| 1 | //! Minimal formatter CLI via `zig build format -- filepath` |
| 2 | //! Use this only for working on the formatter. |
| 3 | |
| 4 | pub fn main() !u8 { |
| 5 | try core.unicode_props.init(); |
| 6 | |
| 7 | const use_gpa = @import("builtin").mode == .Debug; |
| 8 | var gpa = if (use_gpa) |
| 9 | std.heap.GeneralPurposeAllocator(.{ |
| 10 | .stack_trace_frames = 100, |
| 11 | }){} |
| 12 | else |
| 13 | std.heap.ArenaAllocator.init(std.heap.page_allocator); |
| 14 | defer _ = if (use_gpa) gpa.deinit(); |
| 15 | const alloc = gpa.allocator(); |
| 16 | |
| 17 | var args = try std.process.argsWithAllocator(alloc); |
| 18 | defer args.deinit(); |
| 19 | |
| 20 | _ = args.skip(); |
| 21 | const file_path = args.next() orelse { |
| 22 | std.debug.print("Missing filepath argument\n", .{}); |
| 23 | return 1; |
| 24 | }; |
| 25 | |
| 26 | const code = try std.fs.cwd() |
| 27 | .readFileAllocOptions(alloc, file_path, std.math.maxInt(u32), null, @alignOf(u8), 0); |
| 28 | defer alloc.free(code); |
| 29 | |
| 30 | var err_data: core.Parse.AstError.WithTrace = undefined; |
| 31 | var ast = core.Parse.parse( |
| 32 | alloc, |
| 33 | code, |
| 34 | &err_data, |
| 35 | ) catch |err| switch (err) { |
| 36 | error.OutOfMemory => return err, |
| 37 | error.ParseFail => { |
| 38 | var report = try err_data.toReport(alloc); |
| 39 | defer report.deinit(alloc); |
| 40 | |
| 41 | report.dump( |
| 42 | .{ .single_file = .{ |
| 43 | .allocator = alloc, |
| 44 | .url = file_path, |
| 45 | .file = .{ .utf8_source = code }, |
| 46 | } }, |
| 47 | .getStderr(), |
| 48 | ) catch {}; |
| 49 | |
| 50 | return err; |
| 51 | }, |
| 52 | }; |
| 53 | defer ast.deinit(alloc); |
| 54 | |
| 55 | const stdout = std.io.getStdOut(); |
| 56 | try Format.format(ast, stdout.writer().any()); |
| 57 | |
| 58 | return 0; |
| 59 | } |
| 60 | |
| 61 | const std = @import("std"); |
| 62 | const core = @import("core"); |
| 63 | const Format = @import("format"); |