
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
495 return ARG_SAME;
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
496 }
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
497
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
498
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 private static abstract class JavaMethod {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
501 abstract boolean isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
502 abstract Class<?>[] getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
503 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
504 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException;
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
505 abstract Class<?> getReturnType();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
506
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
507 static JavaMethod of(final Method m) {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
508 return new JavaMethod() {
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
509 @Override boolean isVarArgs() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
510 return m.isVarArgs();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
511 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
512 @Override Class<?>[] getParameterTypes() {
37
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
513 return m.getParameterTypes();
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
514 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
515 @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
516 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
517 {
8a57ebfdfd78 add JavaLib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
518 return m.invoke(obj,args);
8a57ebfdfd78 add JavaLib
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519 }
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80b67b1a653c implement string lib
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parents: 40
diff changeset
520 @Override Class<?> getReturnType() {
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521 return m.getReturnType();
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522 }
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523 @Override public String toString() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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524 return m.toString();
80b67b1a653c implement string lib
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525 }
37
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526 };
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527 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
528
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
529 static JavaMethod of(final Constructor c) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
530 return new JavaMethod() {
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80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
531 @Override boolean isVarArgs() {
37
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
532 return c.isVarArgs();
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533 }
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80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
534 @Override Class<?>[] getParameterTypes() {
37
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
535 return c.getParameterTypes();
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536 }
43
80b67b1a653c implement string lib
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
537 @Override Object invoke(Object obj,Object... args)
37
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
538 throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
539 {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
540 return c.newInstance(args);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
541 }
43
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
542 @Override Class<?> getReturnType() {
37
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
543 return c.getDeclaringClass();
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544 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
545 @Override public String toString() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 40
diff changeset
546 return c.toString();
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diff changeset
547 }
37
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diff changeset
548 };
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549 }
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parents: 21
diff changeset
550
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parents: 21
diff changeset
551 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 21
diff changeset
552
1
2df768b926aa start Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
553 }