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Merge pull request #7 from Himenon/dev
updated(code): memorizeとbabel-standaloneのコードを追加
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| --install.ignore-engines true |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| import * as React from 'react'; | ||
| import * as renderer from 'react-test-renderer'; | ||
| import * as OneShot from "../oneshot"; | ||
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| test("parse", () => { | ||
| const codeString = OneShot.parse(` | ||
| function hello() { | ||
| return "Hello World"; | ||
| } | ||
| `); | ||
| expect(codeString).not.toBeNull(); | ||
| const hello = new Function(`return ${codeString}`)(); | ||
| expect(hello()).toEqual("Hello World"); | ||
| }) | ||
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| test("parse string that contain JSX", () => { | ||
| const codeString = OneShot.parseWithJSX(`<div>Hello World</div>`); | ||
| expect(codeString).toEqual('React.createElement("div", null, "Hello World");'); | ||
| const componentCreator = new Function('React', `return ${codeString}`); | ||
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| const component = componentCreator(React); | ||
| const testComponent = renderer.create(component); | ||
| const expectComponent = renderer.create(<div>Hello World</div>); | ||
| expect(testComponent.toJSON()).toEqual(expectComponent.toJSON()); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| // @ts-ignore | ||
| import * as standalone from "@babel/standalone"; | ||
| // @ts-ignore | ||
| import * as transformJSX from '@babel/plugin-transform-react-jsx' | ||
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| export const parse = (raw: string): string | null => { | ||
| return standalone.transform(raw, {}).code; | ||
| } | ||
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| export const parseWithJSX = (raw: string): string | null => { | ||
| return standalone.transform(raw, { | ||
| plugins: [transformJSX], | ||
| }).code; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| import { memorize } from "../memorize"; | ||
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| test("memorize", () => { | ||
| function add(a: number, b: number) { | ||
| return a + b; | ||
| } | ||
| const customAdd = memorize(add); | ||
| expect(customAdd(1, 2)).toEqual(3); | ||
| expect(customAdd(1, 2)).toEqual(3); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| export function memorize<T extends Function>(f: T): any { | ||
| const cache: { [key: string]: T } = {} | ||
| return function fn() { | ||
| const key = arguments.length + Array.prototype.join.call(arguments, ","); | ||
| if (key in cache) { | ||
| return cache[key] | ||
| } else { | ||
| // @ts-ignore | ||
| return cache[key] = f.apply(this, arguments) | ||
| }; | ||
| } | ||
| } |
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