deno/cli/tsc
Matt Mastracci bb1f5e4262
perf(core): async op pseudo-codegen and performance work (#18887)
Performance:

```
async_ops.js: 760k -> 1030k (!)
async_ops_deferred.js: 730k -> 770k
Deno.serve bench: 118k -> 124k
WS test w/ third_party/prebuilt/mac/load_test 100 localhost 8000 0 0: unchanged

Startup time: approx 0.5ms slower (13.7 -> 14.2ms)
```
2023-04-30 08:50:24 +00:00
..
dts feat(kv): return ok bool from atomic commit (#18873) 2023-04-27 16:59:02 +02:00
00_typescript.js fix: upgrade to TypeScript 5.0.3 (#18532) 2023-03-31 17:09:04 +00:00
99_main_compiler.js perf(check): faster source hashing (#18534) 2023-04-01 10:12:40 -04:00
compiler.d.ts perf(core): async op pseudo-codegen and performance work (#18887) 2023-04-30 08:50:24 +00:00
diagnostics.rs refactor(cli,ext,ops): cleanup regex with lazy-regex (#17296) 2023-04-13 03:08:01 +02:00
mod.rs refactor(ext/node): enforce interior mutable for NodePermissions to remove clones (#18831) 2023-04-24 21:07:48 -04:00
README.md feat: upgrade to TypeScript 4.9.3 (#16973) 2022-12-07 12:59:59 -05:00

tsc

This directory contains the typescript compiler and a small compiler host for the runtime snapshot.

How to upgrade TypeScript.

The files in this directory are mostly from the TypeScript repository. We currently (unfortunately) have a rather manual process for upgrading TypeScript. It works like this currently:

  1. Checkout denoland/TypeScript repo in a separate directory.
  2. Add Microsoft/TypeScript as a remote and fetch its latest tags
  3. Checkout a new branch based on this tag.
  4. Cherry pick the custom commit we made in a previous release to the new one.
  5. This commit has a "deno.ts" file in it. Read the instructions in it.
  6. Copy typescript.js into Deno repo.
  7. Copy d.ts files into dts directory.
  8. Review the copied files, removing and reverting what's necessary

So that might look something like this:

git clone https://github.com/denoland/TypeScript.git
cd typescript
git remote add upstream https://github.com/Microsoft/TypeScript
git fetch upstream
git checkout v3.9.7
git checkout -b branch_v3.9.7
git cherry pick <previous-release-branch-commit-we-did>
npm install
gulp local
rsync built/local/typescript.js ~/src/deno/cli/tsc/00_typescript.js
rsync --exclude=protocol.d.ts --exclude=tsserverlibrary.d.ts --exclude=typescriptServices.d.ts built/local/*.d.ts ~/src/deno/cli/tsc/dts/