fmt glue.c

src/ffi/glue/glue.c

@@ -20,13 +20,13 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <errno.h>
 
-#include <lua.h>
 #include <lauxlib.h>
+#include <lua.h>
 #include <lualib.h>
 
 // Macros taken from https://gcc.gnu.org/onlinedocs/cpp/Stringification.html
@@ -50,28 +50,40 @@ typedef struct rs_item {
 #define TY_COMMENT 4
 #define TY_RAW 5
 
-#define RS_INT(name, val)    {TY_INT,     name, .int_val=val}
+#define RS_INT(name, val)                                                      \
-#define RS_LUAINT(name, val) {TY_LUAINT,  name, .lua_int_val=val}
+  { TY_INT, name, .int_val = val }
-#define RS_STR(name, val)    {TY_STR,     name, .str_val=val}
+#define RS_LUAINT(name, val)                                                   \
-#define RS_TYPE(name, val)   {TY_TYPE,    name, .str_val=val}
+  { TY_LUAINT, name, .lua_int_val = val }
-#define RS_COMMENT(val)      {TY_COMMENT, NULL, .str_val=val}
+#define RS_STR(name, val)                                                      \
-#define RS_RAW(val)          {TY_RAW,     NULL, .str_val=val}
+  { TY_STR, name, .str_val = val }
+#define RS_TYPE(name, val)                                                     \
+  { TY_TYPE, name, .str_val = val }
+#define RS_COMMENT(val)                                                        \
+  { TY_COMMENT, NULL, .str_val = val }
+#define RS_RAW(val)                                                            \
+  { TY_RAW, NULL, .str_val = val }
 
 const char *rs_int_type(int width) {
   switch (width) {
   default:
-    case 2: return "i16";
+  case 2:
-    case 4: return "i32";
+    return "i16";
-    case 8: return "i64";
+  case 4:
+    return "i32";
+  case 8:
+    return "i64";
   }
 }
 
 const char *rs_uint_type(int width) {
   switch (width) {
   default:
-    case 2: return "u16";
+  case 2:
-    case 4: return "u32";
+    return "u16";
-    case 8: return "u64";
+  case 4:
+    return "u32";
+  case 8:
+    return "u64";
   }
 }
 
@@ -79,7 +91,8 @@ int try_write(char** str, char c, size_t n, size_t* written, size_t szstr) {
   if (szstr - *written < n) {
     return 0;
   }
-  for (; n; n--, *written++) *(*str)++ = c;
+  for (; n; n--, *written++)
+    *(*str)++ = c;
   return 1;
 }
 
@@ -92,10 +105,12 @@ size_t escape(const char* in, char* out, size_t szout) {
   while (cur = *in++) {
     switch (cur) {
     case '\\':
-        if (!try_write(&out, cur, 2, &written, szout)) goto finalize;
+      if (!try_write(&out, cur, 2, &written, szout))
+        goto finalize;
       break;
     default:
-        if (!try_write(&out, cur, 1, &written, szout)) goto finalize;
+      if (!try_write(&out, cur, 1, &written, szout))
+        goto finalize;
       break;
     }
   }
@@ -113,7 +128,8 @@ int write_int_item(FILE* f, const char* name, int value) {
 }
 
 int write_lua_int_item(FILE *f, const char *name, LUA_INTEGER value) {
-  return fprintf(f, "pub const %s: LUA_INTEGER = "LUA_INTEGER_FMT";\n", name, value);
+  return fprintf(f, "pub const %s: LUA_INTEGER = " LUA_INTEGER_FMT ";\n", name,
+                 value);
 }
 
 int write_str_item(FILE *f, const char *name, const char *value) {
@@ -135,26 +151,32 @@ int write_comment(FILE* f, const char* value) {
   return fprintf(f, "/* %s */\n", value);
 }
 
-int write_raw(FILE* f, const char* value) {
+int write_raw(FILE *f, const char *value) { return fputs(value, f) >= 0; }
-  return fputs(value, f) >= 0;
-}
 
 int write_item(FILE *f, const rs_item *c) {
   switch (c->type) {
-    case TY_INT:     return write_int_item(f, c->name, c->int_val);
+  case TY_INT:
-    case TY_LUAINT:  return write_lua_int_item(f, c->name, c->lua_int_val);
+    return write_int_item(f, c->name, c->int_val);
-    case TY_STR:     return write_str_item(f, c->name, c->str_val);
+  case TY_LUAINT:
-    case TY_TYPE:    return write_type(f, c->name, c->str_val);
+    return write_lua_int_item(f, c->name, c->lua_int_val);
-    case TY_COMMENT: return write_comment(f, c->str_val);
+  case TY_STR:
-    case TY_RAW:     return write_raw(f, c->str_val);
+    return write_str_item(f, c->name, c->str_val);
-    default:         return 0;
+  case TY_TYPE:
+    return write_type(f, c->name, c->str_val);
+  case TY_COMMENT:
+    return write_comment(f, c->str_val);
+  case TY_RAW:
+    return write_raw(f, c->str_val);
+  default:
+    return 0;
   }
 }
 
 int write_items_(FILE *f, const rs_item items[], size_t num) {
   size_t i;
   for (i = 0; i < num; i++) {
-    if (!write_item(f, &items[i])) return 0;
+    if (!write_item(f, &items[i]))
+      return 0;
   }
   return 1;
 }
@@ -180,7 +202,7 @@ int main(int argc, const char** argv) {
       RS_COMMENT("this file was generated by glue.c; do not modify it by hand"),
       RS_RAW("use libc::*;\n"),
 
-    // == luaconf.h ===========================================================
+      // == luaconf.h ==========================================================
 
       RS_COMMENT("luaconf.h"),
       RS_STR("LUA_VDIR", LUA_VDIR),
@@ -202,7 +224,7 @@ int main(int argc, const char** argv) {
       RS_LUAINT("LUA_MAXINTEGER", LUA_MAXINTEGER),
       RS_LUAINT("LUA_MININTEGER", LUA_MININTEGER),
 
-    // == lua.h ===============================================================
+      // == lua.h ==============================================================
 
       RS_COMMENT("lua.h"),
       RS_STR("LUA_VERSION_MAJOR", LUA_VERSION_MAJOR),
@@ -215,13 +237,13 @@ int main(int argc, const char** argv) {
       RS_STR("LUA_AUTHORS", LUA_AUTHORS),
       RS_INT("LUA_REGISTRYINDEX", LUA_REGISTRYINDEX),
 
-    // == lauxlib.h ===========================================================
+      // == lauxlib.h ==========================================================
 
       RS_COMMENT("lauxlib.h"),
       RS_INT("LUAL_NUMSIZES", LUAL_NUMSIZES),
       RS_STR("LUA_FILEHANDLE", LUA_FILEHANDLE),
 
-    // == lualib.h ============================================================
+      // == lualib.h ===========================================================
 
       RS_COMMENT("lualib.h"),
       RS_STR("LUA_COLIBNAME", LUA_COLIBNAME),