1//! Utilities shared between compiler sub-commands
2const std = @import("std");
3const aro = @import("aro");
4const ErrorBundle = std.zig.ErrorBundle;
5
6pub fn aroDiagnosticsToErrorBundle(
7 d: *const aro.Diagnostics,
8 gpa: std.mem.Allocator,
9 fail_msg: ?[]const u8,
10) !ErrorBundle {
11 @branchHint(.cold);
12
13 var bundle: ErrorBundle.Wip = undefined;
14 try bundle.init(gpa);
15 errdefer bundle.deinit();
16
17 if (fail_msg) |msg| {
18 try bundle.addRootErrorMessage(.{
19 .msg = try bundle.addString(msg),
20 });
21 }
22
23 var cur_err: ?ErrorBundle.ErrorMessage = null;
24 var cur_notes: std.ArrayList(ErrorBundle.ErrorMessage) = .empty;
25 defer cur_notes.deinit(gpa);
26 for (d.output.to_list.messages.items) |msg| {
27 switch (msg.kind) {
28 .off, .warning => {
29 // Emit any pending error and clear everything so that notes don't bleed into unassociated errors
30 if (cur_err) |err| {
31 try bundle.addRootErrorMessageWithNotes(err, cur_notes.items);
32 cur_err = null;
33 }
34 cur_notes.clearRetainingCapacity();
35 continue;
36 },
37 .note => if (cur_err == null) continue,
38 .@"fatal error", .@"error" => {},
39 }
40
41 const src_loc = src_loc: {
42 if (msg.location) |location| {
43 break :src_loc try bundle.addSourceLocation(.{
44 .src_path = try bundle.addString(location.path),
45 .line = location.line_no - 1, // 1-based -> 0-based
46 .column = location.col - 1, // 1-based -> 0-based
47 .span_start = location.width,
48 .span_main = location.width,
49 .span_end = location.width,
50 .source_line = try bundle.addString(location.line),
51 });
52 }
53 break :src_loc ErrorBundle.SourceLocationIndex.none;
54 };
55
56 switch (msg.kind) {
57 .@"fatal error", .@"error" => {
58 if (cur_err) |err| {
59 try bundle.addRootErrorMessageWithNotes(err, cur_notes.items);
60 }
61 cur_err = .{
62 .msg = try bundle.addString(msg.text),
63 .src_loc = src_loc,
64 };
65 cur_notes.clearRetainingCapacity();
66 },
67 .note => {
68 cur_err.?.notes_len += 1;
69 try cur_notes.append(gpa, .{
70 .msg = try bundle.addString(msg.text),
71 .src_loc = src_loc,
72 });
73 },
74 .off, .warning => unreachable,
75 }
76 }
77 if (cur_err) |err| {
78 try bundle.addRootErrorMessageWithNotes(err, cur_notes.items);
79 }
80
81 return try bundle.toOwnedBundle("");
82}