Syntax Highlighting in Hover Tooltips

[alterae]

Currently, code in hover tooltips (such as the line that shows what module a given symbol is in, the symbol signature, and any code blocks in the documentation for a symbol) generated by this plugin lack any syntax highlighting. This somewhat impairs readability of these tooltips.

This does not seem to be a general issue with Sublime LSP, as LSP-Deno highlights code in tooltips just fine.

Screenshots

LSP-rust-analyzer tooltip, from a project of mine

LSP-Deno tooltip, for comparisson

[rchl]

Works here?

Can you provide the output of the LSP: Troubleshoot server command?

[alterae]

Can you provide the output of the LSP: Troubleshoot server command?

Troubleshooting: rust-analyzer

Version

• LSP: 1.15.0
• Sublime Text: 4126

  Server Test Run

• exit code: 0
• output

## Server Configuration
 - command
```json
[
  "${storage_path}/LSP-rust-analyzer/rust-analyzer"
]

• shell command

  "/home/michelle/.cache/sublime-text/Package Storage/LSP-rust-analyzer/rust-analyzer"

• selector

  source.rust

• priority_selector

  source.rust

• init_options

  {}

• settings

  {
  "rust-analyzer": {
  "assist": {
    "allowMergingIntoGlobImports": true, 
    "importEnforceGranularity": false, 
    "importGranularity": "crate", 
    "importGroup": true, 
    "importPrefix": "plain"
  }, 
  "callInfo": {
    "full": true
  }, 
  "cargo": {
    "allFeatures": false, 
    "autoreload": true, 
    "features": [], 
    "noDefaultFeatures": false, 
    "noSysroot": false, 
    "runBuildScripts": true, 
    "target": null, 
    "unsetTest": [
      "core"
    ], 
    "useRustcWrapperForBuildScripts": true
  }, 
  "cargoRunner": null, 
  "checkOnSave": {
    "allFeatures": null, 
    "allTargets": true, 
    "command": "clippy", 
    "enable": true, 
    "extraArgs": [], 
    "features": null, 
    "noDefaultFeatures": null, 
    "overrideCommand": null, 
    "target": null
  }, 
  "completion": {
    "addCallArgumentSnippets": true, 
    "addCallParenthesis": true, 
    "autoimport": {
      "enable": true
    }, 
    "autoself": {
      "enable": true
    }, 
    "postfix": {
      "enable": true
    }
  }, 
  "debug": {
    "engine": "auto", 
    "engineSettings": {}, 
    "openDebugPane": false, 
    "sourceFileMap": {
      "/rustc/<id>": "${env:USERPROFILE}/.rustup/toolchains/<toolchain-id>/lib/rustlib/src/rust"
    }
  }, 
  "diagnostics": {
    "disabled": [], 
    "enable": true, 
    "enableExperimental": true, 
    "remapPrefix": {}, 
    "warningsAsHint": [], 
    "warningsAsInfo": []
  }, 
  "experimental": {
    "procAttrMacros": false
  }, 
  "files": {
    "excludeDirs": [], 
    "watcher": "client"
  }, 
  "highlighting": {
    "strings": true
  }, 
  "hover": {
    "documentation": true, 
    "linksInHover": true
  }, 
  "hoverActions": {
    "debug": true, 
    "enable": true, 
    "gotoTypeDef": true, 
    "implementations": true, 
    "linksInHover": true, 
    "references": false, 
    "run": true
  }, 
  "inlayHints": {
    "chainingHints": true, 
    "enable": true, 
    "maxLength": 25, 
    "parameterHints": true, 
    "smallerHints": true, 
    "typeHints": true
  }, 
  "joinLines": {
    "joinAssignments": true, 
    "joinElseIf": true, 
    "removeTrailingComma": true, 
    "unwrapTrivialBlock": true
  }, 
  "lens": {
    "debug": true, 
    "enable": true, 
    "implementations": true, 
    "methodReferences": false, 
    "references": false, 
    "run": true
  }, 
  "linkedProjects": [], 
  "lruCapacity": null, 
  "notifications": {
    "cargoTomlNotFound": true
  }, 
  "procMacro": {
    "enable": true, 
    "server": null
  }, 
  "runnableEnv": null, 
  "runnables": {
    "cargoExtraArgs": [], 
    "overrideCargo": null
  }, 
  "rustcSource": null, 
  "rustfmt": {
    "enableRangeFormatting": false, 
    "extraArgs": [], 
    "overrideCommand": null
  }, 
  "terminusAutoClose": false, 
  "terminusUsePanel": true, 
  "workspace": {
    "symbol": {
      "search": {
        "kind": "only_types", 
        "scope": "workspace"
      }
    }
  }
  }
  }

• env

  {}

Active view

• File name

  /home/michelle/code/rust/pong/src/game/ball.rs

• Settings

  {
  "auto_complete_selector": "meta.tag, source - comment - string.quoted.double.block - string.quoted.single.block - string.unquoted.heredoc", 
  "lsp_active": true, 
  "syntax": "Packages/Rust Enhanced/RustEnhanced.sublime-syntax"
  }

• base scope

  source.rust

Project / Workspace

• folders

  [
  "/home/michelle/code/rust/pong"
  ]

• is project: True
• project data:

  {
  "folders": [
  {
    "binary_file_patterns": [
      "target/*"
    ], 
    "path": "."
  }
  ]
  }

LSP configuration

{
  "clients": {
    "ccls": {
      "auto_complete_selector": "punctuation.accessor | (meta.preprocessor.include string - punctuation.definition.string.end)", 
      "command": [
        "ccls"
      ], 
      "selector": "source.c | source.c++ | source.objc | source.objc++"
    }, 
    "ocaml": {
      "command": [
        "ocamllsp"
      ], 
      "enabled": true, 
      "selector": "source.ocaml"
    }
  }, 
  "diagnostics_highlight_style": {
    "error": "underline", 
    "hint": "stippled", 
    "info": "stippled", 
    "warning": "underline"
  }, 
  "lsp_format_on_save": true, 
  "popup_max_characters_height": 25, 
  "popup_max_characters_width": 78, 
  "semantic_highlighting": true, 
  "show_code_lens": "phantom", 
  "show_diagnostics_panel_on_save": 0
}

System PATH

• /usr/local/bin
• /usr/bin
• /bin
• /usr/local/sbin
• /home/michelle/.dotnet/tools
• /usr/lib/jvm/default/bin
• /usr/bin/site_perl
• /usr/bin/vendor_perl
• /usr/bin/core_perl

[rchl]

I'm using built-in Rust syntax from Packages/Rust/Rust.sublime-syntax. You are using Packages/Rust Enhanced/RustEnhanced.sublime-syntax.

I guess you've disabled the built-in syntax so the mdpopups dependency used for highlighting the code blocks can't find it and defaults to plain text.

I guess one option is to re-enable the built-in syntax. You should still be able to use "RustEnhanced" for the files themselves.

[alterae]

Ah, yeah. Re-enabling the Rust package solved the issue. Thank you.