Broken @lazyInject decorator in TypeScript >=3.7

[BANOnotIT]

@lazyInject relies on instrumenting class prototype and prototype bubble mechanism. For now in TS >= 3.7 any of decorators from inversify-inject-decorators don't work

Why worked earliar

1. @lazyInject* instruments prototype of class with getter and setter for field something
2. developer tries to access that property like so: classInstance.something.doSomething
   1. JS finds no something propery in current instance
   2. JS find something getter in classInstance.__proto__
   3. JS calls inversify resolver
   4. ...
   5. PROFIT!!!

Current Behavior

1. @lazyInject* instruments prototype of class with getter and setter for field something
2. TS instruments classInstance with something getter on construction
3. developer tries to access that property like so: classInstance.something.doSomething
   1. JS finds something propery getter in current instance
   2. JS find something getter in classInstance.__proto__
   3. JS calls inversify resolver
   4. ...
   5. PROFIT!!!

Possible Solution

For now there are two solutions:

1. downgrade to TS 3.6
2. use "useDefineForClassFields": false in tsconfig.json -- set by default

[MirKml]

Hm, seems as potential trouble in the future, because TS team wants to use DefineForClassFields compiler strategy as default as I understood.

[TheBudgetMan]

This is an issue for us as well, because of using mobX with Inversify. MobX 6.x requires the setting of useDefineForClassFields to true (or the Babel equivalent ["@babel/plugin-proposal-class-properties", { "loose": false }]), which breaks lazyInject. Is there any update on this issue?

[unknown1337]

This is an issue for us as well, because of using mobX with Inversify. MobX 6.x requires the setting of useDefineForClassFields to true (or the Babel equivalent ["@babel/plugin-proposal-class-properties", { "loose": false }]), which breaks lazyInject. Is there any update on this issue?

same issue here :(