private IMethodInfo getPropertyGetMethod(IPropertyInfo pi, IJavaType ownerType) {
JavaTypeInfo ti;
if (!(pi.getOwnersType() instanceof IJavaType)) {
return null;
}
if (ownerType.getTypeInfo() instanceof JavaTypeInfo) {
ti = (JavaTypeInfo) ownerType.getTypeInfo();
} else {
throw new IllegalArgumentException(ownerType + " is not a recognized Java type");
}
IType propType = pi.getFeatureType();
String strAccessor = "get" + pi.getDisplayName();
IMethodInfo mi = ti.getMethod(ownerType, strAccessor);
if (mi == null || mi.getReturnType() != propType) {
strAccessor = "is" + pi.getDisplayName();
mi = ti.getMethod(ownerType, strAccessor);
}
if (mi != null && mi.getReturnType() == propType) {
return mi;
}
return null;
}
private void genMemberMethod(StringBuilder sb, IMethodInfo mi, IJavaType type) {
if (!canExtendMethod(mi)) {
return;
}
StringBuilder sbModifiers = buildModifiers(mi);
if (mi.getDescription() != null) {
sb.append("/** ").append(mi.getDescription()).append(" */");
}
sb.append(" ")
.append(sbModifiers)
.append("function ")
.append(mi.getDisplayName())
.append(TypeInfoUtil.getTypeVarList(mi))
.append("(");
IParameterInfo[] params = getGenericParameters(mi);
for (int i = 0; i < params.length; i++) {
IParameterInfo pi = params[i];
sb.append(' ')
.append("p")
.append(i)
.append(" : ")
.append(pi.getFeatureType().getName())
.append(i < params.length - 1 ? ',' : ' ');
}
sb.append(") : ").append(getGenericReturnType(mi).getName()).append("\n");
if (!mi.isAbstract()) {
generateStub(sb, mi.getReturnType());
}
}
private void genStaticMethod(StringBuilder sb, IMethodInfo mi, IJavaType type) {
if (!(mi instanceof JavaMethodInfo)) {
// It is possible that a methodinfo on a java type originates outside of java.
// E.g., enhancement methods. Only static JAVA members should be reflected in
// the proxy.
return;
}
if (isPropertyMethod(mi)) {
// We favor properties over methods -- gotta pick one
return;
}
StringBuilder sbModifiers = appendVisibilityModifier(mi);
if (mi.getDescription() != null) {
sb.append("/** ").append(mi.getDescription()).append(" */");
}
sb.append(" ")
.append(sbModifiers)
.append("static function ")
.append(mi.getDisplayName())
.append(TypeInfoUtil.getTypeVarList(mi))
.append("(");
IParameterInfo[] params = getGenericParameters(mi);
for (int i = 0; i < params.length; i++) {
IParameterInfo pi = params[i];
sb.append(' ')
.append("p")
.append(i)
.append(" : ")
.append(pi.getFeatureType().getName())
.append(i < params.length - 1 ? ',' : ' ');
}
sb.append(") : ")
.append(getGenericReturnType(mi).getName())
.append("\n")
.append("{\n")
.append((mi.getReturnType() == GosuParserTypes.NULL_TYPE() ? "" : " return "))
.append(type.getName())
.append('.')
.append(mi.getDisplayName())
.append(TypeInfoUtil.getTypeVarListNoBounds(mi))
.append("(");
for (int i = 0; i < params.length; i++) {
sb.append(' ').append("p").append(i).append(i < params.length - 1 ? ',' : ' ');
}
sb.append(");\n");
sb.append("}\n");
}
private boolean isPropertySetter(IMethodInfo mi) {
String strMethod = mi.getDisplayName();
if (strMethod.startsWith("set")
&& strMethod.length() > 3
&& mi.getParameters().length == 1
&& mi.getReturnType() == JavaTypes.pVOID()) {
String strProp = strMethod.substring("set".length());
if (Character.isUpperCase(strProp.charAt(0))) {
ITypeInfo ti = (ITypeInfo) mi.getContainer();
IPropertyInfo pi =
ti instanceof IRelativeTypeInfo
? ((IRelativeTypeInfo) ti).getProperty(mi.getOwnersType(), strProp)
: ti.getProperty(strProp);
if (pi != null
&& pi.isReadable()
&& getGenericType(pi)
.getName()
.equals(getGenericParameters(mi)[0].getFeatureType().getName())) {
return !Keyword.isReserved(pi.getName()) || Keyword.isReservedValue(pi.getName());
}
}
}
return false;
}
private IType getGenericReturnType(IMethodInfo mi) {
return (mi instanceof JavaMethodInfo)
? ((JavaMethodInfo) mi).getGenericReturnType()
: mi.getReturnType();
}
private void genMemberProperty(IPropertyInfo pi, StringBuilder sb, IJavaType type) {
if (pi.isStatic()) {
return;
}
if (!(pi instanceof JavaBaseFeatureInfo)) {
// It is possible that a propertyinfo on a java type originates outside of java.
// E.g., enhancement properties. Gosu does not support extending these.
return;
}
if (Keyword.isReserved(pi.getName()) && !Keyword.isReservedValue(pi.getName())) {
// Sorry these won't compile
// ## todo: handle them reflectively?
return;
}
if (pi instanceof JavaFieldPropertyInfo) {
StringBuilder sbModifiers = appendFieldVisibilityModifier(pi);
sb.append(" ")
.append(sbModifiers)
.append(" var ")
.append(pi.getName())
.append(" : ")
.append(getGenericType(pi).getName())
.append("\n");
} else {
IMethodInfo mi = getPropertyGetMethod(pi, type);
boolean bFinal = false;
if (mi != null) {
int iMethodModifiers = ((IJavaMethodInfo) mi).getModifiers();
bFinal = java.lang.reflect.Modifier.isFinal(iMethodModifiers);
}
if (mi != null && !bFinal) {
if (mi.getDescription() != null) {
sb.append("/** ").append(mi.getDescription()).append(" */");
}
StringBuilder sbModifiers = buildModifiers(mi);
sb.append(" ")
.append(sbModifiers)
.append("property get ")
.append(pi.getName())
.append("() : ")
.append(getGenericType(pi).getName())
.append("\n");
if (!mi.isAbstract()) {
generateStub(sb, mi.getReturnType());
}
} else {
String strJavaClassName = type.getName();
StringBuilder sbModifiers;
boolean bAbstact = false;
if (bFinal) {
bAbstact = mi.isAbstract();
sbModifiers = buildModifiers(mi);
} else {
sbModifiers = appendVisibilityModifier(pi);
}
sb.append(" ")
.append(sbModifiers)
.append("property get ")
.append(pi.getName())
.append("() : ")
.append(getGenericType(pi).getName())
.append("\n");
if (!bAbstact) {
generateStub(sb, getGenericType(pi));
}
}
mi = getPropertySetMethod(pi, type);
bFinal = false;
if (mi != null) {
int iMethodModifiers = ((IJavaMethodInfo) mi).getModifiers();
bFinal = java.lang.reflect.Modifier.isFinal(iMethodModifiers);
}
if (mi != null && !bFinal) {
StringBuilder sbModifiers = buildModifiers(mi);
if (pi.isWritable(pi.getOwnersType())) {
sb.append(" ")
.append(sbModifiers)
.append("property set ")
.append(pi.getName())
.append("( _proxy_arg_value : ")
.append(getGenericType(pi).getName())
.append(" )\n");
if (!mi.isAbstract()) {
generateStub(sb, JavaTypes.pVOID());
}
}
} else {
if (pi.isWritable(type.getEnclosingType() != null ? null : pi.getOwnersType())) {
String strJavaClassName = type.getName();
StringBuilder sbModifiers;
boolean bAbstact = false;
if (bFinal) {
bAbstact = mi.isAbstract();
sbModifiers = buildModifiers(mi);
} else {
sbModifiers = appendVisibilityModifier(pi);
}
sb.append(" ")
.append(sbModifiers)
.append("property set ")
.append(pi.getName())
.append("( _proxy_arg_value : ")
.append(getGenericType(pi).getName())
.append(" )\n");
if (!bAbstact) {
generateStub(sb, JavaTypes.pVOID());
}
}
}
}
}
