Tsserver expects `@angular/language-service` to provide a factory function
as the default export (commonjs-style) of the package.
The current implementation side steps TypeScript's import syntax by using
`module.exports = factory`.
This allows the code to incorrectly re-export other symbols:
```ts
export * from './api';
```
which transpiles to:
```js
var tslib_1 = require("tslib");
tslib_1.__exportStar(require("@angular/language-service/api"), exports);
```
Doing this meant that the package now has a runtime dependency on `tslib`,
which is totally unnecessary.
With the proper `export =` syntax, `tslib` is removed, and no other exports
are allowed.
Output:
```js
(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define("@angular/language-service", ["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    return function factory(tsModule) {
        var plugin;
        return {
            create: function (info) {
                var config = info.config;
                var bundleName = config.ivy ? 'ivy.js' : 'language-service.js';
                plugin = require("./bundles/" + bundleName)(tsModule);
                return plugin.create(info);
            },
            getExternalFiles: function (project) {
                var _a, _b;
                return (_b = (_a = plugin === null || plugin === void 0 ? void 0 : plugin.getExternalFiles) === null || _a === void 0 ? void 0 : _a.call(plugin, project)) !== null && _b !== void 0 ? _b : [];
            },
            onConfigurationChanged: function (config) {
                var _a;
                (_a = plugin === null || plugin === void 0 ? void 0 : plugin.onConfigurationChanged) === null || _a === void 0 ? void 0 : _a.call(plugin, config);
            },
        };
    };
});
```
PR Close #41165
		
	
			
		
			
				
	
	
		
			66 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| load("//tools:defaults.bzl", "pkg_npm", "ts_library")
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| 
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| package(default_visibility = ["//visibility:public"])
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| 
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| ts_library(
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|     name = "api",
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|     srcs = [
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|         "api.ts",
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|         "index.ts",
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|     ],
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|     prodmode_module = "commonjs",
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|     deps = [
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|         "@npm//@types/node",
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|         "@npm//typescript",
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|     ],
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| )
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| 
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| ts_library(
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|     name = "language-service",
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|     srcs = glob(
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|         [
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|             "src/**/*.ts",
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|         ],
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|         exclude = [
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|             "src/ts_utils.ts",
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|         ],
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|     ),
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|     deps = [
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|         ":api",
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|         ":ts_utils",
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|         "//packages:types",
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|         "//packages/compiler",
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|         "//packages/compiler-cli",
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|         "//packages/core",
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|         "@npm//@types/node",
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|         "@npm//typescript",
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|     ],
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| )
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| 
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| ts_library(
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|     name = "ts_utils",
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|     srcs = ["src/ts_utils.ts"],
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|     deps = [
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|         "@npm//typescript",
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|     ],
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| )
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| 
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| pkg_npm(
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|     name = "npm_package",
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|     srcs = ["package.json"],
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|     tags = [
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|         "release-with-framework",
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|     ],
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|     # Do not add more to this list.
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|     # Dependencies on the full npm_package cause long re-builds.
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|     visibility = [
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|         "//integration:__pkg__",
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|     ],
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|     deps = [
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|         ":api",
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|         # min bundle is not used at the moment; omit from package to speed up build
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|         "//packages/language-service/bundles:language-service.js",
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|         "//packages/language-service/bundles:ivy.js",
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|     ],
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| )
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