WIP: Mobx3

[mweststrate]

MobX 3

MobX 3 will be a short lived major version that will be mainly used to deprecate some old behavior with clear warnings while moving to the new desired behavior in MobX. For example function values will be no longer converted to computed values automatically. Which was in some cases convenient, but mostly confusing. Since changing this behavior would change the semantics without build / compile errors, this transition will be done gradually and completed in MobX 4.

• observable(plainObject) will now clone instead of enhance the target object. Use extendObservable(target, target) if you still want the old behavior. See Proposal: Improve automatic conversion to observables #649
• stop autoconverting argument less functions into computed properties, See Remove inferring argumentless functions to computed properties in observable #532
• stop sharing global state by default with other mobx instances, See Global state sharing should by default be off #621
• Deprecate whyrun
• Remove not all (not recently) deprecated Mobx 2 methods
• Introduce a better modifier mechanism. Will probably not be introduced in 3.0 but 3.1
• Add support for ES6 Map conversion
• Process open todo's
• Test typescript 2 latest
• Kill stuff deprecated in MobX 2 & 3, including old modifier mechanism, clean up code paths where needed
• Update docs
• fix: mobx.observe does not call callback when computed property changes #486
• Revisit exception handling How should MobX handle errors in computed values and reactions? #731
• Undeprecate whyrun
• Normalize observe callbacks for boxed values
• Support Symbol.observable on boxed values -> non breaking, so 3.1 Support Symbol.observable #677
• Support Symbol.primitive on boxed values? -> non breaking, so 3.1 Consider implementing Symbol.toPrimitive on boxed primitives. #561
• Update deps of related packages (utils, react bindings, ...)
• Update examples

[coveralls]

Coverage increased (+0.6%) to 96.237% when pulling fdbcbd2 on mobx3 into 90f8f10 on master.

[coveralls]

Coverage increased (+0.6%) to 96.283% when pulling 9c35981 on mobx3 into 90f8f10 on master.

[JabX]

Why is whyRun being deprecated already? This is the debugging tool I use when I'm trying to understand why a reaction isn't working as expected. I don't think there's anything that could replace it?

[mweststrate]

@JabX basically because I had the impression that nobody is using those :) but if there are more people that use it, it can stay. I'll make a twitter poll soon.

[coveralls]

Coverage increased (+1.0%) to 96.684% when pulling ab0b591 on mobx3 into 6ed404b on master.

[coveralls]

Coverage increased (+1.0%) to 96.681% when pulling bf487a8 on mobx3 into 6ed404b on master.

[coveralls]

Coverage increased (+0.8%) to 96.523% when pulling 0eeabb5 on mobx3 into 6ed404b on master.

[coveralls]

Coverage increased (+0.8%) to 96.523% when pulling 2cc98ae on mobx3 into 6ed404b on master.