fix(std/io): remove trivial internal util.ts module (#8032)

std/io/bufio_test.ts

@@ -17,7 +17,6 @@ import {
 import * as iotest from "./_iotest.ts";
 import { StringReader } from "./readers.ts";
 import { StringWriter } from "./writers.ts";
-import { charCode } from "./util.ts";
 import { copyBytes } from "../bytes/mod.ts";
 
 const encoder = new TextEncoder();
@@ -140,15 +139,15 @@ Deno.test("bufioBufferFull", async function (): Promise<void> {
   const decoder = new TextDecoder();
 
   try {
-    await buf.readSlice(charCode("!"));
+    await buf.readSlice("!".charCodeAt(0));
     fail("readSlice should throw");
   } catch (err) {
     assert(err instanceof BufferFullError);
     assert(err.partial instanceof Uint8Array);
     assertEquals(decoder.decode(err.partial), "And now, hello, ");
   }
 
-  const line = await buf.readSlice(charCode("!"));
+  const line = await buf.readSlice("!".charCodeAt(0));
   assert(line !== null);
   const actual = decoder.decode(line);
   assertEquals(actual, "world!");
@@ -332,7 +331,7 @@ Deno.test("bufioWriter", async function (): Promise<void> {
 
   for (let i = 0; i < data.byteLength; i++) {
     // eslint-disable-next-line @typescript-eslint/restrict-plus-operands
-    data[i] = charCode(" ") + (i % (charCode("~") - charCode(" ")));
+    data[i] = " ".charCodeAt(0) + (i % ("~".charCodeAt(0) - " ".charCodeAt(0)));
   }
 
   const w = new Deno.Buffer();
@@ -366,7 +365,7 @@ Deno.test("bufioWriterSync", function (): void {
 
   for (let i = 0; i < data.byteLength; i++) {
     // eslint-disable-next-line @typescript-eslint/restrict-plus-operands
-    data[i] = charCode(" ") + (i % (charCode("~") - charCode(" ")));
+    data[i] = " ".charCodeAt(0) + (i % ("~".charCodeAt(0) - " ".charCodeAt(0)));
   }
 
   const w = new Deno.Buffer();

std/mime/multipart.ts

@@ -3,7 +3,6 @@ import { equal, findIndex, findLastIndex, hasPrefix } from "../bytes/mod.ts";
 import { copyN } from "../io/ioutil.ts";
 import { MultiReader } from "../io/readers.ts";
 import { extname } from "../path/mod.ts";
-import { tempFile } from "../io/util.ts";
 import { BufReader, BufWriter } from "../io/bufio.ts";
 import { encoder } from "../encoding/utf8.ts";
 import { assert } from "../_util/assert.ts";
@@ -310,10 +309,14 @@ export class MultipartReader {
       if (n > maxMemory) {
         // too big, write to disk and flush buffer
         const ext = extname(p.fileName);
-        const { file, filepath } = await tempFile(".", {
+        const filepath = await Deno.makeTempFile({
+          dir: ".",
           prefix: "multipart-",
-          postfix: ext,
+          suffix: ext,
         });
+
+        const file = await Deno.open(filepath, { write: true });
+
         try {
           const size = await Deno.copy(new MultiReader(buf, p), file);