Add support for LSP 3.17 inlineValue

[zobo]

If the LS exposes the inline value capability, vscode allows the debugger to display those in the editor.

https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#textDocument_inlineValue

This is already something I implemented and will port to this code-base when possible: https://github.com/zobo/php-language-server/pull/59

[dantleech]

what should this look like?

we can easily evaluate a specific "node" at an offset: f.e. $reflector->reflectOffset($code, 12)->type()->__toString() (e.g. $x<> = 1 + 2 will return 3)

[zobo]

TextDocument inline value is used by IDE to get a list of variables that can be evaluated by the debugger for a range in the document.

These get displayed on the right side of the code when debugging.

[dantleech]

How should it get the list of vars?

[zobo]

Sorry for the late reply, I'll try to be more exact. The Inline values request all evaluatable variables within a document section. The end result is something like this (random picture from SO):

So the command would return a list of variables in the document section that the debugger could evaluate in the current live debugger session. These are normally:

• arguments of the function
• local variables assigned
• local variables accessed
• local variables inside foreach

Again the LS does not EVALUATE them, it just reports the names (and ranges) for debugger to do the evaluation then.

Does this make more sense?

[zobo]

Related PR https://github.com/phpactor/language-server-protocol/pull/19