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authorCasper Beyer <caspervonb@pm.me>2021-02-02 19:05:46 +0800
committerGitHub <noreply@github.com>2021-02-02 12:05:46 +0100
commit6abf126c2a7a451cded8c6b5e6ddf1b69c84055d (patch)
treefd94c013a19fcb38954844085821ec1601c20e18 /std/node/_stream/transform.ts
parenta2b5d44f1aa9d64f448a2a3cc2001272e2f60b98 (diff)
chore: remove std directory (#9361)
This removes the std folder from the tree. Various parts of the tests are pretty tightly dependent on std (47 direct imports and 75 indirect imports, not counting the cli tests that use them as fixtures) so I've added std as a submodule for now.
Diffstat (limited to 'std/node/_stream/transform.ts')
-rw-r--r--std/node/_stream/transform.ts132
1 files changed, 0 insertions, 132 deletions
diff --git a/std/node/_stream/transform.ts b/std/node/_stream/transform.ts
deleted file mode 100644
index a4246e81a..000000000
--- a/std/node/_stream/transform.ts
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright Node.js contributors. All rights reserved. MIT License.
-import { Encodings } from "../_utils.ts";
-import Duplex from "./duplex.ts";
-import type { DuplexOptions } from "./duplex.ts";
-import type { writeV } from "./writable_internal.ts";
-import { ERR_METHOD_NOT_IMPLEMENTED } from "../_errors.ts";
-
-const kCallback = Symbol("kCallback");
-
-type TransformFlush = (
- this: Transform,
- // deno-lint-ignore no-explicit-any
- callback: (error?: Error | null, data?: any) => void,
-) => void;
-
-export interface TransformOptions extends DuplexOptions {
- read?(this: Transform, size: number): void;
- write?(
- this: Transform,
- // deno-lint-ignore no-explicit-any
- chunk: any,
- encoding: Encodings,
- callback: (error?: Error | null) => void,
- ): void;
- writev?: writeV;
- final?(this: Transform, callback: (error?: Error | null) => void): void;
- destroy?(
- this: Transform,
- error: Error | null,
- callback: (error: Error | null) => void,
- ): void;
- transform?(
- this: Transform,
- // deno-lint-ignore no-explicit-any
- chunk: any,
- encoding: Encodings,
- // deno-lint-ignore no-explicit-any
- callback: (error?: Error | null, data?: any) => void,
- ): void;
- flush?: TransformFlush;
-}
-
-export default class Transform extends Duplex {
- [kCallback]: null | ((error?: Error | null) => void);
- _flush?: TransformFlush;
-
- constructor(options?: TransformOptions) {
- super(options);
- this._readableState.sync = false;
-
- this[kCallback] = null;
-
- if (options) {
- if (typeof options.transform === "function") {
- this._transform = options.transform;
- }
-
- if (typeof options.flush === "function") {
- this._flush = options.flush;
- }
- }
-
- this.on("prefinish", function (this: Transform) {
- if (typeof this._flush === "function" && !this.destroyed) {
- this._flush((er, data) => {
- if (er) {
- this.destroy(er);
- return;
- }
-
- if (data != null) {
- this.push(data);
- }
- this.push(null);
- });
- } else {
- this.push(null);
- }
- });
- }
-
- _read = () => {
- if (this[kCallback]) {
- const callback = this[kCallback] as (error?: Error | null) => void;
- this[kCallback] = null;
- callback();
- }
- };
-
- _transform(
- // deno-lint-ignore no-explicit-any
- _chunk: any,
- _encoding: string,
- // deno-lint-ignore no-explicit-any
- _callback: (error?: Error | null, data?: any) => void,
- ) {
- throw new ERR_METHOD_NOT_IMPLEMENTED("_transform()");
- }
-
- _write = (
- // deno-lint-ignore no-explicit-any
- chunk: any,
- encoding: string,
- callback: (error?: Error | null) => void,
- ) => {
- const rState = this._readableState;
- const wState = this._writableState;
- const length = rState.length;
-
- this._transform(chunk, encoding, (err, val) => {
- if (err) {
- callback(err);
- return;
- }
-
- if (val != null) {
- this.push(val);
- }
-
- if (
- wState.ended || // Backwards compat.
- length === rState.length || // Backwards compat.
- rState.length < rState.highWaterMark ||
- rState.length === 0
- ) {
- callback();
- } else {
- this[kCallback] = callback;
- }
- });
- };
-}