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tests/cases/compiler/truthinessPromiseCoercion.ts(7,9): error TS2801: This condition will always return true since this 'Promise<number>' is always defined.
tests/cases/compiler/truthinessPromiseCoercion.ts(11,5): error TS2801: This condition will always return true since this 'Promise<number>' is always defined.
tests/cases/compiler/truthinessPromiseCoercion.ts(32,9): error TS2801: This condition will always return true since this 'Promise<unknown>' is always defined.
tests/cases/compiler/truthinessPromiseCoercion.ts(40,9): error TS2801: This condition will always return true since this 'Promise<boolean>' is always defined.
tests/cases/compiler/truthinessPromiseCoercion.ts(43,9): error TS2801: This condition will always return true since this 'Promise<boolean>' is always defined.
==== tests/cases/compiler/truthinessPromiseCoercion.ts (5 errors) ====
declare const p: Promise<number>
declare const p2: null | Promise<number>
declare const obj: { p: Promise<unknown> }
declare function pf(): Promise<boolean>
async function f() {
if (p) {} // err
~
!!! error TS2801: This condition will always return true since this 'Promise<number>' is always defined.
!!! related TS2773 tests/cases/compiler/truthinessPromiseCoercion.ts:7:9: Did you forget to use 'await'?
if (!!p) {} // no err
if (p2) {} // no err
p ? f.arguments : f.arguments;
~
!!! error TS2801: This condition will always return true since this 'Promise<number>' is always defined.
!!! related TS2773 tests/cases/compiler/truthinessPromiseCoercion.ts:11:5: Did you forget to use 'await'?
!!p ? f.arguments : f.arguments;
p2 ? f.arguments : f.arguments;
}
// all ok
async function g() {
if (p) {
p;
}
if (p && p.then.length) {}
if (p) {
if (p) {
if (p) {
!!await (((((((p)))))));
}
}
}
}
async function h() {
if (obj.p) {} // error
~~~~~
!!! error TS2801: This condition will always return true since this 'Promise<unknown>' is always defined.
!!! related TS2773 tests/cases/compiler/truthinessPromiseCoercion.ts:32:9: Did you forget to use 'await'?
if (obj.p) { // ok
await obj.p;
}
if (obj.p && await obj.p) {} // ok
}
async function i(): Promise<string> {
if (pf()) { // error
~~~~
!!! error TS2801: This condition will always return true since this 'Promise<boolean>' is always defined.
!!! related TS2773 tests/cases/compiler/truthinessPromiseCoercion.ts:40:9: Did you forget to use 'await'?
return "true";
}
if (pf()) { // error
~~~~
!!! error TS2801: This condition will always return true since this 'Promise<boolean>' is always defined.
!!! related TS2773 tests/cases/compiler/truthinessPromiseCoercion.ts:43:9: Did you forget to use 'await'?
pf().then();
}
return "false";
}
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