refactor(linter/plugins): add environments definitions

[overlookmotel]

Generate a file defining the vars that each environment (env) provides.

This isn't used for anything yet, but it will be in next PR #17293.

Vars for each environment are stored in this form:

{
  readonly: ["var1", "var2", "var3"],
  writable: ["var4", "var5"],
}

instead of the more obvious:

{
  var1: false,
  var2: false,
  var3: false,
  var4: true,
  var5: true,
}

...because it's shorter code when there's lots of vars (which there usually are), and iterating through arrays I assume is faster than iterating through properties of objects (which are essentially hash maps when they're large).

[overlookmotel]

• test(linter/plugins): add script for investigating failing conformance test cases #17296
• fix(linter/plugins): set up global scope correctly #17293
• refactor(linter/plugins): add environments definitions #17292 👈 (View in Graphite)
• feat(linter/plugins): pass env from Rust to JS #17291
• refactor(linter/plugins): rename var in RuleTester #17290
• main

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[Copilot]

Pull request overview

This PR adds a code generator that creates TypeScript environment definitions for Oxlint JS plugins. The generator reads JavaScript global variable definitions from the javascript-globals crate and outputs them in a structured format with readonly and writable arrays. These definitions are not yet used but will be integrated in a subsequent PR (#17293).

• Adds OxlintEnvsGenerator in Rust to generate environment definitions from the javascript-globals crate
• Generates apps/oxlint/src-js/generated/envs.ts containing environment presets with readonly/writable variable lists
• Updates build infrastructure to include the new generator

Reviewed changes

Copilot reviewed 4 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tasks/ast_tools/src/generators/oxlint_envs.rs	New generator that reads JavaScript globals from the javascript-globals crate and outputs TypeScript environment definitions with variables categorized as readonly or writable
tasks/ast_tools/src/generators/mod.rs	Adds module declaration and public export for OxlintEnvsGenerator with conditional compilation for JS generation
tasks/ast_tools/src/main.rs	Registers OxlintEnvsGenerator in the generators list with the generate-js feature flag
tasks/ast_tools/Cargo.toml	Adds javascript-globals dependency to the ast_tools workspace
apps/oxlint/src-js/generated/envs.ts	Generated TypeScript file containing environment definitions with interface and constants for each environment (e.g., browser, node, ES2015-ES2026, etc.)
Cargo.lock	Updates dependency graph to include javascript-globals for oxc_ast_tools
.github/generated/ast_changes_watch_list.yml	Adds the generated envs.ts file to the watch list for AST change detection

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[camc314]

Merge activity

• Dec 23, 10:48 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 23, 10:53 AM UTC: camc314 added this pull request to the Graphite merge queue.
• Dec 23, 11:00 AM UTC: Merged by the Graphite merge queue.

[codspeed-hq]

CodSpeed Performance Report

Merging #17292 will not alter performance

_{Comparing om/12-22-refactor_linter_plugins_add_environments_definitions (8dce152) with main (ed79fca)¹}

Summary

✅ 29 untouched
⏩ 16 skipped²

Footnotes

1. No successful run was found on om/12-22-feat_linter_plugins_pass_env_from_rust_to_js (1dc371e) during the generation of this report, so main (ed79fca) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

2. 16 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩