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|
=== tests/cases/compiler/discriminantPropertyCheck.ts ===
type Item = Item1 | Item2;
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
>Item1 : Symbol(Item1, Decl(discriminantPropertyCheck.ts, 4, 1))
>Item2 : Symbol(Item2, Decl(discriminantPropertyCheck.ts, 11, 1))
interface Base {
>Base : Symbol(Base, Decl(discriminantPropertyCheck.ts, 0, 26))
bar: boolean;
>bar : Symbol(Base.bar, Decl(discriminantPropertyCheck.ts, 2, 16))
}
interface Item1 extends Base {
>Item1 : Symbol(Item1, Decl(discriminantPropertyCheck.ts, 4, 1))
>Base : Symbol(Base, Decl(discriminantPropertyCheck.ts, 0, 26))
kind: "A";
>kind : Symbol(Item1.kind, Decl(discriminantPropertyCheck.ts, 6, 30))
foo: string | undefined;
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
baz: boolean;
>baz : Symbol(Item1.baz, Decl(discriminantPropertyCheck.ts, 8, 28))
qux: true;
>qux : Symbol(Item1.qux, Decl(discriminantPropertyCheck.ts, 9, 17))
}
interface Item2 extends Base {
>Item2 : Symbol(Item2, Decl(discriminantPropertyCheck.ts, 11, 1))
>Base : Symbol(Base, Decl(discriminantPropertyCheck.ts, 0, 26))
kind: "B";
>kind : Symbol(Item2.kind, Decl(discriminantPropertyCheck.ts, 13, 30))
foo: string | undefined;
>foo : Symbol(Item2.foo, Decl(discriminantPropertyCheck.ts, 14, 14))
baz: boolean;
>baz : Symbol(Item2.baz, Decl(discriminantPropertyCheck.ts, 15, 28))
qux: false;
>qux : Symbol(Item2.qux, Decl(discriminantPropertyCheck.ts, 16, 17))
}
function goo1(x: Item) {
>goo1 : Symbol(goo1, Decl(discriminantPropertyCheck.ts, 18, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 20, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.kind === "A" && x.foo !== undefined) {
>x.kind : Symbol(kind, Decl(discriminantPropertyCheck.ts, 6, 30), Decl(discriminantPropertyCheck.ts, 13, 30))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 20, 14))
>kind : Symbol(kind, Decl(discriminantPropertyCheck.ts, 6, 30), Decl(discriminantPropertyCheck.ts, 13, 30))
>x.foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 20, 14))
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>undefined : Symbol(undefined)
x.foo.length;
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 20, 14))
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function goo2(x: Item) {
>goo2 : Symbol(goo2, Decl(discriminantPropertyCheck.ts, 24, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 26, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.foo !== undefined && x.kind === "A") {
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 26, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>undefined : Symbol(undefined)
>x.kind : Symbol(kind, Decl(discriminantPropertyCheck.ts, 6, 30), Decl(discriminantPropertyCheck.ts, 13, 30))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 26, 14))
>kind : Symbol(kind, Decl(discriminantPropertyCheck.ts, 6, 30), Decl(discriminantPropertyCheck.ts, 13, 30))
x.foo.length; // Error, intervening discriminant guard
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 26, 14))
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function foo1(x: Item) {
>foo1 : Symbol(foo1, Decl(discriminantPropertyCheck.ts, 30, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 32, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.bar && x.foo !== undefined) {
>x.bar : Symbol(Base.bar, Decl(discriminantPropertyCheck.ts, 2, 16))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 32, 14))
>bar : Symbol(Base.bar, Decl(discriminantPropertyCheck.ts, 2, 16))
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 32, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>undefined : Symbol(undefined)
x.foo.length;
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 32, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function foo2(x: Item) {
>foo2 : Symbol(foo2, Decl(discriminantPropertyCheck.ts, 36, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 38, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.foo !== undefined && x.bar) {
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 38, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>undefined : Symbol(undefined)
>x.bar : Symbol(Base.bar, Decl(discriminantPropertyCheck.ts, 2, 16))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 38, 14))
>bar : Symbol(Base.bar, Decl(discriminantPropertyCheck.ts, 2, 16))
x.foo.length;
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 38, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function foo3(x: Item) {
>foo3 : Symbol(foo3, Decl(discriminantPropertyCheck.ts, 42, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 44, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.baz && x.foo !== undefined) {
>x.baz : Symbol(baz, Decl(discriminantPropertyCheck.ts, 8, 28), Decl(discriminantPropertyCheck.ts, 15, 28))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 44, 14))
>baz : Symbol(baz, Decl(discriminantPropertyCheck.ts, 8, 28), Decl(discriminantPropertyCheck.ts, 15, 28))
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 44, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>undefined : Symbol(undefined)
x.foo.length;
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 44, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function foo4(x: Item) {
>foo4 : Symbol(foo4, Decl(discriminantPropertyCheck.ts, 48, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 50, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.foo !== undefined && x.baz) {
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 50, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>undefined : Symbol(undefined)
>x.baz : Symbol(baz, Decl(discriminantPropertyCheck.ts, 8, 28), Decl(discriminantPropertyCheck.ts, 15, 28))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 50, 14))
>baz : Symbol(baz, Decl(discriminantPropertyCheck.ts, 8, 28), Decl(discriminantPropertyCheck.ts, 15, 28))
x.foo.length;
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 50, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function foo5(x: Item) {
>foo5 : Symbol(foo5, Decl(discriminantPropertyCheck.ts, 54, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 56, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.qux && x.foo !== undefined) {
>x.qux : Symbol(qux, Decl(discriminantPropertyCheck.ts, 9, 17), Decl(discriminantPropertyCheck.ts, 16, 17))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 56, 14))
>qux : Symbol(qux, Decl(discriminantPropertyCheck.ts, 9, 17), Decl(discriminantPropertyCheck.ts, 16, 17))
>x.foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 56, 14))
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>undefined : Symbol(undefined)
x.foo.length;
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 56, 14))
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
function foo6(x: Item) {
>foo6 : Symbol(foo6, Decl(discriminantPropertyCheck.ts, 60, 1))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 62, 14))
>Item : Symbol(Item, Decl(discriminantPropertyCheck.ts, 0, 0))
if (x.foo !== undefined && x.qux) {
>x.foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 62, 14))
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 7, 14), Decl(discriminantPropertyCheck.ts, 14, 14))
>undefined : Symbol(undefined)
>x.qux : Symbol(qux, Decl(discriminantPropertyCheck.ts, 9, 17), Decl(discriminantPropertyCheck.ts, 16, 17))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 62, 14))
>qux : Symbol(qux, Decl(discriminantPropertyCheck.ts, 9, 17), Decl(discriminantPropertyCheck.ts, 16, 17))
x.foo.length; // Error, intervening discriminant guard
>x.foo.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>x.foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>x : Symbol(x, Decl(discriminantPropertyCheck.ts, 62, 14))
>foo : Symbol(Item1.foo, Decl(discriminantPropertyCheck.ts, 7, 14))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
}
}
// Repro from #27493
enum Types { Str = 1, Num = 2 }
>Types : Symbol(Types, Decl(discriminantPropertyCheck.ts, 66, 1))
>Str : Symbol(Types.Str, Decl(discriminantPropertyCheck.ts, 70, 12))
>Num : Symbol(Types.Num, Decl(discriminantPropertyCheck.ts, 70, 21))
type Instance = StrType | NumType;
>Instance : Symbol(Instance, Decl(discriminantPropertyCheck.ts, 70, 31))
>StrType : Symbol(StrType, Decl(discriminantPropertyCheck.ts, 72, 34))
>NumType : Symbol(NumType, Decl(discriminantPropertyCheck.ts, 78, 1))
interface StrType {
>StrType : Symbol(StrType, Decl(discriminantPropertyCheck.ts, 72, 34))
type: Types.Str;
>type : Symbol(StrType.type, Decl(discriminantPropertyCheck.ts, 74, 19))
>Types : Symbol(Types, Decl(discriminantPropertyCheck.ts, 66, 1))
>Str : Symbol(Types.Str, Decl(discriminantPropertyCheck.ts, 70, 12))
value: string;
>value : Symbol(StrType.value, Decl(discriminantPropertyCheck.ts, 75, 20))
length: number;
>length : Symbol(StrType.length, Decl(discriminantPropertyCheck.ts, 76, 18))
}
interface NumType {
>NumType : Symbol(NumType, Decl(discriminantPropertyCheck.ts, 78, 1))
type: Types.Num;
>type : Symbol(NumType.type, Decl(discriminantPropertyCheck.ts, 80, 19))
>Types : Symbol(Types, Decl(discriminantPropertyCheck.ts, 66, 1))
>Num : Symbol(Types.Num, Decl(discriminantPropertyCheck.ts, 70, 21))
value: number;
>value : Symbol(NumType.value, Decl(discriminantPropertyCheck.ts, 81, 20))
}
function func2(inst: Instance) {
>func2 : Symbol(func2, Decl(discriminantPropertyCheck.ts, 83, 1))
>inst : Symbol(inst, Decl(discriminantPropertyCheck.ts, 85, 15))
>Instance : Symbol(Instance, Decl(discriminantPropertyCheck.ts, 70, 31))
while (true) {
switch (inst.type) {
>inst.type : Symbol(type, Decl(discriminantPropertyCheck.ts, 74, 19), Decl(discriminantPropertyCheck.ts, 80, 19))
>inst : Symbol(inst, Decl(discriminantPropertyCheck.ts, 85, 15))
>type : Symbol(type, Decl(discriminantPropertyCheck.ts, 74, 19), Decl(discriminantPropertyCheck.ts, 80, 19))
case Types.Str: {
>Types.Str : Symbol(Types.Str, Decl(discriminantPropertyCheck.ts, 70, 12))
>Types : Symbol(Types, Decl(discriminantPropertyCheck.ts, 66, 1))
>Str : Symbol(Types.Str, Decl(discriminantPropertyCheck.ts, 70, 12))
inst.value.length;
>inst.value.length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
>inst.value : Symbol(StrType.value, Decl(discriminantPropertyCheck.ts, 75, 20))
>inst : Symbol(inst, Decl(discriminantPropertyCheck.ts, 85, 15))
>value : Symbol(StrType.value, Decl(discriminantPropertyCheck.ts, 75, 20))
>length : Symbol(String.length, Decl(lib.es5.d.ts, --, --))
break;
}
case Types.Num: {
>Types.Num : Symbol(Types.Num, Decl(discriminantPropertyCheck.ts, 70, 21))
>Types : Symbol(Types, Decl(discriminantPropertyCheck.ts, 66, 1))
>Num : Symbol(Types.Num, Decl(discriminantPropertyCheck.ts, 70, 21))
inst.value.toExponential;
>inst.value.toExponential : Symbol(Number.toExponential, Decl(lib.es5.d.ts, --, --))
>inst.value : Symbol(NumType.value, Decl(discriminantPropertyCheck.ts, 81, 20))
>inst : Symbol(inst, Decl(discriminantPropertyCheck.ts, 85, 15))
>value : Symbol(NumType.value, Decl(discriminantPropertyCheck.ts, 81, 20))
>toExponential : Symbol(Number.toExponential, Decl(lib.es5.d.ts, --, --))
break;
}
}
}
}
// Repro from #29106
const f = (_a: string, _b: string): void => {};
>f : Symbol(f, Decl(discriminantPropertyCheck.ts, 102, 5))
>_a : Symbol(_a, Decl(discriminantPropertyCheck.ts, 102, 11))
>_b : Symbol(_b, Decl(discriminantPropertyCheck.ts, 102, 22))
interface A {
>A : Symbol(A, Decl(discriminantPropertyCheck.ts, 102, 47))
a?: string;
>a : Symbol(A.a, Decl(discriminantPropertyCheck.ts, 104, 13))
b?: string;
>b : Symbol(A.b, Decl(discriminantPropertyCheck.ts, 105, 13))
}
interface B {
>B : Symbol(B, Decl(discriminantPropertyCheck.ts, 107, 1))
a: string;
>a : Symbol(B.a, Decl(discriminantPropertyCheck.ts, 109, 13))
b: string;
>b : Symbol(B.b, Decl(discriminantPropertyCheck.ts, 110, 12))
}
type U = A | B;
>U : Symbol(U, Decl(discriminantPropertyCheck.ts, 112, 1))
>A : Symbol(A, Decl(discriminantPropertyCheck.ts, 102, 47))
>B : Symbol(B, Decl(discriminantPropertyCheck.ts, 107, 1))
const u: U = {} as any;
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>U : Symbol(U, Decl(discriminantPropertyCheck.ts, 112, 1))
u.a && u.b && f(u.a, u.b);
>u.a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u.b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
>f : Symbol(f, Decl(discriminantPropertyCheck.ts, 102, 5))
>u.a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u.b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
u.b && u.a && f(u.a, u.b);
>u.b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
>u.a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>f : Symbol(f, Decl(discriminantPropertyCheck.ts, 102, 5))
>u.a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>a : Symbol(a, Decl(discriminantPropertyCheck.ts, 104, 13), Decl(discriminantPropertyCheck.ts, 109, 13))
>u.b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
>u : Symbol(u, Decl(discriminantPropertyCheck.ts, 116, 5))
>b : Symbol(b, Decl(discriminantPropertyCheck.ts, 105, 13), Decl(discriminantPropertyCheck.ts, 110, 12))
// Repro from #29012
type Additive = '+' | '-';
>Additive : Symbol(Additive, Decl(discriminantPropertyCheck.ts, 120, 26))
type Multiplicative = '*' | '/';
>Multiplicative : Symbol(Multiplicative, Decl(discriminantPropertyCheck.ts, 124, 26))
interface AdditiveObj {
>AdditiveObj : Symbol(AdditiveObj, Decl(discriminantPropertyCheck.ts, 125, 32))
key: Additive
>key : Symbol(AdditiveObj.key, Decl(discriminantPropertyCheck.ts, 127, 23))
>Additive : Symbol(Additive, Decl(discriminantPropertyCheck.ts, 120, 26))
}
interface MultiplicativeObj {
>MultiplicativeObj : Symbol(MultiplicativeObj, Decl(discriminantPropertyCheck.ts, 129, 1))
key: Multiplicative
>key : Symbol(MultiplicativeObj.key, Decl(discriminantPropertyCheck.ts, 131, 29))
>Multiplicative : Symbol(Multiplicative, Decl(discriminantPropertyCheck.ts, 124, 26))
}
type Obj = AdditiveObj | MultiplicativeObj
>Obj : Symbol(Obj, Decl(discriminantPropertyCheck.ts, 133, 1))
>AdditiveObj : Symbol(AdditiveObj, Decl(discriminantPropertyCheck.ts, 125, 32))
>MultiplicativeObj : Symbol(MultiplicativeObj, Decl(discriminantPropertyCheck.ts, 129, 1))
export function foo(obj: Obj) {
>foo : Symbol(foo, Decl(discriminantPropertyCheck.ts, 135, 42))
>obj : Symbol(obj, Decl(discriminantPropertyCheck.ts, 137, 20))
>Obj : Symbol(Obj, Decl(discriminantPropertyCheck.ts, 133, 1))
switch (obj.key) {
>obj.key : Symbol(key, Decl(discriminantPropertyCheck.ts, 127, 23), Decl(discriminantPropertyCheck.ts, 131, 29))
>obj : Symbol(obj, Decl(discriminantPropertyCheck.ts, 137, 20))
>key : Symbol(key, Decl(discriminantPropertyCheck.ts, 127, 23), Decl(discriminantPropertyCheck.ts, 131, 29))
case '+': {
onlyPlus(obj.key);
>onlyPlus : Symbol(onlyPlus, Decl(discriminantPropertyCheck.ts, 144, 1))
>obj.key : Symbol(AdditiveObj.key, Decl(discriminantPropertyCheck.ts, 127, 23))
>obj : Symbol(obj, Decl(discriminantPropertyCheck.ts, 137, 20))
>key : Symbol(AdditiveObj.key, Decl(discriminantPropertyCheck.ts, 127, 23))
return;
}
}
}
function onlyPlus(arg: '+') {
>onlyPlus : Symbol(onlyPlus, Decl(discriminantPropertyCheck.ts, 144, 1))
>arg : Symbol(arg, Decl(discriminantPropertyCheck.ts, 146, 18))
return arg;
>arg : Symbol(arg, Decl(discriminantPropertyCheck.ts, 146, 18))
}
// Repro from #29496
declare function never(value: never): never;
>never : Symbol(never, Decl(discriminantPropertyCheck.ts, 148, 1))
>value : Symbol(value, Decl(discriminantPropertyCheck.ts, 152, 23))
const enum BarEnum {
>BarEnum : Symbol(BarEnum, Decl(discriminantPropertyCheck.ts, 152, 44))
bar1 = 1,
>bar1 : Symbol(BarEnum.bar1, Decl(discriminantPropertyCheck.ts, 154, 20))
bar2 = 2,
>bar2 : Symbol(BarEnum.bar2, Decl(discriminantPropertyCheck.ts, 155, 13))
}
type UnionOfBar = TypeBar1 | TypeBar2;
>UnionOfBar : Symbol(UnionOfBar, Decl(discriminantPropertyCheck.ts, 157, 1))
>TypeBar1 : Symbol(TypeBar1, Decl(discriminantPropertyCheck.ts, 159, 38))
>TypeBar2 : Symbol(TypeBar2, Decl(discriminantPropertyCheck.ts, 160, 39))
type TypeBar1 = { type: BarEnum.bar1 };
>TypeBar1 : Symbol(TypeBar1, Decl(discriminantPropertyCheck.ts, 159, 38))
>type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17))
>BarEnum : Symbol(BarEnum, Decl(discriminantPropertyCheck.ts, 152, 44))
>bar1 : Symbol(BarEnum.bar1, Decl(discriminantPropertyCheck.ts, 154, 20))
type TypeBar2 = { type: BarEnum.bar2 };
>TypeBar2 : Symbol(TypeBar2, Decl(discriminantPropertyCheck.ts, 160, 39))
>type : Symbol(type, Decl(discriminantPropertyCheck.ts, 161, 17))
>BarEnum : Symbol(BarEnum, Decl(discriminantPropertyCheck.ts, 152, 44))
>bar2 : Symbol(BarEnum.bar2, Decl(discriminantPropertyCheck.ts, 155, 13))
function func3(value: Partial<UnionOfBar>) {
>func3 : Symbol(func3, Decl(discriminantPropertyCheck.ts, 161, 39))
>value : Symbol(value, Decl(discriminantPropertyCheck.ts, 163, 15))
>Partial : Symbol(Partial, Decl(lib.es5.d.ts, --, --))
>UnionOfBar : Symbol(UnionOfBar, Decl(discriminantPropertyCheck.ts, 157, 1))
if (value.type !== undefined) {
>value.type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17), Decl(discriminantPropertyCheck.ts, 161, 17))
>value : Symbol(value, Decl(discriminantPropertyCheck.ts, 163, 15))
>type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17), Decl(discriminantPropertyCheck.ts, 161, 17))
>undefined : Symbol(undefined)
switch (value.type) {
>value.type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17), Decl(discriminantPropertyCheck.ts, 161, 17))
>value : Symbol(value, Decl(discriminantPropertyCheck.ts, 163, 15))
>type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17), Decl(discriminantPropertyCheck.ts, 161, 17))
case BarEnum.bar1:
>BarEnum.bar1 : Symbol(BarEnum.bar1, Decl(discriminantPropertyCheck.ts, 154, 20))
>BarEnum : Symbol(BarEnum, Decl(discriminantPropertyCheck.ts, 152, 44))
>bar1 : Symbol(BarEnum.bar1, Decl(discriminantPropertyCheck.ts, 154, 20))
break;
case BarEnum.bar2:
>BarEnum.bar2 : Symbol(BarEnum.bar2, Decl(discriminantPropertyCheck.ts, 155, 13))
>BarEnum : Symbol(BarEnum, Decl(discriminantPropertyCheck.ts, 152, 44))
>bar2 : Symbol(BarEnum.bar2, Decl(discriminantPropertyCheck.ts, 155, 13))
break;
default:
never(value.type);
>never : Symbol(never, Decl(discriminantPropertyCheck.ts, 148, 1))
>value.type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17), Decl(discriminantPropertyCheck.ts, 161, 17))
>value : Symbol(value, Decl(discriminantPropertyCheck.ts, 163, 15))
>type : Symbol(type, Decl(discriminantPropertyCheck.ts, 160, 17), Decl(discriminantPropertyCheck.ts, 161, 17))
}
}
}
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