Fix decorator emit crash #60224
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Fix decorator emit crash #60224
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…wnleveling stage 3 decorators
typescript-bot
added
Author: Team
For Milestone Bug
jakebailey
reviewed
Oct 14, 2024
| export function getAllDecoratorsOfClass(node: ClassLikeDeclaration, useLegacyDecorators: boolean): AllDecorators | undefined { | ||
| const decorators = getDecorators(node); | ||
| const parameters = getDecoratorsOfParameters(getFirstConstructorWithBody(node)); | ||
| const parameters = useLegacyDecorators ? getDecoratorsOfParameters(getFirstConstructorWithBody(node)) : undefined; |
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Should getDecoratorsOfParameters take the parameter and return undefined instead of copying the ternary to all call sites?
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Branching is cheaper at runtime than invocation, so probably not.
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Maybe a bit overoptimized but alright.
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In this case specifically, just passing the argument to getDecoratorsOfParameters means iterating over all class elements to find a constructor, which is unnecessary work.
jakebailey
approved these changes
Oct 14, 2024
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Fixes a crash when transforming Stage 3 decorators when both class element decorators and class constructor parameter decorators are present.
Fixes #58269