mirror of
https://github.com/denoland/deno.git
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b40086fd7d
This commit changes "include_js_files!" macro from "deno_core"
in a way that "dir" option doesn't cause specifiers to be rewritten
to include it.
Example:
```
include_js_files! {
dir "js",
"hello.js",
}
```
The above definition required embedders to use:
`import ... from "internal:<ext_name>/js/hello.js"`.
But with this change, the "js" directory in which the files are stored
is an implementation detail, which for embedders results in:
`import ... from "internal:<ext_name>/hello.js"`.
The directory the files are stored in, is an implementation detail and
in some cases might result in a significant size difference for the
snapshot. As an example, in "deno_node" extension, we store the
source code in "polyfills" directory; which resulted in each specifier
to look like "internal:deno_node/polyfills/<module_name>", but with
this change it's "internal:deno_node/<module_name>".
Given that "deno_node" has over 100 files, many of them having
several import specifiers to the same extension, this change removes
10 characters from each import specifier.
84 lines
2.9 KiB
TypeScript
84 lines
2.9 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// This module ports:
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// - https://github.com/nodejs/node/blob/master/src/node_file-inl.h
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// - https://github.com/nodejs/node/blob/master/src/node_file.cc
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// - https://github.com/nodejs/node/blob/master/src/node_file.h
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import { assert } from "internal:deno_node/_util/asserts.ts";
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/**
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* Write to the given file from the given buffer synchronously.
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*
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* Implements sync part of WriteBuffer in src/node_file.cc
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* See: https://github.com/nodejs/node/blob/e9ed113/src/node_file.cc#L1818
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*
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* @param fs file descriptor
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* @param buffer the data to write
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* @param offset where in the buffer to start from
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* @param length how much to write
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* @param position if integer, position to write at in the file. if null, write from the current position
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* @param context context object for passing error number
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*/
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export function writeBuffer(
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fd: number,
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buffer: Uint8Array,
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offset: number,
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length: number,
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position: number | null,
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ctx: { errno?: number },
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) {
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assert(offset >= 0, "offset should be greater or equal to 0");
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assert(
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offset + length <= buffer.byteLength,
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`buffer doesn't have enough data: byteLength = ${buffer.byteLength}, offset + length = ${
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offset +
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length
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}`,
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);
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if (position) {
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Deno.seekSync(fd, position, Deno.SeekMode.Current);
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}
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const subarray = buffer.subarray(offset, offset + length);
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try {
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return Deno.writeSync(fd, subarray);
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} catch (e) {
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ctx.errno = extractOsErrorNumberFromErrorMessage(e);
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return 0;
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}
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}
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function extractOsErrorNumberFromErrorMessage(e: unknown): number {
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const match = e instanceof Error
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? e.message.match(/\(os error (\d+)\)/)
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: false;
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if (match) {
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return +match[1];
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}
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return 255; // Unknown error
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}
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