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authorbors[bot] <26634292+bors[bot]@users.noreply.github.com>2020-02-02 14:05:23 +0000
committerGitHub <[email protected]>2020-02-02 14:05:23 +0000
commit856e4ba126ae776753f38c00593c02c4f43be510 (patch)
tree94671175f90d50e215b6ead77de44fd8a39d3f8e /crates/ra_syntax/src/ast
parent9006cec4928a28e4b70f536fc740fad5e82319d1 (diff)
parentf08297983faac35e0b0fd475bc935ba0bc0726cb (diff)
Merge #2979
2979: vscode: now we are actually using tslib r=matklad a=Veetaha We had an incorrect setup where `tslib` was in `devDependencies`. FYI: tslib is a runtime dependency, it contains functions that are used by transpiled JavaScript in order not to inline them in each file. For example: ```ts // foo.ts (source code) import * as foo from "foo"; // --------------------------- // foo.js (compiled output) "use strict"; var __importStar = (this && this.__importStar) || function (mod) { if (mod && mod.__esModule) return mod; var result = {}; if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k]; result["default"] = mod; return result; }; Object.defineProperty(exports, "__esModule", { value: true }); const foo = __importStar(require("foo")); ``` As you see, `tsc` generated that `__importStar` helper function in compiled output. And it generates it per each file if you don't enable `"importHelpers": true`. Now with `importHelpers` enabled we get the following picture: ```ts // foo.ts (source code) import * as foo from "foo"; // --------------------------- // foo.js (compiled output) "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); const tslib_1 = require("tslib"); const foo = tslib_1.__importStar(require("foo")); ``` It saves some bundle size, but I am not entirely sure wheter we want that. Discussions are welcome! Co-authored-by: Veetaha <[email protected]>
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