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