/
ses.cjs
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/
ses.cjs
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// ses@1.1.0
'use strict';
(() => {
const functors = [
// === functors[0] ===
({ imports: $h_imports, liveVar: $h_live, onceVar: $h_once, importMeta: $h____meta, }) => (function () { $h_imports([]); /* global globalThis */
/* eslint-disable no-restricted-globals */
/**
* commons.js
* Declare shorthand functions. Sharing these declarations across modules
* improves on consistency and minification. Unused declarations are
* dropped by the tree shaking process.
*
* We capture these, not just for brevity, but for security. If any code
* modifies Object to change what 'assign' points to, the Compartment shim
* would be corrupted.
*/
// We cannot use globalThis as the local name since it would capture the
// lexical name.
const universalThis= globalThis;$h_once.universalThis(universalThis);
const {
Array,
Date,
FinalizationRegistry,
Float32Array,
JSON,
Map,
Math,
Number,
Object,
Promise,
Proxy,
Reflect,
RegExp: FERAL_REG_EXP,
Set,
String,
Symbol,
WeakMap,
WeakSet}=
globalThis;$h_once.Array(Array);$h_once.Date(Date);$h_once.FinalizationRegistry(FinalizationRegistry);$h_once.Float32Array(Float32Array);$h_once.JSON(JSON);$h_once.Map(Map);$h_once.Math(Math);$h_once.Number(Number);$h_once.Object(Object);$h_once.Promise(Promise);$h_once.Proxy(Proxy);$h_once.Reflect(Reflect);$h_once.FERAL_REG_EXP(FERAL_REG_EXP);$h_once.Set(Set);$h_once.String(String);$h_once.Symbol(Symbol);$h_once.WeakMap(WeakMap);$h_once.WeakSet(WeakSet);
const {
// The feral Error constructor is safe for internal use, but must not be
// revealed to post-lockdown code in any compartment including the start
// compartment since in V8 at least it bears stack inspection capabilities.
Error: FERAL_ERROR,
RangeError,
ReferenceError,
SyntaxError,
TypeError}=
globalThis;$h_once.FERAL_ERROR(FERAL_ERROR);$h_once.RangeError(RangeError);$h_once.ReferenceError(ReferenceError);$h_once.SyntaxError(SyntaxError);$h_once.TypeError(TypeError);
const {
assign,
create,
defineProperties,
entries,
freeze,
getOwnPropertyDescriptor,
getOwnPropertyDescriptors,
getOwnPropertyNames,
getPrototypeOf,
is,
isFrozen,
isSealed,
isExtensible,
keys,
prototype: objectPrototype,
seal,
preventExtensions,
setPrototypeOf,
values,
fromEntries}=
Object;$h_once.assign(assign);$h_once.create(create);$h_once.defineProperties(defineProperties);$h_once.entries(entries);$h_once.freeze(freeze);$h_once.getOwnPropertyDescriptor(getOwnPropertyDescriptor);$h_once.getOwnPropertyDescriptors(getOwnPropertyDescriptors);$h_once.getOwnPropertyNames(getOwnPropertyNames);$h_once.getPrototypeOf(getPrototypeOf);$h_once.is(is);$h_once.isFrozen(isFrozen);$h_once.isSealed(isSealed);$h_once.isExtensible(isExtensible);$h_once.keys(keys);$h_once.objectPrototype(objectPrototype);$h_once.seal(seal);$h_once.preventExtensions(preventExtensions);$h_once.setPrototypeOf(setPrototypeOf);$h_once.values(values);$h_once.fromEntries(fromEntries);
const {
species: speciesSymbol,
toStringTag: toStringTagSymbol,
iterator: iteratorSymbol,
matchAll: matchAllSymbol,
unscopables: unscopablesSymbol,
keyFor: symbolKeyFor,
for: symbolFor}=
Symbol;$h_once.speciesSymbol(speciesSymbol);$h_once.toStringTagSymbol(toStringTagSymbol);$h_once.iteratorSymbol(iteratorSymbol);$h_once.matchAllSymbol(matchAllSymbol);$h_once.unscopablesSymbol(unscopablesSymbol);$h_once.symbolKeyFor(symbolKeyFor);$h_once.symbolFor(symbolFor);
const { isInteger}= Number;$h_once.isInteger(isInteger);
const { stringify: stringifyJson}= JSON;
// Needed only for the Safari bug workaround below
$h_once.stringifyJson(stringifyJson);const{defineProperty:originalDefineProperty}=Object;
const defineProperty= (object, prop, descriptor)=> {
// We used to do the following, until we had to reopen Safari bug
// https://bugs.webkit.org/show_bug.cgi?id=222538#c17
// Once this is fixed, we may restore it.
// // Object.defineProperty is allowed to fail silently so we use
// // Object.defineProperties instead.
// return defineProperties(object, { [prop]: descriptor });
// Instead, to workaround the Safari bug
const result= originalDefineProperty(object, prop, descriptor);
if( result!== object) {
// See https://github.com/endojs/endo/blob/master/packages/ses/error-codes/SES_DEFINE_PROPERTY_FAILED_SILENTLY.md
throw TypeError(
`Please report that the original defineProperty silently failed to set ${stringifyJson(
String(prop))
}. (SES_DEFINE_PROPERTY_FAILED_SILENTLY)`);
}
return result;
};$h_once.defineProperty(defineProperty);
const {
apply,
construct,
get: reflectGet,
getOwnPropertyDescriptor: reflectGetOwnPropertyDescriptor,
has: reflectHas,
isExtensible: reflectIsExtensible,
ownKeys,
preventExtensions: reflectPreventExtensions,
set: reflectSet}=
Reflect;$h_once.apply(apply);$h_once.construct(construct);$h_once.reflectGet(reflectGet);$h_once.reflectGetOwnPropertyDescriptor(reflectGetOwnPropertyDescriptor);$h_once.reflectHas(reflectHas);$h_once.reflectIsExtensible(reflectIsExtensible);$h_once.ownKeys(ownKeys);$h_once.reflectPreventExtensions(reflectPreventExtensions);$h_once.reflectSet(reflectSet);
const { isArray, prototype: arrayPrototype}= Array;$h_once.isArray(isArray);$h_once.arrayPrototype(arrayPrototype);
const { prototype: mapPrototype}= Map;$h_once.mapPrototype(mapPrototype);
const { revocable: proxyRevocable}= Proxy;$h_once.proxyRevocable(proxyRevocable);
const { prototype: regexpPrototype}= RegExp;$h_once.regexpPrototype(regexpPrototype);
const { prototype: setPrototype}= Set;$h_once.setPrototype(setPrototype);
const { prototype: stringPrototype}= String;$h_once.stringPrototype(stringPrototype);
const { prototype: weakmapPrototype}= WeakMap;$h_once.weakmapPrototype(weakmapPrototype);
const { prototype: weaksetPrototype}= WeakSet;$h_once.weaksetPrototype(weaksetPrototype);
const { prototype: functionPrototype}= Function;$h_once.functionPrototype(functionPrototype);
const { prototype: promisePrototype}= Promise;$h_once.promisePrototype(promisePrototype);
const typedArrayPrototype= getPrototypeOf(Uint8Array.prototype);$h_once.typedArrayPrototype(typedArrayPrototype);
const { bind}= functionPrototype;
/**
* uncurryThis()
* Equivalent of: fn => (thisArg, ...args) => apply(fn, thisArg, args)
*
* See those reference for a complete explanation:
* http://wiki.ecmascript.org/doku.php?id=conventions:safe_meta_programming
* which only lives at
* http://web.archive.org/web/20160805225710/http://wiki.ecmascript.org/doku.php?id=conventions:safe_meta_programming
*
* @type {<F extends (this: any, ...args: any[]) => any>(fn: F) => ((thisArg: ThisParameterType<F>, ...args: Parameters<F>) => ReturnType<F>)}
*/
const uncurryThis= bind.bind(bind.call); // eslint-disable-line @endo/no-polymorphic-call
$h_once.uncurryThis(uncurryThis);
const objectHasOwnProperty= uncurryThis(objectPrototype.hasOwnProperty);
//
$h_once.objectHasOwnProperty(objectHasOwnProperty);const arrayFilter=uncurryThis(arrayPrototype.filter);$h_once.arrayFilter(arrayFilter);
const arrayForEach= uncurryThis(arrayPrototype.forEach);$h_once.arrayForEach(arrayForEach);
const arrayIncludes= uncurryThis(arrayPrototype.includes);$h_once.arrayIncludes(arrayIncludes);
const arrayJoin= uncurryThis(arrayPrototype.join);
/** @type {<T, U>(thisArg: readonly T[], callbackfn: (value: T, index: number, array: T[]) => U, cbThisArg?: any) => U[]} */$h_once.arrayJoin(arrayJoin);
const arrayMap= /** @type {any} */ uncurryThis(arrayPrototype.map);$h_once.arrayMap(arrayMap);
const arrayPop= uncurryThis(arrayPrototype.pop);
/** @type {<T>(thisArg: T[], ...items: T[]) => number} */$h_once.arrayPop(arrayPop);
const arrayPush= uncurryThis(arrayPrototype.push);$h_once.arrayPush(arrayPush);
const arraySlice= uncurryThis(arrayPrototype.slice);$h_once.arraySlice(arraySlice);
const arraySome= uncurryThis(arrayPrototype.some);$h_once.arraySome(arraySome);
const arraySort= uncurryThis(arrayPrototype.sort);$h_once.arraySort(arraySort);
const iterateArray= uncurryThis(arrayPrototype[iteratorSymbol]);
//
$h_once.iterateArray(iterateArray);const mapSet=uncurryThis(mapPrototype.set);$h_once.mapSet(mapSet);
const mapGet= uncurryThis(mapPrototype.get);$h_once.mapGet(mapGet);
const mapHas= uncurryThis(mapPrototype.has);$h_once.mapHas(mapHas);
const mapDelete= uncurryThis(mapPrototype.delete);$h_once.mapDelete(mapDelete);
const mapEntries= uncurryThis(mapPrototype.entries);$h_once.mapEntries(mapEntries);
const iterateMap= uncurryThis(mapPrototype[iteratorSymbol]);
//
$h_once.iterateMap(iterateMap);const setAdd=uncurryThis(setPrototype.add);$h_once.setAdd(setAdd);
const setDelete= uncurryThis(setPrototype.delete);$h_once.setDelete(setDelete);
const setForEach= uncurryThis(setPrototype.forEach);$h_once.setForEach(setForEach);
const setHas= uncurryThis(setPrototype.has);$h_once.setHas(setHas);
const iterateSet= uncurryThis(setPrototype[iteratorSymbol]);
//
$h_once.iterateSet(iterateSet);const regexpTest=uncurryThis(regexpPrototype.test);$h_once.regexpTest(regexpTest);
const regexpExec= uncurryThis(regexpPrototype.exec);$h_once.regexpExec(regexpExec);
const matchAllRegExp= uncurryThis(regexpPrototype[matchAllSymbol]);
//
$h_once.matchAllRegExp(matchAllRegExp);const stringEndsWith=uncurryThis(stringPrototype.endsWith);$h_once.stringEndsWith(stringEndsWith);
const stringIncludes= uncurryThis(stringPrototype.includes);$h_once.stringIncludes(stringIncludes);
const stringIndexOf= uncurryThis(stringPrototype.indexOf);$h_once.stringIndexOf(stringIndexOf);
const stringMatch= uncurryThis(stringPrototype.match);
/**
* @type { &
* ((thisArg: string, searchValue: { [Symbol.replace](string: string, replaceValue: string): string; }, replaceValue: string) => string) &
* ((thisArg: string, searchValue: { [Symbol.replace](string: string, replacer: (substring: string, ...args: any[]) => string): string; }, replacer: (substring: string, ...args: any[]) => string) => string)
* }
*/$h_once.stringMatch(stringMatch);
const stringReplace= /** @type {any} */
uncurryThis(stringPrototype.replace);$h_once.stringReplace(stringReplace);
const stringSearch= uncurryThis(stringPrototype.search);$h_once.stringSearch(stringSearch);
const stringSlice= uncurryThis(stringPrototype.slice);
/** @type {(thisArg: string, splitter: string | RegExp | { [Symbol.split](string: string, limit?: number): string[]; }, limit?: number) => string[]} */$h_once.stringSlice(stringSlice);
const stringSplit= uncurryThis(stringPrototype.split);$h_once.stringSplit(stringSplit);
const stringStartsWith= uncurryThis(stringPrototype.startsWith);$h_once.stringStartsWith(stringStartsWith);
const iterateString= uncurryThis(stringPrototype[iteratorSymbol]);
//
$h_once.iterateString(iterateString);const weakmapDelete=uncurryThis(weakmapPrototype.delete);
/** @type {<K extends {}, V>(thisArg: WeakMap<K, V>, ...args: Parameters<WeakMap<K,V>['get']>) => ReturnType<WeakMap<K,V>['get']>} */$h_once.weakmapDelete(weakmapDelete);
const weakmapGet= uncurryThis(weakmapPrototype.get);$h_once.weakmapGet(weakmapGet);
const weakmapHas= uncurryThis(weakmapPrototype.has);$h_once.weakmapHas(weakmapHas);
const weakmapSet= uncurryThis(weakmapPrototype.set);
//
$h_once.weakmapSet(weakmapSet);const weaksetAdd=uncurryThis(weaksetPrototype.add);$h_once.weaksetAdd(weaksetAdd);
const weaksetHas= uncurryThis(weaksetPrototype.has);
//
$h_once.weaksetHas(weaksetHas);const functionToString=uncurryThis(functionPrototype.toString);
//
$h_once.functionToString(functionToString);const{all}=Promise;
const promiseAll= (promises)=>apply(all, Promise, [promises]);$h_once.promiseAll(promiseAll);
const promiseCatch= uncurryThis(promisePrototype.catch);
/** @type {<T, TResult1 = T, TResult2 = never>(thisArg: T, onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | undefined | null) => Promise<TResult1 | TResult2>} */$h_once.promiseCatch(promiseCatch);
const promiseThen= /** @type {any} */
uncurryThis(promisePrototype.then);
//
$h_once.promiseThen(promiseThen);const finalizationRegistryRegister=
FinalizationRegistry&& uncurryThis(FinalizationRegistry.prototype.register);$h_once.finalizationRegistryRegister(finalizationRegistryRegister);
const finalizationRegistryUnregister=
FinalizationRegistry&&
uncurryThis(FinalizationRegistry.prototype.unregister);
/**
* getConstructorOf()
* Return the constructor from an instance.
*
* @param {Function} fn
*/$h_once.finalizationRegistryUnregister(finalizationRegistryUnregister);
const getConstructorOf= (fn)=>
reflectGet(getPrototypeOf(fn), 'constructor');
/**
* immutableObject
* An immutable (frozen) empty object that is safe to share.
*/$h_once.getConstructorOf(getConstructorOf);
const immutableObject= freeze(create(null));
/**
* isObject tests whether a value is an object.
* Today, this is equivalent to:
*
* const isObject = value => {
* if (value === null) return false;
* const type = typeof value;
* return type === 'object' || type === 'function';
* };
*
* But this is not safe in the face of possible evolution of the language, for
* example new types or semantics of records and tuples.
* We use this implementation despite the unnecessary allocation implied by
* attempting to box a primitive.
*
* @param {any} value
*/$h_once.immutableObject(immutableObject);
const isObject= (value)=>Object(value)=== value;
/**
* isError tests whether an object inherits from the intrinsic
* `Error.prototype`.
* We capture the original error constructor as FERAL_ERROR to provide a clear
* signal for reviewers that we are handling an object with excess authority,
* like stack trace inspection, that we are carefully hiding from client code.
* Checking instanceof happens to be safe, but to avoid uttering FERAL_ERROR
* for such a trivial case outside commons.js, we provide a utility function.
*
* @param {any} value
*/$h_once.isObject(isObject);
const isError= (value)=>value instanceof FERAL_ERROR;
// The original unsafe untamed eval function, which must not escape.
// Sample at module initialization time, which is before lockdown can
// repair it. Use it only to build powerless abstractions.
// eslint-disable-next-line no-eval
$h_once.isError(isError);const FERAL_EVAL=eval;
// The original unsafe untamed Function constructor, which must not escape.
// Sample at module initialization time, which is before lockdown can
// repair it. Use it only to build powerless abstractions.
$h_once.FERAL_EVAL(FERAL_EVAL);const FERAL_FUNCTION=Function;$h_once.FERAL_FUNCTION(FERAL_FUNCTION);
const noEvalEvaluate= ()=> {
// See https://github.com/endojs/endo/blob/master/packages/ses/error-codes/SES_NO_EVAL.md
throw TypeError('Cannot eval with evalTaming set to "noEval" (SES_NO_EVAL)');
};$h_once.noEvalEvaluate(noEvalEvaluate);
})()
,
// === functors[1] ===
({ imports: $h_imports, liveVar: $h_live, onceVar: $h_once, importMeta: $h____meta, }) => (function () { let TypeError;$h_imports([["./commons.js", [["TypeError", [$h_a => (TypeError = $h_a)]]]]]);
/** getThis returns globalThis in sloppy mode or undefined in strict mode. */
function getThis() {
return this;
}
if( getThis()) {
// See https://github.com/endojs/endo/blob/master/packages/ses/error-codes/SES_NO_SLOPPY.md
throw TypeError( `SES failed to initialize, sloppy mode (SES_NO_SLOPPY)`);
}
})()
,
// === functors[2] ===
({ imports: $h_imports, liveVar: $h_live, onceVar: $h_once, importMeta: $h____meta, }) => (function () { $h_imports([]); /* global globalThis */
// @ts-check
// `@endo/env-options` needs to be imported quite early, and so should
// avoid importing from ses or anything that depends on ses.
// /////////////////////////////////////////////////////////////////////////////
// Prelude of cheap good - enough imitations of things we'd use or
// do differently if we could depend on ses
const { freeze}= Object;
const { apply}= Reflect;
// Should be equivalent to the one in ses' commons.js even though it
// uses the other technique.
const uncurryThis=
(fn)=>
(receiver, ...args)=>
apply(fn, receiver, args);
const arrayPush= uncurryThis(Array.prototype.push);
const arrayIncludes= uncurryThis(Array.prototype.includes);
const stringSplit= uncurryThis(String.prototype.split);
const q= JSON.stringify;
const Fail= (literals, ...args)=> {
let msg= literals[0];
for( let i= 0; i< args.length; i+= 1) {
msg= `${msg}${args[i]}${literals[i+ 1] }`;
}
throw Error(msg);
};
// end prelude
// /////////////////////////////////////////////////////////////////////////////
/**
* `makeEnvironmentCaptor` provides a mechanism for getting environment
* variables, if they are needed, and a way to catalog the names of all
* the environment variables that were captured.
*
* @param {object} aGlobal
* @param {boolean} [dropNames] Defaults to false. If true, don't track
* names used.
*/
const makeEnvironmentCaptor= (aGlobal, dropNames= false)=> {
const capturedEnvironmentOptionNames= [];
/**
* Gets an environment option by name and returns the option value or the
* given default.
*
* @param {string} optionName
* @param {string} defaultSetting
* @param {string[]} [optOtherValues]
* If provided, the option value must be included or match `defaultSetting`.
* @returns {string}
*/
const getEnvironmentOption= (
optionName,
defaultSetting,
optOtherValues= undefined)=>
{
typeof optionName=== 'string'||
Fail `Environment option name ${q(optionName)} must be a string.`;
typeof defaultSetting=== 'string'||
Fail `Environment option default setting ${q(
defaultSetting)
} must be a string.`;
/** @type {string} */
let setting= defaultSetting;
const globalProcess= aGlobal.process|| undefined;
const globalEnv=
typeof globalProcess=== 'object'&& globalProcess.env|| undefined;
if( typeof globalEnv=== 'object') {
if( optionName in globalEnv) {
if( !dropNames) {
arrayPush(capturedEnvironmentOptionNames, optionName);
}
const optionValue= globalEnv[optionName];
// eslint-disable-next-line @endo/no-polymorphic-call
typeof optionValue=== 'string'||
Fail `Environment option named ${q(
optionName)
}, if present, must have a corresponding string value, got ${q(
optionValue)
}`;
setting= optionValue;
}
}
optOtherValues=== undefined||
setting=== defaultSetting||
arrayIncludes(optOtherValues, setting)||
Fail `Unrecognized ${q(optionName)} value ${q(
setting)
}. Expected one of ${q([defaultSetting,...optOtherValues]) }`;
return setting;
};
freeze(getEnvironmentOption);
/**
* @param {string} optionName
* @returns {string[]}
*/
const getEnvironmentOptionsList= (optionName)=>{
const option= getEnvironmentOption(optionName, '');
return freeze(option=== ''? []: stringSplit(option, ','));
};
freeze(getEnvironmentOptionsList);
const environmentOptionsListHas= (optionName, element)=>
arrayIncludes(getEnvironmentOptionsList(optionName), element);
const getCapturedEnvironmentOptionNames= ()=> {
return freeze([...capturedEnvironmentOptionNames]);
};
freeze(getCapturedEnvironmentOptionNames);
return freeze({
getEnvironmentOption,
getEnvironmentOptionsList,
environmentOptionsListHas,
getCapturedEnvironmentOptionNames});
};$h_once.makeEnvironmentCaptor(makeEnvironmentCaptor);
freeze(makeEnvironmentCaptor);
/**
* For the simple case, where the global in question is `globalThis` and no
* reporting of option names is desired.
*/
const {
getEnvironmentOption,
getEnvironmentOptionsList,
environmentOptionsListHas}=
makeEnvironmentCaptor(globalThis, true);$h_once.getEnvironmentOption(getEnvironmentOption);$h_once.getEnvironmentOptionsList(getEnvironmentOptionsList);$h_once.environmentOptionsListHas(environmentOptionsListHas);
})()
,
// === functors[3] ===
({ imports: $h_imports, liveVar: $h_live, onceVar: $h_once, importMeta: $h____meta, }) => (function () { $h_imports([["./src/env-options.js", []]]);
})()
,
// === functors[4] ===
({ imports: $h_imports, liveVar: $h_live, onceVar: $h_once, importMeta: $h____meta, }) => (function () { let Set,String,isArray,arrayJoin,arraySlice,arraySort,arrayMap,keys,fromEntries,freeze,is,isError,setAdd,setHas,stringIncludes,stringStartsWith,stringifyJson,toStringTagSymbol;$h_imports([["../commons.js", [["Set", [$h_a => (Set = $h_a)]],["String", [$h_a => (String = $h_a)]],["isArray", [$h_a => (isArray = $h_a)]],["arrayJoin", [$h_a => (arrayJoin = $h_a)]],["arraySlice", [$h_a => (arraySlice = $h_a)]],["arraySort", [$h_a => (arraySort = $h_a)]],["arrayMap", [$h_a => (arrayMap = $h_a)]],["keys", [$h_a => (keys = $h_a)]],["fromEntries", [$h_a => (fromEntries = $h_a)]],["freeze", [$h_a => (freeze = $h_a)]],["is", [$h_a => (is = $h_a)]],["isError", [$h_a => (isError = $h_a)]],["setAdd", [$h_a => (setAdd = $h_a)]],["setHas", [$h_a => (setHas = $h_a)]],["stringIncludes", [$h_a => (stringIncludes = $h_a)]],["stringStartsWith", [$h_a => (stringStartsWith = $h_a)]],["stringifyJson", [$h_a => (stringifyJson = $h_a)]],["toStringTagSymbol", [$h_a => (toStringTagSymbol = $h_a)]]]]]);
/**
* Joins English terms with commas and an optional conjunction.
*
* @param {(string | StringablePayload)[]} terms
* @param {"and" | "or"} conjunction
*/
const enJoin= (terms, conjunction)=> {
if( terms.length=== 0) {
return '(none)';
}else if( terms.length=== 1) {
return terms[0];
}else if( terms.length=== 2) {
const [first, second]= terms;
return `${first} ${conjunction} ${second}`;
}else {
return `${arrayJoin(arraySlice(terms,0, -1), ', ') }, ${conjunction} ${
terms[terms.length- 1]
}`;
}
};
/**
* Prepend the correct indefinite article onto a noun, typically a typeof
* result, e.g., "an object" vs. "a number"
*
* @param {string} str The noun to prepend
* @returns {string} The noun prepended with a/an
*/$h_once.enJoin(enJoin);
const an= (str)=>{
str= `${str}`;
if( str.length>= 1&& stringIncludes('aeiouAEIOU', str[0])) {
return `an ${str}`;
}
return `a ${str}`;
};$h_once.an(an);
freeze(an);
/**
* Like `JSON.stringify` but does not blow up if given a cycle or a bigint.
* This is not
* intended to be a serialization to support any useful unserialization,
* or any programmatic use of the resulting string. The string is intended
* *only* for showing a human under benign conditions, in order to be
* informative enough for some
* logging purposes. As such, this `bestEffortStringify` has an
* imprecise specification and may change over time.
*
* The current `bestEffortStringify` possibly emits too many "seen"
* markings: Not only for cycles, but also for repeated subtrees by
* object identity.
*
* As a best effort only for diagnostic interpretation by humans,
* `bestEffortStringify` also turns various cases that normal
* `JSON.stringify` skips or errors on, like `undefined` or bigints,
* into strings that convey their meaning. To distinguish this from
* strings in the input, these synthesized strings always begin and
* end with square brackets. To distinguish those strings from an
* input string with square brackets, and input string that starts
* with an open square bracket `[` is itself placed in square brackets.
*
* @param {any} payload
* @param {(string|number)=} spaces
* @returns {string}
*/
const bestEffortStringify= (payload, spaces= undefined)=> {
const seenSet= new Set();
const replacer= (_, val)=> {
switch( typeof val){
case 'object': {
if( val=== null) {
return null;
}
if( setHas(seenSet, val)) {
return '[Seen]';
}
setAdd(seenSet, val);
if( isError(val)) {
return `[${val.name}: ${val.message}]`;
}
if( toStringTagSymbol in val) {
// For the built-ins that have or inherit a `Symbol.toStringTag`-named
// property, most of them inherit the default `toString` method,
// which will print in a similar manner: `"[object Foo]"` vs
// `"[Foo]"`. The exceptions are
// * `Symbol.prototype`, `BigInt.prototype`, `String.prototype`
// which don't matter to us since we handle primitives
// separately and we don't care about primitive wrapper objects.
// * TODO
// `Date.prototype`, `TypedArray.prototype`.
// Hmmm, we probably should make special cases for these. We're
// not using these yet, so it's not urgent. But others will run
// into these.
//
// Once #2018 is closed, the only objects in our code that have or
// inherit a `Symbol.toStringTag`-named property are remotables
// or their remote presences.
// This printing will do a good job for these without
// violating abstraction layering. This behavior makes sense
// purely in terms of JavaScript concepts. That's some of the
// motivation for choosing that representation of remotables
// and their remote presences in the first place.
return `[${val[toStringTagSymbol]}]`;
}
if( isArray(val)) {
return val;
}
const names= keys(val);
if( names.length< 2) {
return val;
}
let sorted= true;
for( let i= 1; i< names.length; i+= 1) {
if( names[i- 1]>= names[i]) {
sorted= false;
break;
}
}
if( sorted) {
return val;
}
arraySort(names);
const entries= arrayMap(names, (name)=>[name, val[name]]);
return fromEntries(entries);
}
case 'function': {
return `[Function ${val.name|| '<anon>' }]`;
}
case 'string': {
if( stringStartsWith(val, '[')) {
return `[${val}]`;
}
return val;
}
case 'undefined':
case 'symbol': {
return `[${String(val)}]`;
}
case 'bigint': {
return `[${val}n]`;
}
case 'number': {
if( is(val, NaN)) {
return '[NaN]';
}else if( val=== Infinity) {
return '[Infinity]';
}else if( val=== -Infinity) {
return '[-Infinity]';
}
return val;
}
default: {
return val;
}}
};
try {
return stringifyJson(payload, replacer, spaces);
}catch( _err) {
// Don't do anything more fancy here if there is any
// chance that might throw, unless you surround that
// with another try-catch-recovery. For example,
// the caught thing might be a proxy or other exotic
// object rather than an error. The proxy might throw
// whenever it is possible for it to.
return '[Something that failed to stringify]';
}
};$h_once.bestEffortStringify(bestEffortStringify);
freeze(bestEffortStringify);
})()
,
// === functors[5] ===
({ imports: $h_imports, liveVar: $h_live, onceVar: $h_once, importMeta: $h____meta, }) => (function () { $h_imports([]); // @ts-check
/**
* @callback BaseAssert
* The `assert` function itself.
*
* @param {any} flag The truthy/falsy value
* @param {Details=} optDetails The details to throw
* @param {ErrorConstructor=} ErrorConstructor An optional alternate error
* constructor to use.
* @returns {asserts flag}
*/
/**
* @typedef {object} AssertMakeErrorOptions
* @property {string=} errorName
*/
/**
* @callback AssertMakeError
*
* The `assert.error` method, recording details for the console.
*
* The optional `optDetails` can be a string.
* @param {Details=} optDetails The details of what was asserted
* @param {ErrorConstructor=} ErrorConstructor An optional alternate error
* constructor to use.
* @param {AssertMakeErrorOptions=} options
* @returns {Error}
*/
/**
* @callback AssertFail
*
* The `assert.fail` method.
*
* Fail an assertion, recording full details to the console and
* raising an exception with a message in which `details` substitution values
* have been redacted.
*
* The optional `optDetails` can be a string for backwards compatibility
* with the nodejs assertion library.
* @param {Details=} optDetails The details of what was asserted
* @param {ErrorConstructor=} ErrorConstructor An optional alternate error
* constructor to use.
* @returns {never}
*/
/**
* @callback AssertEqual
* The `assert.equal` method
*
* Assert that two values must be `Object.is`.
* @param {any} actual The value we received
* @param {any} expected What we wanted
* @param {Details=} optDetails The details to throw
* @param {ErrorConstructor=} ErrorConstructor An optional alternate error
* constructor to use.
* @returns {void}
*/
// Type all the overloads of the assertTypeof function.
// There may eventually be a better way to do this, but
// thems the breaks with Typescript 4.0.
/**
* @callback AssertTypeofBigint
* @param {any} specimen
* @param {'bigint'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is bigint}
*/
/**
* @callback AssertTypeofBoolean
* @param {any} specimen
* @param {'boolean'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is boolean}
*/
/**
* @callback AssertTypeofFunction
* @param {any} specimen
* @param {'function'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is Function}
*/
/**
* @callback AssertTypeofNumber
* @param {any} specimen
* @param {'number'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is number}
*/
/**
* @callback AssertTypeofObject
* @param {any} specimen
* @param {'object'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is Record<any, any> | null}
*/
/**
* @callback AssertTypeofString
* @param {any} specimen
* @param {'string'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is string}
*/
/**
* @callback AssertTypeofSymbol
* @param {any} specimen
* @param {'symbol'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is symbol}
*/
/**
* @callback AssertTypeofUndefined
* @param {any} specimen
* @param {'undefined'} typename
* @param {Details=} optDetails
* @returns {asserts specimen is undefined}
*/
/**
* The `assert.typeof` method
*
* @typedef {AssertTypeofBigint & AssertTypeofBoolean & AssertTypeofFunction & AssertTypeofNumber & AssertTypeofObject & AssertTypeofString & AssertTypeofSymbol & AssertTypeofUndefined} AssertTypeof
*/
/**
* @callback AssertString
* The `assert.string` method.
*
* `assert.string(v)` is equivalent to `assert.typeof(v, 'string')`. We
* special case this one because it is the most frequently used.
*
* Assert an expected typeof result.
* @param {any} specimen The value to get the typeof
* @param {Details=} optDetails The details to throw
* @returns {asserts specimen is string}
*/
/**
* @callback AssertNote
* The `assert.note` method.
*
* Annotate an error with details, potentially to be used by an
* augmented console such as the causal console of `console.js`, to
* provide extra information associated with logged errors.
*
* @param {Error} error
* @param {Details} detailsNote
* @returns {void}
*/
// /////////////////////////////////////////////////////////////////////////////
/**
* @typedef {{}} DetailsToken
* A call to the `details` template literal makes and returns a fresh details
* token, which is a frozen empty object associated with the arguments of that
* `details` template literal expression.
*/
/**
* @typedef {string | DetailsToken} Details
* Either a plain string, or made by the `details` template literal tag.
*/
/**
* @typedef {object} StringablePayload
* Holds the payload passed to quote so that its printed form is visible.
* @property {() => string} toString How to print the payload
*/
/**
* To "declassify" and quote a substitution value used in a
* ``` details`...` ``` template literal, enclose that substitution expression
* in a call to `quote`. This makes the value appear quoted
* (as if with `JSON.stringify`) in the message of the thrown error. The
* payload itself is still passed unquoted to the console as it would be
* without `quote`.
*
* For example, the following will reveal the expected sky color, but not the
* actual incorrect sky color, in the thrown error's message:
* ```js
* sky.color === expectedColor || Fail`${sky.color} should be ${quote(expectedColor)}`;
* ```
*
* // TODO Update SES-shim to new convention, where `details` is
* // renamed to `X` rather than `d`.
* The normal convention is to locally rename `details` to `d` and `quote` to `q`
* like `const { details: d, quote: q } = assert;`, so the above example would then be
* ```js
* sky.color === expectedColor || Fail`${sky.color} should be ${q(expectedColor)}`;
* ```
*
* @callback AssertQuote
* @param {any} payload What to declassify
* @param {(string|number)=} spaces
* @returns {StringablePayload} The declassified payload
*/
/**
* @callback Raise
*
* To make an `assert` which terminates some larger unit of computation
* like a transaction, vat, or process, call `makeAssert` with a `Raise`
* callback, where that callback actually performs that larger termination.
* If possible, the callback should also report its `reason` parameter as
* the alleged reason for the termination.
*
* @param {Error} reason
*/
/**
* @callback MakeAssert
*
* Makes and returns an `assert` function object that shares the bookkeeping
* state defined by this module with other `assert` function objects made by
* `makeAssert`. This state is per-module-instance and is exposed by the
* `loggedErrorHandler` above. We refer to `assert` as a "function object"
* because it can be called directly as a function, but also has methods that
* can be called.
*
* If `optRaise` is provided, the returned `assert` function object will call
* `optRaise(reason)` before throwing the error. This enables `optRaise` to
* engage in even more violent termination behavior, like terminating the vat,
* that prevents execution from reaching the following throw. However, if
* `optRaise` returns normally, which would be unusual, the throw following
* `optRaise(reason)` would still happen.
*
* @param {Raise=} optRaise
* @param {boolean=} unredacted
* @returns {Assert}
*/
/**
* @typedef {(template: TemplateStringsArray | string[], ...args: any) => DetailsToken} DetailsTag
*
* Use the `details` function as a template literal tag to create
* informative error messages. The assertion functions take such messages
* as optional arguments:
* ```js
* assert(sky.isBlue(), details`${sky.color} should be "blue"`);
* ```
* // TODO Update SES-shim to new convention, where `details` is
* // renamed to `X` rather than `d`.
* or following the normal convention to locally rename `details` to `d`
* and `quote` to `q` like `const { details: d, quote: q } = assert;`:
* ```js
* assert(sky.isBlue(), d`${sky.color} should be "blue"`);
* ```
* However, note that in most cases it is preferable to instead use the `Fail`
* template literal tag (which has the same input signature as `details`
* but automatically creates and throws an error):
* ```js
* sky.isBlue() || Fail`${sky.color} should be "blue"`;
* ```
*
* The details template tag returns a `DetailsToken` object that can print
* itself with the formatted message in two ways.
* It will report full details to the console, but
* mask embedded substitution values with their typeof information in the thrown error
* to prevent revealing secrets up the exceptional path. In the example
* above, the thrown error may reveal only that `sky.color` is a string,
* whereas the same diagnostic printed to the console reveals that the
* sky was green. This masking can be disabled for an individual substitution value
* using `quote`.
*
* The `raw` property of an input template array is ignored, so a simple
* array of strings may be provided directly.
*/
/**
* @typedef {(template: TemplateStringsArray | string[], ...args: any) => never} FailTag
*
* Use the `Fail` function as a template literal tag to efficiently
* create and throw a `details`-style error only when a condition is not satisfied.
* ```js
* condition || Fail`...complaint...`;
* ```
* This avoids the overhead of creating usually-unnecessary errors like
* ```js
* assert(condition, details`...complaint...`);
* ```
* while improving readability over alternatives like
* ```js
* condition || assert.fail(details`...complaint...`);
* ```
*
* However, due to current weakness in TypeScript, static reasoning
* is less powerful with the `||` patterns than with an `assert` call.
* Until/unless https://github.com/microsoft/TypeScript/issues/51426 is fixed,
* for `||`-style assertions where this loss of static reasoning is a problem,
* instead express the assertion as
* ```js
* if (!condition) {
* Fail`...complaint...`;
* }
* ```
* or, if needed,
* ```js
* if (!condition) {
* // `throw` is noop since `Fail` throws, but it improves static analysis
* throw Fail`...complaint...`;
* }
* ```
*/
/**
* assert that expr is truthy, with an optional details to describe
* the assertion. It is a tagged template literal like
* ```js
* assert(expr, details`....`);`
* ```
*
* The literal portions of the template are assumed non-sensitive, as
* are the `typeof` types of the substitution values. These are
* assembled into the thrown error message. The actual contents of the
* substitution values are assumed sensitive, to be revealed to
* the console only. We assume only the virtual platform's owner can read
* what is written to the console, where the owner is in a privileged
* position over computation running on that platform.
*
* The optional `optDetails` can be a string for backwards compatibility
* with the nodejs assertion library.
*
* @typedef { BaseAssert & {
* typeof: AssertTypeof,
* error: AssertMakeError,
* fail: AssertFail,
* equal: AssertEqual,
* string: AssertString,
* note: AssertNote,
* details: DetailsTag,
* Fail: FailTag,
* quote: AssertQuote,
* bare: AssertQuote,
* makeAssert: MakeAssert,
* } } Assert
*/