fs: support BigInt in fs.*stat and fs.watchFile

Add the `bigint: true` option to all the `fs.*stat` methods and
`fs.watchFile`.

PR-URL: https://github.com/nodejs/node/pull/20220
Fixes: https://github.com/nodejs/node/issues/12115
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 12 insertions, 4 deletions

diff --git a/lib/internal/fs/utils.js b/lib/internal/fs/utils.js
index a8c64e2b04..7092bbcb63 100644
--- a/lib/internal/fs/utils.js
+++ b/lib/internal/fs/utils.js
@@ -114,7 +114,7 @@ function preprocessSymlinkDestination(path, type, linkPath) {
 }
 
 function dateFromNumeric(num) {
-  return new Date(num + 0.5);
+  return new Date(Number(num) + 0.5);
 }
 
 // Constructor for file stats.
@@ -155,7 +155,15 @@ function Stats(
 }
 
 Stats.prototype._checkModeProperty = function(property) {
-  return ((this.mode & S_IFMT) === property);
+  if (isWindows && (property === S_IFIFO || property === S_IFBLK ||
+    property === S_IFSOCK)) {
+    return false;  // Some types are not available on Windows
+  }
+  if (typeof this.mode === 'bigint') {  // eslint-disable-line valid-typeof
+    // eslint-disable-next-line no-undef
+    return (this.mode & BigInt(S_IFMT)) === BigInt(property);
+  }
+  return (this.mode & S_IFMT) === property;
 };
 
 Stats.prototype.isDirectory = function() {
@@ -189,9 +197,9 @@ Stats.prototype.isSocket = function() {
 function getStatsFromBinding(stats, offset = 0) {
   return new Stats(stats[0 + offset], stats[1 + offset], stats[2 + offset],
                    stats[3 + offset], stats[4 + offset], stats[5 + offset],
-                   stats[6 + offset] < 0 ? undefined : stats[6 + offset],
+                   isWindows ? undefined : stats[6 + offset],  // blksize
                    stats[7 + offset], stats[8 + offset],
-                   stats[9 + offset] < 0 ? undefined : stats[9 + offset],
+                   isWindows ? undefined : stats[9 + offset],  // blocks
                    stats[10 + offset], stats[11 + offset],
                    stats[12 + offset], stats[13 + offset]);
 }