File: intersectionTypeReadonly.js

package info (click to toggle)
node-typescript 3.3.3333-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 324,548 kB
  • sloc: makefile: 6; sh: 3
file content (39 lines) | stat: -rw-r--r-- 1,221 bytes parent folder | download | duplicates (4)
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
//// [intersectionTypeReadonly.ts]
interface Base {
    readonly value: number;
}
interface Identical {
    readonly value: number;
}
interface Mutable {
    value: number;
}
interface DifferentType {
    readonly value: string;
}
interface DifferentName {
    readonly other: number;
}
let base: Base;
base.value = 12 // error, lhs can't be a readonly property
let identical: Base & Identical;
identical.value = 12; // error, lhs can't be a readonly property
let mutable: Base & Mutable;
mutable.value = 12; // error, lhs can't be a readonly property
let differentType: Base & DifferentType;
differentType.value = 12; // error, lhs can't be a readonly property
let differentName: Base & DifferentName;
differentName.value = 12; // error, property 'value' doesn't exist


//// [intersectionTypeReadonly.js]
var base;
base.value = 12; // error, lhs can't be a readonly property
var identical;
identical.value = 12; // error, lhs can't be a readonly property
var mutable;
mutable.value = 12; // error, lhs can't be a readonly property
var differentType;
differentType.value = 12; // error, lhs can't be a readonly property
var differentName;
differentName.value = 12; // error, property 'value' doesn't exist