Method canCopy

src/ast/ast.cpp:365–376

    }

    bool Structure::canCopy(bool tempMatters) const {
        if ( circularGuard ) return true;
        circularGuard = true;
        for ( const auto & fd : fields ) {
            if ( !fd.type->canCopy(tempMatters) ) {
                circularGuard = false;
                return false;
            }
        }
        circularGuard = false;
        return true;
    }

    bool Structure::canMove() const {
        if ( circularGuard ) return true;