1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
//// [inferentialTypingUsingApparentType3.ts]
interface Field<T> {
clean(input: T): T
}
class CharField implements Field<string> {
clean(input: string) {
return "Yup";
}
}
class NumberField implements Field<number> {
clean(input: number) {
return 123;
}
}
class ObjectField<A, T extends { [name: string]: Field<any> }> {
constructor(public fields: T) { }
}
var person = new ObjectField({
id: new NumberField(),
name: new CharField()
});
person.fields.id;
//// [inferentialTypingUsingApparentType3.js]
var CharField = /** @class */ (function () {
function CharField() {
}
CharField.prototype.clean = function (input) {
return "Yup";
};
return CharField;
}());
var NumberField = /** @class */ (function () {
function NumberField() {
}
NumberField.prototype.clean = function (input) {
return 123;
};
return NumberField;
}());
var ObjectField = /** @class */ (function () {
function ObjectField(fields) {
this.fields = fields;
}
return ObjectField;
}());
var person = new ObjectField({
id: new NumberField(),
name: new CharField()
});
person.fields.id;
|
