* Permit %%placeholder%% in left-hand-side of a let declaration
* Test that "let" followed by modulo is still treated as an identifier
* More tests for edge-case handling of "let" with placeholders enabled
* chore: use yarn 2
* chore: remove redundant yarn locks
* chore: remove publishEslintPkg
* chore: remove redundant make bootstrap
* Update .yarnrc.yml
Co-authored-by: Kristoffer K. <merceyz@users.noreply.github.com>
* chore: use workspace protocol for eslint packages in the root
Co-Authored-By: merceyz <merceyz@users.noreply.github.com>
* chore: pin caniuse-lite versions
Testcases in packages/babel-preset-env/test/fixtures/debug/browserslists-defaults-not-ie
depends on specific caniuse-lite versions. We pinned the version here
so we don't have to deal with fixture different in e2e-tests
where all deps will be updated and tested.
* chore: resolve yarn install warnings
* chore: update yarn cache path on circle/travis
* chore: add yarn deduplicate plugin
* chore: deduplicate lock files
* chore: move devDependencies to leaf packages
* chore: remove @yarnpkg/plugin-constraints
* chore: remove unused dedupe options
* test: fix unwanted self reference
* chore: remove output-file-sync dependency
* chore: update browserify to 16.5.2
Co-authored-by: Kristoffer K. <merceyz@users.noreply.github.com>
* Allow templates to parse v8intrinsics
The `v8intrinsic` and `placeholders` parser plugins conflict, so enabling `placeholders` unconditionally was causing errors for V8's internal codemods. This allows them to set `syntacticPlaceholders = false` (so they'll use the legacy identifier format) and enable `v8intrinsic` by itself.
* Fix linter
* Linter
This is the last step to make https://github.com/babel/babel/pull/9364 usable in Babel. I'm sorry for opening this PR so late, but I hope to get it in v7.4.
In this PR I added a new option to `@babel/template`, `syntacticPlaceholders: ?boolean`, which toggles between `%%foo%%` placeholders (when `true`) and `FOO` placeholders. If it isn't specified, Babel tries to be "smart" to avoid breaking backward compat: if `%%foo%%` is used `syntacticPlaceholders` defaults to `true`, otherwise to `false`.
0e58e252913efe84eba926cc9c9c19fb18d5c620 commit shows how some templates we used could be simplified by using this new placeholders syntax (we can't actually do it yet because we are importing `template` from `@babel/core` which could be an older version).
NOTE: Since I wanted to keep this PR as small as possible to make it easier to review, I didn't migrate `template.ast` to internally use the new syntax. It is an implementation detail, so it will be possible to change it in a patch release.
* Fix running flow on travis and update flow
- ensure bootstrap is run before running flow as we need some generated files for correctly doing typechecks
- ensure that we only ignore the build directory inside the babel folder as currently we ignore everything because travis checks out into ‘/home/travis/build/’
* Fix all flow errors
