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memoize calls to xml::qname builder

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This commit is contained in:
Thomas Fussell 2017-09-08 17:39:59 -04:00
parent 53d7dbb67e
commit 85010f9f11
1 changed files with 16 additions and 2 deletions
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18
source/detail/serialization/xlsx_consumer.cpp
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@ -58,9 +58,23 @@ struct hash<xml::qname>
namespace {
xml::qname qn(const std::string &namespace_, const std::string &name)
xml::qname &qn(const std::string &namespace_, const std::string &name)
{
return xml::qname(xlnt::constants::ns(namespace_), name);
static auto &memo = *new std::unordered_map<std::string, std::unordered_map<std::string, xml::qname>>();
if (!memo.count(namespace_))
{
memo[namespace_] = std::unordered_map<std::string, xml::qname>();
}
auto &ns_memo = memo[namespace_];
if (!ns_memo.count(name))
{
ns_memo[name] = xml::qname(xlnt::constants::ns(namespace_), name);
}
return ns_memo[name];
}
#ifdef THROW_ON_INVALID_XML