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ESBuild cannot handle ES decorator with typed parameter #3308

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ocavue opened this issue Aug 11, 2023 · 0 comments
Closed

ESBuild cannot handle ES decorator with typed parameter #3308

ocavue opened this issue Aug 11, 2023 · 0 comments

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@ocavue
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ocavue commented Aug 11, 2023 •
edited

ESBuild cannot handle the TypeScript syntax like @log<string>("foo").

Steps to reproduce:

  1. Clone https://github.com/issueset/esbuild-19-0-decorator and install dependencies via pnpm install. This repo contains two TypeScript files entry1.ts and entry2.ts.
  2. Run pnpm run build:tsc. tsc outputs the JavaScript files under dist/ without any issue.
  3. Run pnpm run build:esbuild:1. ESBuild can handle entry1.ts
  4. Run pnpm run build:esbuild:2. ESBuild throws this error: [ERROR] Expected "class" after decorator but found "<"

You can also see the error message through the following link:

https://esbuild.github.io/try/#YgAwLjE5LjAAAGUAZW50cnkyLnRzAGZ1bmN0aW9uIGxvZzxUPihvcHRpb25zOiBUKSB7CiAgY29uc3QgZGVjb3JhdG9yID0gKGNsczogYW55LCBjb250ZXh0OiBDbGFzc0RlY29yYXRvckNvbnRleHQpID0+IHsKICAgIHJldHVybiBjbHM7CiAgfTsKICByZXR1cm4gZGVjb3JhdG9yOwp9CgpAbG9nPHN0cmluZz4oImZvbyIpCmV4cG9ydCBjbGFzcyBNeUNsYXNzIHt9
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