[jspi] Fix TypeScript definitions for JSPI exports#26943
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sbc100
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May 13, 2026
JSPI exported functions return a Promise when invoked from JavaScript. However, the generated TypeScript definitions previously typed them as returning synchronous values. Update the TypeScript definition generator to check whether JSPI is enabled and wrap the return types of JSPI exports in a Promise. Also add test coverage for JSPI TypeScript definitions and wildcard matching.
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JSPI exported functions return a Promise when invoked from JavaScript. However, the generated TypeScript definitions previously typed them as returning synchronous values.
Update the TypeScript definition generator to check whether JSPI is enabled and wrap the return types of JSPI exports in a Promise. Also add test coverage for JSPI TypeScript definitions and wildcard matching.