46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
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import * as vscode from 'vscode';
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import { Position, TextDocumentIdentifier } from 'vscode-languageclient';
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import { Server } from '../server';
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type ExpandMacroResult = [string, string]
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function code_format([name, text]: [string, string]): vscode.MarkdownString {
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const markdown = new vscode.MarkdownString(`#### Recursive expansion of ${name}! macro`);
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markdown.appendCodeblock(text, 'rust');
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return markdown;
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}
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export class ExpandMacroHoverProvider implements vscode.HoverProvider {
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public provideHover(
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document: vscode.TextDocument,
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position: vscode.Position,
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token: vscode.CancellationToken,
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): Thenable<vscode.Hover | null> | null {
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async function handle() {
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const request: MacroExpandParams = {
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textDocument: { uri: document.uri.toString() },
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position,
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};
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const result = await Server.client.sendRequest<ExpandMacroResult>(
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'rust-analyzer/expandMacro',
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request
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);
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if (result != null) {
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const formated = code_format(result);
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return new vscode.Hover(formated);
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}
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return null;
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};
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return handle();
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}
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}
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interface MacroExpandParams {
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textDocument: TextDocumentIdentifier;
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position: Position;
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}
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