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Virtual inheritance prototype for select

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This commit is contained in:
Thomas Krijnen
2021-09-06 18:52:37 +02:00
parent 66faea1285
commit 41f2b11234
25 changed files with 8202 additions and 8158 deletions
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src/ifcparse/IfcBaseClass.h
+35 -24
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@@ -33,14 +33,46 @@ class aggregate_of_instance;
namespace IfcUtil {
class IFC_PARSE_API IfcBaseClass {
class IFC_PARSE_API IfcBaseInterface {
protected:
static bool is_null(const IfcBaseInterface* not_this) {
return !not_this;
}
public:
virtual const IfcEntityInstanceData& data() const = 0;
virtual IfcEntityInstanceData& data() = 0;
virtual const IfcParse::declaration& declaration() const = 0;
template <class T>
T* as() {
// @todo: do not allow this to be null in the first place
if (is_null(this)) {
return static_cast<T*>(0);
}
return declaration().is(T::Class())
? dynamic_cast<T*>(this)
: static_cast<T*>(0);
}
template <class T>
const T* as() const {
if (is_null(this)) {
return static_cast<const T*>(0);
}
return declaration().is(T::Class())
? dynamic_cast<const T*>(this)
: static_cast<const T*>(0);
}
};
class IFC_PARSE_API IfcBaseClass : public virtual IfcBaseInterface {
protected:
IfcEntityInstanceData* data_;
static bool is_null(const IfcBaseClass* not_this) {
return !not_this;
}
}
public:
IfcBaseClass() : data_(0) {}
IfcBaseClass(IfcEntityInstanceData* d) : data_(d) {}
@@ -51,27 +83,6 @@ namespace IfcUtil {
void data(IfcEntityInstanceData* d);
virtual const IfcParse::declaration& declaration() const = 0;
template <class T>
T* as() {
// @todo: do not allow this to be null in the first place
if (is_null(this)) {
return static_cast<T*>(0);
}
return declaration().is(T::Class())
? static_cast<T*>(this)
: static_cast<T*>(0);
}
template <class T>
const T* as() const {
if (is_null(this)) {
return static_cast<const T*>(0);
}
return declaration().is(T::Class())
? static_cast<const T*>(this)
: static_cast<const T*>(0);
}
};
class IFC_PARSE_API IfcLateBoundEntity : public IfcBaseClass {