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Start to simplify Identity.

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It seems that this wants to be something like Java's `getClass`
and `instanceof` feature.  C++'s RTTI can do this too.

For now, though, I'm just going to simplify this system to be
more readable in "standard" C++ dialects.  Then I can figure out
what it's doing and how its used.
This commit is contained in:
ADAM David Alan Martin
2025-08-08 01:08:02 -04:00
parent 905fdbf0dd
commit 26436617cc
2 changed files with 10 additions and 9 deletions
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13
lout/identity.cc
View File

@ -58,8 +58,9 @@ void IdentifiableObject::Class::intoStringBuffer(misc::StringBuffer *sb)
HashTable <ConstString, IdentifiableObject::Class>
*IdentifiableObject::classesByName =
new HashTable<ConstString, IdentifiableObject::Class> (true, true);
Vector <IdentifiableObject::Class> *IdentifiableObject::classesById =
new Vector <IdentifiableObject::Class> (16, false);
std::vector< IdentifiableObject::Class * > IdentifiableObject::classesById;
IdentifiableObject::Class *IdentifiableObject::currentlyConstructedClass;
IdentifiableObject::IdentifiableObject ()
@ -85,11 +86,11 @@ void IdentifiableObject::registerName (const char *className, int *classId)
ConstString str (className);
Class *klass = classesByName->get (&str);
if (klass == NULL) {
klass = new Class (currentlyConstructedClass, classesById->size (),
klass = new Class (currentlyConstructedClass, classesById.size (),
className);
ConstString *key = new ConstString (className);
classesByName->put (key, klass);
classesById->put (klass);
classesById.push_back (klass);
*classId = klass->id;
}
@ -109,7 +110,7 @@ bool IdentifiableObject::instanceOf (int otherClassId)
// if this class is an instance of it or of a sub-class.
return false;
Class *otherClass = classesById->get (otherClassId);
Class *otherClass = classesById.at (otherClassId);
if (otherClass == NULL) {
fprintf (stderr,
@ -118,7 +119,7 @@ bool IdentifiableObject::instanceOf (int otherClassId)
return false;
}
for (Class *klass = classesById->get (classId); klass != NULL;
for (Class *klass = classesById.at (classId); klass != NULL;
klass = klass->parent) {
if (klass == otherClass)
return true;

6
lout/identity.hh
View File

@ -98,7 +98,7 @@ namespace identity {
class IdentifiableObject: public object::Object
{
private:
class Class: public object::Object
class Class final: public object::Object
{
public:
Class *parent;
@ -112,7 +112,7 @@ private:
static container::typed::HashTable <object::ConstString,
Class> *classesByName;
static container::typed::Vector <Class> *classesById;
static std::vector< Class * > classesById;
static Class *currentlyConstructedClass;
int classId;
@ -137,7 +137,7 @@ public:
* \brief Return the name, under which the class of this object was
* registered.
*/
const char *getClassName() { return classesById->get(classId)->className; }
const char *getClassName() { return classesById.at( classId )->className; }
bool instanceOf (int otherClassId);
};