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Add regression test

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This commit is contained in:
Anders Hejlsberg
2021-02-24 09:52:18 -08:00
parent 361e19bbe8
commit 615050437b
4 changed files with 119 additions and 0 deletions
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tests/baselines/reference/unionOfEnumInference.js
+29
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//// [unionOfEnumInference.ts]
// Repro from #42932
enum Enum { A, B, C }
interface Interface<T extends Enum> {
type: T;
}
function foo<T extends Enum>(x: Interface<T>) { }
function bar(x: Interface<Enum.A | Enum.B> | Interface<Enum.C>) {
foo(x);
}
//// [unionOfEnumInference.js]
"use strict";
// Repro from #42932
var Enum;
(function (Enum) {
Enum[Enum["A"] = 0] = "A";
Enum[Enum["B"] = 1] = "B";
Enum[Enum["C"] = 2] = "C";
})(Enum || (Enum = {}));
function foo(x) { }
function bar(x) {
foo(x);
}
tests/baselines/reference/unionOfEnumInference.symbols
+44
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=== tests/cases/compiler/unionOfEnumInference.ts ===
// Repro from #42932
enum Enum { A, B, C }
>Enum : Symbol(Enum, Decl(unionOfEnumInference.ts, 0, 0))
>A : Symbol(Enum.A, Decl(unionOfEnumInference.ts, 2, 11))
>B : Symbol(Enum.B, Decl(unionOfEnumInference.ts, 2, 14))
>C : Symbol(Enum.C, Decl(unionOfEnumInference.ts, 2, 17))
interface Interface<T extends Enum> {
>Interface : Symbol(Interface, Decl(unionOfEnumInference.ts, 2, 21))
>T : Symbol(T, Decl(unionOfEnumInference.ts, 4, 20))
>Enum : Symbol(Enum, Decl(unionOfEnumInference.ts, 0, 0))
type: T;
>type : Symbol(Interface.type, Decl(unionOfEnumInference.ts, 4, 37))
>T : Symbol(T, Decl(unionOfEnumInference.ts, 4, 20))
}
function foo<T extends Enum>(x: Interface<T>) { }
>foo : Symbol(foo, Decl(unionOfEnumInference.ts, 6, 1))
>T : Symbol(T, Decl(unionOfEnumInference.ts, 8, 13))
>Enum : Symbol(Enum, Decl(unionOfEnumInference.ts, 0, 0))
>x : Symbol(x, Decl(unionOfEnumInference.ts, 8, 29))
>Interface : Symbol(Interface, Decl(unionOfEnumInference.ts, 2, 21))
>T : Symbol(T, Decl(unionOfEnumInference.ts, 8, 13))
function bar(x: Interface<Enum.A | Enum.B> | Interface<Enum.C>) {
>bar : Symbol(bar, Decl(unionOfEnumInference.ts, 8, 49))
>x : Symbol(x, Decl(unionOfEnumInference.ts, 10, 13))
>Interface : Symbol(Interface, Decl(unionOfEnumInference.ts, 2, 21))
>Enum : Symbol(Enum, Decl(unionOfEnumInference.ts, 0, 0))
>A : Symbol(Enum.A, Decl(unionOfEnumInference.ts, 2, 11))
>Enum : Symbol(Enum, Decl(unionOfEnumInference.ts, 0, 0))
>B : Symbol(Enum.B, Decl(unionOfEnumInference.ts, 2, 14))
>Interface : Symbol(Interface, Decl(unionOfEnumInference.ts, 2, 21))
>Enum : Symbol(Enum, Decl(unionOfEnumInference.ts, 0, 0))
>C : Symbol(Enum.C, Decl(unionOfEnumInference.ts, 2, 17))
foo(x);
>foo : Symbol(foo, Decl(unionOfEnumInference.ts, 6, 1))
>x : Symbol(x, Decl(unionOfEnumInference.ts, 10, 13))
}
tests/baselines/reference/unionOfEnumInference.types
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=== tests/cases/compiler/unionOfEnumInference.ts ===
// Repro from #42932
enum Enum { A, B, C }
>Enum : Enum
>A : Enum.A
>B : Enum.B
>C : Enum.C
interface Interface<T extends Enum> {
type: T;
>type : T
}
function foo<T extends Enum>(x: Interface<T>) { }
>foo : <T extends Enum>(x: Interface<T>) => void
>x : Interface<T>
function bar(x: Interface<Enum.A | Enum.B> | Interface<Enum.C>) {
>bar : (x: Interface<Enum.A | Enum.B> | Interface<Enum.C>) => void
>x : Interface<Enum.A | Enum.B> | Interface<Enum.C>
>Enum : any
>Enum : any
>Enum : any
foo(x);
>foo(x) : void
>foo : <T extends Enum>(x: Interface<T>) => void
>x : Interface<Enum.A | Enum.B> | Interface<Enum.C>
}
tests/cases/compiler/unionOfEnumInference.ts
+15
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// @strict: true
// Repro from #42932
enum Enum { A, B, C }
interface Interface<T extends Enum> {
type: T;
}
function foo<T extends Enum>(x: Interface<T>) { }
function bar(x: Interface<Enum.A | Enum.B> | Interface<Enum.C>) {
foo(x);
}