1 files changed, 242 insertions, 15 deletions

diff --git a/editors/code/src/commands/index.ts b/editors/code/src/commands/index.ts
index 1ed8258d8..1585912a2 100644
--- a/editors/code/src/commands/index.ts
+++ b/editors/code/src/commands/index.ts
@@ -4,18 +4,251 @@ import * as ra from '../rust-analyzer-api';
 
 import { Ctx, Cmd } from '../ctx';
 import { applySnippetWorkspaceEdit } from '../snippets';
+import { spawnSync } from 'child_process';
 
-export * from './analyzer_status';
-export * from './matching_brace';
-export * from './join_lines';
-export * from './on_enter';
-export * from './parent_module';
 export * from './syntax_tree';
-export * from './expand_macro';
 export * from './runnables';
-export * from './ssr';
-export * from './server_version';
-export * from './toggle_inlay_hints';
+
+export function analyzerStatus(ctx: Ctx): Cmd {
+    const tdcp = new class implements vscode.TextDocumentContentProvider {
+        readonly uri = vscode.Uri.parse('rust-analyzer-status://status');
+        readonly eventEmitter = new vscode.EventEmitter<vscode.Uri>();
+
+        provideTextDocumentContent(_uri: vscode.Uri): vscode.ProviderResult<string> {
+            if (!vscode.window.activeTextEditor) return '';
+
+            return ctx.client.sendRequest(ra.analyzerStatus, null);
+        }
+
+        get onDidChange(): vscode.Event<vscode.Uri> {
+            return this.eventEmitter.event;
+        }
+    }();
+
+    let poller: NodeJS.Timer | undefined = undefined;
+
+    ctx.pushCleanup(
+        vscode.workspace.registerTextDocumentContentProvider(
+            'rust-analyzer-status',
+            tdcp,
+        ),
+    );
+
+    ctx.pushCleanup({
+        dispose() {
+            if (poller !== undefined) {
+                clearInterval(poller);
+            }
+        },
+    });
+
+    return async () => {
+        if (poller === undefined) {
+            poller = setInterval(() => tdcp.eventEmitter.fire(tdcp.uri), 1000);
+        }
+        const document = await vscode.workspace.openTextDocument(tdcp.uri);
+        return vscode.window.showTextDocument(document, vscode.ViewColumn.Two, true);
+    };
+}
+
+export function matchingBrace(ctx: Ctx): Cmd {
+    return async () => {
+        const editor = ctx.activeRustEditor;
+        const client = ctx.client;
+        if (!editor || !client) return;
+
+        const response = await client.sendRequest(ra.matchingBrace, {
+            textDocument: { uri: editor.document.uri.toString() },
+            positions: editor.selections.map(s =>
+                client.code2ProtocolConverter.asPosition(s.active),
+            ),
+        });
+        editor.selections = editor.selections.map((sel, idx) => {
+            const active = client.protocol2CodeConverter.asPosition(
+                response[idx],
+            );
+            const anchor = sel.isEmpty ? active : sel.anchor;
+            return new vscode.Selection(anchor, active);
+        });
+        editor.revealRange(editor.selection);
+    };
+}
+
+export function joinLines(ctx: Ctx): Cmd {
+    return async () => {
+        const editor = ctx.activeRustEditor;
+        const client = ctx.client;
+        if (!editor || !client) return;
+
+        const items: lc.TextEdit[] = await client.sendRequest(ra.joinLines, {
+            ranges: editor.selections.map((it) => client.code2ProtocolConverter.asRange(it)),
+            textDocument: { uri: editor.document.uri.toString() },
+        });
+        editor.edit((builder) => {
+            client.protocol2CodeConverter.asTextEdits(items).forEach((edit) => {
+                builder.replace(edit.range, edit.newText);
+            });
+        });
+    };
+}
+
+export function onEnter(ctx: Ctx): Cmd {
+    async function handleKeypress() {
+        const editor = ctx.activeRustEditor;
+        const client = ctx.client;
+
+        if (!editor || !client) return false;
+
+        const change = await client.sendRequest(ra.onEnter, {
+            textDocument: { uri: editor.document.uri.toString() },
+            position: client.code2ProtocolConverter.asPosition(
+                editor.selection.active,
+            ),
+        }).catch(_error => {
+            // client.logFailedRequest(OnEnterRequest.type, error);
+            return null;
+        });
+        if (!change) return false;
+
+        const workspaceEdit = client.protocol2CodeConverter.asWorkspaceEdit(change);
+        await applySnippetWorkspaceEdit(workspaceEdit);
+        return true;
+    }
+
+    return async () => {
+        if (await handleKeypress()) return;
+
+        await vscode.commands.executeCommand('default:type', { text: '\n' });
+    };
+}
+
+export function parentModule(ctx: Ctx): Cmd {
+    return async () => {
+        const editor = ctx.activeRustEditor;
+        const client = ctx.client;
+        if (!editor || !client) return;
+
+        const response = await client.sendRequest(ra.parentModule, {
+            textDocument: { uri: editor.document.uri.toString() },
+            position: client.code2ProtocolConverter.asPosition(
+                editor.selection.active,
+            ),
+        });
+        const loc = response[0];
+        if (loc == null) return;
+
+        const uri = client.protocol2CodeConverter.asUri(loc.uri);
+        const range = client.protocol2CodeConverter.asRange(loc.range);
+
+        const doc = await vscode.workspace.openTextDocument(uri);
+        const e = await vscode.window.showTextDocument(doc);
+        e.selection = new vscode.Selection(range.start, range.start);
+        e.revealRange(range, vscode.TextEditorRevealType.InCenter);
+    };
+}
+
+export function ssr(ctx: Ctx): Cmd {
+    return async () => {
+        const client = ctx.client;
+        if (!client) return;
+
+        const options: vscode.InputBoxOptions = {
+            value: "() ==>> ()",
+            prompt: "Enter request, for example 'Foo($a:expr) ==> Foo::new($a)' ",
+            validateInput: async (x: string) => {
+                try {
+                    await client.sendRequest(ra.ssr, { query: x, parseOnly: true });
+                } catch (e) {
+                    return e.toString();
+                }
+                return null;
+            }
+        };
+        const request = await vscode.window.showInputBox(options);
+        if (!request) return;
+
+        const edit = await client.sendRequest(ra.ssr, { query: request, parseOnly: false });
+
+        await vscode.workspace.applyEdit(client.protocol2CodeConverter.asWorkspaceEdit(edit));
+    };
+}
+
+export function serverVersion(ctx: Ctx): Cmd {
+    return async () => {
+        const { stdout } = spawnSync(ctx.serverPath, ["--version"], { encoding: "utf8" });
+        const commitHash = stdout.slice(`rust-analyzer `.length).trim();
+        const { releaseTag } = ctx.config.package;
+
+        void vscode.window.showInformationMessage(
+            `rust-analyzer version: ${releaseTag ?? "unreleased"} (${commitHash})`
+        );
+    };
+}
+
+export function toggleInlayHints(ctx: Ctx): Cmd {
+    return async () => {
+        await vscode
+            .workspace
+            .getConfiguration(`${ctx.config.rootSection}.inlayHints`)
+            .update('enable', !ctx.config.inlayHints.enable, vscode.ConfigurationTarget.Workspace);
+    };
+}
+
+// Opens the virtual file that will show the syntax tree
+//
+// The contents of the file come from the `TextDocumentContentProvider`
+export function expandMacro(ctx: Ctx): Cmd {
+    function codeFormat(expanded: ra.ExpandedMacro): string {
+        let result = `// Recursive expansion of ${expanded.name}! macro\n`;
+        result += '// ' + '='.repeat(result.length - 3);
+        result += '\n\n';
+        result += expanded.expansion;
+
+        return result;
+    }
+
+    const tdcp = new class implements vscode.TextDocumentContentProvider {
+        uri = vscode.Uri.parse('rust-analyzer://expandMacro/[EXPANSION].rs');
+        eventEmitter = new vscode.EventEmitter<vscode.Uri>();
+        async provideTextDocumentContent(_uri: vscode.Uri): Promise<string> {
+            const editor = vscode.window.activeTextEditor;
+            const client = ctx.client;
+            if (!editor || !client) return '';
+
+            const position = editor.selection.active;
+
+            const expanded = await client.sendRequest(ra.expandMacro, {
+                textDocument: { uri: editor.document.uri.toString() },
+                position,
+            });
+
+            if (expanded == null) return 'Not available';
+
+            return codeFormat(expanded);
+        }
+
+        get onDidChange(): vscode.Event<vscode.Uri> {
+            return this.eventEmitter.event;
+        }
+    }();
+
+    ctx.pushCleanup(
+        vscode.workspace.registerTextDocumentContentProvider(
+            'rust-analyzer',
+            tdcp,
+        ),
+    );
+
+    return async () => {
+        const document = await vscode.workspace.openTextDocument(tdcp.uri);
+        tdcp.eventEmitter.fire(tdcp.uri);
+        return vscode.window.showTextDocument(
+            document,
+            vscode.ViewColumn.Two,
+            true,
+        );
+    };
+}
 
 export function collectGarbage(ctx: Ctx): Cmd {
     return async () => ctx.client.sendRequest(ra.collectGarbage, null);
@@ -35,12 +268,6 @@ export function showReferences(ctx: Ctx): Cmd {
     };
 }
 
-export function applySourceChange(ctx: Ctx): Cmd {
-    return async (change: ra.SourceChange) => {
-        await sourceChange.applySourceChange(ctx, change);
-    };
-}
-
 export function applyActionGroup(_ctx: Ctx): Cmd {
     return async (actions: { label: string; edit: vscode.WorkspaceEdit }[]) => {
         const selectedAction = await vscode.window.showQuickPick(actions);