Allow viewing the crate graph in a webview

editors/code/src/commands.ts

@@ -429,6 +429,14 @@ export function viewHir(ctx: Ctx): Cmd {
     };
 }
 
+export function viewCrateGraph(ctx: Ctx): Cmd {
+    return async () => {
+        const panel = vscode.window.createWebviewPanel("rust-analyzer.crate-graph", "rust-analyzer crate graph", vscode.ViewColumn.Two);
+        const svg = await ctx.client.sendRequest(ra.viewCrateGraph);
+        panel.webview.html = svg;
+    };
+}
+
 // Opens the virtual file that will show the syntax tree
 //
 // The contents of the file come from the `TextDocumentContentProvider`

editors/code/src/lsp_ext.ts

@@ -27,6 +27,8 @@ export const syntaxTree = new lc.RequestType<SyntaxTreeParams, string, void>("ru
 
 export const viewHir = new lc.RequestType<lc.TextDocumentPositionParams, string, void>("rust-analyzer/viewHir");
 
+export const viewCrateGraph = new lc.RequestType0<string, void>("rust-analyzer/viewCrateGraph");
+
 export interface ExpandMacroParams {
     textDocument: lc.TextDocumentIdentifier;
     position: lc.Position;

editors/code/src/main.ts

@@ -106,6 +106,7 @@ async function tryActivate(context: vscode.ExtensionContext) {
     ctx.registerCommand('parentModule', commands.parentModule);
     ctx.registerCommand('syntaxTree', commands.syntaxTree);
     ctx.registerCommand('viewHir', commands.viewHir);
+    ctx.registerCommand('viewCrateGraph', commands.viewCrateGraph);
     ctx.registerCommand('expandMacro', commands.expandMacro);
     ctx.registerCommand('run', commands.run);
     ctx.registerCommand('copyRunCommandLine', commands.copyRunCommandLine);