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=== tests/cases/conformance/types/spread/spreadObjectOrFalsy.ts ===
function f1<T>(a: T & undefined) {
>f1 : Symbol(f1, Decl(spreadObjectOrFalsy.ts, 0, 0))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 0, 12))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 0, 15))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 0, 12))
return { ...a }; // Error
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 0, 15))
}
function f2<T>(a: T | T & undefined) {
>f2 : Symbol(f2, Decl(spreadObjectOrFalsy.ts, 2, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 4, 12))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 4, 15))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 4, 12))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 4, 12))
return { ...a };
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 4, 15))
}
function f3<T extends undefined>(a: T) {
>f3 : Symbol(f3, Decl(spreadObjectOrFalsy.ts, 6, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 8, 12))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 8, 33))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 8, 12))
return { ...a }; // Error
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 8, 33))
}
function f4<T extends undefined>(a: object | T) {
>f4 : Symbol(f4, Decl(spreadObjectOrFalsy.ts, 10, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 12, 12))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 12, 33))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 12, 12))
return { ...a };
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 12, 33))
}
function f5<S, T extends undefined>(a: S | T) {
>f5 : Symbol(f5, Decl(spreadObjectOrFalsy.ts, 14, 1))
>S : Symbol(S, Decl(spreadObjectOrFalsy.ts, 16, 12))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 16, 14))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 16, 36))
>S : Symbol(S, Decl(spreadObjectOrFalsy.ts, 16, 12))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 16, 14))
return { ...a };
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 16, 36))
}
function f6<T extends object | undefined>(a: T) {
>f6 : Symbol(f6, Decl(spreadObjectOrFalsy.ts, 18, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 20, 12))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 20, 42))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 20, 12))
return { ...a };
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 20, 42))
}
// Repro from #46976
function g1<T extends {}, A extends { z: (T | undefined) & T }>(a: A) {
>g1 : Symbol(g1, Decl(spreadObjectOrFalsy.ts, 22, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 26, 12))
>A : Symbol(A, Decl(spreadObjectOrFalsy.ts, 26, 25))
>z : Symbol(z, Decl(spreadObjectOrFalsy.ts, 26, 37))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 26, 12))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 26, 12))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 26, 64))
>A : Symbol(A, Decl(spreadObjectOrFalsy.ts, 26, 25))
const { z } = a;
>z : Symbol(z, Decl(spreadObjectOrFalsy.ts, 27, 11))
>a : Symbol(a, Decl(spreadObjectOrFalsy.ts, 26, 64))
return {
...z
>z : Symbol(z, Decl(spreadObjectOrFalsy.ts, 27, 11))
};
}
// Repro from #47028
interface DatafulFoo<T> {
>DatafulFoo : Symbol(DatafulFoo, Decl(spreadObjectOrFalsy.ts, 31, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 35, 21))
data: T;
>data : Symbol(DatafulFoo.data, Decl(spreadObjectOrFalsy.ts, 35, 25))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 35, 21))
}
class Foo<T extends string> {
>Foo : Symbol(Foo, Decl(spreadObjectOrFalsy.ts, 37, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 39, 10))
data: T | undefined;
>data : Symbol(Foo.data, Decl(spreadObjectOrFalsy.ts, 39, 29))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 39, 10))
bar() {
>bar : Symbol(Foo.bar, Decl(spreadObjectOrFalsy.ts, 40, 24))
if (this.hasData()) {
>this.hasData : Symbol(Foo.hasData, Decl(spreadObjectOrFalsy.ts, 45, 5))
>this : Symbol(Foo, Decl(spreadObjectOrFalsy.ts, 37, 1))
>hasData : Symbol(Foo.hasData, Decl(spreadObjectOrFalsy.ts, 45, 5))
this.data.toLocaleLowerCase();
>this.data.toLocaleLowerCase : Symbol(String.toLocaleLowerCase, Decl(lib.es5.d.ts, --, --))
>this.data : Symbol(data, Decl(spreadObjectOrFalsy.ts, 39, 29), Decl(spreadObjectOrFalsy.ts, 35, 25))
>data : Symbol(data, Decl(spreadObjectOrFalsy.ts, 39, 29), Decl(spreadObjectOrFalsy.ts, 35, 25))
>toLocaleLowerCase : Symbol(String.toLocaleLowerCase, Decl(lib.es5.d.ts, --, --))
}
}
hasData(): this is DatafulFoo<T> {
>hasData : Symbol(Foo.hasData, Decl(spreadObjectOrFalsy.ts, 45, 5))
>DatafulFoo : Symbol(DatafulFoo, Decl(spreadObjectOrFalsy.ts, 31, 1))
>T : Symbol(T, Decl(spreadObjectOrFalsy.ts, 39, 10))
return true;
}
}
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