2558 lines
96 KiB
Zig
2558 lines
96 KiB
Zig
const Server = @This();
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const std = @import("std");
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const zig_builtin = @import("builtin");
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const Config = @import("Config.zig");
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const DocumentStore = @import("DocumentStore.zig");
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const requests = @import("requests.zig");
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const types = @import("types.zig");
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const analysis = @import("analysis.zig");
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const ast = @import("ast.zig");
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const references = @import("references.zig");
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const offsets = @import("offsets.zig");
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const semantic_tokens = @import("semantic_tokens.zig");
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const inlay_hints = @import("inlay_hints.zig");
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const code_actions = @import("code_actions.zig");
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const shared = @import("shared.zig");
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const Ast = std.zig.Ast;
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const tracy = @import("tracy.zig");
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const uri_utils = @import("uri.zig");
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const diff = @import("diff.zig");
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const data = @import("data/data.zig");
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const snipped_data = @import("data/snippets.zig");
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const log = std.log.scoped(.server);
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// Server fields
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config: *Config,
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allocator: std.mem.Allocator = undefined,
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arena: std.heap.ArenaAllocator = undefined,
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document_store: DocumentStore = undefined,
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builtin_completions: std.ArrayListUnmanaged(types.CompletionItem),
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client_capabilities: ClientCapabilities = .{},
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offset_encoding: offsets.Encoding = .utf16,
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status: enum {
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/// the server has not received a `initialize` request
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uninitialized,
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/// the server has recieved a `initialize` request and is awaiting the `initialized` notification
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initializing,
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/// the server has been initialized and is ready to received requests
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initialized,
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/// the server has been shutdown and can't handle any more requests
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shutdown,
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},
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// Code was based off of https://github.com/andersfr/zig-lsp/blob/master/server.zig
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const ClientCapabilities = struct {
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supports_snippets: bool = false,
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supports_semantic_tokens: bool = false,
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supports_inlay_hints: bool = false,
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hover_supports_md: bool = false,
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completion_doc_supports_md: bool = false,
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label_details_support: bool = false,
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supports_configuration: bool = false,
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};
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const not_implemented_response =
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\\,"error":{"code":-32601,"message":"NotImplemented"}}
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;
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const null_result_response =
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\\,"result":null}
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;
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const empty_result_response =
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\\,"result":{}}
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;
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const empty_array_response =
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\\,"result":[]}
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;
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const edit_not_applied_response =
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\\,"result":{"applied":false,"failureReason":"feature not implemented"}}
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;
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const no_completions_response =
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\\,"result":{"isIncomplete":false,"items":[]}}
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;
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const no_signatures_response =
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\\,"result":{"signatures":[]}}
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;
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const no_semantic_tokens_response =
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\\,"result":{"data":[]}}
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;
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/// Sends a request or response
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fn send(writer: anytype, allocator: std.mem.Allocator, reqOrRes: anytype) !void {
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const tracy_zone = tracy.trace(@src());
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defer tracy_zone.end();
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var arr = std.ArrayListUnmanaged(u8){};
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defer arr.deinit(allocator);
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try std.json.stringify(reqOrRes, .{}, arr.writer(allocator));
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try writer.print("Content-Length: {}\r\n\r\n", .{arr.items.len});
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try writer.writeAll(arr.items);
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}
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pub fn sendErrorResponse(writer: anytype, allocator: std.mem.Allocator, code: types.ErrorCodes, message: []const u8) !void {
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try send(writer, allocator, .{
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.@"error" = types.ResponseError{
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.code = @enumToInt(code),
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.message = message,
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.data = .Null,
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},
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});
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}
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fn respondGeneric(writer: anytype, id: types.RequestId, response: []const u8) !void {
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var buffered_writer = std.io.bufferedWriter(writer);
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const buf_writer = buffered_writer.writer();
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const tracy_zone = tracy.trace(@src());
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defer tracy_zone.end();
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const id_len = switch (id) {
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.Integer => |id_val| blk: {
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if (id_val == 0) break :blk 1;
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var digits: usize = 1;
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var value = @divTrunc(id_val, 10);
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while (value != 0) : (value = @divTrunc(value, 10)) {
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digits += 1;
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}
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break :blk digits;
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},
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.String => |str_val| str_val.len + 2,
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};
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// Numbers of character that will be printed from this string: len - 1 brackets
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const json_fmt = "{{\"jsonrpc\":\"2.0\",\"id\":";
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try buf_writer.print("Content-Length: {}\r\n\r\n" ++ json_fmt, .{response.len + id_len + json_fmt.len - 1});
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switch (id) {
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.Integer => |int| try buf_writer.print("{}", .{int}),
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.String => |str| try buf_writer.print("\"{s}\"", .{str}),
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}
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try buf_writer.writeAll(response);
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try buffered_writer.flush();
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}
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fn showMessage(server: *Server, writer: anytype, message_type: types.MessageType, message: []const u8) !void {
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try send(writer, server.arena.allocator(), types.Notification{
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.method = "window/showMessage",
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.params = .{
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.ShowMessage = .{
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.type = message_type,
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.message = message,
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},
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},
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});
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}
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fn publishDiagnostics(server: *Server, writer: anytype, handle: DocumentStore.Handle) !void {
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const tracy_zone = tracy.trace(@src());
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defer tracy_zone.end();
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const tree = handle.tree;
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var allocator = server.arena.allocator();
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var diagnostics = std.ArrayListUnmanaged(types.Diagnostic){};
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for (tree.errors) |err| {
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var mem_buffer: [256]u8 = undefined;
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var fbs = std.io.fixedBufferStream(&mem_buffer);
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try tree.renderError(err, fbs.writer());
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try diagnostics.append(allocator, .{
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.range = offsets.tokenToRange(tree, err.token, server.offset_encoding),
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.severity = .Error,
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.code = @tagName(err.tag),
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.source = "zls",
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.message = try server.arena.allocator().dupe(u8, fbs.getWritten()),
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// .relatedInformation = undefined
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});
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}
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if (server.config.enable_ast_check_diagnostics and tree.errors.len == 0) {
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try getAstCheckDiagnostics(server, handle, &diagnostics);
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}
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if (server.config.warn_style) {
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var node: u32 = 0;
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while (node < tree.nodes.len) : (node += 1) {
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if (ast.isBuiltinCall(tree, node)) {
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const builtin_token = tree.nodes.items(.main_token)[node];
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const call_name = tree.tokenSlice(builtin_token);
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if (!std.mem.eql(u8, call_name, "@import")) continue;
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var buffer: [2]Ast.Node.Index = undefined;
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const params = ast.builtinCallParams(tree, node, &buffer).?;
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if (params.len != 1) continue;
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const import_str_token = tree.nodes.items(.main_token)[params[0]];
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const import_str = tree.tokenSlice(import_str_token);
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if (std.mem.startsWith(u8, import_str, "\"./")) {
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try diagnostics.append(allocator, .{
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.range = offsets.tokenToRange(tree, import_str_token, server.offset_encoding),
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.severity = .Hint,
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.code = "dot_slash_import",
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.source = "zls",
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.message = "A ./ is not needed in imports",
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});
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}
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}
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}
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// TODO: style warnings for types, values and declarations below root scope
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if (tree.errors.len == 0) {
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for (tree.rootDecls()) |decl_idx| {
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const decl = tree.nodes.items(.tag)[decl_idx];
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switch (decl) {
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.fn_proto,
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.fn_proto_multi,
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.fn_proto_one,
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.fn_proto_simple,
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.fn_decl,
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=> blk: {
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var buf: [1]Ast.Node.Index = undefined;
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const func = ast.fnProto(tree, decl_idx, &buf).?;
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if (func.extern_export_inline_token != null) break :blk;
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if (func.name_token) |name_token| {
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const is_type_function = analysis.isTypeFunction(tree, func);
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const func_name = tree.tokenSlice(name_token);
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if (!is_type_function and !analysis.isCamelCase(func_name)) {
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try diagnostics.append(allocator, .{
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.range = offsets.tokenToRange(tree, name_token, server.offset_encoding),
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.severity = .Hint,
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.code = "bad_style",
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.source = "zls",
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.message = "Functions should be camelCase",
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});
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} else if (is_type_function and !analysis.isPascalCase(func_name)) {
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try diagnostics.append(allocator, .{
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.range = offsets.tokenToRange(tree, name_token, server.offset_encoding),
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.severity = .Hint,
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.code = "bad_style",
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.source = "zls",
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.message = "Type functions should be PascalCase",
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});
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}
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}
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},
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else => {},
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}
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}
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}
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}
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for (handle.cimports.items(.hash)) |hash, i| {
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const result = server.document_store.cimports.get(hash) orelse continue;
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if (result != .failure) continue;
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const stderr = std.mem.trim(u8, result.failure, " ");
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var pos_and_diag_iterator = std.mem.split(u8, stderr, ":");
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_ = pos_and_diag_iterator.next(); // skip file path
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_ = pos_and_diag_iterator.next(); // skip line
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_ = pos_and_diag_iterator.next(); // skip character
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const node = handle.cimports.items(.node)[i];
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try diagnostics.append(allocator, .{
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.range = offsets.nodeToRange(handle.tree, node, server.offset_encoding),
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.severity = .Error,
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.code = "cImport",
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.source = "zls",
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.message = try allocator.dupe(u8, pos_and_diag_iterator.rest()),
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});
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}
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try send(writer, server.arena.allocator(), types.Notification{
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.method = "textDocument/publishDiagnostics",
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.params = .{
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.PublishDiagnostics = .{
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.uri = handle.uri,
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.diagnostics = diagnostics.items,
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},
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},
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});
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}
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fn getAstCheckDiagnostics(
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server: *Server,
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handle: DocumentStore.Handle,
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diagnostics: *std.ArrayListUnmanaged(types.Diagnostic),
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) !void {
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var allocator = server.arena.allocator();
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const zig_exe_path = server.config.zig_exe_path orelse return;
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var process = std.ChildProcess.init(&[_][]const u8{ zig_exe_path, "ast-check", "--color", "off" }, server.allocator);
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process.stdin_behavior = .Pipe;
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process.stderr_behavior = .Pipe;
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process.spawn() catch |err| {
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log.warn("Failed to spawn zig ast-check process, error: {}", .{err});
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return;
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};
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try process.stdin.?.writeAll(handle.text);
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process.stdin.?.close();
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process.stdin = null;
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const stderr_bytes = try process.stderr.?.reader().readAllAlloc(server.allocator, std.math.maxInt(usize));
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defer server.allocator.free(stderr_bytes);
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const term = process.wait() catch |err| {
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log.warn("Failed to await zig ast-check process, error: {}", .{err});
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return;
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};
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if (term != .Exited) return;
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// NOTE: I believe that with color off it's one diag per line; is this correct?
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var line_iterator = std.mem.split(u8, stderr_bytes, "\n");
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while (line_iterator.next()) |line| lin: {
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var pos_and_diag_iterator = std.mem.split(u8, line, ":");
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const maybe_first = pos_and_diag_iterator.next();
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if (maybe_first) |first| {
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if (first.len <= 1) break :lin;
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} else break;
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const utf8_position = types.Position{
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.line = (try std.fmt.parseInt(u32, pos_and_diag_iterator.next().?, 10)) - 1,
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.character = (try std.fmt.parseInt(u32, pos_and_diag_iterator.next().?, 10)) - 1,
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};
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// zig uses utf-8 encoding for character offsets
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const position = offsets.convertPositionEncoding(handle.text, utf8_position, .utf8, server.offset_encoding);
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const range = offsets.tokenPositionToRange(handle.text, position, server.offset_encoding);
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const msg = pos_and_diag_iterator.rest()[1..];
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if (std.mem.startsWith(u8, msg, "error: ")) {
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try diagnostics.append(allocator, .{
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.range = range,
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.severity = .Error,
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.code = "ast_check",
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.source = "zls",
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.message = try server.arena.allocator().dupe(u8, msg["error: ".len..]),
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});
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} else if (std.mem.startsWith(u8, msg, "note: ")) {
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var latestDiag = &diagnostics.items[diagnostics.items.len - 1];
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var fresh = if (latestDiag.relatedInformation) |related_information|
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try server.arena.allocator().realloc(@ptrCast([]types.DiagnosticRelatedInformation, related_information), related_information.len + 1)
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else
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try server.arena.allocator().alloc(types.DiagnosticRelatedInformation, 1);
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const location = types.Location{
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.uri = handle.uri,
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.range = range,
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};
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fresh[fresh.len - 1] = .{
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.location = location,
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.message = try server.arena.allocator().dupe(u8, msg["note: ".len..]),
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};
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latestDiag.relatedInformation = fresh;
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} else {
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try diagnostics.append(allocator, .{
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.range = range,
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.severity = .Error,
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.code = "ast_check",
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.source = "zls",
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.message = try server.arena.allocator().dupe(u8, msg),
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});
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}
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}
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}
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fn typeToCompletion(
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server: *Server,
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list: *std.ArrayListUnmanaged(types.CompletionItem),
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field_access: analysis.FieldAccessReturn,
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orig_handle: *const DocumentStore.Handle,
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) error{OutOfMemory}!void {
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var allocator = server.arena.allocator();
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const tracy_zone = tracy.trace(@src());
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defer tracy_zone.end();
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const type_handle = field_access.original;
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switch (type_handle.type.data) {
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.slice => {
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if (!type_handle.type.is_type_val) {
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try list.append(allocator, .{
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.label = "len",
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.detail = "const len: usize",
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.kind = .Field,
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.insertText = "len",
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.insertTextFormat = .PlainText,
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});
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try list.append(allocator, .{
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.label = "ptr",
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.kind = .Field,
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.insertText = "ptr",
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.insertTextFormat = .PlainText,
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});
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}
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},
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.error_union => {},
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.pointer => |n| {
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if (server.config.operator_completions) {
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try list.append(allocator, .{
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.label = "*",
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.kind = .Operator,
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.insertText = "*",
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.insertTextFormat = .PlainText,
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});
|
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}
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try server.nodeToCompletion(
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list,
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.{ .node = n, .handle = type_handle.handle },
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null,
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orig_handle,
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type_handle.type.is_type_val,
|
|
null,
|
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);
|
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},
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.other => |n| try server.nodeToCompletion(
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list,
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.{ .node = n, .handle = type_handle.handle },
|
|
field_access.unwrapped,
|
|
orig_handle,
|
|
type_handle.type.is_type_val,
|
|
null,
|
|
),
|
|
.primitive, .array_index => {},
|
|
}
|
|
}
|
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|
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fn nodeToCompletion(
|
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server: *Server,
|
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list: *std.ArrayListUnmanaged(types.CompletionItem),
|
|
node_handle: analysis.NodeWithHandle,
|
|
unwrapped: ?analysis.TypeWithHandle,
|
|
orig_handle: *const DocumentStore.Handle,
|
|
is_type_val: bool,
|
|
parent_is_type_val: ?bool,
|
|
) error{OutOfMemory}!void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
var allocator = server.arena.allocator();
|
|
|
|
const node = node_handle.node;
|
|
const handle = node_handle.handle;
|
|
const tree = handle.tree;
|
|
const node_tags = tree.nodes.items(.tag);
|
|
const token_tags = tree.tokens.items(.tag);
|
|
|
|
const doc_kind: types.MarkupContent.Kind = if (server.client_capabilities.completion_doc_supports_md)
|
|
.Markdown
|
|
else
|
|
.PlainText;
|
|
|
|
const doc = if (try analysis.getDocComments(
|
|
allocator,
|
|
handle.tree,
|
|
node,
|
|
doc_kind,
|
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)) |doc_comments|
|
|
types.MarkupContent{
|
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.kind = doc_kind,
|
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.value = doc_comments,
|
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}
|
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else
|
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null;
|
|
|
|
if (ast.isContainer(handle.tree, node)) {
|
|
const context = DeclToCompletionContext{
|
|
.server = server,
|
|
.completions = list,
|
|
.orig_handle = orig_handle,
|
|
.parent_is_type_val = is_type_val,
|
|
};
|
|
try analysis.iterateSymbolsContainer(
|
|
&server.document_store,
|
|
&server.arena,
|
|
node_handle,
|
|
orig_handle,
|
|
declToCompletion,
|
|
context,
|
|
!is_type_val,
|
|
);
|
|
}
|
|
|
|
if (is_type_val) return;
|
|
|
|
switch (node_tags[node]) {
|
|
.fn_proto,
|
|
.fn_proto_multi,
|
|
.fn_proto_one,
|
|
.fn_proto_simple,
|
|
.fn_decl,
|
|
=> {
|
|
var buf: [1]Ast.Node.Index = undefined;
|
|
const func = ast.fnProto(tree, node, &buf).?;
|
|
if (func.name_token) |name_token| {
|
|
const use_snippets = server.config.enable_snippets and server.client_capabilities.supports_snippets;
|
|
const insert_text = if (use_snippets) blk: {
|
|
const skip_self_param = !(parent_is_type_val orelse true) and
|
|
try analysis.hasSelfParam(&server.arena, &server.document_store, handle, func);
|
|
break :blk try analysis.getFunctionSnippet(server.arena.allocator(), tree, func, skip_self_param);
|
|
} else tree.tokenSlice(func.name_token.?);
|
|
|
|
const is_type_function = analysis.isTypeFunction(handle.tree, func);
|
|
|
|
try list.append(allocator, .{
|
|
.label = handle.tree.tokenSlice(name_token),
|
|
.kind = if (is_type_function) .Struct else .Function,
|
|
.documentation = doc,
|
|
.detail = analysis.getFunctionSignature(handle.tree, func),
|
|
.insertText = insert_text,
|
|
.insertTextFormat = if (use_snippets) .Snippet else .PlainText,
|
|
});
|
|
}
|
|
},
|
|
.global_var_decl,
|
|
.local_var_decl,
|
|
.aligned_var_decl,
|
|
.simple_var_decl,
|
|
=> {
|
|
const var_decl = ast.varDecl(tree, node).?;
|
|
const is_const = token_tags[var_decl.ast.mut_token] == .keyword_const;
|
|
|
|
if (try analysis.resolveVarDeclAlias(&server.document_store, &server.arena, node_handle)) |result| {
|
|
const context = DeclToCompletionContext{
|
|
.server = server,
|
|
.completions = list,
|
|
.orig_handle = orig_handle,
|
|
};
|
|
return try declToCompletion(context, result);
|
|
}
|
|
|
|
try list.append(allocator, .{
|
|
.label = handle.tree.tokenSlice(var_decl.ast.mut_token + 1),
|
|
.kind = if (is_const) .Constant else .Variable,
|
|
.documentation = doc,
|
|
.detail = analysis.getVariableSignature(tree, var_decl),
|
|
.insertText = tree.tokenSlice(var_decl.ast.mut_token + 1),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.container_field,
|
|
.container_field_align,
|
|
.container_field_init,
|
|
=> {
|
|
const field = ast.containerField(tree, node).?;
|
|
try list.append(allocator, .{
|
|
.label = handle.tree.tokenSlice(field.ast.name_token),
|
|
.kind = .Field,
|
|
.documentation = doc,
|
|
.detail = analysis.getContainerFieldSignature(handle.tree, field),
|
|
.insertText = tree.tokenSlice(field.ast.name_token),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.array_type,
|
|
.array_type_sentinel,
|
|
=> {
|
|
try list.append(allocator, .{
|
|
.label = "len",
|
|
.detail = "const len: usize",
|
|
.kind = .Field,
|
|
.insertText = "len",
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.ptr_type,
|
|
.ptr_type_aligned,
|
|
.ptr_type_bit_range,
|
|
.ptr_type_sentinel,
|
|
=> {
|
|
const ptr_type = ast.ptrType(tree, node).?;
|
|
|
|
switch (ptr_type.size) {
|
|
.One, .C, .Many => if (server.config.operator_completions) {
|
|
try list.append(allocator, .{
|
|
.label = "*",
|
|
.kind = .Operator,
|
|
.insertText = "*",
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.Slice => {
|
|
try list.append(allocator, .{
|
|
.label = "ptr",
|
|
.kind = .Field,
|
|
.insertText = "ptr",
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
try list.append(allocator, .{
|
|
.label = "len",
|
|
.detail = "const len: usize",
|
|
.kind = .Field,
|
|
.insertText = "len",
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
return;
|
|
},
|
|
}
|
|
|
|
if (unwrapped) |actual_type| {
|
|
try server.typeToCompletion(list, .{ .original = actual_type }, orig_handle);
|
|
}
|
|
return;
|
|
},
|
|
.optional_type => {
|
|
if (server.config.operator_completions) {
|
|
try list.append(allocator, .{
|
|
.label = "?",
|
|
.kind = .Operator,
|
|
.insertText = "?",
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
}
|
|
return;
|
|
},
|
|
.string_literal => {
|
|
try list.append(allocator, .{
|
|
.label = "len",
|
|
.detail = "const len: usize",
|
|
.kind = .Field,
|
|
.insertText = "len",
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
else => if (analysis.nodeToString(tree, node)) |string| {
|
|
try list.append(allocator, .{
|
|
.label = string,
|
|
.kind = .Field,
|
|
.documentation = doc,
|
|
.detail = offsets.nodeToSlice(tree, node),
|
|
.insertText = string,
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
}
|
|
}
|
|
|
|
pub fn identifierFromPosition(pos_index: usize, handle: DocumentStore.Handle) []const u8 {
|
|
if (pos_index + 1 >= handle.text.len) return "";
|
|
var start_idx = pos_index;
|
|
|
|
while (start_idx > 0 and isSymbolChar(handle.text[start_idx - 1])) {
|
|
start_idx -= 1;
|
|
}
|
|
|
|
var end_idx = pos_index;
|
|
while (end_idx < handle.text.len and isSymbolChar(handle.text[end_idx])) {
|
|
end_idx += 1;
|
|
}
|
|
|
|
if (end_idx <= start_idx) return "";
|
|
return handle.text[start_idx..end_idx];
|
|
}
|
|
|
|
fn isSymbolChar(char: u8) bool {
|
|
return std.ascii.isAlNum(char) or char == '_';
|
|
}
|
|
|
|
fn gotoDefinitionSymbol(
|
|
server: *Server,
|
|
decl_handle: analysis.DeclWithHandle,
|
|
resolve_alias: bool,
|
|
) error{OutOfMemory}!?types.Location {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
var handle = decl_handle.handle;
|
|
|
|
const name_token = switch (decl_handle.decl.*) {
|
|
.ast_node => |node| block: {
|
|
if (resolve_alias) {
|
|
if (try analysis.resolveVarDeclAlias(&server.document_store, &server.arena, .{ .node = node, .handle = handle })) |result| {
|
|
handle = result.handle;
|
|
|
|
break :block result.nameToken();
|
|
}
|
|
}
|
|
|
|
break :block analysis.getDeclNameToken(handle.tree, node) orelse return null;
|
|
},
|
|
else => decl_handle.nameToken(),
|
|
};
|
|
|
|
return types.Location{
|
|
.uri = handle.uri,
|
|
.range = offsets.tokenToRange(handle.tree, name_token, server.offset_encoding),
|
|
};
|
|
}
|
|
|
|
fn hoverSymbol(server: *Server, decl_handle: analysis.DeclWithHandle) error{OutOfMemory}!?types.Hover {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const handle = decl_handle.handle;
|
|
const tree = handle.tree;
|
|
|
|
const hover_kind: types.MarkupContent.Kind = if (server.client_capabilities.hover_supports_md) .Markdown else .PlainText;
|
|
var doc_str: ?[]const u8 = null;
|
|
|
|
const def_str = switch (decl_handle.decl.*) {
|
|
.ast_node => |node| def: {
|
|
if (try analysis.resolveVarDeclAlias(&server.document_store, &server.arena, .{ .node = node, .handle = handle })) |result| {
|
|
return try server.hoverSymbol(result);
|
|
}
|
|
doc_str = try analysis.getDocComments(server.arena.allocator(), tree, node, hover_kind);
|
|
|
|
var buf: [1]Ast.Node.Index = undefined;
|
|
|
|
if (ast.varDecl(tree, node)) |var_decl| {
|
|
break :def analysis.getVariableSignature(tree, var_decl);
|
|
} else if (ast.fnProto(tree, node, &buf)) |fn_proto| {
|
|
break :def analysis.getFunctionSignature(tree, fn_proto);
|
|
} else if (ast.containerField(tree, node)) |field| {
|
|
break :def analysis.getContainerFieldSignature(tree, field);
|
|
} else {
|
|
break :def analysis.nodeToString(tree, node) orelse return null;
|
|
}
|
|
},
|
|
.param_payload => |pay| def: {
|
|
const param = pay.param;
|
|
if (param.first_doc_comment) |doc_comments| {
|
|
doc_str = try analysis.collectDocComments(server.arena.allocator(), handle.tree, doc_comments, hover_kind, false);
|
|
}
|
|
|
|
const first_token = ast.paramFirstToken(tree, param);
|
|
const last_token = ast.paramLastToken(tree, param);
|
|
|
|
const start = offsets.tokenToIndex(tree, first_token);
|
|
const end = offsets.tokenToLoc(tree, last_token).end;
|
|
break :def tree.source[start..end];
|
|
},
|
|
.pointer_payload => |payload| tree.tokenSlice(payload.name),
|
|
.array_payload => |payload| handle.tree.tokenSlice(payload.identifier),
|
|
.array_index => |payload| handle.tree.tokenSlice(payload),
|
|
.switch_payload => |payload| tree.tokenSlice(payload.node),
|
|
.label_decl => |label_decl| tree.tokenSlice(label_decl),
|
|
};
|
|
|
|
var bound_type_params = analysis.BoundTypeParams{};
|
|
const resolved_type = try decl_handle.resolveType(&server.document_store, &server.arena, &bound_type_params);
|
|
|
|
const resolved_type_str = if (resolved_type) |rt|
|
|
if (rt.type.is_type_val) "type" else switch (rt.type.data) { // TODO: Investigate random weird numbers like 897 that cause index of bounds
|
|
.pointer,
|
|
.slice,
|
|
.error_union,
|
|
.primitive,
|
|
=> |p| if (p >= tree.nodes.len) "unknown" else offsets.nodeToSlice(tree, p),
|
|
.other => |p| if (p >= tree.nodes.len) "unknown" else switch (tree.nodes.items(.tag)[p]) {
|
|
.container_decl,
|
|
.container_decl_arg,
|
|
.container_decl_arg_trailing,
|
|
.container_decl_trailing,
|
|
.container_decl_two,
|
|
.container_decl_two_trailing,
|
|
.tagged_union,
|
|
.tagged_union_trailing,
|
|
.tagged_union_two,
|
|
.tagged_union_two_trailing,
|
|
.tagged_union_enum_tag,
|
|
.tagged_union_enum_tag_trailing,
|
|
=> tree.tokenSlice(tree.nodes.items(.main_token)[p] - 2), // NOTE: This is a hacky nightmare but it works :P
|
|
.fn_proto,
|
|
.fn_proto_multi,
|
|
.fn_proto_one,
|
|
.fn_proto_simple,
|
|
.fn_decl,
|
|
=> "fn", // TODO:(?) Add more info?
|
|
.array_type,
|
|
.array_type_sentinel,
|
|
.ptr_type,
|
|
.ptr_type_aligned,
|
|
.ptr_type_bit_range,
|
|
.ptr_type_sentinel,
|
|
=> offsets.nodeToSlice(tree, p),
|
|
else => "unknown", // TODO: Implement more "other" type expressions; better safe than sorry
|
|
},
|
|
else => "unknown",
|
|
}
|
|
else
|
|
"unknown";
|
|
|
|
var hover_text: []const u8 = undefined;
|
|
if (hover_kind == .Markdown) {
|
|
hover_text =
|
|
if (doc_str) |doc|
|
|
try std.fmt.allocPrint(server.arena.allocator(), "```zig\n{s}\n```\n```zig\n({s})\n```\n{s}", .{ def_str, resolved_type_str, doc })
|
|
else
|
|
try std.fmt.allocPrint(server.arena.allocator(), "```zig\n{s}\n```\n```zig\n({s})\n```", .{ def_str, resolved_type_str });
|
|
} else {
|
|
hover_text =
|
|
if (doc_str) |doc|
|
|
try std.fmt.allocPrint(server.arena.allocator(), "{s} ({s})\n{s}", .{ def_str, resolved_type_str, doc })
|
|
else
|
|
try std.fmt.allocPrint(server.arena.allocator(), "{s} ({s})", .{ def_str, resolved_type_str });
|
|
}
|
|
|
|
return types.Hover{
|
|
.contents = .{ .value = hover_text },
|
|
};
|
|
}
|
|
|
|
fn getLabelGlobal(pos_index: usize, handle: *const DocumentStore.Handle) error{OutOfMemory}!?analysis.DeclWithHandle {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const name = identifierFromPosition(pos_index, handle.*);
|
|
if (name.len == 0) return null;
|
|
|
|
return try analysis.lookupLabel(handle, name, pos_index);
|
|
}
|
|
|
|
fn getSymbolGlobal(
|
|
server: *Server,
|
|
pos_index: usize,
|
|
handle: *const DocumentStore.Handle,
|
|
) error{OutOfMemory}!?analysis.DeclWithHandle {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const name = identifierFromPosition(pos_index, handle.*);
|
|
if (name.len == 0) return null;
|
|
|
|
return try analysis.lookupSymbolGlobal(&server.document_store, &server.arena, handle, name, pos_index);
|
|
}
|
|
|
|
fn gotoDefinitionLabel(
|
|
server: *Server,
|
|
pos_index: usize,
|
|
handle: *const DocumentStore.Handle,
|
|
) error{OutOfMemory}!?types.Location {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const decl = (try getLabelGlobal(pos_index, handle)) orelse return null;
|
|
return try server.gotoDefinitionSymbol(decl, false);
|
|
}
|
|
|
|
fn gotoDefinitionGlobal(
|
|
server: *Server,
|
|
pos_index: usize,
|
|
handle: *const DocumentStore.Handle,
|
|
resolve_alias: bool,
|
|
) error{OutOfMemory}!?types.Location {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const decl = (try server.getSymbolGlobal(pos_index, handle)) orelse return null;
|
|
return try server.gotoDefinitionSymbol(decl, resolve_alias);
|
|
}
|
|
|
|
fn hoverDefinitionLabel(server: *Server, pos_index: usize, handle: *const DocumentStore.Handle) error{OutOfMemory}!?types.Hover {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const decl = (try getLabelGlobal(pos_index, handle)) orelse return null;
|
|
return try server.hoverSymbol(decl);
|
|
}
|
|
|
|
fn hoverDefinitionBuiltin(server: *Server, pos_index: usize, handle: *const DocumentStore.Handle) error{OutOfMemory}!?types.Hover {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const name = identifierFromPosition(pos_index, handle.*);
|
|
if (name.len == 0) return null;
|
|
|
|
for (data.builtins) |builtin| {
|
|
if (std.mem.eql(u8, builtin.name[1..], name)) {
|
|
return types.Hover{
|
|
.contents = .{
|
|
.value = try std.fmt.allocPrint(
|
|
server.arena.allocator(),
|
|
"```zig\n{s}\n```\n{s}",
|
|
.{ builtin.signature, builtin.documentation },
|
|
),
|
|
},
|
|
};
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
fn hoverDefinitionGlobal(server: *Server, pos_index: usize, handle: *const DocumentStore.Handle) error{OutOfMemory}!?types.Hover {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const decl = (try server.getSymbolGlobal(pos_index, handle)) orelse return null;
|
|
return try server.hoverSymbol(decl);
|
|
}
|
|
|
|
fn getSymbolFieldAccess(
|
|
server: *Server,
|
|
handle: *const DocumentStore.Handle,
|
|
source_index: usize,
|
|
loc: offsets.Loc,
|
|
) !?analysis.DeclWithHandle {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const name = identifierFromPosition(source_index, handle.*);
|
|
if (name.len == 0) return null;
|
|
|
|
var held_range = try server.arena.allocator().dupeZ(u8, offsets.locToSlice(handle.text, loc));
|
|
var tokenizer = std.zig.Tokenizer.init(held_range);
|
|
|
|
if (try analysis.getFieldAccessType(&server.document_store, &server.arena, handle, source_index, &tokenizer)) |result| {
|
|
const container_handle = result.unwrapped orelse result.original;
|
|
const container_handle_node = switch (container_handle.type.data) {
|
|
.other => |n| n,
|
|
else => return null,
|
|
};
|
|
return try analysis.lookupSymbolContainer(
|
|
&server.document_store,
|
|
&server.arena,
|
|
.{ .node = container_handle_node, .handle = container_handle.handle },
|
|
name,
|
|
true,
|
|
);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
fn gotoDefinitionFieldAccess(
|
|
server: *Server,
|
|
handle: *const DocumentStore.Handle,
|
|
source_index: usize,
|
|
loc: offsets.Loc,
|
|
resolve_alias: bool,
|
|
) error{OutOfMemory}!?types.Location {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const decl = (try server.getSymbolFieldAccess(handle, source_index, loc)) orelse return null;
|
|
return try server.gotoDefinitionSymbol(decl, resolve_alias);
|
|
}
|
|
|
|
fn hoverDefinitionFieldAccess(
|
|
server: *Server,
|
|
handle: *const DocumentStore.Handle,
|
|
source_index: usize,
|
|
loc: offsets.Loc,
|
|
) error{OutOfMemory}!?types.Hover {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const decl = (try server.getSymbolFieldAccess(handle, source_index, loc)) orelse return null;
|
|
return try server.hoverSymbol(decl);
|
|
}
|
|
|
|
fn gotoDefinitionString(
|
|
server: *Server,
|
|
pos_index: usize,
|
|
handle: *const DocumentStore.Handle,
|
|
) error{OutOfMemory}!?types.Location {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const import_str = analysis.getImportStr(handle.tree, 0, pos_index) orelse return null;
|
|
const uri = try server.document_store.uriFromImportStr(server.arena.allocator(), handle.*, import_str);
|
|
|
|
return types.Location{
|
|
.uri = uri orelse return null,
|
|
.range = .{
|
|
.start = .{ .line = 0, .character = 0 },
|
|
.end = .{ .line = 0, .character = 0 },
|
|
},
|
|
};
|
|
}
|
|
|
|
const DeclToCompletionContext = struct {
|
|
server: *Server,
|
|
completions: *std.ArrayListUnmanaged(types.CompletionItem),
|
|
orig_handle: *const DocumentStore.Handle,
|
|
parent_is_type_val: ?bool = null,
|
|
};
|
|
|
|
fn declToCompletion(context: DeclToCompletionContext, decl_handle: analysis.DeclWithHandle) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
var allocator = context.server.arena.allocator();
|
|
|
|
const tree = decl_handle.handle.tree;
|
|
switch (decl_handle.decl.*) {
|
|
.ast_node => |node| try context.server.nodeToCompletion(
|
|
context.completions,
|
|
.{ .node = node, .handle = decl_handle.handle },
|
|
null,
|
|
context.orig_handle,
|
|
false,
|
|
context.parent_is_type_val,
|
|
),
|
|
.param_payload => |pay| {
|
|
const param = pay.param;
|
|
const doc_kind: types.MarkupContent.Kind = if (context.server.client_capabilities.completion_doc_supports_md) .Markdown else .PlainText;
|
|
const doc = if (param.first_doc_comment) |doc_comments|
|
|
types.MarkupContent{
|
|
.kind = doc_kind,
|
|
.value = try analysis.collectDocComments(allocator, tree, doc_comments, doc_kind, false),
|
|
}
|
|
else
|
|
null;
|
|
|
|
const first_token = ast.paramFirstToken(tree, param);
|
|
const last_token = ast.paramLastToken(tree, param);
|
|
|
|
try context.completions.append(allocator, .{
|
|
.label = tree.tokenSlice(param.name_token.?),
|
|
.kind = .Constant,
|
|
.documentation = doc,
|
|
.detail = tree.source[offsets.tokenToIndex(tree, first_token)..offsets.tokenToLoc(tree, last_token).end],
|
|
.insertText = tree.tokenSlice(param.name_token.?),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.pointer_payload => |payload| {
|
|
try context.completions.append(allocator, .{
|
|
.label = tree.tokenSlice(payload.name),
|
|
.kind = .Variable,
|
|
.insertText = tree.tokenSlice(payload.name),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.array_payload => |payload| {
|
|
try context.completions.append(allocator, .{
|
|
.label = tree.tokenSlice(payload.identifier),
|
|
.kind = .Variable,
|
|
.insertText = tree.tokenSlice(payload.identifier),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.array_index => |payload| {
|
|
try context.completions.append(allocator, .{
|
|
.label = tree.tokenSlice(payload),
|
|
.kind = .Variable,
|
|
.insertText = tree.tokenSlice(payload),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.switch_payload => |payload| {
|
|
try context.completions.append(allocator, .{
|
|
.label = tree.tokenSlice(payload.node),
|
|
.kind = .Variable,
|
|
.insertText = tree.tokenSlice(payload.node),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
.label_decl => |label_decl| {
|
|
try context.completions.append(allocator, .{
|
|
.label = tree.tokenSlice(label_decl),
|
|
.kind = .Variable,
|
|
.insertText = tree.tokenSlice(label_decl),
|
|
.insertTextFormat = .PlainText,
|
|
});
|
|
},
|
|
}
|
|
}
|
|
|
|
fn completeLabel(
|
|
server: *Server,
|
|
pos_index: usize,
|
|
handle: *const DocumentStore.Handle,
|
|
) ![]types.CompletionItem {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
var completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
|
|
const context = DeclToCompletionContext{
|
|
.server = server,
|
|
.completions = &completions,
|
|
.orig_handle = handle,
|
|
};
|
|
try analysis.iterateLabels(handle, pos_index, declToCompletion, context);
|
|
|
|
return completions.toOwnedSlice(server.arena.allocator());
|
|
}
|
|
|
|
fn populateSnippedCompletions(
|
|
allocator: std.mem.Allocator,
|
|
completions: *std.ArrayListUnmanaged(types.CompletionItem),
|
|
snippets: []const snipped_data.Snipped,
|
|
config: Config,
|
|
start_with: ?[]const u8,
|
|
) error{OutOfMemory}!void {
|
|
try completions.ensureUnusedCapacity(allocator, snippets.len);
|
|
|
|
for (snippets) |snipped| {
|
|
if (start_with) |needle| {
|
|
if (!std.mem.startsWith(u8, snipped.label, needle)) continue;
|
|
}
|
|
|
|
completions.appendAssumeCapacity(.{
|
|
.label = snipped.label,
|
|
.kind = snipped.kind,
|
|
.detail = if (config.enable_snippets) snipped.text else null,
|
|
.insertText = if (config.enable_snippets) snipped.text else null,
|
|
.insertTextFormat = if (config.enable_snippets and snipped.text != null) .Snippet else .PlainText,
|
|
});
|
|
}
|
|
}
|
|
|
|
fn completeGlobal(server: *Server, pos_index: usize, handle: *const DocumentStore.Handle) ![]types.CompletionItem {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
var completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
|
|
const context = DeclToCompletionContext{
|
|
.server = server,
|
|
.completions = &completions,
|
|
.orig_handle = handle,
|
|
};
|
|
try analysis.iterateSymbolsGlobal(&server.document_store, &server.arena, handle, pos_index, declToCompletion, context);
|
|
try populateSnippedCompletions(server.arena.allocator(), &completions, &snipped_data.generic, server.config.*, null);
|
|
|
|
if (server.client_capabilities.label_details_support) {
|
|
for (completions.items) |*item| {
|
|
try formatDetailledLabel(item, server.arena.allocator());
|
|
}
|
|
}
|
|
|
|
return completions.toOwnedSlice(server.arena.allocator());
|
|
}
|
|
|
|
fn completeFieldAccess(server: *Server, handle: *const DocumentStore.Handle, source_index: usize, loc: offsets.Loc) !?[]types.CompletionItem {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const allocator = server.arena.allocator();
|
|
|
|
var completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
|
|
var held_loc = try allocator.dupeZ(u8, offsets.locToSlice(handle.text, loc));
|
|
var tokenizer = std.zig.Tokenizer.init(held_loc);
|
|
|
|
const result = (try analysis.getFieldAccessType(&server.document_store, &server.arena, handle, source_index, &tokenizer)) orelse return null;
|
|
try server.typeToCompletion(&completions, result, handle);
|
|
if (server.client_capabilities.label_details_support) {
|
|
for (completions.items) |*item| {
|
|
try formatDetailledLabel(item, allocator);
|
|
}
|
|
}
|
|
|
|
return completions.toOwnedSlice(allocator);
|
|
}
|
|
|
|
fn formatDetailledLabel(item: *types.CompletionItem, alloc: std.mem.Allocator) !void {
|
|
// NOTE: this is not ideal, we should build a detailled label like we do for label/detail
|
|
// because this implementation is very loose, nothing is formated properly so we need to clean
|
|
// things a little bit, wich is quite messy
|
|
// but it works, it provide decent results
|
|
|
|
if (item.detail == null)
|
|
return;
|
|
|
|
var detailLen: usize = item.detail.?.len;
|
|
var it: []u8 = try alloc.alloc(u8, detailLen);
|
|
|
|
detailLen -= std.mem.replace(u8, item.detail.?, " ", " ", it) * 3;
|
|
it = it[0..detailLen];
|
|
|
|
// HACK: for enums 'MyEnum.', item.detail shows everything, we don't want that
|
|
const isValue = std.mem.startsWith(u8, item.label, it);
|
|
|
|
const isVar = std.mem.startsWith(u8, it, "var ");
|
|
const isConst = std.mem.startsWith(u8, it, "const ");
|
|
|
|
// we don't want the entire content of things, see the NOTE above
|
|
if (std.mem.indexOf(u8, it, "{")) |end| {
|
|
it = it[0..end];
|
|
}
|
|
if (std.mem.indexOf(u8, it, "}")) |end| {
|
|
it = it[0..end];
|
|
}
|
|
if (std.mem.indexOf(u8, it, ";")) |end| {
|
|
it = it[0..end];
|
|
}
|
|
|
|
// loggerger.info("## label: {s} it: {s} kind: {} isValue: {}", .{item.label, it, item.kind, isValue});
|
|
|
|
if (std.mem.startsWith(u8, it, "fn ")) {
|
|
var s: usize = std.mem.indexOf(u8, it, "(") orelse return;
|
|
var e: usize = std.mem.lastIndexOf(u8, it, ")") orelse return;
|
|
if (e < s) {
|
|
log.warn("something wrong when trying to build label detail for {s} kind: {}", .{ it, item.kind });
|
|
return;
|
|
}
|
|
|
|
item.detail = item.label;
|
|
item.labelDetails = .{ .detail = it[s .. e + 1], .description = it[e + 1 ..] };
|
|
|
|
if (item.kind == .Constant) {
|
|
if (std.mem.indexOf(u8, it, "= struct")) |_| {
|
|
item.labelDetails.?.description = "struct";
|
|
} else if (std.mem.indexOf(u8, it, "= union")) |_| {
|
|
var us: usize = std.mem.indexOf(u8, it, "(") orelse return;
|
|
var ue: usize = std.mem.lastIndexOf(u8, it, ")") orelse return;
|
|
if (ue < us) {
|
|
log.warn("something wrong when trying to build label detail for a .Constant|union {s}", .{it});
|
|
return;
|
|
}
|
|
|
|
item.labelDetails.?.description = it[us - 5 .. ue + 1];
|
|
}
|
|
}
|
|
} else if ((item.kind == .Variable or item.kind == .Constant) and (isVar or isConst)) {
|
|
item.insertText = item.label;
|
|
item.insertTextFormat = .PlainText;
|
|
item.detail = item.label;
|
|
|
|
const eqlPos = std.mem.indexOf(u8, it, "=");
|
|
|
|
if (std.mem.indexOf(u8, it, ":")) |start| {
|
|
if (eqlPos != null) {
|
|
if (start > eqlPos.?) return;
|
|
}
|
|
var e: usize = eqlPos orelse it.len;
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = it[start + 1 .. e], // right
|
|
};
|
|
} else if (std.mem.indexOf(u8, it, "= .")) |start| {
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = it[start + 2 .. it.len], // right
|
|
};
|
|
} else if (eqlPos) |start| {
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = it[start + 2 .. it.len], // right
|
|
};
|
|
}
|
|
} else if (item.kind == .Variable) {
|
|
var s: usize = std.mem.indexOf(u8, it, ":") orelse return;
|
|
var e: usize = std.mem.indexOf(u8, it, "=") orelse return;
|
|
|
|
if (e < s) {
|
|
log.warn("something wrong when trying to build label detail for a .Variable {s}", .{it});
|
|
return;
|
|
}
|
|
// loggerger.info("s: {} -> {}", .{s, e});
|
|
item.insertText = item.label;
|
|
item.insertTextFormat = .PlainText;
|
|
item.detail = item.label;
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = it[s + 1 .. e], // right
|
|
};
|
|
} else if (std.mem.indexOf(u8, it, "@import") != null) {
|
|
item.insertText = item.label;
|
|
item.insertTextFormat = .PlainText;
|
|
item.detail = item.label;
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = it, // right
|
|
};
|
|
} else if (item.kind == .Constant or item.kind == .Field) {
|
|
var s: usize = std.mem.indexOf(u8, it, " ") orelse return;
|
|
var e: usize = std.mem.indexOf(u8, it, "=") orelse it.len;
|
|
if (e < s) {
|
|
log.warn("something wrong when trying to build label detail for a .Variable {s}", .{it});
|
|
return;
|
|
}
|
|
// loggerger.info("s: {} -> {}", .{s, e});
|
|
item.insertText = item.label;
|
|
item.insertTextFormat = .PlainText;
|
|
item.detail = item.label;
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = it[s + 1 .. e], // right
|
|
};
|
|
|
|
if (std.mem.indexOf(u8, it, "= union(")) |_| {
|
|
var us: usize = std.mem.indexOf(u8, it, "(") orelse return;
|
|
var ue: usize = std.mem.lastIndexOf(u8, it, ")") orelse return;
|
|
if (ue < us) {
|
|
log.warn("something wrong when trying to build label detail for a .Constant|union {s}", .{it});
|
|
return;
|
|
}
|
|
item.labelDetails.?.description = it[us - 5 .. ue + 1];
|
|
} else if (std.mem.indexOf(u8, it, "= enum(")) |_| {
|
|
var es: usize = std.mem.indexOf(u8, it, "(") orelse return;
|
|
var ee: usize = std.mem.lastIndexOf(u8, it, ")") orelse return;
|
|
if (ee < es) {
|
|
log.warn("something wrong when trying to build label detail for a .Constant|enum {s}", .{it});
|
|
return;
|
|
}
|
|
item.labelDetails.?.description = it[es - 4 .. ee + 1];
|
|
} else if (std.mem.indexOf(u8, it, "= struct")) |_| {
|
|
item.labelDetails.?.description = "struct";
|
|
} else if (std.mem.indexOf(u8, it, "= union")) |_| {
|
|
item.labelDetails.?.description = "union";
|
|
} else if (std.mem.indexOf(u8, it, "= enum")) |_| {
|
|
item.labelDetails.?.description = "enum";
|
|
}
|
|
} else if (item.kind == .Field and isValue) {
|
|
item.insertText = item.label;
|
|
item.insertTextFormat = .PlainText;
|
|
item.detail = item.label;
|
|
item.labelDetails = .{
|
|
.detail = "", // left
|
|
.description = item.label, // right
|
|
};
|
|
} else {
|
|
// TODO: if something is missing, it neecs to be implemented here
|
|
}
|
|
|
|
// if (item.labelDetails != null)
|
|
// logger.info("labelDetails: {s} :: {s}", .{item.labelDetails.?.detail, item.labelDetails.?.description});
|
|
}
|
|
|
|
fn completeError(server: *Server, handle: *const DocumentStore.Handle) ![]types.CompletionItem {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
return try server.document_store.errorCompletionItems(server.arena.allocator(), handle.*);
|
|
}
|
|
|
|
fn kindToSortScore(kind: types.CompletionItem.Kind) ?[]const u8 {
|
|
return switch (kind) {
|
|
.Module => "1_", // use for packages
|
|
.Folder => "2_",
|
|
.File => "3_",
|
|
|
|
.Constant => "1_",
|
|
|
|
.Variable => "2_",
|
|
.Field => "3_",
|
|
.Function => "4_",
|
|
|
|
.Keyword, .Snippet, .EnumMember => "5_",
|
|
|
|
.Class,
|
|
.Interface,
|
|
.Struct,
|
|
// Union?
|
|
.TypeParameter,
|
|
=> "6_",
|
|
|
|
else => {
|
|
std.log.debug(@typeName(types.CompletionItem.Kind) ++ "{s} has no sort score specified!", .{@tagName(kind)});
|
|
return null;
|
|
},
|
|
};
|
|
}
|
|
|
|
fn completeDot(server: *Server, handle: *const DocumentStore.Handle) ![]types.CompletionItem {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
var completions = try server.document_store.enumCompletionItems(server.arena.allocator(), handle.*);
|
|
|
|
return completions;
|
|
}
|
|
|
|
fn completeFileSystemStringLiteral(allocator: std.mem.Allocator, store: *const DocumentStore, handle: *const DocumentStore.Handle, completing: []const u8, is_import: bool) ![]types.CompletionItem {
|
|
var subpath_present = false;
|
|
var completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
|
|
fsc: {
|
|
var document_path = try uri_utils.parse(allocator, handle.uri);
|
|
var document_dir_path = std.fs.openIterableDirAbsolute(std.fs.path.dirname(document_path) orelse break :fsc, .{}) catch break :fsc;
|
|
defer document_dir_path.close();
|
|
|
|
if (std.mem.lastIndexOfScalar(u8, completing, '/')) |subpath_index| {
|
|
var subpath = completing[0..subpath_index];
|
|
|
|
if (std.mem.startsWith(u8, subpath, "./") and subpath_index > 2) {
|
|
subpath = completing[2..subpath_index];
|
|
} else if (std.mem.startsWith(u8, subpath, ".") and subpath_index > 1) {
|
|
subpath = completing[1..subpath_index];
|
|
}
|
|
|
|
var old = document_dir_path;
|
|
document_dir_path = document_dir_path.dir.openIterableDir(subpath, .{}) catch break :fsc // NOTE: Is this even safe lol?
|
|
old.close();
|
|
|
|
subpath_present = true;
|
|
}
|
|
|
|
var dir_iterator = document_dir_path.iterate();
|
|
while (try dir_iterator.next()) |entry| {
|
|
if (std.mem.startsWith(u8, entry.name, ".")) continue;
|
|
if (entry.kind == .File and is_import and !std.mem.endsWith(u8, entry.name, ".zig")) continue;
|
|
|
|
const l = try allocator.dupe(u8, entry.name);
|
|
try completions.append(allocator, types.CompletionItem{
|
|
.label = l,
|
|
.insertText = l,
|
|
.kind = if (entry.kind == .File) .File else .Folder,
|
|
});
|
|
}
|
|
}
|
|
|
|
if (!subpath_present and is_import) {
|
|
if (handle.associated_build_file) |uri| {
|
|
const build_file = store.build_files.get(uri).?;
|
|
try completions.ensureUnusedCapacity(allocator, build_file.config.packages.len);
|
|
|
|
for (build_file.config.packages) |pkg| {
|
|
completions.appendAssumeCapacity(.{
|
|
.label = pkg.name,
|
|
.kind = .Module,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
return completions.toOwnedSlice(allocator);
|
|
}
|
|
|
|
fn documentSymbol(server: *Server, writer: anytype, id: types.RequestId, handle: *const DocumentStore.Handle) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{ .DocumentSymbols = try analysis.getDocumentSymbols(server.arena.allocator(), handle.tree, server.offset_encoding) },
|
|
});
|
|
}
|
|
|
|
fn initializeHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.Initialize) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
if (req.params.capabilities.general) |general| {
|
|
var supports_utf8 = false;
|
|
var supports_utf16 = false;
|
|
var supports_utf32 = false;
|
|
for (general.positionEncodings.value) |encoding| {
|
|
if (std.mem.eql(u8, encoding, "utf-8")) {
|
|
supports_utf8 = true;
|
|
} else if (std.mem.eql(u8, encoding, "utf-16")) {
|
|
supports_utf16 = true;
|
|
} else if (std.mem.eql(u8, encoding, "utf-32")) {
|
|
supports_utf32 = true;
|
|
}
|
|
}
|
|
|
|
if (supports_utf8) {
|
|
server.offset_encoding = .utf8;
|
|
} else if (supports_utf32) {
|
|
server.offset_encoding = .utf32;
|
|
} else {
|
|
server.offset_encoding = .utf16;
|
|
}
|
|
}
|
|
|
|
if (req.params.capabilities.textDocument) |textDocument| {
|
|
server.client_capabilities.supports_semantic_tokens = textDocument.semanticTokens.exists;
|
|
server.client_capabilities.supports_inlay_hints = textDocument.inlayHint.exists;
|
|
if (textDocument.hover) |hover| {
|
|
for (hover.contentFormat.value) |format| {
|
|
if (std.mem.eql(u8, "markdown", format)) {
|
|
server.client_capabilities.hover_supports_md = true;
|
|
}
|
|
}
|
|
}
|
|
if (textDocument.completion) |completion| {
|
|
if (completion.completionItem) |completionItem| {
|
|
server.client_capabilities.label_details_support = completionItem.labelDetailsSupport.value;
|
|
server.client_capabilities.supports_snippets = completionItem.snippetSupport.value;
|
|
for (completionItem.documentationFormat.value) |documentationFormat| {
|
|
if (std.mem.eql(u8, "markdown", documentationFormat)) {
|
|
server.client_capabilities.completion_doc_supports_md = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{
|
|
.InitializeResult = .{
|
|
.serverInfo = .{
|
|
.name = "zls",
|
|
.version = "0.1.0",
|
|
},
|
|
.capabilities = .{
|
|
.positionEncoding = server.offset_encoding,
|
|
.signatureHelpProvider = .{
|
|
.triggerCharacters = &.{"("},
|
|
.retriggerCharacters = &.{","},
|
|
},
|
|
.textDocumentSync = .{
|
|
.openClose = true,
|
|
.change = .Full,
|
|
.save = true,
|
|
},
|
|
.renameProvider = true,
|
|
.completionProvider = .{ .resolveProvider = false, .triggerCharacters = &[_][]const u8{ ".", ":", "@", "]" }, .completionItem = .{ .labelDetailsSupport = true } },
|
|
.documentHighlightProvider = true,
|
|
.hoverProvider = true,
|
|
.codeActionProvider = true,
|
|
.declarationProvider = true,
|
|
.definitionProvider = true,
|
|
.typeDefinitionProvider = true,
|
|
.implementationProvider = false,
|
|
.referencesProvider = true,
|
|
.documentSymbolProvider = true,
|
|
.colorProvider = false,
|
|
.documentFormattingProvider = true,
|
|
.documentRangeFormattingProvider = false,
|
|
.foldingRangeProvider = false,
|
|
.selectionRangeProvider = false,
|
|
.workspaceSymbolProvider = false,
|
|
.rangeProvider = false,
|
|
.documentProvider = true,
|
|
.workspace = .{
|
|
.workspaceFolders = .{
|
|
.supported = false,
|
|
.changeNotifications = false,
|
|
},
|
|
},
|
|
.semanticTokensProvider = .{
|
|
.full = true,
|
|
.range = false,
|
|
.legend = .{
|
|
.tokenTypes = comptime block: {
|
|
const tokTypeFields = std.meta.fields(semantic_tokens.TokenType);
|
|
var names: [tokTypeFields.len][]const u8 = undefined;
|
|
for (tokTypeFields) |field, i| {
|
|
names[i] = field.name;
|
|
}
|
|
break :block &names;
|
|
},
|
|
.tokenModifiers = comptime block: {
|
|
const tokModFields = std.meta.fields(semantic_tokens.TokenModifiers);
|
|
var names: [tokModFields.len][]const u8 = undefined;
|
|
for (tokModFields) |field, i| {
|
|
names[i] = field.name;
|
|
}
|
|
break :block &names;
|
|
},
|
|
},
|
|
},
|
|
.inlayHintProvider = true,
|
|
},
|
|
},
|
|
},
|
|
});
|
|
|
|
server.status = .initializing;
|
|
|
|
if (req.params.capabilities.workspace) |workspace| {
|
|
server.client_capabilities.supports_configuration = workspace.configuration.value;
|
|
if (workspace.didChangeConfiguration != null and workspace.didChangeConfiguration.?.dynamicRegistration.value) {
|
|
try server.registerCapability(writer, "workspace/didChangeConfiguration");
|
|
}
|
|
}
|
|
|
|
log.info("zls initializing", .{});
|
|
log.info("{}", .{server.client_capabilities});
|
|
log.info("Using offset encoding: {s}", .{std.meta.tagName(server.offset_encoding)});
|
|
|
|
// TODO avoid having to call getZigEnv twice
|
|
// once in init and here
|
|
const env = Config.getZigEnv(server.allocator, server.config.zig_exe_path.?) orelse return;
|
|
defer std.json.parseFree(Config.Env, env, .{ .allocator = server.allocator });
|
|
|
|
const zig_exe_version = std.SemanticVersion.parse(env.version) catch return;
|
|
|
|
if (zig_builtin.zig_version.order(zig_exe_version) == .gt) {
|
|
try server.showMessage(writer, .Warning,
|
|
\\ZLS has been build with a newer version than you are using!
|
|
\\This may cause unexpected issues.
|
|
);
|
|
}
|
|
}
|
|
|
|
fn initializedHandler(server: *Server, writer: anytype, id: types.RequestId) !void {
|
|
_ = id;
|
|
|
|
if (server.status != .initializing) {
|
|
std.log.warn("received a initialized notification but the server has not send a initialize request!", .{});
|
|
}
|
|
|
|
server.status = .initialized;
|
|
|
|
if (server.client_capabilities.supports_configuration)
|
|
try server.requestConfiguration(writer);
|
|
}
|
|
|
|
fn shutdownHandler(server: *Server, writer: anytype, id: types.RequestId) !void {
|
|
if (server.status != .initialized) {
|
|
return try sendErrorResponse(
|
|
writer,
|
|
server.arena.allocator(),
|
|
types.ErrorCodes.InvalidRequest,
|
|
"received a shutdown request but the server is not initialized!",
|
|
);
|
|
}
|
|
|
|
// Technically we should deinitialize first and send possible errors to the client
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
}
|
|
|
|
fn exitHandler(server: *Server, writer: anytype, id: types.RequestId) noreturn {
|
|
_ = writer;
|
|
_ = id;
|
|
log.info("Server exiting...", .{});
|
|
// Technically we should deinitialize first and send possible errors to the client
|
|
|
|
const error_code: u8 = switch (server.status) {
|
|
.uninitialized, .shutdown => 0,
|
|
else => 1,
|
|
};
|
|
|
|
std.os.exit(error_code);
|
|
}
|
|
|
|
fn registerCapability(server: *Server, writer: anytype, method: []const u8) !void {
|
|
const id = try std.fmt.allocPrint(server.arena.allocator(), "register-{s}", .{method});
|
|
log.debug("Dynamically registering method '{s}'", .{method});
|
|
|
|
if (zig_builtin.zig_backend == .stage1) {
|
|
const reg = types.RegistrationParams.Registration{
|
|
.id = id,
|
|
.method = method,
|
|
};
|
|
const registrations = [1]types.RegistrationParams.Registration{reg};
|
|
const params = types.RegistrationParams{
|
|
.registrations = ®istrations,
|
|
};
|
|
|
|
const respp = types.ResponseParams{
|
|
.RegistrationParams = params,
|
|
};
|
|
const req = types.Request{
|
|
.id = .{ .String = id },
|
|
.method = "client/registerCapability",
|
|
.params = respp,
|
|
};
|
|
|
|
try send(writer, server.arena.allocator(), req);
|
|
} else {
|
|
try send(writer, server.arena.allocator(), types.Request{
|
|
.id = .{ .String = id },
|
|
.method = "client/registerCapability",
|
|
.params = types.ResponseParams{
|
|
.RegistrationParams = types.RegistrationParams{
|
|
.registrations = &.{
|
|
.{
|
|
.id = id,
|
|
.method = method,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
});
|
|
}
|
|
}
|
|
|
|
fn requestConfiguration(server: *Server, writer: anytype) !void {
|
|
const configuration_items = comptime confi: {
|
|
var comp_confi: [std.meta.fields(Config).len]types.ConfigurationParams.ConfigurationItem = undefined;
|
|
inline for (std.meta.fields(Config)) |field, index| {
|
|
comp_confi[index] = .{
|
|
.section = "zls." ++ field.name,
|
|
};
|
|
}
|
|
|
|
break :confi comp_confi;
|
|
};
|
|
|
|
try send(writer, server.arena.allocator(), types.Request{
|
|
.id = .{ .String = "i_haz_configuration" },
|
|
.method = "workspace/configuration",
|
|
.params = types.ResponseParams{
|
|
.ConfigurationParams = .{
|
|
.items = &configuration_items,
|
|
},
|
|
},
|
|
});
|
|
}
|
|
|
|
fn openDocumentHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.OpenDocument) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
_ = id;
|
|
|
|
const handle = try server.document_store.openDocument(req.params.textDocument.uri, req.params.textDocument.text);
|
|
try server.publishDiagnostics(writer, handle);
|
|
}
|
|
|
|
fn changeDocumentHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.ChangeDocument) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
_ = id;
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse return;
|
|
|
|
const new_text = try diff.applyTextEdits(server.allocator, handle.text, req.params.contentChanges, server.offset_encoding);
|
|
server.allocator.free(handle.text);
|
|
handle.text = new_text;
|
|
|
|
try server.document_store.refreshDocument(handle);
|
|
try server.publishDiagnostics(writer, handle.*);
|
|
}
|
|
|
|
fn saveDocumentHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.SaveDocument) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
_ = id;
|
|
const allocator = server.arena.allocator();
|
|
const uri = req.params.textDocument.uri;
|
|
|
|
const handle = server.document_store.getHandle(uri) orelse return;
|
|
try server.document_store.applySave(handle);
|
|
|
|
if (handle.tree.errors.len != 0) return;
|
|
if (!server.config.enable_ast_check_diagnostics) return;
|
|
if (!server.config.enable_autofix) return;
|
|
|
|
var diagnostics = std.ArrayListUnmanaged(types.Diagnostic){};
|
|
try getAstCheckDiagnostics(server, handle.*, &diagnostics);
|
|
|
|
var builder = code_actions.Builder{
|
|
.arena = &server.arena,
|
|
.document_store = &server.document_store,
|
|
.handle = handle,
|
|
.offset_encoding = server.offset_encoding,
|
|
};
|
|
|
|
var actions = std.ArrayListUnmanaged(types.CodeAction){};
|
|
for (diagnostics.items) |diagnostic| {
|
|
try builder.generateCodeAction(diagnostic, &actions);
|
|
}
|
|
|
|
var text_edits = std.ArrayListUnmanaged(types.TextEdit){};
|
|
for (actions.items) |action| {
|
|
if (action.kind != .SourceFixAll) continue;
|
|
|
|
if (action.edit.changes.size != 1) continue;
|
|
const edits = action.edit.changes.get(uri) orelse continue;
|
|
|
|
try text_edits.appendSlice(allocator, edits.items);
|
|
}
|
|
|
|
var workspace_edit = types.WorkspaceEdit{ .changes = .{} };
|
|
try workspace_edit.changes.putNoClobber(allocator, uri, text_edits);
|
|
|
|
// NOTE: stage1 moment
|
|
const params = types.ResponseParams{
|
|
.ApplyEdit = types.ApplyWorkspaceEditParams{
|
|
.label = "autofix",
|
|
.edit = workspace_edit,
|
|
},
|
|
};
|
|
|
|
try send(writer, allocator, types.Request{
|
|
.id = .{ .String = "apply_edit" },
|
|
.method = "workspace/applyEdit",
|
|
.params = params,
|
|
});
|
|
}
|
|
|
|
fn closeDocumentHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.CloseDocument) error{}!void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
_ = id;
|
|
_ = writer;
|
|
server.document_store.closeDocument(req.params.textDocument.uri);
|
|
}
|
|
|
|
fn semanticTokensFullHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.SemanticTokensFull) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
if (!server.config.enable_semantic_tokens) return try respondGeneric(writer, id, no_semantic_tokens_response);
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, no_semantic_tokens_response);
|
|
};
|
|
|
|
const token_array = try semantic_tokens.writeAllSemanticTokens(&server.arena, &server.document_store, handle, server.offset_encoding);
|
|
|
|
return try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{ .SemanticTokensFull = .{ .data = token_array } },
|
|
});
|
|
}
|
|
|
|
fn completionHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.Completion) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, no_completions_response);
|
|
};
|
|
|
|
if (req.params.position.character == 0) {
|
|
var completions = std.ArrayListUnmanaged(types.CompletionItem){};
|
|
try populateSnippedCompletions(server.arena.allocator(), &completions, &snipped_data.top_level_decl_data, server.config.*, null);
|
|
|
|
return try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{
|
|
.CompletionList = .{ .isIncomplete = false, .items = completions.items },
|
|
},
|
|
});
|
|
}
|
|
|
|
const source_index = offsets.positionToIndex(handle.text, req.params.position, server.offset_encoding);
|
|
const pos_context = try analysis.getPositionContext(server.arena.allocator(), handle.text, source_index);
|
|
|
|
const maybe_completions = switch (pos_context) {
|
|
.builtin => server.builtin_completions.items,
|
|
.var_access, .empty => try server.completeGlobal(source_index, handle),
|
|
.field_access => |loc| try server.completeFieldAccess(handle, source_index, loc),
|
|
.global_error_set => try server.completeError(handle),
|
|
.enum_literal => try server.completeDot(handle),
|
|
.label => try server.completeLabel(source_index, handle),
|
|
.import_string_literal, .embedfile_string_literal => |loc| blk: {
|
|
if (!server.config.enable_import_embedfile_argument_completions) break :blk null;
|
|
|
|
const completing = offsets.locToSlice(handle.tree.source, loc);
|
|
const is_import = pos_context == .import_string_literal;
|
|
break :blk try completeFileSystemStringLiteral(server.arena.allocator(), &server.document_store, handle, completing, is_import);
|
|
},
|
|
else => null,
|
|
};
|
|
|
|
const completions = maybe_completions orelse return try respondGeneric(writer, id, no_completions_response);
|
|
|
|
// truncate completions
|
|
for (completions) |*item| {
|
|
if (item.detail) |det| {
|
|
if (det.len > server.config.max_detail_length) {
|
|
item.detail = det[0..server.config.max_detail_length];
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: config for sorting rule?
|
|
for (completions) |*c| {
|
|
const prefix = kindToSortScore(c.kind) orelse continue;
|
|
|
|
c.sortText = try std.fmt.allocPrint(server.arena.allocator(), "{s}{s}", .{ prefix, c.label });
|
|
}
|
|
|
|
try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{
|
|
.CompletionList = .{
|
|
.isIncomplete = false,
|
|
.items = completions,
|
|
},
|
|
},
|
|
});
|
|
}
|
|
|
|
fn signatureHelpHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.SignatureHelp) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const getSignatureInfo = @import("signature_help.zig").getSignatureInfo;
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, no_signatures_response);
|
|
};
|
|
|
|
if (req.params.position.character == 0)
|
|
return try respondGeneric(writer, id, no_signatures_response);
|
|
|
|
const source_index = offsets.positionToIndex(handle.text, req.params.position, server.offset_encoding);
|
|
if (try getSignatureInfo(
|
|
&server.document_store,
|
|
&server.arena,
|
|
handle,
|
|
source_index,
|
|
data,
|
|
)) |sig_info| {
|
|
return try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{
|
|
.SignatureHelp = .{
|
|
.signatures = &[1]types.SignatureInformation{sig_info},
|
|
.activeSignature = 0,
|
|
.activeParameter = sig_info.activeParameter,
|
|
},
|
|
},
|
|
});
|
|
}
|
|
return try respondGeneric(writer, id, no_signatures_response);
|
|
}
|
|
|
|
fn gotoHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.GotoDefinition, resolve_alias: bool) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
|
|
if (req.params.position.character == 0) return try respondGeneric(writer, id, null_result_response);
|
|
|
|
const source_index = offsets.positionToIndex(handle.text, req.params.position, server.offset_encoding);
|
|
const pos_context = try analysis.getPositionContext(server.arena.allocator(), handle.text, source_index);
|
|
|
|
const maybe_location = switch (pos_context) {
|
|
.var_access => try server.gotoDefinitionGlobal(source_index, handle, resolve_alias),
|
|
.field_access => |loc| try server.gotoDefinitionFieldAccess(handle, source_index, loc, resolve_alias),
|
|
.import_string_literal => try server.gotoDefinitionString(source_index, handle),
|
|
.label => try server.gotoDefinitionLabel(source_index, handle),
|
|
else => null,
|
|
};
|
|
|
|
const location = maybe_location orelse return try respondGeneric(writer, id, null_result_response);
|
|
|
|
try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{ .Location = location },
|
|
});
|
|
}
|
|
|
|
fn gotoDefinitionHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.GotoDefinition) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
try server.gotoHandler(writer, id, req, true);
|
|
}
|
|
|
|
fn gotoDeclarationHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.GotoDeclaration) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
try server.gotoHandler(writer, id, req, false);
|
|
}
|
|
|
|
fn hoverHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.Hover) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
|
|
if (req.params.position.character == 0) return try respondGeneric(writer, id, null_result_response);
|
|
|
|
const source_index = offsets.positionToIndex(handle.text, req.params.position, server.offset_encoding);
|
|
const pos_context = try analysis.getPositionContext(server.arena.allocator(), handle.text, source_index);
|
|
|
|
const maybe_hover = switch (pos_context) {
|
|
.builtin => try server.hoverDefinitionBuiltin(source_index, handle),
|
|
.var_access => try server.hoverDefinitionGlobal(source_index, handle),
|
|
.field_access => |loc| try server.hoverDefinitionFieldAccess(handle, source_index, loc),
|
|
.label => try server.hoverDefinitionLabel(source_index, handle),
|
|
else => null,
|
|
};
|
|
|
|
const hover = maybe_hover orelse return try respondGeneric(writer, id, null_result_response);
|
|
|
|
try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{ .Hover = hover },
|
|
});
|
|
}
|
|
|
|
fn documentSymbolsHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.DocumentSymbols) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
try server.documentSymbol(writer, id, handle);
|
|
}
|
|
|
|
fn formattingHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.Formatting) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
if (server.config.zig_exe_path) |zig_exe_path| {
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
|
|
var process = std.ChildProcess.init(&[_][]const u8{ zig_exe_path, "fmt", "--stdin" }, server.allocator);
|
|
process.stdin_behavior = .Pipe;
|
|
process.stdout_behavior = .Pipe;
|
|
|
|
process.spawn() catch |err| {
|
|
log.warn("Failed to spawn zig fmt process, error: {}", .{err});
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
try process.stdin.?.writeAll(handle.text);
|
|
process.stdin.?.close();
|
|
process.stdin = null;
|
|
|
|
const stdout_bytes = try process.stdout.?.reader().readAllAlloc(server.allocator, std.math.maxInt(usize));
|
|
defer server.allocator.free(stdout_bytes);
|
|
|
|
switch (try process.wait()) {
|
|
.Exited => |code| if (code == 0) {
|
|
if (std.mem.eql(u8, handle.text, stdout_bytes)) return try respondGeneric(writer, id, null_result_response);
|
|
|
|
var edits = diff.edits(server.arena.allocator(), handle.text, stdout_bytes) catch {
|
|
const range = offsets.locToRange(handle.text, .{ .start = 0, .end = handle.text.len }, server.offset_encoding);
|
|
// If there was an error trying to diff the text, return the formatted response
|
|
// as the new text for the entire range of the document
|
|
return try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{
|
|
.TextEdits = &[1]types.TextEdit{
|
|
.{
|
|
.range = range,
|
|
.newText = stdout_bytes,
|
|
},
|
|
},
|
|
},
|
|
});
|
|
};
|
|
|
|
// Convert from `[]diff.Edit` to `[]types.TextEdit`
|
|
var text_edits = try std.ArrayListUnmanaged(types.TextEdit).initCapacity(server.arena.allocator(), edits.items.len);
|
|
for (edits.items) |edit| {
|
|
text_edits.appendAssumeCapacity(.{
|
|
.range = edit.range,
|
|
.newText = edit.newText.items,
|
|
});
|
|
}
|
|
|
|
return try send(
|
|
writer,
|
|
server.arena.allocator(),
|
|
types.Response{
|
|
.id = id,
|
|
.result = .{ .TextEdits = text_edits.items },
|
|
},
|
|
);
|
|
},
|
|
else => {},
|
|
}
|
|
}
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
}
|
|
|
|
fn didChangeConfigurationHandler(server: *Server, writer: anytype, id: types.RequestId, req: Config.DidChangeConfigurationParams) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
_ = id;
|
|
|
|
// NOTE: VS Code seems to always respond with null
|
|
if (req.settings) |configuration| {
|
|
inline for (std.meta.fields(Config.Configuration)) |field| {
|
|
if (@field(configuration, field.name)) |value| {
|
|
@field(server.config, field.name) = if (@TypeOf(value) == []const u8) try server.allocator.dupe(u8, value) else value;
|
|
log.debug("setting configuration option '{s}' to '{any}'", .{ field.name, value });
|
|
}
|
|
}
|
|
|
|
try server.config.configChanged(server.allocator, null);
|
|
} else if (server.client_capabilities.supports_configuration) {
|
|
try server.requestConfiguration(writer);
|
|
}
|
|
}
|
|
|
|
fn renameHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.Rename) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
try generalReferencesHandler(server, writer, id, .{ .rename = req });
|
|
}
|
|
|
|
fn referencesHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.References) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
try generalReferencesHandler(server, writer, id, .{ .references = req });
|
|
}
|
|
|
|
fn documentHighlightHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.DocumentHighlight) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
try generalReferencesHandler(server, writer, id, .{ .highlight = req });
|
|
}
|
|
|
|
const GeneralReferencesRequest = union(enum) {
|
|
rename: requests.Rename,
|
|
references: requests.References,
|
|
highlight: requests.DocumentHighlight,
|
|
|
|
pub fn uri(self: @This()) []const u8 {
|
|
return switch (self) {
|
|
.rename => |rename| rename.params.textDocument.uri,
|
|
.references => |ref| ref.params.textDocument.uri,
|
|
.highlight => |highlight| highlight.params.textDocument.uri,
|
|
};
|
|
}
|
|
|
|
pub fn position(self: @This()) types.Position {
|
|
return switch (self) {
|
|
.rename => |rename| rename.params.position,
|
|
.references => |ref| ref.params.position,
|
|
.highlight => |highlight| highlight.params.position,
|
|
};
|
|
}
|
|
};
|
|
|
|
fn generalReferencesHandler(server: *Server, writer: anytype, id: types.RequestId, req: GeneralReferencesRequest) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
const allocator = server.arena.allocator();
|
|
|
|
const handle = server.document_store.getHandle(req.uri()) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
|
|
if (req.position().character <= 0) return try respondGeneric(writer, id, null_result_response);
|
|
|
|
const source_index = offsets.positionToIndex(handle.text, req.position(), server.offset_encoding);
|
|
const pos_context = try analysis.getPositionContext(server.arena.allocator(), handle.text, source_index);
|
|
|
|
const decl = switch (pos_context) {
|
|
.var_access => try server.getSymbolGlobal(source_index, handle),
|
|
.field_access => |range| try server.getSymbolFieldAccess(handle, source_index, range),
|
|
.label => try getLabelGlobal(source_index, handle),
|
|
else => null,
|
|
} orelse return try respondGeneric(writer, id, null_result_response);
|
|
|
|
const include_decl = switch (req) {
|
|
.references => |ref| ref.params.context.includeDeclaration,
|
|
else => true,
|
|
};
|
|
|
|
const locations = if (pos_context == .label)
|
|
try references.labelReferences(allocator, decl, server.offset_encoding, include_decl)
|
|
else
|
|
try references.symbolReferences(
|
|
&server.arena,
|
|
&server.document_store,
|
|
decl,
|
|
server.offset_encoding,
|
|
include_decl,
|
|
server.config.skip_std_references,
|
|
req != .highlight, // scan the entire workspace except for highlight
|
|
);
|
|
|
|
const result: types.ResponseParams = switch (req) {
|
|
.rename => |rename| blk: {
|
|
var edits: types.WorkspaceEdit = .{ .changes = .{} };
|
|
for (locations.items) |loc| {
|
|
const gop = try edits.changes.getOrPutValue(allocator, loc.uri, .{});
|
|
try gop.value_ptr.append(allocator, .{
|
|
.range = loc.range,
|
|
.newText = rename.params.newName,
|
|
});
|
|
}
|
|
break :blk .{ .WorkspaceEdit = edits };
|
|
},
|
|
.references => .{ .Locations = locations.items },
|
|
.highlight => blk: {
|
|
var highlights = try std.ArrayListUnmanaged(types.DocumentHighlight).initCapacity(allocator, locations.items.len);
|
|
const uri = handle.uri;
|
|
for (locations.items) |loc| {
|
|
if (!std.mem.eql(u8, loc.uri, uri)) continue;
|
|
highlights.appendAssumeCapacity(.{
|
|
.range = loc.range,
|
|
.kind = .Text,
|
|
});
|
|
}
|
|
break :blk .{ .DocumentHighlight = highlights.items };
|
|
},
|
|
};
|
|
|
|
try send(writer, allocator, types.Response{
|
|
.id = id,
|
|
.result = result,
|
|
});
|
|
}
|
|
|
|
fn isPositionBefore(lhs: types.Position, rhs: types.Position) bool {
|
|
if (lhs.line == rhs.line) {
|
|
return lhs.character < rhs.character;
|
|
} else {
|
|
return lhs.line < rhs.line;
|
|
}
|
|
}
|
|
|
|
fn inlayHintHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.InlayHint) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
if (!server.config.enable_inlay_hints) return try respondGeneric(writer, id, null_result_response);
|
|
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
|
|
const hover_kind: types.MarkupContent.Kind = if (server.client_capabilities.hover_supports_md) .Markdown else .PlainText;
|
|
|
|
// TODO cache hints per document
|
|
// because the function could be stored in a different document
|
|
// we need the regenerate hints when the document itself or its imported documents change
|
|
// with caching it would also make sense to generate all hints instead of only the visible ones
|
|
const hints = try inlay_hints.writeRangeInlayHint(
|
|
&server.arena,
|
|
server.config.*,
|
|
&server.document_store,
|
|
handle,
|
|
req.params.range,
|
|
hover_kind,
|
|
server.offset_encoding,
|
|
);
|
|
defer {
|
|
for (hints) |hint| {
|
|
server.allocator.free(hint.tooltip.value);
|
|
}
|
|
server.allocator.free(hints);
|
|
}
|
|
|
|
// and only convert and return all hints in range for every request
|
|
var visible_hints = hints;
|
|
|
|
// small_hints should roughly be sorted by position
|
|
for (hints) |hint, i| {
|
|
if (isPositionBefore(hint.position, req.params.range.start)) continue;
|
|
visible_hints = hints[i..];
|
|
break;
|
|
}
|
|
for (visible_hints) |hint, i| {
|
|
if (isPositionBefore(hint.position, req.params.range.end)) continue;
|
|
visible_hints = visible_hints[0..i];
|
|
break;
|
|
}
|
|
|
|
return try send(writer, server.arena.allocator(), types.Response{
|
|
.id = id,
|
|
.result = .{ .InlayHint = visible_hints },
|
|
});
|
|
}
|
|
|
|
fn codeActionHandler(server: *Server, writer: anytype, id: types.RequestId, req: requests.CodeAction) !void {
|
|
const handle = server.document_store.getHandle(req.params.textDocument.uri) orelse {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
};
|
|
|
|
const allocator = server.arena.allocator();
|
|
|
|
var builder = code_actions.Builder{
|
|
.arena = &server.arena,
|
|
.document_store = &server.document_store,
|
|
.handle = handle,
|
|
.offset_encoding = server.offset_encoding,
|
|
};
|
|
|
|
var actions = std.ArrayListUnmanaged(types.CodeAction){};
|
|
|
|
for (req.params.context.diagnostics) |diagnostic| {
|
|
try builder.generateCodeAction(diagnostic, &actions);
|
|
}
|
|
|
|
for (actions.items) |*action| {
|
|
// TODO query whether SourceFixAll is supported by the server
|
|
if (action.kind == .SourceFixAll) action.kind = .QuickFix;
|
|
}
|
|
|
|
return try send(writer, allocator, types.Response{
|
|
.id = id,
|
|
.result = .{ .CodeAction = actions.items },
|
|
});
|
|
}
|
|
|
|
// Needed for the hack seen below.
|
|
fn extractErr(val: anytype) anyerror {
|
|
val catch |e| return e;
|
|
return error.HackDone;
|
|
}
|
|
|
|
pub fn processJsonRpc(server: *Server, writer: anytype, json: []const u8) !void {
|
|
const tracy_zone = tracy.trace(@src());
|
|
defer tracy_zone.end();
|
|
|
|
server.arena = std.heap.ArenaAllocator.init(server.allocator);
|
|
defer server.arena.deinit();
|
|
|
|
var parser = std.json.Parser.init(server.arena.allocator(), false);
|
|
defer parser.deinit();
|
|
|
|
var tree = try parser.parse(json);
|
|
defer tree.deinit();
|
|
|
|
const id = if (tree.root.Object.get("id")) |id| switch (id) {
|
|
.Integer => |int| types.RequestId{ .Integer = @intCast(i32, int) },
|
|
.String => |str| types.RequestId{ .String = str },
|
|
else => types.RequestId{ .Integer = 0 },
|
|
} else types.RequestId{ .Integer = 0 };
|
|
|
|
if (id == .String and std.mem.startsWith(u8, id.String, "register"))
|
|
return;
|
|
if (id == .String and std.mem.startsWith(u8, id.String, "apply_edit"))
|
|
return;
|
|
if (id == .String and std.mem.eql(u8, id.String, "i_haz_configuration")) {
|
|
log.info("Setting configuration...", .{});
|
|
|
|
// NOTE: Does this work with other editors?
|
|
// Yes, String ids are officially supported by LSP
|
|
// but not sure how standard this "standard" really is
|
|
|
|
const result = tree.root.Object.get("result").?.Array;
|
|
|
|
inline for (std.meta.fields(Config)) |field, index| {
|
|
const value = result.items[index];
|
|
const ft = if (@typeInfo(field.field_type) == .Optional)
|
|
@typeInfo(field.field_type).Optional.child
|
|
else
|
|
field.field_type;
|
|
const ti = @typeInfo(ft);
|
|
|
|
if (value != .Null) {
|
|
const new_value: field.field_type = switch (ft) {
|
|
[]const u8 => switch (value) {
|
|
.String => |s| blk: {
|
|
var nv = try server.allocator.dupe(u8, s);
|
|
if (@field(server.config, field.name)) |prev_val| server.allocator.free(prev_val);
|
|
break :blk nv;
|
|
}, // TODO: Allocation model? (same with didChangeConfiguration); imo this isn't *that* bad but still
|
|
else => @panic("Invalid configuration value"), // TODO: Handle this
|
|
},
|
|
else => switch (ti) {
|
|
.Int => switch (value) {
|
|
.Integer => |s| std.math.cast(ft, s) orelse @panic("Invalid configuration value"),
|
|
else => @panic("Invalid configuration value"), // TODO: Handle this
|
|
},
|
|
.Bool => switch (value) {
|
|
.Bool => |b| b,
|
|
else => @panic("Invalid configuration value"), // TODO: Handle this
|
|
},
|
|
else => @compileError("Not implemented for " ++ @typeName(ft)),
|
|
},
|
|
};
|
|
log.debug("setting configuration option '{s}' to '{any}'", .{ field.name, new_value });
|
|
@field(server.config, field.name) = new_value;
|
|
}
|
|
}
|
|
|
|
try server.config.configChanged(server.allocator, null);
|
|
|
|
return;
|
|
}
|
|
|
|
const method = tree.root.Object.get("method").?.String;
|
|
|
|
switch (server.status) {
|
|
.uninitialized => blk: {
|
|
if (std.mem.eql(u8, method, "initialize")) break :blk;
|
|
if (std.mem.eql(u8, method, "exit")) break :blk;
|
|
|
|
// ignore notifications
|
|
if (tree.root.Object.get("id") == null) break :blk;
|
|
|
|
return try sendErrorResponse(writer, server.arena.allocator(), .ServerNotInitialized, "server received a request before being initialized!");
|
|
},
|
|
.initializing => blk: {
|
|
if (std.mem.eql(u8, method, "initialized")) break :blk;
|
|
if (std.mem.eql(u8, method, "$/progress")) break :blk;
|
|
|
|
return try sendErrorResponse(writer, server.arena.allocator(), .InvalidRequest, "server received a request during initialization!");
|
|
},
|
|
.initialized => {},
|
|
.shutdown => return try sendErrorResponse(writer, server.arena.allocator(), .InvalidRequest, "server received a request after shutdown!"),
|
|
}
|
|
|
|
const start_time = std.time.milliTimestamp();
|
|
defer {
|
|
// makes `zig build test` look nice
|
|
if (!zig_builtin.is_test and !std.mem.eql(u8, method, "shutdown")) {
|
|
const end_time = std.time.milliTimestamp();
|
|
log.debug("Took {}ms to process method {s}", .{ end_time - start_time, method });
|
|
}
|
|
}
|
|
|
|
const method_map = .{
|
|
.{ "initialized", void, initializedHandler },
|
|
.{"$/cancelRequest"},
|
|
.{"textDocument/willSave"},
|
|
.{ "initialize", requests.Initialize, initializeHandler },
|
|
.{ "shutdown", void, shutdownHandler },
|
|
.{ "exit", void, exitHandler },
|
|
.{ "textDocument/didOpen", requests.OpenDocument, openDocumentHandler },
|
|
.{ "textDocument/didChange", requests.ChangeDocument, changeDocumentHandler },
|
|
.{ "textDocument/didSave", requests.SaveDocument, saveDocumentHandler },
|
|
.{ "textDocument/didClose", requests.CloseDocument, closeDocumentHandler },
|
|
.{ "textDocument/semanticTokens/full", requests.SemanticTokensFull, semanticTokensFullHandler },
|
|
.{ "textDocument/inlayHint", requests.InlayHint, inlayHintHandler },
|
|
.{ "textDocument/completion", requests.Completion, completionHandler },
|
|
.{ "textDocument/signatureHelp", requests.SignatureHelp, signatureHelpHandler },
|
|
.{ "textDocument/definition", requests.GotoDefinition, gotoDefinitionHandler },
|
|
.{ "textDocument/typeDefinition", requests.GotoDefinition, gotoDefinitionHandler },
|
|
.{ "textDocument/implementation", requests.GotoDefinition, gotoDefinitionHandler },
|
|
.{ "textDocument/declaration", requests.GotoDeclaration, gotoDeclarationHandler },
|
|
.{ "textDocument/hover", requests.Hover, hoverHandler },
|
|
.{ "textDocument/documentSymbol", requests.DocumentSymbols, documentSymbolsHandler },
|
|
.{ "textDocument/formatting", requests.Formatting, formattingHandler },
|
|
.{ "textDocument/rename", requests.Rename, renameHandler },
|
|
.{ "textDocument/references", requests.References, referencesHandler },
|
|
.{ "textDocument/documentHighlight", requests.DocumentHighlight, documentHighlightHandler },
|
|
.{ "textDocument/codeAction", requests.CodeAction, codeActionHandler },
|
|
.{ "workspace/didChangeConfiguration", Config.DidChangeConfigurationParams, didChangeConfigurationHandler },
|
|
};
|
|
|
|
if (zig_builtin.zig_backend == .stage1) {
|
|
// Hack to avoid `return`ing in the inline for, which causes bugs.
|
|
var done: ?anyerror = null;
|
|
inline for (method_map) |method_info| {
|
|
if (done == null and std.mem.eql(u8, method, method_info[0])) {
|
|
if (method_info.len == 1) {
|
|
log.warn("method not mapped: {s}", .{method});
|
|
done = error.HackDone;
|
|
} else if (method_info[1] != void) {
|
|
const ReqT = method_info[1];
|
|
if (requests.fromDynamicTree(&server.arena, ReqT, tree.root)) |request_obj| {
|
|
done = error.HackDone;
|
|
done = extractErr(method_info[2](server, writer, id, request_obj));
|
|
} else |err| {
|
|
if (err == error.MalformedJson) {
|
|
log.warn("Could not create request type {s} from JSON {s}", .{ @typeName(ReqT), json });
|
|
}
|
|
done = err;
|
|
}
|
|
} else {
|
|
done = error.HackDone;
|
|
(method_info[2])(server, writer, id) catch |err| {
|
|
done = err;
|
|
};
|
|
}
|
|
}
|
|
}
|
|
if (done) |err| switch (err) {
|
|
error.MalformedJson => return try respondGeneric(writer, id, null_result_response),
|
|
error.HackDone => return,
|
|
else => return err,
|
|
};
|
|
} else {
|
|
inline for (method_map) |method_info| {
|
|
if (std.mem.eql(u8, method, method_info[0])) {
|
|
if (method_info.len == 1) {
|
|
log.warn("method not mapped: {s}", .{method});
|
|
} else if (method_info[1] != void) {
|
|
const ReqT = method_info[1];
|
|
const request_obj = try requests.fromDynamicTree(&server.arena, ReqT, tree.root);
|
|
method_info[2](server, writer, id, request_obj) catch |err| {
|
|
log.err("failed to process request: {s}", .{@errorName(err)});
|
|
};
|
|
} else {
|
|
method_info[2](server, writer, id) catch |err| {
|
|
log.err("failed to process request: {s}", .{@errorName(err)});
|
|
};
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Boolean value is true if the method is a request (and thus the client
|
|
// needs a response) or false if the method is a notification (in which
|
|
// case it should be silently ignored)
|
|
const unimplemented_map = std.ComptimeStringMap(bool, .{
|
|
.{ "textDocument/codeLens", true },
|
|
.{ "textDocument/documentLink", true },
|
|
.{ "textDocument/rangeFormatting", true },
|
|
.{ "textDocument/onTypeFormatting", true },
|
|
.{ "textDocument/prepareRename", true },
|
|
.{ "textDocument/foldingRange", true },
|
|
.{ "textDocument/selectionRange", true },
|
|
.{ "textDocument/semanticTokens/range", true },
|
|
.{ "workspace/didChangeWorkspaceFolders", false },
|
|
});
|
|
|
|
if (unimplemented_map.get(method)) |request| {
|
|
// TODO: Unimplemented methods, implement them and add them to server capabilities.
|
|
if (request) {
|
|
return try respondGeneric(writer, id, null_result_response);
|
|
}
|
|
|
|
log.debug("Notification method {s} is not implemented", .{method});
|
|
return;
|
|
}
|
|
if (tree.root.Object.get("id")) |_| {
|
|
return try respondGeneric(writer, id, not_implemented_response);
|
|
}
|
|
log.debug("Method without return value not implemented: {s}", .{method});
|
|
}
|
|
|
|
pub fn init(
|
|
allocator: std.mem.Allocator,
|
|
config: *Config,
|
|
config_path: ?[]const u8,
|
|
) !Server {
|
|
// TODO replace global with something like an Analyser struct
|
|
// which contains using_trail & resolve_trail and place it inside Server
|
|
// see: https://github.com/zigtools/zls/issues/536
|
|
analysis.init(allocator);
|
|
|
|
try config.configChanged(allocator, config_path);
|
|
|
|
var document_store = DocumentStore{
|
|
.allocator = allocator,
|
|
.config = config,
|
|
};
|
|
errdefer document_store.deinit();
|
|
|
|
var builtin_completions = try std.ArrayListUnmanaged(types.CompletionItem).initCapacity(allocator, data.builtins.len);
|
|
errdefer builtin_completions.deinit();
|
|
|
|
for (data.builtins) |builtin| {
|
|
const insert_text = if (config.enable_snippets) builtin.snippet else builtin.name;
|
|
builtin_completions.appendAssumeCapacity(.{
|
|
.label = builtin.name,
|
|
.kind = .Function,
|
|
.filterText = builtin.name[1..],
|
|
.detail = builtin.signature,
|
|
.insertText = if (config.include_at_in_builtins) insert_text else insert_text[1..],
|
|
.insertTextFormat = if (config.enable_snippets) .Snippet else .PlainText,
|
|
.documentation = .{
|
|
.kind = .Markdown,
|
|
.value = builtin.documentation,
|
|
},
|
|
});
|
|
}
|
|
|
|
return Server{
|
|
.config = config,
|
|
.allocator = allocator,
|
|
.document_store = document_store,
|
|
.builtin_completions = builtin_completions,
|
|
.status = .uninitialized,
|
|
};
|
|
}
|
|
|
|
pub fn deinit(server: *Server) void {
|
|
server.document_store.deinit();
|
|
analysis.deinit();
|
|
|
|
server.builtin_completions.deinit(server.allocator);
|
|
}
|