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Expand auto-import to all package.json dependencies (#38923)
* Start experiment

* Add logging

* Go back to a single program

* Fix forEachExternalModuleToImportFrom

* Move auxiliary program to language service

* Add logging

* Don’t use resolution cache

* Fix(?) containingProjects for ScriptInfo in auxiliary program

* Fix ScriptInfo project inclusion

* Add test for default project of auto-importable ScriptInfo

* Add fourslash server test

* Don’t create auto import provider inside node_modules

* Add monorepo-like test

* WIP

* Naively ensure autoImportProvider is up to date after package.json change

* Start limiting when auto update provider gets updated

* Respond to changes in node_modules

* Don’t create auto-import provider until a file is open that would use it

e.g., don’t create them during cross-project find-all-refs

* Clean up naming, @internal marking, and fix empty project creation bug

* Drop devDependencies, include peerDependencies

* Add additional compiler options

* Fix interaction with importSuggestionsCache

* Move option to UserPreferences, allow inclusion of devDependencies

* Don’t filter out peerDependencies

* Watch unparseable package.jsons

* But don’t filter packages out due to an invalid package.json

* Update test

* Don’t use autoImportProvider in codefixes where it can never be used (or any refactors)

* Add CompletionEntry property for telemetry

* Add assertion for isPackageJsonImport to fourslash

* Fix missing pushSymbol argument

* Add isPackageJsonImport to tests and API baselines

* Fix unit test

* Host auto import provider in new Project kind

* Fix InferredProject attaching on AutoImportProvider-included files, load eagerly

* Update Public APIs

* Simplify PackageJsonCache host

* Remove unneeded markAsDirty

* Defer project finished event until after AutoImportProvider is created

* Make AutoImportProviderProject always report isOrphan = true

* Close and remove AutoImportProviderProject when host project closes

* Don’t set pendingEnsureProjectForOpenFiles

* Use hasAddedOrRemovedFiles instead of hasNewProgram

* Use host-wide watchOptions for package.json watching

* Add to `printProjects`

* Clean up

* Get autoImportProvider directly from LanguageServiceHost

* Clean up

* Clean up

* Close auto import provider on disableLanguageService

* Move AutoImportProvider preload to project updateGraph

* Clear auto import suggestion cache when provider program changes

* Fix tests

* Revert yet-unneeded change

* Use projectService host for module resolution host

* Don’t re-resolve type directives if nothing has changed

* Update src/server/project.ts

Co-authored-by: Sheetal Nandi <shkamat@microsoft.com>

* Use ts.emptyArray

Co-authored-by: Sheetal Nandi <shkamat@microsoft.com>
2020-06-22 16:34:27 -07:00
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TypeScript

Build Status Devops Build Status npm version Downloads

TypeScript is a language for application-scale JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript. Try it out at the playground, and stay up to date via our blog and Twitter account.

Find others who are using TypeScript at our community page.

Installing

For the latest stable version:

npm install -g typescript

For our nightly builds:

npm install -g typescript@next

Contribute

There are many ways to contribute to TypeScript.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

Documentation

Building

In order to build the TypeScript compiler, ensure that you have Git and Node.js installed.

Clone a copy of the repo:

git clone https://github.com/microsoft/TypeScript.git

Change to the TypeScript directory:

cd TypeScript

Install Gulp tools and dev dependencies:

npm install -g gulp
npm install

Use one of the following to build and test:

gulp local             # Build the compiler into built/local.
gulp clean             # Delete the built compiler.
gulp LKG               # Replace the last known good with the built one.
                       # Bootstrapping step to be executed when the built compiler reaches a stable state.
gulp tests             # Build the test infrastructure using the built compiler.
gulp runtests          # Run tests using the built compiler and test infrastructure.
                       # Some low-value tests are skipped when not on a CI machine - you can use the
                       # --skipPercent=0 command to override this behavior and run all tests locally.
                       # You can override the specific suite runner used or specify a test for this command.
                       # Use --tests=<testPath> for a specific test and/or --runner=<runnerName> for a specific suite.
                       # Valid runners include conformance, compiler, fourslash, project, user, and docker
                       # The user and docker runners are extended test suite runners - the user runner
                       # works on disk in the tests/cases/user directory, while the docker runner works in containers.
                       # You'll need to have the docker executable in your system path for the docker runner to work.
gulp runtests-parallel # Like runtests, but split across multiple threads. Uses a number of threads equal to the system
                       # core count by default. Use --workers=<number> to adjust this.
gulp baseline-accept   # This replaces the baseline test results with the results obtained from gulp runtests.
gulp lint              # Runs eslint on the TypeScript source.
gulp help              # List the above commands.

Usage

node built/local/tsc.js hello.ts

Roadmap

For details on our planned features and future direction please refer to our roadmap.