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=== tests/cases/conformance/controlFlow/controlFlowTruthiness.ts ===
declare function foo(): string | undefined;
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
function f1() {
>f1 : Symbol(f1, Decl(controlFlowTruthiness.ts, 0, 43))
let x = foo();
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 3, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
if (x) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 3, 7))
x; // string
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 3, 7))
}
else {
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 3, 7))
}
}
function f2() {
>f2 : Symbol(f2, Decl(controlFlowTruthiness.ts, 10, 1))
let x: string | undefined;
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 13, 7))
x = foo();
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 13, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
if (x) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 13, 7))
x; // string
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 13, 7))
}
else {
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 13, 7))
}
}
function f3() {
>f3 : Symbol(f3, Decl(controlFlowTruthiness.ts, 21, 1))
let x: string | undefined;
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 24, 7))
if (x = foo()) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 24, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
x; // string
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 24, 7))
}
else {
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 24, 7))
}
}
function f4() {
>f4 : Symbol(f4, Decl(controlFlowTruthiness.ts, 31, 1))
let x: string | undefined;
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 34, 7))
if (!(x = foo())) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 34, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 34, 7))
}
else {
x; // string
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 34, 7))
}
}
function f5() {
>f5 : Symbol(f5, Decl(controlFlowTruthiness.ts, 41, 1))
let x: string | undefined;
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 44, 7))
let y: string | undefined;
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 45, 7))
if (x = y = foo()) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 44, 7))
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 45, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
x; // string
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 44, 7))
y; // string | undefined
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 45, 7))
}
else {
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 44, 7))
y; // string | undefined
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 45, 7))
}
}
function f6() {
>f6 : Symbol(f6, Decl(controlFlowTruthiness.ts, 54, 1))
let x: string | undefined;
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 57, 7))
let y: string | undefined;
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 58, 7))
if (x = foo(), y = foo()) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 57, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 58, 7))
>foo : Symbol(foo, Decl(controlFlowTruthiness.ts, 0, 0))
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 57, 7))
y; // string
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 58, 7))
}
else {
x; // string | undefined
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 57, 7))
y; // string | undefined
>y : Symbol(y, Decl(controlFlowTruthiness.ts, 58, 7))
}
}
function f7(x: {}) {
>f7 : Symbol(f7, Decl(controlFlowTruthiness.ts, 67, 1))
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 69, 12))
if (x) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 69, 12))
x; // {}
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 69, 12))
}
else {
x; // {}
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 69, 12))
}
}
function f8<T>(x: T) {
>f8 : Symbol(f8, Decl(controlFlowTruthiness.ts, 76, 1))
>T : Symbol(T, Decl(controlFlowTruthiness.ts, 78, 12))
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 78, 15))
>T : Symbol(T, Decl(controlFlowTruthiness.ts, 78, 12))
if (x) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 78, 15))
x; // {}
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 78, 15))
}
else {
x; // {}
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 78, 15))
}
}
function f9<T extends object>(x: T) {
>f9 : Symbol(f9, Decl(controlFlowTruthiness.ts, 85, 1))
>T : Symbol(T, Decl(controlFlowTruthiness.ts, 87, 12))
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 87, 30))
>T : Symbol(T, Decl(controlFlowTruthiness.ts, 87, 12))
if (x) {
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 87, 30))
x; // {}
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 87, 30))
}
else {
x; // never
>x : Symbol(x, Decl(controlFlowTruthiness.ts, 87, 30))
}
}
|
