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incremental: correctly handle losing file root struct_decl inst

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mlugg
2025-01-04 00:06:24 +00:00
parent f818098971
commit fd62912787
1 changed files with 12 additions and 3 deletions
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15
src/Zcu/PerThread.zig
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@@ -545,10 +545,19 @@ pub fn updateZirRefs(pt: Zcu.PerThread) Allocator.Error!void {
pub fn ensureFileAnalyzed(pt: Zcu.PerThread, file_index: Zcu.File.Index) Zcu.SemaError!void {
const file_root_type = pt.zcu.fileRootType(file_index);
if (file_root_type != .none) {
_ = try pt.ensureTypeUpToDate(file_root_type);
} else {
return pt.semaFile(file_index);
if (pt.ensureTypeUpToDate(file_root_type)) |_| {
return;
} else |err| switch (err) {
error.AnalysisFail => {
// The file's root `struct_decl` has, at some point, been lost, because the file failed AstGen.
// Clear `file_root_type`, and try the `semaFile` call below, in case the instruction has since
// been discovered under a new `TrackedInst.Index`.
pt.zcu.setFileRootType(file_index, .none);
},
else => |e| return e,
}
}
return pt.semaFile(file_index);
}
/// Ensures that the state of the given `ComptimeUnit` is fully up-to-date, performing re-analysis