66be4aa5e3
This PR fixes a bug in support of JSX pragma in Typescript (introduced in https://github.com/babel/babel/pull/9095). We've noticed this bug while building a large codebase with webpack+babel+typescript. Some files from our projects are using `/** @jsx h*/` to use a custom function for JSX syntax; and some others are using the React syntax. We've noticed that our react imports were being removed by babel because the plugin instance was being reused by `babel-loader` and webpack; and it was causing an error : ``` ReferenceError: React is not defined ``` This PR resets the `jsxPragma` being used to the initial value for each new file being processed. I can't add a unit test for this bug because it requires processing 2 files (one with `/** @jsx something */` then one with the react syntax). I've tested a build of this PR and it correctly fixes the issue for us.
The compiler for writing next generation JavaScript.
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Babel is a tool that helps you write code in the latest version of JavaScript. When your supported environments don't support certain features natively, Babel will help you compile those features down to a supported version.
In
// ES2015 arrow function
[1, 2, 3].map((n) => n + 1);
Out
[1, 2, 3].map(function(n) {
return n + 1;
});
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