Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc / deps / grpc / third_party / upb / upb / bindings / lua / upb / pb.c

diff --git a/legacy-libs/grpc/deps/grpc/third_party/upb/upb/bindings/lua/upb/pb.c b/legacy-libs/grpc/deps/grpc/third_party/upb/upb/bindings/lua/upb/pb.c
new file mode 100644 (file)
index 0000000..266bd97
--- /dev/null
+++ b/legacy-libs/grpc/deps/grpc/third_party/upb/upb/bindings/lua/upb/pb.c
@@ -0,0 +1,56 @@
+/*
+** require("upb.pb") -- A Lua extension for upb.pb.
+**
+** Exposes all the types defined in upb/pb/{*}.h
+** Also defines a few convenience functions on top.
+*/
+
+#include "upb/bindings/lua/upb.h"
+#include "upb/decode.h"
+#include "upb/encode.h"
+
+#define LUPB_PBDECODERMETHOD "lupb.pb.decodermethod"
+
+static int lupb_pb_decode(lua_State *L) {
+  size_t len;
+  const upb_msglayout *layout;
+  upb_msg *msg = lupb_msg_checkmsg2(L, 1, &layout);
+  const char *pb = lua_tolstring(L, 2, &len);
+
+  upb_decode(pb, len, msg, layout, lupb_arena_get(L));
+  /* TODO(haberman): check for error. */
+
+  return 0;
+}
+
+static int lupb_pb_encode(lua_State *L) {
+  const upb_msglayout *layout;
+  const upb_msg *msg = lupb_msg_checkmsg2(L, 1, &layout);
+  upb_arena *arena = upb_arena_new();
+  size_t size;
+  char *result;
+
+  result = upb_encode(msg, (const void*)layout, arena, &size);
+
+  /* Free resources before we potentially bail on error. */
+  lua_pushlstring(L, result, size);
+  upb_arena_free(arena);
+  /* TODO(haberman): check for error. */
+
+  return 1;
+}
+
+static const struct luaL_Reg toplevel_m[] = {
+  {"decode", lupb_pb_decode},
+  {"encode", lupb_pb_encode},
+  {NULL, NULL}
+};
+
+int luaopen_upb_pb_c(lua_State *L) {
+  static char module_key;
+  if (lupb_openlib(L, &module_key, "upb.pb_c", toplevel_m)) {
+    return 1;
+  }
+
+  return 1;
+}