mirror of https://github.com/status-im/metro.git
🚇 The JavaScript bundler for React Native.
https://facebook.github.io/metro
bb93e339fa
Summary: Depends on #124. --- **Summary** Metro reports errors using a JSON payload that has an `errors` array. Each item in this array has a `description` field. For transform errors, this field was set using the value in `error.description` -- however, JS Error objects only have a `message` field. (Grepping the Metro code, no errors (except in one test) ever get a `description` field.) This commit uses `error.message` instead of `error.description` when creating JSON payloads. ``` $ git grep description -- 'packages/**/*.js' packages/metro/src/JSTransformer/__tests__/Transformer-test.js: babelError.description = message; packages/metro/src/lib/formatBundlingError.js: description: string, packages/metro/src/lib/formatBundlingError.js:): {type: string, message: string, errors: Array<{description: string}>} { packages/metro/src/lib/formatBundlingError.js: errors: [{description: message}], packages/metro/src/lib/formatBundlingError.js: description: error.message, packages/metro/src/node-haste/__tests__/Module-test.js: description: "A require('foo') story", ``` **Test Plan** Added a unit test to check that the description field is set for transform errors (with the delta bundler). Also in a test RN app, inspected the error payload that is received by RN when there's a syntax error with HMR turned on and verified that `data.body.errors[0].description` was set. Closes https://github.com/facebook/metro/pull/125 Differential Revision: D6730671 Pulled By: rafeca fbshipit-source-id: 58311462db9223d65580d77748203d8ea0ea1ac7 |
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README.md
Metro
🚇 The JavaScript bundler for React Native.
- 🚅 Fast: We aim for sub-second reload cycles, fast startup and quick bundling speeds.
- ⚖️ Scalable: Works with thousands of modules in a single application.
- ⚛️ Integrated: Supports every React Native project out of the box.
This project was previously part of the react-native repository. In this smaller repository it is easier for the team working on Metro Bundler to respond to both issues and pull requests. See react-native#13976 for the initial announcement.
Installation & Documentation
See the Metro website for documentation.