Decorator[@targetName] error TS1239: Unable to resolve signature of parameter decorator when called as an expression

[wangsyiiz]

Expected Behavior

There should not be any error occurred when @targetName be used at constructor

Current Behavior

constructor(@inject("IService") @targetName("queueService") ticketQueue: IService) { }

error TS1239: Unable to resolve signature of parameter decorator when called as an expression

Possible Solution

Steps to Reproduce (for bugs)

Context

Your Environment

• Version used: 6.0.2
• Environment name and version: 16.20.2
• Operating System and version: win11
• Link to your project:

Stack trace

[wangsyiiz]

ok, actually I found another decorator @named can be used in normally, but still in documentation it indicates to use @targetName, is that a wrong description?

[gustavohenke]

Both are documented, here's @named's: https://github.com/inversify/InversifyJS/blob/7619dd4395516fa53f435d08f30cead349901be8/wiki/named_bindings.md

The error comes from the signature of @targetName not properly matching the decorator signature anymore. It's new on Typescript 5: https://github.com/microsoft/TypeScript/issues/52435

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That said, I don't understand the difference between @named and @targetName. @named seems slightly better supported, and @targetName's docs mention the use of namedConstraint, which doesn't work because it works on a different tag.

[gustavohenke]

Created #1561 to fix this.