mirror of
https://github.com/denoland/deno.git
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8b8b21b553
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
77 lines
1.9 KiB
JavaScript
77 lines
1.9 KiB
JavaScript
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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"use strict";
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((window) => {
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const core = window.Deno.core;
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const { pathFromURL } = window.__bootstrap.util;
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const { abortSignal } = window.__bootstrap;
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function readFileSync(path) {
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return core.opSync("op_readfile_sync", pathFromURL(path));
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}
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async function readFile(path, options) {
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let cancelRid;
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let abortHandler;
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if (options?.signal) {
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options.signal.throwIfAborted();
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cancelRid = core.opSync("op_cancel_handle");
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abortHandler = () => core.tryClose(cancelRid);
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options.signal[abortSignal.add](abortHandler);
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}
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try {
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const read = await core.opAsync(
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"op_readfile_async",
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pathFromURL(path),
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cancelRid,
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);
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return read;
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} finally {
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if (options?.signal) {
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options.signal[abortSignal.remove](abortHandler);
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// always throw the abort error when aborted
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options.signal.throwIfAborted();
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}
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}
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}
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function readTextFileSync(path) {
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return core.opSync("op_readfile_text_sync", pathFromURL(path));
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}
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async function readTextFile(path, options) {
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let cancelRid;
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let abortHandler;
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if (options?.signal) {
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options.signal.throwIfAborted();
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cancelRid = core.opSync("op_cancel_handle");
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abortHandler = () => core.tryClose(cancelRid);
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options.signal[abortSignal.add](abortHandler);
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}
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try {
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const read = await core.opAsync(
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"op_readfile_text_async",
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pathFromURL(path),
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cancelRid,
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);
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return read;
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} finally {
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if (options?.signal) {
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options.signal[abortSignal.remove](abortHandler);
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// always throw the abort error when aborted
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options.signal.throwIfAborted();
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}
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}
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}
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window.__bootstrap.readFile = {
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readFile,
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readFileSync,
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readTextFileSync,
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readTextFile,
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};
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})(this);
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