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F2729481
containers.cpp
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Fri, Mar 13, 2:25 AM
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Sun, Mar 15, 2:25 AM (12 h, 26 m)
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rXR Xreate
containers.cpp
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//
// Created by pgess on 3/14/15.
//
#include <clasplayer.h>
#include "query/containers.h"
using namespace std;
using namespace xreate::containers;
using namespace xreate;
Implementation
Query::queryImplementation(xreate::Symbol const &s) {
if (Attachments::exists<Implementation>(s))
{
return Attachments::get<Implementation>(s);
}
return Implementation::create(s);
}
Query::Query(){
Attachments::init<Implementation>();
}
void
Query::init(ClaspLayer* clasp)
{
if (flagIsDataLoaded) return;
map<Symbol, Symbol> prototypes;
map<Symbol, string> roots;
//read all proto data
auto range = clasp->query(Config::get("containers.id.prototypes"));
if (range)
for(ClaspLayer::ModelIterator atom = range->first; atom != range->second; ++atom) {
auto data = ClaspLayer::parse<SymbolPacked, SymbolPacked>(atom->second);
Symbol root = clasp->unpack(get<0> (data));
Symbol prototype = clasp->unpack(get<1> (data));
prototypes[root] = prototype;
}
// fill implementation data for a data sources:
range = clasp->query(Config::get("containers.id.implementations"));
if (range)
for(ClaspLayer::ModelIterator atom = range->first; atom != range->second; ++atom)
{
auto data = ClaspLayer::parse<SymbolPacked, string>(atom->second);
Symbol var = clasp->unpack(get<0>(data));
string implSerialized = get<1>(data);
//data source, has no prototypes:
if (!prototypes.count(var))
{
Implementation impl = Implementation::create(var);
Attachments::put<Implementation>(var, move(impl));
continue;
}
roots.emplace(move(var), move(implSerialized));
}
//fill implementation data for a cluster roots
for (const pair<Symbol, string> & root: roots)
{
Symbol prototype = prototypes[root.first];
while (prototypes.count(prototype)) {
prototype = prototypes.at(prototype);
}
Attachments::put<Implementation>(root.first, Implementation(Attachments::get<Implementation>(prototype)));
}
// read cluster data and fill implementation data for cluster members
range = clasp->query(Config::get("containers.id.clusters"));
if (range)
for(ClaspLayer::ModelIterator atom = range->first; atom != range->second; ++atom)
{
auto info = ClaspLayer::parse<SymbolPacked, SymbolPacked>(atom->second);
Symbol root = clasp->unpack(get<0>(info));
Symbol child = clasp->unpack(get<1>(info));
if (!(child == root) && (Attachments::exists<Implementation>(root))) {
Implementation rootImpl = Attachments::get<Implementation>(root);
Attachments::put<Implementation>(child, move(rootImpl));
}
}
flagIsDataLoaded = true;
}
//static ImplementationData* create(Symbol var, std::string implSerialized, const ImplementationData* implPrototype);
Implementation
Implementation::create(const Symbol &var)
{
//TODO review implementation determination strategy
Expression varDecl = CodeScope::getDeclaration(var);
switch (varDecl.op)
{
case Operator::LIST_RANGE: {
ImplementationRec<ON_THE_FLY> rec{var};
return {ON_THE_FLY, rec};
}
case Operator::LIST: {
return {SOLID, ImplementationRec<SOLID> {varDecl.getOperands().size()}};
}
default: break;
};
ImplementationLinkedList ill(var);
if (ill){
return ill.getImplementationData();
}
assert(false && "Unable to determine proper implementation for the symbol");
return Implementation();
}
Implementation
Implementation::create(const Symbol& var, const std::string& implSerialized)
{
Expression varDecl = CodeScope::getDeclaration(var);
if (implSerialized == Config::get("containers.impl.solid"))
{
return {SOLID, ImplementationRec<SOLID>{varDecl.operands.size()}};
} else if (implSerialized == Config::get("containers.impl.onthefly")) {
return {ON_THE_FLY, ImplementationRec<ON_THE_FLY>{var}};
}
assert(false && "unable to determine proper implementation for the symbol");
return Implementation();
}
ImplementationLinkedList::ImplementationLinkedList(const Symbol& source)
: flagIsValid(false), s(source){
const Expression& sourceExpr = CodeScope::getDeclaration(source);
if (sourceExpr.tags.count(Config::get("containers.id.linkedlist"))){
flagIsValid = true;
Expression tagLinkedlist = sourceExpr.tags.at(Config::get("containers.id.linkedlist"));
assert(tagLinkedlist.operands.size() == 2);
fieldPointer = tagLinkedlist.operands.at(0).getValueString();
terminator = tagLinkedlist.operands.at(1);
}
}
ImplementationLinkedList:: operator bool () const{
return flagIsValid;
}
Implementation
ImplementationLinkedList::getImplementationData() const {
return {ON_THE_FLY, ImplementationRec<ON_THE_FLY>{s}};
}
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