From dba1ac1b0e8f5f96974fc1119b318ae6127daa82 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sun, 12 May 2019 15:33:31 -0700
Subject: [PATCH] [config] Disable buffer serialize routines in HB_TINY

Part of https://github.com/harfbuzz/harfbuzz/issues/1652
---
 src/hb-buffer-serialize.cc | 14 +++++++++++++-
 src/hb-config.hh           |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/hb-buffer-serialize.cc b/src/hb-buffer-serialize.cc
index dcbdcea45..d3732fd02 100644
--- a/src/hb-buffer-serialize.cc
+++ b/src/hb-buffer-serialize.cc
@@ -28,8 +28,10 @@
 
 
 static const char *serialize_formats[] = {
+#ifndef HB_NO_BUFFER_SERIALIZE
   "text",
   "json",
+#endif
   nullptr
 };
 
@@ -85,10 +87,12 @@ hb_buffer_serialize_format_from_string (const char *str, int len)
 const char *
 hb_buffer_serialize_format_to_string (hb_buffer_serialize_format_t format)
 {
-  switch (format)
+  switch ((unsigned) format)
   {
+#ifndef HB_NO_BUFFER_SERIALIZE
     case HB_BUFFER_SERIALIZE_FORMAT_TEXT:	return serialize_formats[0];
     case HB_BUFFER_SERIALIZE_FORMAT_JSON:	return serialize_formats[1];
+#endif
     default:
     case HB_BUFFER_SERIALIZE_FORMAT_INVALID:	return nullptr;
   }
@@ -344,6 +348,10 @@ hb_buffer_serialize_glyphs (hb_buffer_t *buffer,
   if (buf_size)
     *buf = '\0';
 
+#ifdef HB_NO_BUFFER_SERIALIZE
+  return 0;
+#endif
+
   assert ((!buffer->len && buffer->content_type == HB_BUFFER_CONTENT_TYPE_INVALID) ||
 	  buffer->content_type == HB_BUFFER_CONTENT_TYPE_GLYPHS);
 
@@ -449,6 +457,10 @@ hb_buffer_deserialize_glyphs (hb_buffer_t *buffer,
     end_ptr = &end;
   *end_ptr = buf;
 
+#ifdef HB_NO_BUFFER_SERIALIZE
+  return false;
+#endif
+
   assert ((!buffer->len && buffer->content_type == HB_BUFFER_CONTENT_TYPE_INVALID) ||
 	  buffer->content_type == HB_BUFFER_CONTENT_TYPE_GLYPHS);
 
diff --git a/src/hb-config.hh b/src/hb-config.hh
index e7e14df6a..2eab7d8b6 100644
--- a/src/hb-config.hh
+++ b/src/hb-config.hh
@@ -45,6 +45,7 @@
 #ifdef HB_LEAN
 #define HB_DISABLE_DEPRECATED
 #define HB_NO_ATEXIT
+#define HB_NO_BUFFER_SERIALIZE
 #define HB_NO_BITMAP
 #define HB_NO_CFF
 #define HB_NO_COLOR