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CHANGELOG.md

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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.

[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