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//// [mappedTypes6.ts]
type T00<T> = { [P in keyof T]: T[P] };
type T01<T> = { [P in keyof T]?: T[P] };
type T02<T> = { [P in keyof T]+?: T[P] };
type T03<T> = { [P in keyof T]-?: T[P] };
type T04<T> = { readonly [P in keyof T]: T[P] };
type T05<T> = { readonly [P in keyof T]?: T[P] };
type T06<T> = { readonly [P in keyof T]+?: T[P] };
type T07<T> = { readonly [P in keyof T]-?: T[P] };
type T08<T> = { +readonly [P in keyof T]: T[P] };
type T09<T> = { +readonly [P in keyof T]?: T[P] };
type T10<T> = { +readonly [P in keyof T]+?: T[P] };
type T11<T> = { +readonly [P in keyof T]-?: T[P] };
type T12<T> = { -readonly [P in keyof T]: T[P] };
type T13<T> = { -readonly [P in keyof T]?: T[P] };
type T14<T> = { -readonly [P in keyof T]+?: T[P] };
type T15<T> = { -readonly [P in keyof T]-?: T[P] };
function f1<T>(x: Required<T>, y: T, z: Partial<T>) {
x = x;
x = y; // Error
x = z; // Error
y = x;
y = y;
y = z; // Error
z = x;
z = y;
z = z;
}
type Denullified<T> = { [P in keyof T]-?: NonNullable<T[P]> };
function f2<T>(w: Denullified<T>, x: Required<T>, y: T, z: Partial<T>) {
w = w;
w = x; // Error
w = y; // Error
w = z; // Error
x = w;
x = x;
x = y; // Error
x = z; // Error
y = w;
y = x;
y = y;
y = z; // Error
z = w;
z = x;
z = y;
z = z;
}
function f3<T>(w: Denullified<T>, x: Required<T>, y: T, z: Partial<T>) {
w = {}; // Error
x = {}; // Error
y = {}; // Error
z = {};
}
type Readwrite<T> = {
-readonly [P in keyof T]: T[P];
}
function f10<T>(x: Readonly<T>, y: T, z: Readwrite<T>) {
x = x;
x = y;
x = z;
y = x;
y = y;
y = z;
z = x;
z = y;
z = z;
}
type Foo = {
a: number;
b: number | undefined;
c?: number;
d?: number | undefined;
}
declare let x1: Foo;
x1.a; // number
x1.b; // number | undefined
x1.c; // number | undefined
x1.d; // number | undefined
x1 = { a: 1 }; // Error
x1 = { a: 1, b: 1 };
x1 = { a: 1, b: 1, c: 1 };
x1 = { a: 1, b: 1, c: 1, d: 1 };
declare let x2: Required<Foo>;
x1.a; // number
x1.b; // number | undefined
x1.c; // number
x1.d; // number
x2 = { a: 1 }; // Error
x2 = { a: 1, b: 1 }; // Error
x2 = { a: 1, b: 1, c: 1 }; // Error
x2 = { a: 1, b: 1, c: 1, d: 1 };
type Bar = {
a: number;
readonly b: number;
}
declare let x3: Bar;
x3.a = 1;
x3.b = 1; // Error
declare let x4: Readonly<Bar>;
x4.a = 1; // Error
x4.b = 1; // Error
declare let x5: Readwrite<Bar>;
x5.a = 1;
x5.b = 1;
//// [mappedTypes6.js]
"use strict";
function f1(x, y, z) {
x = x;
x = y; // Error
x = z; // Error
y = x;
y = y;
y = z; // Error
z = x;
z = y;
z = z;
}
function f2(w, x, y, z) {
w = w;
w = x; // Error
w = y; // Error
w = z; // Error
x = w;
x = x;
x = y; // Error
x = z; // Error
y = w;
y = x;
y = y;
y = z; // Error
z = w;
z = x;
z = y;
z = z;
}
function f3(w, x, y, z) {
w = {}; // Error
x = {}; // Error
y = {}; // Error
z = {};
}
function f10(x, y, z) {
x = x;
x = y;
x = z;
y = x;
y = y;
y = z;
z = x;
z = y;
z = z;
}
x1.a; // number
x1.b; // number | undefined
x1.c; // number | undefined
x1.d; // number | undefined
x1 = { a: 1 }; // Error
x1 = { a: 1, b: 1 };
x1 = { a: 1, b: 1, c: 1 };
x1 = { a: 1, b: 1, c: 1, d: 1 };
x1.a; // number
x1.b; // number | undefined
x1.c; // number
x1.d; // number
x2 = { a: 1 }; // Error
x2 = { a: 1, b: 1 }; // Error
x2 = { a: 1, b: 1, c: 1 }; // Error
x2 = { a: 1, b: 1, c: 1, d: 1 };
x3.a = 1;
x3.b = 1; // Error
x4.a = 1; // Error
x4.b = 1; // Error
x5.a = 1;
x5.b = 1;
//// [mappedTypes6.d.ts]
declare type T00<T> = {
[P in keyof T]: T[P];
};
declare type T01<T> = {
[P in keyof T]?: T[P];
};
declare type T02<T> = {
[P in keyof T]+?: T[P];
};
declare type T03<T> = {
[P in keyof T]-?: T[P];
};
declare type T04<T> = {
readonly [P in keyof T]: T[P];
};
declare type T05<T> = {
readonly [P in keyof T]?: T[P];
};
declare type T06<T> = {
readonly [P in keyof T]+?: T[P];
};
declare type T07<T> = {
readonly [P in keyof T]-?: T[P];
};
declare type T08<T> = {
+readonly [P in keyof T]: T[P];
};
declare type T09<T> = {
+readonly [P in keyof T]?: T[P];
};
declare type T10<T> = {
+readonly [P in keyof T]+?: T[P];
};
declare type T11<T> = {
+readonly [P in keyof T]-?: T[P];
};
declare type T12<T> = {
-readonly [P in keyof T]: T[P];
};
declare type T13<T> = {
-readonly [P in keyof T]?: T[P];
};
declare type T14<T> = {
-readonly [P in keyof T]+?: T[P];
};
declare type T15<T> = {
-readonly [P in keyof T]-?: T[P];
};
declare function f1<T>(x: Required<T>, y: T, z: Partial<T>): void;
declare type Denullified<T> = {
[P in keyof T]-?: NonNullable<T[P]>;
};
declare function f2<T>(w: Denullified<T>, x: Required<T>, y: T, z: Partial<T>): void;
declare function f3<T>(w: Denullified<T>, x: Required<T>, y: T, z: Partial<T>): void;
declare type Readwrite<T> = {
-readonly [P in keyof T]: T[P];
};
declare function f10<T>(x: Readonly<T>, y: T, z: Readwrite<T>): void;
declare type Foo = {
a: number;
b: number | undefined;
c?: number;
d?: number | undefined;
};
declare let x1: Foo;
declare let x2: Required<Foo>;
declare type Bar = {
a: number;
readonly b: number;
};
declare let x3: Bar;
declare let x4: Readonly<Bar>;
declare let x5: Readwrite<Bar>;
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