Last active
June 25, 2019 15:50
-
-
Save khyperia/1d088ff330416bea0eb1c51489bcdad9 to your computer and use it in GitHub Desktop.
Super calls in computed field keys
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class C extends B { | |
field = 2; | |
constructor() { | |
class D { | |
[super()]; | |
} | |
} | |
} | |
// --- | |
let .initializers = [() => this.field = 2]; | |
class C extends B { | |
constructor() { | |
let .fieldKeys = [(super(), .initializers[0]())]; // accesses inner .initializers, not outer | |
let .initializers = [() => this[.fieldKeys[0]] = undefined]; | |
class D { | |
// ... | |
} | |
} | |
} |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
let .initializers = [() => this.field = 2]; | |
class C extends B { | |
constructor() { | |
let .fieldKeys = [(super(), .initializers[0]())]; // accesses outer .initializers, not inner | |
{ | |
let .initializers = [() => this[.fieldKeys[0]] = undefined]; | |
class D { | |
// ... | |
} | |
} | |
} | |
} |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class C extends B { | |
field = 2; | |
constructor() { | |
class D { | |
[super()]; | |
constructor(){} | |
[f()] = g(); | |
} | |
} | |
} | |
// --- | |
let .initializers = [() => this.field = 2]; | |
class C extends B { | |
constructor() { | |
let .fieldKeys = [undefined, undefined]; | |
class D { | |
.fieldKeys[0] = (super(), .initializers[0]()); | |
{ | |
let .initializers = [ | |
() => this[.fieldKeys[0]] = undefined, | |
() => this[.fieldKeys[1]] = g(), | |
]; | |
constructor() { | |
.initializers[0](); | |
.initializers[1](); | |
} | |
} | |
.fieldKeys[1] = f(); | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment