* Hug template literals inside of JSXExpressionContainer
We already hug a bunch of things inside of `{}`. It seems that it's a good idea to do it for template literals as well. I don't think I've seen anyone actually indent them.
Fixes#1090
* Inline jsx elements with single template literal expression
If there is a single expression and a single template literal, then a lot of people in the jsx-style world inline it. I've also myself used this for markdown and printed it that way. So we probably should print it that way.
Note that I'm checking for children.length === 1, this means that if there's any whitespace, this is not going to be true and will not enter this case. So it WON'T reformat
```js
<style>
{`
color: red;
`}
</style>
```
into
```js
<style>{`
color: red;
`}</style>
```
which is great. You have to opt-in to the second style in order to get it.
Fixes#1090
I'm unclear whether anyone was ever confused by this but the eslint page is kind of compelling
```js
// The intent is not clear
var x = a => 1 ? 2 : 3;
// Did the author mean this
var x = function (a) { return 1 ? 2 : 3 };
// Or this
var x = a <= 1 ? 2 : 3;
```
Adding a parenthesis makes it valid with `{"allowParens": true}` rule. Note that if this option is not enabled, the code would not pass lint in the first place.
I've tried a lot of places where to fix this and this is the only one that gives correct results. This is likely not exhaustive but works for that use case. It's been reported twice in issues and I've seen it happen a few other times so we probably want to get it fixed.
Fixes#922Fixes#797
This one sucks.
The range of the `test` of `if (a /* comment */) {}` is only `a` and doesn't include the comment nor parenthesis. This means that we have no way to know if the comment is placed before or after the `)` unless you look at the actual source and strip all the whitespace/comments characters to see if it's a `)`...
This happened on the babel source code twice and many times in the fb codebase. I think we need to fix it unfortunately :(
Fixes#867
We need to call the `skipToLineEnd` which skips `,` after an inline comment. So we have to put it inside of the while loop as you can have many comments, a comma and then many more comments.
Fixes#964
.#1136 accidentally removed all the empty lines between statements inside of switch cases. I just brough back the logic and made sure to only use it for everything but the last line.
* Add exceptions for html escape usage in href and src attributes.
* Add new test cases.
* Remove useless spaces.
* Do not escape if the parser does not do so.
* Implement a different heuristic for keeping along with the parser.
* Update tests.
* Forgot passing options as param.
* Experimental alternative implementation.
* Remove other function.
* Push test after merge.
* Update getJsXRawValue in order to return the unprocessed raw value.
Latest Babylon version includes a fix that allow us to directly
inject the unprocessed raw value available in the `extra.rawValue`
property of the node. A last transformation is applied by replacing
double quotes to `"` entities.
* Drop unused htmlEscapeInsideDoubleQuote function.
* Move getJSXRawValue function logic to the its only call, drop it.
A simple check is performed to determine if the parser is babylon or
flow via `n.value.extra`. Thus, the corresponding raw value is
extracted. If we are converting a string from single quotes to
double quotes, we need to make sure that double quotes are converted
to ".
* Remove ambiguous comment.
* Add Babylon parser.
* Update test cases accordingly, revert regression introduced previously.
* Extract custom tests from tests/flow/
Approach:
1. Remove all .js files in tests/flow except .snap.js files.
2. Copy over all .js files from tests/ in the flow repo.
3. Go through the diff looking for deletions.
- It was easy to see which deletions were due to changes in the tests
due to updates in the flow repo.
- For the rest of the deletions, I used `git blame` to verify that
they had been added by us since the flow tests were copied over.
This makes tests/flow/ simply a copy of the tests from the flow repo,
making it easier to sync with the upstream flow tests in the future.
* Add a script for syncing the flow tests
* Sync the flow tests
We break on `class` before `extends` but didn't for `interface`. Now we do in the same way. Also TIL that `interface` was an actual keyword in JavaScript :P
* Add check method to Prettier. Make CLI use that method for list-different
* Catch in check and return false if it throws
* Remove catch/finally from Prettier list-different bin
* remove try catch in prettier bin for list-different