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61 lines
1.4 KiB
JavaScript
61 lines
1.4 KiB
JavaScript
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import { core, primordials } from "ext:core/mod.js";
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import { serializePermissions } from "ext:runtime/10_permissions.js";
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const ops = core.ops;
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const {
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StringPrototypeReplaceAll,
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SafeArrayIterator,
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} = primordials;
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const ESCAPE_ASCII_CHARS = [
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["\b", "\\b"],
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["\f", "\\f"],
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["\t", "\\t"],
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["\n", "\\n"],
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["\r", "\\r"],
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["\v", "\\v"],
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];
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/**
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* @param {string} name
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* @returns {string}
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*/
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export function escapeName(name) {
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// Check if we need to escape a character
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for (let i = 0; i < name.length; i++) {
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const ch = name.charCodeAt(i);
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if (ch <= 13 && ch >= 8) {
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// Slow path: We do need to escape it
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for (const [escape, replaceWith] of ESCAPE_ASCII_CHARS) {
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name = StringPrototypeReplaceAll(name, escape, replaceWith);
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}
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return name;
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}
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}
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// We didn't need to escape anything, return original string
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return name;
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}
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export function pledgePermissions(permissions) {
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return ops.op_pledge_test_permissions(
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serializePermissions(permissions),
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);
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}
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export function restorePermissions(token) {
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ops.op_restore_test_permissions(token);
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}
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export function withPermissions(fn, permissions) {
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return async function applyPermissions(...params) {
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const token = pledgePermissions(permissions);
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try {
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return await fn(...new SafeArrayIterator(params));
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} finally {
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restorePermissions(token);
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}
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};
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}
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