Rust Analyzer settings

rust-analyzer-settings.md

Andrei's VSCode settings for Rust Analyzer

Custom hints, these options come straight from the Rust Analyzer manual. Check it out for more hints and for other things R-A can do for you!

"rust-analyzer.hover.actions.references.enable": true,
"rust-analyzer.diagnostics.experimental.enable": false,
// can show you if you get references or owned data when you match
"rust-analyzer.inlayHints.bindingModeHints.enable": true,
"rust-analyzer.inlayHints.closingBraceHints.minLines": 25,
// show what variables are captured and whether they are captured
// by value or reference
"rust-analyzer.inlayHints.closureCaptureHints.enable": true,
"rust-analyzer.inlayHints.closureReturnTypeHints.enable": "with_block",
// Closure notation in type and chaining inlay hints
"rust-analyzer.inlayHints.closureStyle": "rust_analyzer",
// for simple enums it shows which variant corresponds to which number
// in memory (helps with debugging serialization code, for example)
"rust-analyzer.inlayHints.discriminantHints.enable": "fieldless",
// These will show you when the compiler does Derefs behind the scenes
"rust-analyzer.inlayHints.expressionAdjustmentHints.enable": "always",
"rust-analyzer.inlayHints.expressionAdjustmentHints.mode": "prefer_prefix",
"rust-analyzer.inlayHints.implicitDrops.enable": true,
// When you get a lifetime error the unnamed annotations ('0, '1, etc.)
// in the error message are visible in code, too.
"rust-analyzer.inlayHints.lifetimeElisionHints.enable": "skip_trivial",
"rust-analyzer.inlayHints.lifetimeElisionHints.useParameterNames": false,
"rust-analyzer.inlayHints.rangeExclusiveHints.enable": true,
// "rust-analyzer.inlayHints.reborrowHints.enable": "always",
"rust-analyzer.inlayHints.typeHints.hideNamedConstructor": true,

Theme customization for unsafe Rust, ect. These settings are described in Rust Analyzer manual.

"editor.semanticTokenColorCustomizations": {
    "rules": {
        "*.unsafe:rust": "#ff00ff",
        // this line would re-color `unsafe`
        // keyword itself back to keyword color
        // (light green in my case)
        // "keyword.unsafe:rust":  "#859900",
        "unresolvedReference:rust" : "#21b321"

    },
    // theme-specific settings
    "[Solarized Light]": {
        // Most themes enable semantic
        // highlighting by default
        // if your theme disables it this
        // will force it back on.
        // "enabled": true,
        "rules": {
            // use bold for mutable stuff
            "parameter.mutable:rust": {
                "fontStyle": "bold"
            },
            "variable.mutable:rust": {
                "fontStyle": "bold"
            },
            // use slightly different color
            // for locals as opposed to
            // parameters
            "variable:rust": "#6C71C4",
            // use underlines for consuming
            // functions, function params, etc.
            "*.consuming": {
                "fontStyle": "underline"
            }
        }
    }
},