Function expressions and arrow functions used as arguments to function calls were incorrectly being flagged for needing explicit return type annotations with --isolatedDeclarations. This change modifies the logic in expressionToTypeNode.ts to skip inference fallback reporting for function expressions that are direct arguments to call expressions. The fix addresses the underlying issue by checking if the function expression's parent is a CallExpression and passing reportFallback=false in those cases, preventing the inference fallback error from being generated in the first place. Fixes #62085 Co-authored-by: jakebailey <5341706+jakebailey@users.noreply.github.com>
TypeScript
TypeScript is a language for application-scale JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript. Try it out at the playground, and stay up to date via our blog and Twitter account.
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