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authorWeihang Lo <me@weihanglo.tw>2025-01-24 19:08:32 -0500
committerWeihang Lo <me@weihanglo.tw>2025-01-24 19:08:32 -0500
commit5f8bcec6c8e006f0b73b9bff076299f77d6c166c (patch)
tree9d5166dddf3489a2ef0163e6089f4c1939d8d863 /compiler/rustc_data_structures/src
parent1e9b0177da38e3f421a3b9b1942f1777d166e06a (diff)
downloadrust-5f8bcec6c8e006f0b73b9bff076299f77d6c166c.tar.gz
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fix(bootstrap): deserialize null as `f64::NAN`
When doing optimized build through opt-dist,
I've often run into errors like `invalid type: null, expected f64`.
This is likely because some f64 fields might actually bet set null.
Unfortunately, serde_json doesn't handle null <-> NaN well.

This commit addresses it by having a custom deserialize method, so
null is always be deserialized to `f64:NAN`.

See:

* https://rust-lang.zulipchat.com/#narrow/channel/242791-t-infra/topic/opt-dist.3A.20.60invalid.20type.3A.20null.2C.20expect.20f64.60.20failure
* https://github.com/serde-rs/json/issues/202
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