- Address warnings about 64-bit to 32-bit conversions.

runtime/bin/file_macos.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_MACOS)
 
 #include "bin/file.h"
 
 #include <errno.h>  // NOLINT
@@ skipping 60 matching lines @@
 }
 
 
 int64_t File::Write(const void* buffer, int64_t num_bytes) {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(write(handle_->fd(), buffer,
                                                 num_bytes));
 }
 
 
-off64_t File::Position() {
+int64_t File::Position() {
   ASSERT(handle_->fd() >= 0);
   return lseek(handle_->fd(), 0, SEEK_CUR);
 }
 
 
-bool File::SetPosition(off64_t position) {
+bool File::SetPosition(int64_t position) {
   ASSERT(handle_->fd() >= 0);
   return lseek(handle_->fd(), position, SEEK_SET) >= 0;
 }
 
 
-bool File::Truncate(off64_t length) {
+bool File::Truncate(int64_t length) {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
       ftruncate(handle_->fd(), length) != -1);
 }
 
 
 bool File::Flush() {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(fsync(handle_->fd()) != -1);
 }
 
 
-off64_t File::Length() {
+int64_t File::Length() {
   ASSERT(handle_->fd() >= 0);
   struct stat st;
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(fstat(handle_->fd(), &st)) == 0) {
     return st.st_size;
   }
   return -1;
 }
 
 
 File* File::Open(const char* name, FileOpenMode mode) {
@@ skipping 12 matching lines @@
   }
   if ((mode & kTruncate) != 0) {
     flags = flags | O_TRUNC;
   }
   int fd = TEMP_FAILURE_RETRY_BLOCK_SIGNALS(open(name, flags, 0666));
   if (fd < 0) {
     return NULL;
   }
   FDUtils::SetCloseOnExec(fd);
   if (((mode & kWrite) != 0) && ((mode & kTruncate) == 0)) {
-    off64_t position = lseek(fd, 0, SEEK_END);
+    int64_t position = lseek(fd, 0, SEEK_END);
     if (position < 0) {
       return NULL;
     }
   }
   return new File(new FileHandle(fd));
 }
 
 
 File* File::OpenStdio(int fd) {
   if (fd < 0 || 2 < fd) return NULL;
@@ skipping 82 matching lines @@
     return copyfile(old_path, new_path, NULL, COPYFILE_ALL) == 0;
   } else if (type == kIsDirectory) {
     errno = EISDIR;
   } else {
     errno = ENOENT;
   }
   return false;
 }
 
 
-off64_t File::LengthFromPath(const char* name) {
+int64_t File::LengthFromPath(const char* name) {
   struct stat st;
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(stat(name, &st)) == 0) {
     return st.st_size;
   }
   return -1;
 }
 
 
 void File::Stat(const char* name, int64_t* data) {
   struct stat st;
@@ skipping 125 matching lines @@
   return (file_1_info.st_ino == file_2_info.st_ino &&
           file_1_info.st_dev == file_2_info.st_dev) ?
       File::kIdentical :
       File::kDifferent;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_MACOS)