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Changelog

Disclaimer: This changelog is NOT created by the original author of JS Interpreter, instead it is created by examining the changes made to the original repo of JS-Interpreter, to identify new features, bug fixes and breaking changes.

The version is chosen based on the type of changes according to the semver guidelines.

[5.2.1] - 2024-09-17

Commit: c73dbb09

Added

  • Add setGlobalScope function

Other

  • Ownership change

[5.1.2] - 2024-05-17

Commit: 9c31dcb

Fixed

  • Fix missing names on array functions
  • Fix return in a task.

Other

  • Compress the polyfills.
  • Make completion type check more explicit.

[5.1.1] - 2024-03-17

Commit: 697a109

Added

  • Add 'window' as fallback for globalThis or this.

Fixed

  • Fix array splice where arguments are missing
  • Fix throw inside Date toISOString.

Other

  • Upgrade global object detection in Acorn
  • Fold arrayPseudoToNative_ into Function's .apply
  • Overhaul nativeToPseudo and pseudoToNative
  • Tighten output of matches.

[5.1.0] - 2023-11-17

Commit: 392ab77

Added

  • Add getStatus function.

Fixed

  • Fix typo in error message

[5.0.0] - 2023-08-18

Commit: 10a8cf5

Added

  • Add trailing commas in obj literals

Removed

  • Remove unused tokTypes array from Acorn.
  • Remove unused 'tokenize' function from Acorn.
  • Remove two obsolete unused properties from Acorn.
  • Remove support for ES3 from Acorn
  • Remove ES6 's' and 'y' flags from Acorn's Regexp

Fixed

  • Fix null vs undefined type.
  • Fix Acorn URL
  • Fix infinite recursion trap on last step

Other

  • Support serialization of setTimeout (and friends)
  • Support setTimeout and related functions.
  • Advanced compilation of Acorn
  • Quote Acorn's options.
  • Acorn meets the style guide.
  • Turn on verbose warnings in build script.
  • Simpler approach for func params named 'arguments'
  • Don't define arguments if param is named that.
  • Move function name out of inner scope
  • Catchable readonly variables
  • Change @return to @returns
  • Stop exporting six unused Acorn properties/methods
  • Reduce Array polyfills by 1 KB.
  • Inline CatchClause step
  • Simplify 'catch' and 'with' blocks.
  • Speed up serialization on larger environments
  • Revert removal of recursion
  • Double speed of serialization.
  • Clear return value before expression
  • Set or unset .value if error is thrown.
  • Inprove consistency between array polyfills.
  • Underscore unused catch variables.
  • Use case statements.
  • Fold special numbers into special values
  • Factor out location object encoding/decoding.
  • Expose VALUE_IN_DESCRIPTOR symbol
  • Throw real errors during init

[4.0.0] - 2022-12-06

Commit: 05d55b8

Added

  • Bump Acorn from 0.4.1 to 0.5.0
  • Expose VALUE_IN_DESCRIPTOR symbol

Removed

  • Remove support for ES3 from Acorn
  • Remove ES6 's' and 'y' flags from Acorn's Regexp

Changed

  • Fold special numbers into special values
  • Factor out location object encoding/decoding.
  • Throw real errors during init

[3.0.0] - 2022-08-23

Commit: c4c5736

Added

  • Add script for compiling acorn_interpreter.js
  • Add getters and setters for stateStack.
  • Add support for sparse arrays in Array polyfills
  • Add function names to error stack
  • Add a 'stack' property to errors.

Fixed

  • Fix missing node type when scope spidering.
  • Fix serialization/deserialization.
  • Fix 'this' bug in Function wrapper.
  • Fix RegExp.test not updating lastIndex
  • Fix unusual RegExp constructor patterns.

Changed

  • Explicitly close() finished RegExp workers.
  • Switch from blacklist to whitelist of node types
  • Decompose (de)serialize functions.
  • Recompile compressed file to be ES5.
  • Remove start/end props from deserialized polyfills
  • Compress location data in serialization format
  • Use globalThis to allow import to work
  • Safety check if top node is CallExpression

[2.3.1] - 2021-08-11

Commit: 054c7d4

Added

No change is added in this commit, just a few demos are updated, this version is published to stay up to speed with the commit hash of the original repo.

[2.3.0] - 2021-04-06

Commit: cb740ed

Added

  • Add timeout for executing polyfills.
  • Add .name property to functions
  • Add placeholder getter/setter functions on props
  • Add announcement newsgroup address
  • Use polyfills for Array functions.
  • Support ‘null’ for ‘this’ value in strict mode.

Fixed

  • Use Object.defineProperty instead of assignment.
  • Fix attributes on Function.prototype
    • ‘typeof Function.prototype’ was reporting ‘object’, should be a ‘function’
  • Handle ‘new’ calls on primitives.
  • Catch calling date function on non-dates
  • Catch invalid arguments on string’s localeCompare
  • Called function should determine strict mode

Removed

  • Remove enumerability from most global properties.

Changes

  • New version of acorn
  • In non-strict mode this needs to be boxed when calling a function.
  • ‘window’ and ‘self’ are the only two enumerable properties on the global object.

[2.2.0] - 2020-02-18

Commit: d20cb5a

Added

  • Partial support of JSON.stringify args.
    • Support pretty printing. Support array filtering. Do not support function replacers (this would need to be a polyfill).

Fixed

  • Fix security hole in getOwnPropertyDescriptor
  • Fix some JS Doc types
  • Throw error where getter/setter not supported
    • There are several places where getters and setters are not handled correctly. Such as array’s .length. If a getter or setter is encountered in one of these places, throw an error, rather than performing invalid behaviour.

Removed

  • Don’t set proto prop when exporting an object
    • proto is a magic property in most runtimes, but not in JS-Interpreter.
  • Remove .isObject property
    • This property dates back to when primitives were also wrapped as objects and a way to distinguish objects and primitives was needed. Hopefully this change will also annoy @XmiliaH :)

Changes

  • Split scopes into scope object and data object
    • Previously a scope object was a regular object with two extra properties tacked on: strict and parentScope. Issue #183 proved that sometimes one needs multiple scopes with different parentScope values. This PR creates a scope object with the above two properties, as well as a third property (‘.object’) that points to the regular object. This allows two scopes to have different parentScopes, while sharing the same object for variables.
    • Minor API change for advanced threading and serialization.

[2.1.0] - 2020-02-10

Commit: 28ba7f2

Added

  • Non-constructable functions don’t have .prototype
    • Previously escape.prototype was set to undefined. Now it is not defined.
  • Add self-interpreter demo.

Fixed

  • Use iteration (not recursion) for polyfill steps.
  • Revert "Remove unneeded error class"
    • Resovles #177
  • Fix alert(true.toString())
    • Previously booleans and strings (but not numbers) would return ‘undefined’.
  • Fix String and Number constructors with no arg.
    • Previously alert(Number()) -> NaN and alert(String()) -> ‘undefined’.
  • Move constructor creation into createFunctionBase_
    • Fixes #175

Removed

  • Remove ancient constants.

[2.0.0] - 2020-02-10

Commit: d6809ac

  • Initial version created from the original repo