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This makes it so imports of ambient modules (e.g. `$app/environment` in svelte, any virtual module in vite, or other module provided by a bundler) don't error in the LSP. The way this works is that when we request diagnostics from TSC, we also respond with the list of ambient modules. Then, in the diagnostics code, we save diagnostics (produced by deno) that may be invalidated as an ambient module and wait to publish the diagnostics until we've received the ambient modules from TSC. The actual ambient modules you get from TSC can contain globs, e.g. `*.css`. So when we get new ambient modules, we compile them all into a regex and check erroring imports against that regex. Ambient modules should change rarely, so in most cases we should be using a pre-compiled regex, which executes in linear time (wrt the specifier length). TODO: - Ideally we should only publish once, right now we publish with the filtered specifiers and then the TSC ones - deno check (#27633) |
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| .. | ||
| dts | ||
| 00_typescript.js | ||
| 97_ts_host.js | ||
| 98_lsp.js | ||
| 99_main_compiler.js | ||
| _analyze_types_node.ts | ||
| compiler.d.ts | ||
| diagnostics.rs | ||
| mod.rs | ||
| README.md | ||
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:
- Checkout denoland/TypeScript repo in a separate directory.
- Add Microsoft/TypeScript as a remote and fetch its latest tags
- Checkout a new branch based on this tag.
- Cherry pick the custom commit we made in a previous release to the new one.
- This commit has a "deno.ts" file in it. Read the instructions in it.
- Copy typescript.js into Deno repo.
- Copy d.ts files into dts directory.
- 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
npx hereby
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/