Parameter Hints shown inline all the time (like IntelliJ)

[nbransby]

Would be useful for typescript: https://youtu.be/ZfYOddEmaRw

[mrmlnc]

Just a tip:

VS Code have Hover and SignatureHelp tips:

Hover

SignatureHelp

[waderyan]

@nbransby thanks for opening this up. I watched the video... what specifically are you missing? VS Code does provide parameter hints as @mrmlnc shows in his screenshots.

[nbransby]

inline parameters hints aka the args names prefixed on each value passed into a function invocation swift / objective c style. I think its a great idea to bring this to other languages, and its a perfect feature for an ide to take care of instead of actually introducing it to the language.

[waderyan]

@nbransby can you show me a screenshot? This is what we do today and I'm not seeing how what you are suggesting (args names prefixed on each value passed into a function invocation) is different:

[nbransby]

Difference is that its inline in the editor and present at all times - not in a popup

[waderyan]

Ok interesting. Thank you for clarifying.

[balta2ar]

For the record, here is child issue in vscode-python that I think depends on this one: microsoft/vscode-python#53

[phiresky]

Note that this is already possible using decorations:

Adapting this sample:

vscode.window.createTextEditorDecorationType({
        before: {
            contentText: "myParam:",
			border: "1px solid gray",
			backgroundColor: "#333",
			margin: "1px",
			textDecoration: "test",
        }
    });

I'm not sure how to get information from the running typescript language server though...

[phiresky]

I'm not sure how to get information from the running typescript language server though...

Looks like this is not possible. Other plugins that manipulate typescript either use regexes (typescript importer), a separate Typescript parser (Typescript Hero) or load the files into the typescript compiler themselves (Move TS). None of these methods really seem viable for this problem...

[shiMusa]

Please make this a simple to install extension!
<3 <3 <3
:3

[lannonbr]

So I've wanted this feature in VS Code as well and I ended up making it myself. I currently support JS files at the moment but am interested in adding support for other languages in the future.

Here's a example of it being used in an example JS file:

Here's the extension: https://marketplace.visualstudio.com/items?itemName=lannonbr.vscode-js-annotations

[krulik]

Looking for such an extension for Golang

[DJMcNab]

This feature looks really useful - has it been considered for the language server protocol?

Using @phiresky's example, this could be done through the semantic highlighting api - see microsoft/language-server-protocol#18, microsoft/language-server-protocol#513, etc. for the proposals.

However, in my opinion contentText is an implementation oddity, and the protocol should not require all editors to support that part of the diagnostics api. Indeed, microsoft/language-server-protocol#513 would not support this as it uses textmate scopes. Therefore, it should probably be a seperate feature similar in use to textDocument/publishDiagnostics.

CC. @dbaeumer, who appears to manage the language-server-protocol repo. A tracking/discussion issue there would probably be useful too, with your blessing.

As a further note rust-lang/rfcs#323 (comment) discusses a further use for this to supercede keyword args in Rust.

[jrieken]

The API has been finalised, the feature is implemented. All further work is tracked with the inlay-hints-label

[jrieken]

To verify ensure that registerInlayHintsProvider is in latest vscode.d.ts