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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-dispatch.hh5
1 files changed, 4 insertions, 1 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-dispatch.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-dispatch.hh
index 1ce3fac9364..7eace86e546 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-dispatch.hh
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-dispatch.hh
@@ -35,14 +35,16 @@
* Dispatch
*/
-template <typename Context, typename Return, unsigned int MaxDebugDepth>
+template <typename Context, typename Return=hb_empty_t, unsigned int MaxDebugDepth=0>
struct hb_dispatch_context_t
{
+ hb_dispatch_context_t () : debug_depth (0) {}
private:
/* https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern */
const Context* thiz () const { return static_cast<const Context *> (this); }
Context* thiz () { return static_cast< Context *> (this); }
public:
+ const char *get_name () { return "UNKNOWN"; }
static constexpr unsigned max_debug_depth = MaxDebugDepth;
typedef Return return_t;
template <typename T, typename F>
@@ -52,6 +54,7 @@ struct hb_dispatch_context_t
{ return obj.dispatch (thiz (), hb_forward<Ts> (ds)...); }
static return_t no_dispatch_return_value () { return Context::default_return_value (); }
static bool stop_sublookup_iteration (const return_t r HB_UNUSED) { return false; }
+ unsigned debug_depth;
};