From d47147fb6ad229b1c039aff9d0959b6e281f4df5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= Date: Tue, 14 Feb 2023 17:38:45 +0100 Subject: feat(ext/node): embed std/node into the snapshot (#17724) This commit moves "deno_std/node" in "ext/node" crate. The code is transpiled and snapshotted during the build process. During the first pass a minimal amount of work was done to create the snapshot, a lot of code in "ext/node" depends on presence of "Deno" global. This code will be gradually fixed in the follow up PRs to migrate it to import relevant APIs from "internal:" modules. Currently the code from snapshot is not used in any way, and all Node/npm compatibility still uses code from "https://deno.land/std/node" (or from the location specified by "DENO_NODE_COMPAT_URL"). This will also be handled in a follow up PRs. --------- Co-authored-by: crowlkats Co-authored-by: Divy Srivastava Co-authored-by: Yoshiya Hinosawa --- ext/node/polyfills/internal/readline/callbacks.mjs | 137 +++++++++++++++++++++ 1 file changed, 137 insertions(+) create mode 100644 ext/node/polyfills/internal/readline/callbacks.mjs (limited to 'ext/node/polyfills/internal/readline/callbacks.mjs') diff --git a/ext/node/polyfills/internal/readline/callbacks.mjs b/ext/node/polyfills/internal/readline/callbacks.mjs new file mode 100644 index 000000000..3be88c899 --- /dev/null +++ b/ext/node/polyfills/internal/readline/callbacks.mjs @@ -0,0 +1,137 @@ +// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +"use strict"; + +import { ERR_INVALID_ARG_VALUE, ERR_INVALID_CURSOR_POS } from "internal:deno_node/polyfills/internal/errors.ts"; + +import { validateFunction } from "internal:deno_node/polyfills/internal/validators.mjs"; + +import { CSI } from "internal:deno_node/polyfills/internal/readline/utils.mjs"; + +const { + kClearLine, + kClearScreenDown, + kClearToLineBeginning, + kClearToLineEnd, +} = CSI; + +/** + * moves the cursor to the x and y coordinate on the given stream + */ + +export function cursorTo(stream, x, y, callback) { + if (callback !== undefined) { + validateFunction(callback, "callback"); + } + + if (typeof y === "function") { + callback = y; + y = undefined; + } + + if (Number.isNaN(x)) throw new ERR_INVALID_ARG_VALUE("x", x); + if (Number.isNaN(y)) throw new ERR_INVALID_ARG_VALUE("y", y); + + if (stream == null || (typeof x !== "number" && typeof y !== "number")) { + if (typeof callback === "function") process.nextTick(callback, null); + return true; + } + + if (typeof x !== "number") throw new ERR_INVALID_CURSOR_POS(); + + const data = typeof y !== "number" ? CSI`${x + 1}G` : CSI`${y + 1};${x + 1}H`; + return stream.write(data, callback); +} + +/** + * moves the cursor relative to its current location + */ + +export function moveCursor(stream, dx, dy, callback) { + if (callback !== undefined) { + validateFunction(callback, "callback"); + } + + if (stream == null || !(dx || dy)) { + if (typeof callback === "function") process.nextTick(callback, null); + return true; + } + + let data = ""; + + if (dx < 0) { + data += CSI`${-dx}D`; + } else if (dx > 0) { + data += CSI`${dx}C`; + } + + if (dy < 0) { + data += CSI`${-dy}A`; + } else if (dy > 0) { + data += CSI`${dy}B`; + } + + return stream.write(data, callback); +} + +/** + * clears the current line the cursor is on: + * -1 for left of the cursor + * +1 for right of the cursor + * 0 for the entire line + */ + +export function clearLine(stream, dir, callback) { + if (callback !== undefined) { + validateFunction(callback, "callback"); + } + + if (stream === null || stream === undefined) { + if (typeof callback === "function") process.nextTick(callback, null); + return true; + } + + const type = dir < 0 + ? kClearToLineBeginning + : dir > 0 + ? kClearToLineEnd + : kClearLine; + return stream.write(type, callback); +} + +/** + * clears the screen from the current position of the cursor down + */ + +export function clearScreenDown(stream, callback) { + if (callback !== undefined) { + validateFunction(callback, "callback"); + } + + if (stream === null || stream === undefined) { + if (typeof callback === "function") process.nextTick(callback, null); + return true; + } + + return stream.write(kClearScreenDown, callback); +} -- cgit v1.2.3