Fix potential crash when deserializing Dictionary<T, U> where T is an enum#58
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SamboyCoding merged 1 commit intoSamboyCoding:masterfrom Dec 24, 2025
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Previously, invalid enum keys would often crash the program when trying to add the same key twice. However, it may not be ideal for us to even add invalid keys to a Dictionary; so I've provided an option that allows the user to skip these fields from being added entirely. In the case of Ignore, it will still set it to the first enum value as it did before - but it will no longer crash when trying to add the same key multiple times (in the case where multiple invalid keys were found, or a valid key at the first enumerator also exists)
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SamboyCoding
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Dec 24, 2025
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In the case where a TomlField is being applied to a Dictionary with enum keys, there is a possibility for an exception to be thrown that can't be handled well if an invalid enum key exists in the TOML data.
Reproduction:
(with
IgnoreInvalidEnumValuesset to true)a. Parse a TOML string with multiple invalid keys
b. Parse a TOML string with one invalid key, and at least one other valid key at the default value
Result:
a. An key is added at the default (0) value with the invalid enum's value, which is hard to detect
b. An exception is thrown when a valid key at the default (0) value also exists
c. An exception is thrown when multiple invalid keys are found
Expected:
Invalid keys should not be added to the dictionary, multiple keys should never happen
Changes in this PR: