Changeset 973c03 for molecuilder/src/Descriptors/AtomDescriptor.cpp

Timestamp:

Feb 8, 2010, 4:23:03 PM (16 years ago)

Author:

Tillmann Crueger <crueger@…>

Children:

323177

Parents:

86b917

Message:

Improved Descriptor mechanism to allow calculations using descriptors.

File:

• molecuilder/src/Descriptors/AtomDescriptor.cpp (modified) (4 diffs)

molecuilder/src/Descriptors/AtomDescriptor.cpp

@@ -11 +11 @@
 
 #include <boost/bind.hpp>
+#include <cassert>
 
 using namespace std;
@@ -19 +20 @@
 AtomDescriptor::AtomDescriptor()
 {
+}
+
+AtomDescriptor::AtomDescriptor(const AtomDescriptor &desc) {
 }
 
@@ -30 +34 @@
 }
 
-AtomPredicateDescriptor::AtomPredicateDescriptor()
-{
-}
-
-AtomPredicateDescriptor::~AtomPredicateDescriptor()
-{
-}
-
-atom* AtomPredicateDescriptor::find() {
+atom* AtomDescriptor::find() {
   atoms_t atoms = getAtoms();
-  atoms_iter_t res = find_if(atoms.begin(),atoms.end(),boost::bind(&AtomPredicateDescriptor::predicate,this,_1));
+  atoms_iter_t res = find_if(atoms.begin(),atoms.end(),boost::bind(&AtomDescriptor::predicate,this,_1));
   return (res!=atoms.end())?((*res).second):0;
 }
 
-vector<atom*> AtomPredicateDescriptor::findAll() {
+vector<atom*> AtomDescriptor::findAll() {
   vector<atom*> res;
   atoms_t atoms = getAtoms();
@@ -53 +49 @@
   }
 }
+
+// stuff for operators
+
+// AND
+AtomAndDescriptor::AtomAndDescriptor(const AtomDescriptor &_lhs,const AtomDescriptor &_rhs){
+  lhs=_lhs.clone();
+  rhs=_rhs.clone();
+}
+
+AtomAndDescriptor::AtomAndDescriptor(const AtomAndDescriptor &_desc)
+{
+  // the copy constructor needs it's parameter as const to work,
+  // however we need to be able to transfer the ownership of the pointers
+  // to the new method to avoid another cloning.
+  //
+  // the only place where the copy constructor is used for these classes,
+  // is when returning a temporary.
+  // this is one of the very rare cases when const_cast makes sense
+  AtomAndDescriptor &desc = const_cast<AtomAndDescriptor&>(_desc);
+  lhs = desc.lhs;
+  rhs = desc.rhs;
+}
+
+AtomAndDescriptor::~AtomAndDescriptor(){
+}
+
+bool AtomAndDescriptor::predicate(std::pair<int,atom*> atom){
+  return lhs->predicate(atom) && rhs->predicate(atom);
+}
+
+AtomAndDescriptor::desc_ptr AtomAndDescriptor::clone() const{
+  return desc_ptr(new AtomAndDescriptor(*lhs,*rhs));
+}
+
+AtomAndDescriptor operator&&(const AtomDescriptor &lhs, const AtomDescriptor &rhs){
+  return AtomAndDescriptor(lhs,rhs);
+}
+
+// OR
+
+AtomOrDescriptor::AtomOrDescriptor(const AtomDescriptor &_lhs,const AtomDescriptor &_rhs){
+  lhs=_lhs.clone();
+  rhs=_rhs.clone();
+}
+
+AtomOrDescriptor::AtomOrDescriptor(const AtomOrDescriptor &_desc)
+{
+  // the copy constructor needs it's parameter as const to work,
+  // however we need to be able to transfer the ownership of the pointers
+  // to the new method to avoid another cloning.
+  //
+  // the only place where the copy constructor is used for these classes,
+  // is when returning a temporary.
+  // this is one of the very rare cases when const_cast makes sense
+  AtomOrDescriptor &desc = const_cast<AtomOrDescriptor&>(_desc);
+  lhs = desc.lhs;
+  rhs = desc.rhs;
+}
+
+AtomOrDescriptor::~AtomOrDescriptor(){
+}
+
+bool AtomOrDescriptor::predicate(std::pair<int,atom*> atom){
+  return lhs->predicate(atom) || rhs->predicate(atom);
+}
+
+AtomAndDescriptor::desc_ptr AtomOrDescriptor::clone() const{
+  return desc_ptr(new AtomOrDescriptor(*lhs,*rhs));
+}
+
+AtomOrDescriptor  operator||(const AtomDescriptor &lhs, const AtomDescriptor &rhs){
+  return AtomOrDescriptor(lhs,rhs);
+}
+
+// NOT
+
+AtomNotDescriptor::AtomNotDescriptor(const AtomDescriptor &_arg){
+  arg = _arg.clone();
+}
+
+AtomNotDescriptor::AtomNotDescriptor(const AtomNotDescriptor &_desc) {
+  // the copy constructor needs it's parameter as const to work,
+  // however we need to be able to transfer the ownership of the pointers
+  // to the new method to avoid another cloning.
+  //
+  // the only place where the copy constructor is used for these classes,
+  // is when returning a temporary.
+  // this is one of the very rare cases when const_cast makes sense
+  AtomNotDescriptor &desc = const_cast<AtomNotDescriptor&>(_desc);
+  arg = desc.arg;
+}
+
+AtomNotDescriptor::~AtomNotDescriptor()
+{
+}
+
+bool AtomNotDescriptor::predicate(std::pair<int,atom*> atom){
+ return !(arg->predicate(atom));
+}
+
+AtomAndDescriptor::desc_ptr AtomNotDescriptor::clone() const{
+  return desc_ptr(new AtomNotDescriptor(*arg));
+}
+
+AtomNotDescriptor operator!(const AtomDescriptor &arg){
+  return AtomNotDescriptor(arg);
+}