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#include "SnapshotSymbolVisitor.h"

#include <cplusplus/Symbols.h>

using namespace CPlusPlus;

SnapshotSymbolVisitor::SnapshotSymbolVisitor(const Snapshot &snapshot)
    : _snapshot(snapshot)
{
}

void SnapshotSymbolVisitor::accept(Document::Ptr doc)
{
    QSet<QString> processed;
    accept(doc, &processed);
}

void SnapshotSymbolVisitor::accept(Document::Ptr doc, QSet<QString> *processed)
{
    if (doc && doc->globalNamespace() && ! processed->contains(doc->fileName())) {
        processed->insert(doc->fileName());

        foreach (const Document::Include &i, doc->resolvedIncludes()) {
            if (Document::Ptr incl = _snapshot.document(i.resolvedFileName()))
                accept(incl, processed);
        }

        std::swap(_document, doc);
        accept(_document->globalNamespace());
        std::swap(_document, doc);
    }
}