Fixed #278 and #291.

Fixed #290.

• Rewrote the way yield* expressions are handled by regenerator-runtime to follow the specification more closely and also fix #275.

• The regenerator-transform package is now compiled in loose mode: #265
• %GeneratorPrototype% now inherits from %IteratorPrototype%, and the Symbol.iterator method has been moved to %IteratorPrototype%: #264
• Arrow functions inside generator functions are now properly ignored by the compiler, like other functions: #277
• Calls to generator.return(...) can now be overridden by enclosing finally blocks: #255

Labeled break is now supported for any labeled statement, not just loops (#162). The async function transform can be disabled by passing a truthy value value for options.disableAsync (#161). The runtime is now strict-mode-compliant (#165), and can be required as a module via require("regenerator/runtime-module") (#166). Core functions in the runtime no longer contain try-catch statements that could prevent optimization (#150, ae838ef).

Stopped attempting to polyfill the promise dependency (#142). Made yield* work with string arguments (#157). Calling .next() on a completed generator now returns { done: true } instead of throwing a TypeError (#158). The regeneratorRuntime.isGeneratorFunction predicate is no longer vulnerable to minification of the GeneratorFunction constructor (#156). Error parameters for catch blocks are now renamed more correctly (#154).

Removed Content Security Policy violations from https://github.com/facebook/regenerator/blob/master/runtime.js due to the use of the Function constructor as an indirect eval mechanism (#112).

This change has the potential for backwards incompatibility if you are using a minifier that does not preserve the name of the GeneratorFunction constructor. To work around this problem, either consider using https://github.com/facebook/regenerator/blob/master/runtime.js unminified, or find a way to tell you minifier not to mangle the GeneratorFunction name. If this extra burden is super annoying, please file an issue letting me know.

Upgraded Recast to the latest version for parsing speed improvements, and fixed a bug that kept await expressions from throwing exceptions for rejected Promises (#135).

After examining some code using Regenerator in the wild, I decided to reinstate require("regenerator").runtime.path, which specifies the full path of https://github.com/facebook/regenerator/blob/master/runtime.js in case you need to read that file in your projects.

It is also now possible to inject the runtime directly into the transformed AST by calling require("regenerator").transform(ast, { includeRuntime: true }). This is especially useful when you have multiple AST transform functions (in addition to require("regenerator").transform) that you want to compose together without reparsing/reprinting the source code.

Pull request #101 has been merged at last! The master branch now provides full support for async functions and await expressions! This is huge!

The public API of the package now obeys more of the conventions that have emerged for AST-driven transformation projects. Most notably, require("regenerator").compile(source, options).code is now the preferred way to do what require("regenerator")(source, options) used to do.