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Make inlay hints colors more configurable
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‎docs/user/manual.adoc

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@@ -367,6 +367,30 @@ include::./generated_assists.adoc[]
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== Editor Features
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=== VS Code
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==== Color configurations
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It is possible to change the foreground/background color of inlay hints. Just add this to your
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`settings.json`:
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[source,jsonc]
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----
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{
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"workbench.colorCustomizations": {
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// Name of the theme you are currently using
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"[Default Dark+]": {
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"rust_analyzer.inlayHints.foreground": "#868686f0",
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"rust_analyzer.inlayHints.background": "#3d3d3d48",
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// Overrides for specific kinds of inlay hints
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"rust_analyzer.inlayHints.foreground.typeHints": "#fdb6fdf0",
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"rust_analyzer.inlayHints.foreground.paramHints": "#fdb6fdf0",
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"rust_analyzer.inlayHints.background.chainingHints": "#6b0c0c81"
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}
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}
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}
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----
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==== Special `when` clause context for keybindings.
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You may use `inRustProject` context to configure keybindings for rust projects only. For example:
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[source,json]

‎editors/code/package.json

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@@ -712,14 +712,77 @@
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],
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"colors": [
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{
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"id": "rust_analyzer.inlayHint",
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"description": "Color for inlay hints",
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"id": "rust_analyzer.inlayHints.foreground",
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"description": "Foreground color of inlay hints (is overriden by more specific rust_analyzer.inlayHints.foreground.* configurations)",
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"defaults": {
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"dark": "#A0A0A0F0",
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"light": "#747474",
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"highContrast": "#BEBEBE"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.background",
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"description": "Background color of inlay hints (is overriden by more specific rust_analyzer.inlayHints.background.* configurations)",
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"defaults": {
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"dark": "#11223300",
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"light": "#11223300",
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"highContrast": "#11223300"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.foreground.typeHints",
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"description": "Foreground color of inlay type hints for variables (overrides rust_analyzer.inlayHints.foreground)",
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"defaults": {
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"dark": "rust_analyzer.inlayHints.foreground",
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"light": "rust_analyzer.inlayHints.foreground",
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"highContrast": "rust_analyzer.inlayHints.foreground"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.foreground.chainingHints",
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"description": "Foreground color of inlay type hints for method chains (overrides rust_analyzer.inlayHints.foreground)",
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"defaults": {
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"dark": "rust_analyzer.inlayHints.foreground",
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"light": "rust_analyzer.inlayHints.foreground",
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"highContrast": "rust_analyzer.inlayHints.foreground"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.foreground.parameterHints",
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"description": "Foreground color of function parameter name inlay hints at the call site (overrides rust_analyzer.inlayHints.foreground)",
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"defaults": {
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"dark": "rust_analyzer.inlayHints.foreground",
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"light": "rust_analyzer.inlayHints.foreground",
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"highContrast": "rust_analyzer.inlayHints.foreground"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.background.typeHints",
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"description": "Background color of inlay type hints for variables (overrides rust_analyzer.inlayHints.background)",
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"defaults": {
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"dark": "rust_analyzer.inlayHints.background",
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"light": "rust_analyzer.inlayHints.background",
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"highContrast": "rust_analyzer.inlayHints.background"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.background.chainingHints",
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"description": "Background color of inlay type hints for method chains (overrides rust_analyzer.inlayHints.background)",
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"defaults": {
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"dark": "rust_analyzer.inlayHints.background",
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"light": "rust_analyzer.inlayHints.background",
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"highContrast": "rust_analyzer.inlayHints.background"
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}
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},
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{
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"id": "rust_analyzer.inlayHints.background.parameterHints",
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"description": "Background color of function parameter name inlay hints at the call site (overrides rust_analyzer.inlayHints.background)",
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"defaults": {
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"dark": "rust_analyzer.inlayHints.background",
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"light": "rust_analyzer.inlayHints.background",
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"highContrast": "rust_analyzer.inlayHints.background"
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}
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},
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{
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"id": "rust_analyzer.syntaxTreeBorder",
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"description": "Color of the border displayed in the Rust source code for the selected syntax node (see \"Show Syntax Tree\" command)",

‎editors/code/src/inlay_hints.ts

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@@ -39,54 +39,35 @@ export function activateInlayHints(ctx: Ctx) {
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maybeUpdater.onConfigChange();
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}
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const typeHints = {
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decorationType: vscode.window.createTextEditorDecorationType({
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after: {
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color: new vscode.ThemeColor('rust_analyzer.inlayHint'),
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fontStyle: "normal",
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}
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}),
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toDecoration(hint: ra.InlayHint.TypeHint, conv: lc.Protocol2CodeConverter): vscode.DecorationOptions {
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return {
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range: conv.asRange(hint.range),
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renderOptions: { after: { contentText: `: ${hint.label}` } }
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};
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}
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};
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const paramHints = {
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decorationType: vscode.window.createTextEditorDecorationType({
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before: {
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color: new vscode.ThemeColor('rust_analyzer.inlayHint'),
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fontStyle: "normal",
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}
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}),
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toDecoration(hint: ra.InlayHint.ParamHint, conv: lc.Protocol2CodeConverter): vscode.DecorationOptions {
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return {
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range: conv.asRange(hint.range),
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renderOptions: { before: { contentText: `${hint.label}: ` } }
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};
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}
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};
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const chainingHints = {
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decorationType: vscode.window.createTextEditorDecorationType({
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after: {
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color: new vscode.ThemeColor('rust_analyzer.inlayHint'),
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fontStyle: "normal",
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const typeHints = createHintStyle("type");
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const paramHints = createHintStyle("parameter");
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const chainingHints = createHintStyle("chaining");
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function createHintStyle(hintKind: "type" | "parameter" | "chaining") {
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const [pos, render] = ({
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type: ["after", (label: string) => `: ${label}`],
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parameter: ["before", (label: string) => `${label}: `],
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chaining: ["after", (label: string) => `: ${label}`],
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} as const)[hintKind];
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const fg = new vscode.ThemeColor(`rust_analyzer.inlayHints.foreground.${hintKind}Hints`);
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const bg = new vscode.ThemeColor(`rust_analyzer.inlayHints.background.${hintKind}Hints`);
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return {
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decorationType: vscode.window.createTextEditorDecorationType({
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[pos]: {
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color: fg,
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backgroundColor: bg,
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fontStyle: "normal",
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},
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}),
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toDecoration(hint: ra.InlayHint, conv: lc.Protocol2CodeConverter): vscode.DecorationOptions {
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return {
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range: conv.asRange(hint.range),
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renderOptions: { [pos]: { contentText: render(hint.label) } }
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};
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}
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}),
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toDecoration(hint: ra.InlayHint.ChainingHint, conv: lc.Protocol2CodeConverter): vscode.DecorationOptions {
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return {
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range: conv.asRange(hint.range),
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renderOptions: { after: { contentText: ` ${hint.label}` } }
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};
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}
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};
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};
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}
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class HintsUpdater implements Disposable {
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private sourceFiles = new Map<string, RustSourceFile>(); // map Uri -> RustSourceFile

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