Reduce use of Java exceptions in prop parsing#36160
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Summary: Pull Request resolved: facebook#36160 Changelog: [Android][Fixed] - Invalid prop values no longer trigger Java exceptions in the legacy renderer ## Context We are changing React Native to behave more like a browser in the sense that **bad style values are not runtime errors**. (See e.g. D43159284 (facebook@d6e9891), D43184380.) The recommended way for developers to ensure they are passing correct style values is to use a typechecker (TypeScript or Flow) in conjunction with E2E tests and manual spot checks. ## This diff This change is similar to D43184380, but here we target the legacy renderer on Android by (1) replacing exceptions with logging calls, (2) adding fallback values (equivalent to resetting the respective props to `null`) where needed, and (3) replacing `null` checks in `ReactProp` converters with `instanceof` checks. Leaving the logging call sites in place (as opposed to deleting them) will be helpful if we decide that we want to repurpose these checks for a new, more visible diagnostic (though we would likely only build such a diagnostic in Fabric at this point). Reviewed By: javache Differential Revision: D43274525 fbshipit-source-id: 06ce18ecaaa29eade09d93480e824418f916c971
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Summary:
Changelog:
[Android][Fixed] - Invalid prop values no longer trigger Java exceptions in the legacy renderer
Context
We are changing React Native to behave more like a browser in the sense that bad style values are not runtime errors. (See e.g. D43159284 (d6e9891), D43184380.) The recommended way for developers to ensure they are passing correct style values is to use a typechecker (TypeScript or Flow) in conjunction with E2E tests and manual spot checks.
This diff
This change is similar to D43184380, but here we target the legacy renderer on Android by (1) replacing exceptions with logging calls, (2) adding fallback values (equivalent to resetting the respective props to
null) where needed, and (3) replacingnullchecks inReactPropconverters withinstanceofchecks.Leaving the logging call sites in place (as opposed to deleting them) will be helpful if we decide that we want to repurpose these checks for a new, more visible diagnostic (though we would likely only build such a diagnostic in Fabric at this point).
Differential Revision: D43274525