161 lines
8.3 KiB
Zig
161 lines
8.3 KiB
Zig
const std = @import("std");
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const zls = @import("zls");
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const headerPkg = zls.header;
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const Server = zls.Server;
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const types = zls.types;
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const requests = zls.requests;
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const initialize_msg =
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\\{"processId":6896,"clientInfo":{"name":"vscode","version":"1.46.1"},"rootPath":null,"rootUri":null,"capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{"documentChanges":true,"resourceOperations":["create","rename","delete"],"failureHandling":"textOnlyTransactional"},"didChangeConfiguration":{"dynamicRegistration":true},"didChangeWatchedFiles":{"dynamicRegistration":true},"symbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]},"tagSupport":{"valueSet":[1]}},"executeCommand":{"dynamicRegistration":true},"configuration":true,"workspaceFolders":true},"textDocument":{"publishDiagnostics":{"relatedInformation":true,"versionSupport":false,"tagSupport":{"valueSet":[1,2]},"complexDiagnosticCodeSupport":true},"synchronization":{"dynamicRegistration":true,"willSave":true,"willSaveWaitUntil":true,"didSave":true},"completion":{"dynamicRegistration":true,"contextSupport":true,"completionItem":{"snippetSupport":true,"commitCharactersSupport":true,"documentationFormat":["markdown","plaintext"],"deprecatedSupport":true,"preselectSupport":true,"tagSupport":{"valueSet":[1]},"insertReplaceSupport":true},"completionItemKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25]}},"hover":{"dynamicRegistration":true,"contentFormat":["markdown","plaintext"]},"signatureHelp":{"dynamicRegistration":true,"signatureInformation":{"documentationFormat":["markdown","plaintext"],"parameterInformation":{"labelOffsetSupport":true}},"contextSupport":true},"definition":{"dynamicRegistration":true,"linkSupport":true},"references":{"dynamicRegistration":true},"documentHighlight":{"dynamicRegistration":true},"documentSymbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]},"hierarchicalDocumentSymbolSupport":true,"tagSupport":{"valueSet":[1]}},"codeAction":{"dynamicRegistration":true,"isPreferredSupport":true,"codeActionLiteralSupport":{"codeActionKind":{"valueSet":["","quickfix","refactor","refactor.extract","refactor.inline","refactor.rewrite","source","source.organizeImports"]}}},"codeLens":{"dynamicRegistration":true},"formatting":{"dynamicRegistration":true},"rangeFormatting":{"dynamicRegistration":true},"onTypeFormatting":{"dynamicRegistration":true},"rename":{"dynamicRegistration":true,"prepareSupport":true},"documentLink":{"dynamicRegistration":true,"tooltipSupport":true},"typeDefinition":{"dynamicRegistration":true,"linkSupport":true},"implementation":{"dynamicRegistration":true,"linkSupport":true},"colorProvider":{"dynamicRegistration":true},"foldingRange":{"dynamicRegistration":true,"rangeLimit":5000,"lineFoldingOnly":true},"declaration":{"dynamicRegistration":true,"linkSupport":true},"selectionRange":{"dynamicRegistration":true},"semanticTokens":{"dynamicRegistration":true,"tokenTypes":["comment","keyword","number","regexp","operator","namespace","type","struct","class","interface","enum","typeParameter","function","member","macro","variable","parameter","property","label"],"tokenModifiers":["declaration","documentation","static","abstract","deprecated","readonly"]}},"window":{"workDoneProgress":true}},"trace":"off","workspaceFolders":[{"uri":"file://./tests", "name":"root"}]}
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;
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const allocator = std.testing.allocator;
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pub const Context = struct {
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server: Server,
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request_id: u32 = 1,
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pub fn init() !Context {
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var context = Context{
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.server = try Server.init(
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allocator,
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.{
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.enable_ast_check_diagnostics = false,
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.enable_semantic_tokens = true,
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.enable_inlay_hints = true,
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.inlay_hints_exclude_single_argument = false,
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.inlay_hints_show_builtin = true,
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},
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null,
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),
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};
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try context.request("initialize", initialize_msg, null);
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try context.request("initialized", "{}", null);
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return context;
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}
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pub fn deinit(self: *Context) void {
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self.request("shutdown", "{}", null) catch {};
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self.server.deinit();
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}
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pub fn requestAlloc(
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self: *Context,
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method: []const u8,
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params: []const u8,
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) ![]const u8 {
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var output = std.ArrayListUnmanaged(u8){};
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defer output.deinit(allocator);
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// create the request
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self.request_id += 1;
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const req = try std.fmt.allocPrint(allocator,
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\\{{"jsonrpc":"2.0","id":{},"method":"{s}","params":{s}}}
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, .{ self.request_id, method, params });
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defer allocator.free(req);
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// send the request to the server
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try self.server.processJsonRpc(output.writer(allocator), req);
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// get the output from the server
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var buffer_stream = std.io.fixedBufferStream(output.items);
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const header = try headerPkg.readRequestHeader(allocator, buffer_stream.reader());
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defer header.deinit(allocator);
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var response_bytes = try allocator.alloc(u8, header.content_length);
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errdefer allocator.free(response_bytes);
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const content_length = try buffer_stream.reader().readAll(response_bytes);
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try std.testing.expectEqual(content_length, header.content_length);
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return response_bytes;
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}
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pub fn request(
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self: *Context,
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method: []const u8,
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params: []const u8,
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expect: ?[]const u8,
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) !void {
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const response_bytes = try self.requestAlloc(method, params);
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defer allocator.free(response_bytes);
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const expected = expect orelse return;
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// parse the response
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var parser = std.json.Parser.init(allocator, false);
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defer parser.deinit();
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var tree = try parser.parse(response_bytes);
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defer tree.deinit();
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const response = tree.root.Object;
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// assertions
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try std.testing.expectEqualStrings("2.0", response.get("jsonrpc").?.String);
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try std.testing.expectEqual(self.request_id, @intCast(u32, response.get("id").?.Integer));
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try std.testing.expect(!response.contains("error"));
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const result_json = try std.json.stringifyAlloc(allocator, response.get("result").?, .{});
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defer allocator.free(result_json);
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try std.testing.expectEqualStrings(expected, result_json);
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}
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// helper
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pub fn requestDidOpen(self: *Context, uri: []const u8, source: []const u8) !void {
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const open_document = requests.OpenDocument{
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.params = .{
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.textDocument = .{
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.uri = uri,
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// .languageId = "zig",
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// .version = 420,
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.text = source,
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},
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},
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};
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const params = try std.json.stringifyAlloc(allocator, open_document.params, .{});
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defer allocator.free(params);
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try self.request("textDocument/didOpen", params, null);
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}
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pub fn Response(comptime Result: type) type {
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return struct {
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jsonrpc: []const u8,
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id: types.RequestId,
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result: Result,
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pub fn deinit(self: @This()) void {
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const parse_options = std.json.ParseOptions{
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.allocator = allocator,
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.ignore_unknown_fields = true,
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};
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std.json.parseFree(@This(), self, parse_options);
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}
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};
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}
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pub fn requestGetResponse(self: *Context, comptime Result: type, method: []const u8, request_struct: anytype) !Response(Result) {
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const params = try std.json.stringifyAlloc(allocator, request_struct.params, .{});
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defer allocator.free(params);
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const response_bytes = try self.requestAlloc(method, params);
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defer allocator.free(response_bytes);
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const parse_options = std.json.ParseOptions{
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.allocator = allocator,
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.ignore_unknown_fields = true,
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};
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var token_stream = std.json.TokenStream.init(response_bytes);
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const response = try std.json.parse(Response(Result), &token_stream, parse_options);
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errdefer std.json.parseFree(Response(Result), response, parse_options);
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// TODO validate jsonrpc and id
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return response;
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}
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};
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