we can use Span for the cache key here

Change-Id: I77894e3c5e3d68cb2a12abcc0b09f2c042664ba0
Reviewed-on: https://gerrit.libreoffice.org/80315
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/xmlreader/span.hxx b/include/xmlreader/span.hxx
index 038241ef1133..f56059b96274 100644
--- a/include/xmlreader/span.hxx
+++ b/include/xmlreader/span.hxx
@@ -77,6 +77,19 @@ struct SAL_WARN_UNUSED OOO_DLLPUBLIC_XMLREADER Span {
     }
 
     rtl::OUString convertFromUtf8() const;
+
+    std::size_t hashCode() const;
+};
+
+}
+
+namespace std {
+
+template<>
+struct hash<::xmlreader::Span>
+{
+    std::size_t operator()(::xmlreader::Span const & s) const
+    { return s.hashCode(); }
 };
 
 }