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Pass prod error messages directly to constructor (#17063)
* Remove "Invariant Violation" from dev errors
When I made the change to compile `invariant` to throw expressions, I
left a small runtime to set the error's `name` property to "Invariant
Violation" to maintain the existing behavior.
I think we can remove it. The argument for keeping it is to preserve
continuity in error logs, but this only affects development errors,
anyway: production error messages are replaced with error codes.
* Pass prod error messages directly to constructor
Updates the `invariant` transform to pass an error message string
directly to the Error constructor, instead of mutating the
message property.
Turns this code:
```js
invariant(condition, 'A %s message that contains %s', adj, noun);
```
into this:
```js
if (!condition) {
throw Error(
__DEV__
? `A ${adj} message that contains ${noun}`
: formatProdErrorMessage(ERR_CODE, adj, noun)
);
}
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54 changes: 19 additions & 35 deletions
54
scripts/error-codes/__tests__/__snapshots__/transform-error-messages.js.snap
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,76 +1,60 @@ | ||
| // Jest Snapshot v1, https://goo.gl/fbAQLP | ||
|
|
||
| exports[`error transform should correctly transform invariants that are not in the error codes map 1`] = ` | ||
| "import _ReactError from \\"shared/ReactError\\"; | ||
| import invariant from 'shared/invariant'; | ||
| "import invariant from 'shared/invariant'; | ||
| /*FIXME (minify-errors-in-prod): Unminified error message in production build!*/ | ||
| (function () { | ||
| if (!condition) { | ||
| throw _ReactError(Error(\\"This is not a real error message.\\")); | ||
| } | ||
| })();" | ||
| if (!condition) { | ||
| throw Error(\\"This is not a real error message.\\"); | ||
| }" | ||
| `; | ||
|
|
||
| exports[`error transform should handle escaped characters 1`] = ` | ||
| "import _ReactError from \\"shared/ReactError\\"; | ||
| import invariant from 'shared/invariant'; | ||
| "import invariant from 'shared/invariant'; | ||
| /*FIXME (minify-errors-in-prod): Unminified error message in production build!*/ | ||
| (function () { | ||
| if (!condition) { | ||
| throw _ReactError(Error(\\"What's up?\\")); | ||
| } | ||
| })();" | ||
| if (!condition) { | ||
| throw Error(\\"What's up?\\"); | ||
| }" | ||
| `; | ||
|
|
||
| exports[`error transform should replace simple invariant calls 1`] = ` | ||
| "import _ReactErrorProd from \\"shared/ReactErrorProd\\"; | ||
| import _ReactError from \\"shared/ReactError\\"; | ||
| "import _formatProdErrorMessage from \\"shared/formatProdErrorMessage\\"; | ||
| import invariant from 'shared/invariant'; | ||
| if (!condition) { | ||
| if (__DEV__) { | ||
| throw _ReactError(Error(\\"Do not override existing functions.\\")); | ||
| } else { | ||
| throw _ReactErrorProd(Error(16)); | ||
| { | ||
| throw Error(__DEV__ ? \\"Do not override existing functions.\\" : _formatProdErrorMessage(16)); | ||
| } | ||
| }" | ||
| `; | ||
|
|
||
| exports[`error transform should support invariant calls with a concatenated template string and args 1`] = ` | ||
| "import _ReactErrorProd from \\"shared/ReactErrorProd\\"; | ||
| import _ReactError from \\"shared/ReactError\\"; | ||
| "import _formatProdErrorMessage from \\"shared/formatProdErrorMessage\\"; | ||
| import invariant from 'shared/invariant'; | ||
| if (!condition) { | ||
| if (__DEV__) { | ||
| throw _ReactError(Error(\\"Expected a component class, got \\" + Foo + \\".\\" + Bar)); | ||
| } else { | ||
| throw _ReactErrorProd(Error(18), Foo, Bar); | ||
| { | ||
| throw Error(__DEV__ ? \\"Expected a component class, got \\" + Foo + \\".\\" + Bar : _formatProdErrorMessage(18, Foo, Bar)); | ||
| } | ||
| }" | ||
| `; | ||
|
|
||
| exports[`error transform should support invariant calls with args 1`] = ` | ||
| "import _ReactErrorProd from \\"shared/ReactErrorProd\\"; | ||
| import _ReactError from \\"shared/ReactError\\"; | ||
| "import _formatProdErrorMessage from \\"shared/formatProdErrorMessage\\"; | ||
| import invariant from 'shared/invariant'; | ||
| if (!condition) { | ||
| if (__DEV__) { | ||
| throw _ReactError(Error(\\"Expected \\" + foo + \\" target to be an array; got \\" + bar)); | ||
| } else { | ||
| throw _ReactErrorProd(Error(7), foo, bar); | ||
| { | ||
| throw Error(__DEV__ ? \\"Expected \\" + foo + \\" target to be an array; got \\" + bar : _formatProdErrorMessage(7, foo, bar)); | ||
| } | ||
| }" | ||
| `; | ||
|
|
||
| exports[`error transform should support noMinify option 1`] = ` | ||
| "import _ReactError from \\"shared/ReactError\\"; | ||
| import invariant from 'shared/invariant'; | ||
| "import invariant from 'shared/invariant'; | ||
| if (!condition) { | ||
| throw _ReactError(Error(\\"Do not override existing functions.\\")); | ||
| throw Error(\\"Do not override existing functions.\\"); | ||
| }" | ||
| `; |
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