feat: deprecate Deno.close() (#22066)

For removal in Deno v2.

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

cli/tests/unit/stat_test.ts

@@ -8,7 +8,7 @@ import {
 } from "./test_util.ts";
 
 Deno.test({ permissions: { read: true } }, function fstatSyncSuccess() {
-  const file = Deno.openSync("README.md");
+  using file = Deno.openSync("README.md");
   const fileInfo = Deno.fstatSync(file.rid);
   assert(fileInfo.isFile);
   assert(!fileInfo.isSymlink);
@@ -18,12 +18,10 @@ Deno.test({ permissions: { read: true } }, function fstatSyncSuccess() {
   assert(fileInfo.mtime);
   // The `birthtime` field is not available on Linux before kernel version 4.11.
   assert(fileInfo.birthtime || Deno.build.os === "linux");
-
-  Deno.close(file.rid);
 });
 
 Deno.test({ permissions: { read: true } }, async function fstatSuccess() {
-  const file = await Deno.open("README.md");
+  using file = await Deno.open("README.md");
   const fileInfo = await Deno.fstat(file.rid);
   assert(fileInfo.isFile);
   assert(!fileInfo.isSymlink);
@@ -33,8 +31,6 @@ Deno.test({ permissions: { read: true } }, async function fstatSuccess() {
   assert(fileInfo.mtime);
   // The `birthtime` field is not available on Linux before kernel version 4.11.
   assert(fileInfo.birthtime || Deno.build.os === "linux");
-
-  Deno.close(file.rid);
 });
 
 Deno.test(

cli/tests/unit/sync_test.ts

@@ -5,7 +5,7 @@ Deno.test(
   { permissions: { read: true, write: true } },
   function fdatasyncSyncSuccess() {
     const filename = Deno.makeTempDirSync() + "/test_fdatasyncSync.txt";
-    const file = Deno.openSync(filename, {
+    using file = Deno.openSync(filename, {
       read: true,
       write: true,
       create: true,
@@ -13,8 +13,6 @@ Deno.test(
     const data = new Uint8Array(64);
     Deno.writeSync(file.rid, data);
     Deno.fdatasyncSync(file.rid);
-    assertEquals(Deno.readFileSync(filename), data);
-    Deno.close(file.rid);
     Deno.removeSync(filename);
   },
 );
@@ -23,7 +21,7 @@ Deno.test(
   { permissions: { read: true, write: true } },
   async function fdatasyncSuccess() {
     const filename = (await Deno.makeTempDir()) + "/test_fdatasync.txt";
-    const file = await Deno.open(filename, {
+    using file = await Deno.open(filename, {
       read: true,
       write: true,
       create: true,
@@ -32,7 +30,6 @@ Deno.test(
     await Deno.write(file.rid, data);
     await Deno.fdatasync(file.rid);
     assertEquals(await Deno.readFile(filename), data);
-    Deno.close(file.rid);
     await Deno.remove(filename);
   },
 );
@@ -41,7 +38,7 @@ Deno.test(
   { permissions: { read: true, write: true } },
   function fsyncSyncSuccess() {
     const filename = Deno.makeTempDirSync() + "/test_fsyncSync.txt";
-    const file = Deno.openSync(filename, {
+    using file = Deno.openSync(filename, {
       read: true,
       write: true,
       create: true,
@@ -50,7 +47,6 @@ Deno.test(
     file.truncateSync(size);
     Deno.fsyncSync(file.rid);
     assertEquals(Deno.statSync(filename).size, size);
-    Deno.close(file.rid);
     Deno.removeSync(filename);
   },
 );
@@ -59,7 +55,7 @@ Deno.test(
   { permissions: { read: true, write: true } },
   async function fsyncSuccess() {
     const filename = (await Deno.makeTempDir()) + "/test_fsync.txt";
-    const file = await Deno.open(filename, {
+    using file = await Deno.open(filename, {
       read: true,
       write: true,
       create: true,
@@ -68,7 +64,6 @@ Deno.test(
     await file.truncate(size);
     await Deno.fsync(file.rid);
     assertEquals((await Deno.stat(filename)).size, size);
-    Deno.close(file.rid);
     await Deno.remove(filename);
   },
 );

cli/tests/unit/truncate_test.ts

@@ -5,7 +5,7 @@ Deno.test(
   { permissions: { read: true, write: true } },
   function ftruncateSyncSuccess() {
     const filename = Deno.makeTempDirSync() + "/test_ftruncateSync.txt";
-    const file = Deno.openSync(filename, {
+    using file = Deno.openSync(filename, {
       create: true,
       read: true,
       write: true,
@@ -18,7 +18,6 @@ Deno.test(
     file.truncateSync(-5);
     assertEquals(Deno.readFileSync(filename).byteLength, 0);
 
-    Deno.close(file.rid);
     Deno.removeSync(filename);
   },
 );
@@ -27,7 +26,7 @@ Deno.test(
   { permissions: { read: true, write: true } },
   async function ftruncateSuccess() {
     const filename = Deno.makeTempDirSync() + "/test_ftruncate.txt";
-    const file = await Deno.open(filename, {
+    using file = await Deno.open(filename, {
       create: true,
       read: true,
       write: true,
@@ -40,7 +39,6 @@ Deno.test(
     await file.truncate(-5);
     assertEquals((await Deno.readFile(filename)).byteLength, 0);
 
-    Deno.close(file.rid);
     await Deno.remove(filename);
   },
 );

cli/tests/unit_node/_fs/_fs_appendFile_test.ts

@@ -70,7 +70,7 @@ Deno.test({
   name: "Async: Data is written to passed in rid",
   async fn() {
     const tempFile: string = await Deno.makeTempFile();
-    const file: Deno.FsFile = await Deno.open(tempFile, {
+    using file = await Deno.open(tempFile, {
       create: true,
       write: true,
       read: true,
@@ -88,7 +88,6 @@ Deno.test({
         fail("No error expected");
       })
       .finally(async () => {
-        Deno.close(file.rid);
         await Deno.remove(tempFile);
       });
   },
@@ -160,13 +159,12 @@ Deno.test({
   name: "Sync: Data is written to passed in rid",
   fn() {
     const tempFile: string = Deno.makeTempFileSync();
-    const file: Deno.FsFile = Deno.openSync(tempFile, {
+    using file = Deno.openSync(tempFile, {
       create: true,
       write: true,
       read: true,
     });
     appendFileSync(file.rid, "hello world");
-    Deno.close(file.rid);
     const data = Deno.readFileSync(tempFile);
     assertEquals(decoder.decode(data), "hello world");
     Deno.removeSync(tempFile);

cli/tests/unit_node/_fs/_fs_fdatasync_test.ts

@@ -6,32 +6,31 @@ Deno.test({
   name:
     "ASYNC: flush any pending data operations of the given file stream to disk",
   async fn() {
-    const file: string = await Deno.makeTempFile();
+    const filePath = await Deno.makeTempFile();
-    const { rid } = await Deno.open(file, {
+    using file = await Deno.open(filePath, {
       read: true,
       write: true,
       create: true,
     });
     const data = new Uint8Array(64);
-    await Deno.write(rid, data);
+    await Deno.write(file.rid, data);
 
     await new Promise<void>((resolve, reject) => {
-      fdatasync(rid, (err: Error | null) => {
+      fdatasync(file.rid, (err: Error | null) => {
         if (err !== null) reject();
         else resolve();
       });
     })
       .then(
         async () => {
-          assertEquals(await Deno.readFile(file), data);
+          assertEquals(await Deno.readFile(filePath), data);
         },
         () => {
           fail("No error expected");
         },
       )
       .finally(async () => {
-        Deno.close(rid);
+        await Deno.remove(filePath);
-        await Deno.remove(file);
       });
   },
 });
@@ -40,21 +39,20 @@ Deno.test({
   name:
     "SYNC: flush any pending data operations of the given file stream to disk.",
   fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    const { rid } = Deno.openSync(file, {
+    using file = Deno.openSync(filePath, {
       read: true,
       write: true,
       create: true,
     });
     const data = new Uint8Array(64);
-    Deno.writeSync(rid, data);
+    Deno.writeSync(file.rid, data);
 
     try {
-      fdatasyncSync(rid);
+      fdatasyncSync(file.rid);
-      assertEquals(Deno.readFileSync(file), data);
+      assertEquals(Deno.readFileSync(filePath), data);
     } finally {
-      Deno.close(rid);
+      Deno.removeSync(filePath);
-      Deno.removeSync(file);
     }
   },
 });

cli/tests/unit_node/_fs/_fs_fstat_test.ts

@@ -7,24 +7,23 @@ import type { BigIntStats, Stats } from "node:fs";
 Deno.test({
   name: "ASYNC: get a file Stats",
   async fn() {
-    const file = await Deno.makeTempFile();
+    const filePath = await Deno.makeTempFile();
-    const { rid } = await Deno.open(file);
+    using file = await Deno.open(filePath);
 
     await new Promise<Stats>((resolve, reject) => {
-      fstat(rid, (err: Error | null, stat: Stats) => {
+      fstat(file.rid, (err: Error | null, stat: Stats) => {
         if (err) reject(err);
         resolve(stat);
       });
     })
       .then(
         (stat) => {
-          assertStats(stat, Deno.fstatSync(rid));
+          assertStats(stat, Deno.fstatSync(file.rid));
         },
         () => fail(),
       )
       .finally(() => {
-        Deno.removeSync(file);
+        Deno.removeSync(filePath);
-        Deno.close(rid);
       });
   },
 });
@@ -32,22 +31,25 @@ Deno.test({
 Deno.test({
   name: "ASYNC: get a file BigInt Stats",
   async fn() {
-    const file = await Deno.makeTempFile();
+    const filePath = await Deno.makeTempFile();
-    const { rid } = await Deno.open(file);
+    using file = await Deno.open(filePath);
 
     await new Promise<BigIntStats>((resolve, reject) => {
-      fstat(rid, { bigint: true }, (err: Error | null, stat: BigIntStats) => {
+      fstat(
+        file.rid,
+        { bigint: true },
+        (err: Error | null, stat: BigIntStats) => {
           if (err) reject(err);
           resolve(stat);
-      });
+        },
+      );
     })
       .then(
-        (stat) => assertStatsBigInt(stat, Deno.fstatSync(rid)),
+        (stat) => assertStatsBigInt(stat, Deno.fstatSync(file.rid)),
         () => fail(),
       )
       .finally(() => {
-        Deno.removeSync(file);
+        Deno.removeSync(filePath);
-        Deno.close(rid);
       });
   },
 });
@@ -55,14 +57,13 @@ Deno.test({
 Deno.test({
   name: "SYNC: get a file Stats",
   fn() {
-    const file = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    const { rid } = Deno.openSync(file);
+    using file = Deno.openSync(filePath);
 
     try {
-      assertStats(fstatSync(rid), Deno.fstatSync(rid));
+      assertStats(fstatSync(file.rid), Deno.fstatSync(file.rid));
     } finally {
-      Deno.removeSync(file);
+      Deno.removeSync(filePath);
-      Deno.close(rid);
     }
   },
 });
@@ -70,14 +71,16 @@ Deno.test({
 Deno.test({
   name: "SYNC: get a file BigInt Stats",
   fn() {
-    const file = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    const { rid } = Deno.openSync(file);
+    using file = Deno.openSync(filePath);
 
     try {
-      assertStatsBigInt(fstatSync(rid, { bigint: true }), Deno.fstatSync(rid));
+      assertStatsBigInt(
+        fstatSync(file.rid, { bigint: true }),
+        Deno.fstatSync(file.rid),
+      );
     } finally {
-      Deno.removeSync(file);
+      Deno.removeSync(filePath);
-      Deno.close(rid);
     }
   },
 });

cli/tests/unit_node/_fs/_fs_ftruncate_test.ts

@@ -23,23 +23,23 @@ Deno.test({
 Deno.test({
   name: "ASYNC: truncate entire file contents",
   async fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    await Deno.writeTextFile(file, "hello world");
+    await Deno.writeTextFile(filePath, "hello world");
-    const { rid } = await Deno.open(file, {
+    using file = await Deno.open(filePath, {
       read: true,
       write: true,
       create: true,
     });
 
     await new Promise<void>((resolve, reject) => {
-      ftruncate(rid, (err: Error | null) => {
+      ftruncate(file.rid, (err: Error | null) => {
         if (err !== null) reject();
         else resolve();
       });
     })
       .then(
         () => {
-          const fileInfo: Deno.FileInfo = Deno.lstatSync(file);
+          const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
           assertEquals(fileInfo.size, 0);
         },
         () => {
@@ -47,8 +47,7 @@ Deno.test({
         },
       )
       .finally(() => {
-        Deno.removeSync(file);
+        Deno.removeSync(filePath);
-        Deno.close(rid);
       });
   },
 });
@@ -56,23 +55,23 @@ Deno.test({
 Deno.test({
   name: "ASYNC: truncate file to a size of precisely len bytes",
   async fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    await Deno.writeTextFile(file, "hello world");
+    await Deno.writeTextFile(filePath, "hello world");
-    const { rid } = await Deno.open(file, {
+    using file = await Deno.open(filePath, {
       read: true,
       write: true,
       create: true,
     });
 
     await new Promise<void>((resolve, reject) => {
-      ftruncate(rid, 3, (err: Error | null) => {
+      ftruncate(file.rid, 3, (err: Error | null) => {
         if (err !== null) reject();
         else resolve();
       });
     })
       .then(
         () => {
-          const fileInfo: Deno.FileInfo = Deno.lstatSync(file);
+          const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
           assertEquals(fileInfo.size, 3);
         },
         () => {
@@ -80,8 +79,7 @@ Deno.test({
         },
       )
       .finally(() => {
-        Deno.removeSync(file);
+        Deno.removeSync(filePath);
-        Deno.close(rid);
       });
   },
 });
@@ -89,21 +87,20 @@ Deno.test({
 Deno.test({
   name: "SYNC: truncate entire file contents",
   fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    Deno.writeFileSync(file, new TextEncoder().encode("hello world"));
+    Deno.writeFileSync(filePath, new TextEncoder().encode("hello world"));
-    const { rid } = Deno.openSync(file, {
+    using file = Deno.openSync(filePath, {
       read: true,
       write: true,
       create: true,
     });
 
     try {
-      ftruncateSync(rid);
+      ftruncateSync(file.rid);
-      const fileInfo: Deno.FileInfo = Deno.lstatSync(file);
+      const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
       assertEquals(fileInfo.size, 0);
     } finally {
-      Deno.removeSync(file);
+      Deno.removeSync(filePath);
-      Deno.close(rid);
     }
   },
 });
@@ -111,21 +108,20 @@ Deno.test({
 Deno.test({
   name: "SYNC: truncate file to a size of precisely len bytes",
   fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    Deno.writeFileSync(file, new TextEncoder().encode("hello world"));
+    Deno.writeFileSync(filePath, new TextEncoder().encode("hello world"));
-    const { rid } = Deno.openSync(file, {
+    using file = Deno.openSync(filePath, {
       read: true,
       write: true,
       create: true,
     });
 
     try {
-      ftruncateSync(rid, 3);
+      ftruncateSync(file.rid, 3);
-      const fileInfo: Deno.FileInfo = Deno.lstatSync(file);
+      const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
       assertEquals(fileInfo.size, 3);
     } finally {
-      Deno.removeSync(file);
+      Deno.removeSync(filePath);
-      Deno.close(rid);
     }
   },
 });

cli/tests/unit_node/_fs/_fs_futimes_test.ts

@@ -12,18 +12,18 @@ Deno.test({
   name:
     "ASYNC: change the file system timestamps of the object referenced by path",
   async fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    const { rid } = await Deno.open(file, { create: true, write: true });
+    using file = await Deno.open(filePath, { create: true, write: true });
 
     await new Promise<void>((resolve, reject) => {
-      futimes(rid, randomDate, randomDate, (err: Error | null) => {
+      futimes(file.rid, randomDate, randomDate, (err: Error | null) => {
         if (err !== null) reject();
         else resolve();
       });
     })
       .then(
         () => {
-          const fileInfo: Deno.FileInfo = Deno.lstatSync(file);
+          const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
           assertEquals(fileInfo.mtime, randomDate);
           assertEquals(fileInfo.atime, randomDate);
         },
@@ -32,8 +32,7 @@ Deno.test({
         },
       )
       .finally(() => {
-        Deno.removeSync(file);
+        Deno.removeSync(filePath);
-        Deno.close(rid);
       });
   },
 });
@@ -68,19 +67,18 @@ Deno.test({
   name:
     "SYNC: change the file system timestamps of the object referenced by path",
   fn() {
-    const file: string = Deno.makeTempFileSync();
+    const filePath = Deno.makeTempFileSync();
-    const { rid } = Deno.openSync(file, { create: true, write: true });
+    using file = Deno.openSync(filePath, { create: true, write: true });
 
     try {
-      futimesSync(rid, randomDate, randomDate);
+      futimesSync(file.rid, randomDate, randomDate);
 
-      const fileInfo: Deno.FileInfo = Deno.lstatSync(file);
+      const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
 
       assertEquals(fileInfo.mtime, randomDate);
       assertEquals(fileInfo.atime, randomDate);
     } finally {
-      Deno.removeSync(file);
+      Deno.removeSync(filePath);
-      Deno.close(rid);
     }
   },
 });

cli/tests/unit_node/_fs/_fs_writeFile_test.ts

@@ -107,7 +107,7 @@ Deno.test(
   "Data is written to correct rid",
   async function testCorrectWriteUsingRid() {
     const tempFile: string = await Deno.makeTempFile();
-    const file: Deno.FsFile = await Deno.open(tempFile, {
+    using file = await Deno.open(tempFile, {
       create: true,
       write: true,
       read: true,
@@ -119,7 +119,6 @@ Deno.test(
         resolve();
       });
     });
-    Deno.close(file.rid);
 
     const data = await Deno.readFile(tempFile);
     await Deno.remove(tempFile);
@@ -213,7 +212,7 @@ Deno.test(
     if (Deno.build.os === "windows") return;
 
     const filename: string = await Deno.makeTempFile();
-    const file: Deno.FsFile = await Deno.open(filename, {
+    using file = await Deno.open(filename, {
       create: true,
       write: true,
       read: true,
@@ -225,7 +224,6 @@ Deno.test(
         resolve();
       });
     });
-    Deno.close(file.rid);
 
     const fileInfo = await Deno.stat(filename);
     await Deno.remove(filename);
@@ -264,14 +262,13 @@ Deno.test(
   "Data is written synchronously to correct rid",
   function testCorrectWriteSyncUsingRid() {
     const tempFile: string = Deno.makeTempFileSync();
-    const file: Deno.FsFile = Deno.openSync(tempFile, {
+    using file = Deno.openSync(tempFile, {
       create: true,
       write: true,
       read: true,
     });
 
     writeFileSync(file.rid, "hello world");
-    Deno.close(file.rid);
 
     const data = Deno.readFileSync(tempFile);
     Deno.removeSync(tempFile);

cli/tests/unit_node/_fs/_fs_write_test.ts

@@ -9,7 +9,7 @@ Deno.test({
   name: "Data is written to the file with the correct length",
   async fn() {
     const tempFile: string = await Deno.makeTempFile();
-    const file: Deno.FsFile = await Deno.open(tempFile, {
+    using file = await Deno.open(tempFile, {
       create: true,
       write: true,
       read: true,
@@ -21,7 +21,6 @@ Deno.test({
         resolve(nwritten);
       });
     });
-    Deno.close(file.rid);
 
     const data = await Deno.readFile(tempFile);
     await Deno.remove(tempFile);
@@ -35,14 +34,13 @@ Deno.test({
   name: "Data is written synchronously to the file with the correct length",
   fn() {
     const tempFile: string = Deno.makeTempFileSync();
-    const file: Deno.FsFile = Deno.openSync(tempFile, {
+    using file = Deno.openSync(tempFile, {
       create: true,
       write: true,
       read: true,
     });
     const buffer = Buffer.from("hello world");
     const bytesWrite = writeSync(file.rid, buffer, 0, 5);
-    Deno.close(file.rid);
 
     const data = Deno.readFileSync(tempFile);
     Deno.removeSync(tempFile);

cli/tests/unit_node/tty_test.ts

@@ -10,9 +10,8 @@ Deno.test("[node/tty isatty] returns true when fd is a tty, false otherwise", ()
   assert(Deno.stdout.isTerminal() === isatty(Deno.stdout.rid));
   assert(Deno.stderr.isTerminal() === isatty(Deno.stderr.rid));
 
-  const file = Deno.openSync("README.md");
+  using file = Deno.openSync("README.md");
   assert(!isatty(file.rid));
-  Deno.close(file.rid);
 });
 
 Deno.test("[node/tty isatty] returns false for irrelevant values", () => {

cli/tsc/dts/lib.deno.ns.d.ts

@@ -1977,11 +1977,10 @@ declare namespace Deno {
    *
    * ```ts
    * // if "/foo/bar.txt" contains the text "hello world":
-   * const file = await Deno.open("/foo/bar.txt");
+   * using file = await Deno.open("/foo/bar.txt");
    * const buf = new Uint8Array(100);
    * const numberOfBytesRead = await Deno.read(file.rid, buf); // 11 bytes
    * const text = new TextDecoder().decode(buf);  // "hello world"
-   * Deno.close(file.rid);
    * ```
    *
    * @deprecated Use `reader.read()` instead. {@linkcode Deno.read} will be
@@ -2010,11 +2009,10 @@ declare namespace Deno {
    *
    * ```ts
    * // if "/foo/bar.txt" contains the text "hello world":
-   * const file = Deno.openSync("/foo/bar.txt");
+   * using file = Deno.openSync("/foo/bar.txt");
    * const buf = new Uint8Array(100);
    * const numberOfBytesRead = Deno.readSync(file.rid, buf); // 11 bytes
    * const text = new TextDecoder().decode(buf);  // "hello world"
-   * Deno.close(file.rid);
    * ```
    *
    * @deprecated Use `reader.readSync()` instead. {@linkcode Deno.readSync}
@@ -2037,9 +2035,8 @@ declare namespace Deno {
    * ```ts
    * const encoder = new TextEncoder();
    * const data = encoder.encode("Hello world");
-   * const file = await Deno.open("/foo/bar.txt", { write: true });
+   * using file = await Deno.open("/foo/bar.txt", { write: true });
    * const bytesWritten = await Deno.write(file.rid, data); // 11
-   * Deno.close(file.rid);
    * ```
    *
    * @category I/O
@@ -2060,9 +2057,8 @@ declare namespace Deno {
    * ```ts
    * const encoder = new TextEncoder();
    * const data = encoder.encode("Hello world");
-   * const file = Deno.openSync("/foo/bar.txt", { write: true });
+   * using file = Deno.openSync("/foo/bar.txt", { write: true });
    * const bytesWritten = Deno.writeSync(file.rid, data); // 11
-   * Deno.close(file.rid);
    * ```
    *
    * @category I/O
@@ -2268,6 +2264,9 @@ declare namespace Deno {
    * // do work with "file" object
    * ```
    *
+   * @deprecated Use `.close()` method on the resource instead.
+   * {@linkcode Deno.close} will be removed in Deno 2.0.
+   *
    * @category I/O
    */
   export function close(rid: number): void;
@@ -2860,8 +2859,6 @@ declare namespace Deno {
    * const ttyRid = Deno.openSync("/dev/tty6").rid;
    * console.log(Deno.isatty(nonTTYRid)); // false
    * console.log(Deno.isatty(ttyRid)); // true
-   * Deno.close(nonTTYRid);
-   * Deno.close(ttyRid);
    * ```
    *
    * @deprecated Use `Deno.stdin.isTerminal()`, `Deno.stdout.isTerminal()` or

ext/node/polyfills/_fs/_fs_close.ts

@@ -5,13 +5,16 @@
 
 import type { CallbackWithError } from "ext:deno_node/_fs/_fs_common.ts";
 import { getValidatedFd } from "ext:deno_node/internal/fs/utils.mjs";
+import { core } from "ext:core/mod.js";
 
 export function close(fd: number, callback: CallbackWithError) {
   fd = getValidatedFd(fd);
   setTimeout(() => {
     let error = null;
     try {
-      Deno.close(fd);
+      // TODO(@littledivy): Treat `fd` as real file descriptor. `rid` is an
+      // implementation detail and may change.
+      core.close(fd);
     } catch (err) {
       error = err instanceof Error ? err : new Error("[non-error thrown]");
     }
@@ -21,5 +24,7 @@ export function close(fd: number, callback: CallbackWithError) {
 
 export function closeSync(fd: number) {
   fd = getValidatedFd(fd);
-  Deno.close(fd);
+  // TODO(@littledivy): Treat `fd` as real file descriptor. `rid` is an
+  // implementation detail and may change.
+  core.close(fd);
 }

ext/node/polyfills/internal/fs/handle.ts

@@ -12,6 +12,7 @@ import {
   ReadOptions,
   TextOptionsArgument,
 } from "ext:deno_node/_fs/_fs_common.ts";
+import { core } from "ext:core/mod.js";
 
 interface WriteResult {
   bytesWritten: number;
@@ -134,7 +135,7 @@ export class FileHandle extends EventEmitter {
 
   close(): Promise<void> {
     // Note that Deno.close is not async
-    return Promise.resolve(Deno.close(this.fd));
+    return Promise.resolve(core.close(this.fd));
   }
 }
 

runtime/js/99_main.js

@@ -542,7 +542,14 @@ const finalDenoNs = {
     internals.warnOnDeprecatedApi("Deno.resources()", new Error().stack);
     return core.resources();
   },
-  close: core.close,
+  close(rid) {
+    internals.warnOnDeprecatedApi(
+      "Deno.close()",
+      new Error().stack,
+      "Use `closer.close()` instead.",
+    );
+    core.close(rid);
+  },
   ...denoNs,
   // Deno.test and Deno.bench are noops here, but kept for compatibility; so
   // that they don't cause errors when used outside of `deno test`/`deno bench`