Add regression test

This commit is contained in:
Anders Hejlsberg 2017-03-03 14:33:07 -08:00
parent 6995055c86
commit c2431ade0c
4 changed files with 145 additions and 0 deletions

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@ -0,0 +1,44 @@
//// [circularInferredTypeOfVariable.ts]
// Repro from #14428
(async () => {
function foo(p: string[]): string[] {
return [];
}
function bar(p: string[]): string[] {
return [];
}
let a1: string[] | undefined = [];
while (true) {
let a2 = foo(a1!);
a1 = await bar(a2);
}
});
//// [circularInferredTypeOfVariable.js]
// Repro from #14428
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
(() => __awaiter(this, void 0, void 0, function* () {
function foo(p) {
return [];
}
function bar(p) {
return [];
}
let a1 = [];
while (true) {
let a2 = foo(a1);
a1 = yield bar(a2);
}
}));

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=== tests/cases/compiler/circularInferredTypeOfVariable.ts ===
// Repro from #14428
(async () => {
function foo(p: string[]): string[] {
>foo : Symbol(foo, Decl(circularInferredTypeOfVariable.ts, 3, 14))
>p : Symbol(p, Decl(circularInferredTypeOfVariable.ts, 4, 17))
return [];
}
function bar(p: string[]): string[] {
>bar : Symbol(bar, Decl(circularInferredTypeOfVariable.ts, 6, 5))
>p : Symbol(p, Decl(circularInferredTypeOfVariable.ts, 8, 17))
return [];
}
let a1: string[] | undefined = [];
>a1 : Symbol(a1, Decl(circularInferredTypeOfVariable.ts, 12, 7))
while (true) {
let a2 = foo(a1!);
>a2 : Symbol(a2, Decl(circularInferredTypeOfVariable.ts, 15, 11))
>foo : Symbol(foo, Decl(circularInferredTypeOfVariable.ts, 3, 14))
>a1 : Symbol(a1, Decl(circularInferredTypeOfVariable.ts, 12, 7))
a1 = await bar(a2);
>a1 : Symbol(a1, Decl(circularInferredTypeOfVariable.ts, 12, 7))
>bar : Symbol(bar, Decl(circularInferredTypeOfVariable.ts, 6, 5))
>a2 : Symbol(a2, Decl(circularInferredTypeOfVariable.ts, 15, 11))
}
});

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=== tests/cases/compiler/circularInferredTypeOfVariable.ts ===
// Repro from #14428
(async () => {
>(async () => { function foo(p: string[]): string[] { return []; } function bar(p: string[]): string[] { return []; } let a1: string[] | undefined = []; while (true) { let a2 = foo(a1!); a1 = await bar(a2); }}) : () => Promise<never>
>async () => { function foo(p: string[]): string[] { return []; } function bar(p: string[]): string[] { return []; } let a1: string[] | undefined = []; while (true) { let a2 = foo(a1!); a1 = await bar(a2); }} : () => Promise<never>
function foo(p: string[]): string[] {
>foo : (p: string[]) => string[]
>p : string[]
return [];
>[] : undefined[]
}
function bar(p: string[]): string[] {
>bar : (p: string[]) => string[]
>p : string[]
return [];
>[] : undefined[]
}
let a1: string[] | undefined = [];
>a1 : string[]
>[] : undefined[]
while (true) {
>true : true
let a2 = foo(a1!);
>a2 : string[]
>foo(a1!) : string[]
>foo : (p: string[]) => string[]
>a1! : string[]
>a1 : string[]
a1 = await bar(a2);
>a1 = await bar(a2) : string[]
>a1 : string[]
>await bar(a2) : string[]
>bar(a2) : string[]
>bar : (p: string[]) => string[]
>a2 : string[]
}
});

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// @target: es6
// Repro from #14428
(async () => {
function foo(p: string[]): string[] {
return [];
}
function bar(p: string[]): string[] {
return [];
}
let a1: string[] | undefined = [];
while (true) {
let a2 = foo(a1!);
a1 = await bar(a2);
}
});