feat: add rust-analyzer.openCargoToml

FYI #256

package.json

@@ -501,6 +501,11 @@
         "title": "Open docs under cursor",
         "category": "Rust Analyzer"
       },
+      {
+        "command": "rust-analyzer.openCargoToml",
+        "title": "Open Cargo.toml",
+        "category": "Rust Analyzer"
+      },
       {
         "command": "rust-analyzer.parentModule",
         "title": "Locate parent module",

src/commands.ts

@@ -472,3 +472,17 @@ export function openDocs(ctx: Ctx): Cmd {
     }
   };
 }
+
+export function openCargoToml(ctx: Ctx): Cmd {
+  return async () => {
+    const { document } = await workspace.getCurrentState();
+    if (!isRustDocument(document)) return;
+
+    const location = await ctx.client.sendRequest(ra.openCargoToml, {
+      textDocument: { uri: document.uri },
+    });
+    if (!location) return;
+
+    await workspace.jumpTo(location.uri);
+  };
+}

src/index.ts

@@ -45,6 +45,7 @@ export async function activate(context: ExtensionContext): Promise<void> {
   ctx.registerCommand('joinLines', cmds.joinLines);
   ctx.registerCommand('matchingBrace', cmds.matchingBrace);
   ctx.registerCommand('openDocs', cmds.openDocs);
+  ctx.registerCommand('openCargoToml', cmds.openCargoToml);
   ctx.registerCommand('parentModule', cmds.parentModule);
   ctx.registerCommand('run', cmds.run);
   ctx.registerCommand('debugSingle', cmds.debugSingle);

src/lsp_ext.ts

@@ -119,3 +119,9 @@ export interface CommandLinkGroup {
 }
 
 export const openDocs = new lc.RequestType<lc.TextDocumentPositionParams, string | void, void>('experimental/externalDocs');
+
+export const openCargoToml = new lc.RequestType<OpenCargoTomlParams, lc.Location, void>('experimental/openCargoToml');
+
+export interface OpenCargoTomlParams {
+  textDocument: lc.TextDocumentIdentifier;
+}