361 lines
10 KiB
Plaintext
361 lines
10 KiB
Plaintext
// Jest Snapshot v1, https://goo.gl/fbAQLP
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exports[`annot.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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function foo(str:string, i:number):string {
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return str;
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}
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var bar: (str:number, i:number)=> string = foo;
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var qux = function(str:string, i:number):number { return foo(str,i); }
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var obj: {str:string; i:number; j:boolean} = {str: "...", i: "...", k: false};
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var arr: Array<number> = [1,2,"..."];
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// array sugar
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var array: number[] = [1,2,"..."];
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var matrix: number[][] = [[1,2],[3,4]];
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var matrix_parens: (number[])[] = matrix;
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var nullable_array: ?number[] = null;
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var nullable_array_parens: ?(number[]) = nullable_array;
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var array_of_nullable: (?number)[] = [null, 3];
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var array_of_tuple: [number, string][] = [[0, "foo"], [1, "bar"]];
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var array_of_tuple_parens: ([number, string])[] = array_of_tuple;
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type ObjType = { 'bar-foo': string; 'foo-bar': number; };
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var test_obj: ObjType = { 'bar-foo': '23' };
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// param type annos are strict UBs like var type annos
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function param_anno(n:number):void {
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n = "hey"; // error
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}
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// another error on param UB, more typical of www (mis)use-cases
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// this one cribbed from API.atlas.js
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function param_anno2(
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batchRequests: Array<{method: string; path: string; params: ?Object}>,
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): void {
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// error below, since we're assigning elements to batchRequests
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// which lack a path property.
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// just assign result to new var instead of reassigning to param.
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// Transform the requests to the format the Graph API expects.
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batchRequests = batchRequests.map((request) => {
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return {
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method: request.method,
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params: request.params,
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relative_url: request.path,
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};
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});
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// ...
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}
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var toz : null = 3;
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var zer : null = null;
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function foobar(n : ?number) : number | null | void { return n; }
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function barfoo(n : number | null | void) : ?number { return n; }
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=====================================output=====================================
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function foo(str: string, i: number): string {
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return str;
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}
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var bar: (str: number, i: number) => string = foo;
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var qux = function(str: string, i: number): number {
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return foo(str, i);
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};
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var obj: { str: string, i: number, j: boolean } = {
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str: "...",
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i: "...",
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k: false
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};
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var arr: Array<number> = [1, 2, "..."];
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// array sugar
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var array: number[] = [1, 2, "..."];
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var matrix: number[][] = [
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[1, 2],
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[3, 4]
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];
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var matrix_parens: number[][] = matrix;
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var nullable_array: ?(number[]) = null;
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var nullable_array_parens: ?(number[]) = nullable_array;
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var array_of_nullable: (?number)[] = [null, 3];
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var array_of_tuple: [number, string][] = [
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[0, "foo"],
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[1, "bar"]
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];
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var array_of_tuple_parens: [number, string][] = array_of_tuple;
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type ObjType = { "bar-foo": string, "foo-bar": number };
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var test_obj: ObjType = { "bar-foo": "23" };
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// param type annos are strict UBs like var type annos
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function param_anno(n: number): void {
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n = "hey"; // error
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}
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// another error on param UB, more typical of www (mis)use-cases
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// this one cribbed from API.atlas.js
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function param_anno2(
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batchRequests: Array<{ method: string, path: string, params: ?Object }>
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): void {
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// error below, since we're assigning elements to batchRequests
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// which lack a path property.
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// just assign result to new var instead of reassigning to param.
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// Transform the requests to the format the Graph API expects.
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batchRequests = batchRequests.map(request => {
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return {
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method: request.method,
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params: request.params,
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relative_url: request.path
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};
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});
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// ...
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}
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var toz: null = 3;
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var zer: null = null;
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function foobar(n: ?number): number | null | void {
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return n;
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}
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function barfoo(n: number | null | void): ?number {
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return n;
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}
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================================================================================
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`;
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exports[`forward_ref.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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let myClassInstance: MyClass = null; // forward ref ok, null ~> class error
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function bar(): MyClass {
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return null; // forward ref ok, null ~> class error
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}
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class MyClass { } // looked up above
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function foo() {
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let myClassInstance: MyClass = mk(); // ok (no confusion across scopes)
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function mk() { return new MyClass(); }
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class MyClass { } // looked up above
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}
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=====================================output=====================================
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let myClassInstance: MyClass = null; // forward ref ok, null ~> class error
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function bar(): MyClass {
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return null; // forward ref ok, null ~> class error
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}
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class MyClass {} // looked up above
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function foo() {
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let myClassInstance: MyClass = mk(); // ok (no confusion across scopes)
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function mk() {
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return new MyClass();
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}
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class MyClass {} // looked up above
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}
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================================================================================
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`;
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exports[`issue-530.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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function foo(...args: any) { }
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module.exports = foo;
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=====================================output=====================================
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function foo(...args: any) {}
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module.exports = foo;
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================================================================================
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`;
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exports[`leak.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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/** @flow */
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/* This test documents an example we ran into of a type annotation leaking.
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*
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* When foo() calls bar(), we should make sure the type of x matches the type
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* annotation for y and stop. We should type the body of bar() with the type
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* annotation of y.
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*
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* However, the leaky type annotation meant that we were flowing x's type to y
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* and type checking the body of bar() using the stricter dictionary type,
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* leading to an error.
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*/
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type MyObj = Object;
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function foo(x: {[key: string]: mixed}) {
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bar(x);
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}
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function bar(y: MyObj): string {
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return y.foo;
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}
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=====================================output=====================================
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/** @flow */
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/* This test documents an example we ran into of a type annotation leaking.
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*
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* When foo() calls bar(), we should make sure the type of x matches the type
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* annotation for y and stop. We should type the body of bar() with the type
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* annotation of y.
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*
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* However, the leaky type annotation meant that we were flowing x's type to y
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* and type checking the body of bar() using the stricter dictionary type,
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* leading to an error.
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*/
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type MyObj = Object;
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function foo(x: { [key: string]: mixed }) {
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bar(x);
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}
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function bar(y: MyObj): string {
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return y.foo;
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}
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================================================================================
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`;
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exports[`other.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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class C { }
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module.exports = (C: any);
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=====================================output=====================================
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class C {}
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module.exports = (C: any);
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================================================================================
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`;
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exports[`scope.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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type Merge<T> = (a: T, b: T) => T;
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// hypothetical immutable map
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declare class Map<K,V> {
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(): Map<K,V>;
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insertWith(fn: Merge<V>, k: K, v: V): Map<K,V>;
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}
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declare function foldr<A,B>(fn: (a: A, b: B) => B, b: B, as: A[]): B;
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function insertMany<K,V>(merge: Merge<V>, vs: [K,V][], m: Map<K,V>): Map<K,V> {
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function f([k,v]: [K,V], m: Map<K,V>): Map<K,V> {
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return m.insertWith(merge, k, v)
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}
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return foldr(f, m, vs)
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}
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class Foo<A> {
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bar<B>() {
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return function<C>(a: A, b: B, c: C): void {
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([a,b,c] : [A,B,C]);
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}
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}
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}
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=====================================output=====================================
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type Merge<T> = (a: T, b: T) => T;
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// hypothetical immutable map
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declare class Map<K, V> {
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(): Map<K, V>;
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insertWith(fn: Merge<V>, k: K, v: V): Map<K, V>;
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}
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declare function foldr<A, B>(fn: (a: A, b: B) => B, b: B, as: A[]): B;
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function insertMany<K, V>(
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merge: Merge<V>,
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vs: [K, V][],
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m: Map<K, V>
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): Map<K, V> {
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function f([k, v]: [K, V], m: Map<K, V>): Map<K, V> {
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return m.insertWith(merge, k, v);
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}
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return foldr(f, m, vs);
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}
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class Foo<A> {
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bar<B>() {
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return function<C>(a: A, b: B, c: C): void {
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([a, b, c]: [A, B, C]);
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};
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}
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}
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================================================================================
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`;
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exports[`test.js 1`] = `
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====================================options=====================================
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parsers: ["flow"]
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printWidth: 80
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| printWidth
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=====================================input======================================
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var C = require('./other');
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((0: C): string);
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=====================================output=====================================
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var C = require("./other");
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((0: C): string);
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================================================================================
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`;
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