Deserialize true/false from 1/0

[TonalidadeHidrica]

It'd be useful to have bool_from_int shown in serde-rs/serde#1344.

[jonasbb]

Hi, thanks for the feedback. Could you please expand more on what exactly your needs are? The linked issue only mentions parsing from 0/1. But there are many variants possible. For integers you could also allow all numbers and check for != 0. Both cases can be covered with serde_with::formats::Strictness. It can be modelled as BoolFromInt<S: Strictness>.

Do you also require parsing strings to bools, something like "t" or "f"?

[TonalidadeHidrica]

For my personal purpose, I expect only the integer 0 to be parsed as false, the integer 1 as true, and any other value as an error. I'm not sure if somebody else or some other purpose call for parsing "0" / "1", 0 / != 0, "true" / "false", "yes" / "no" and so on.

[piavgh]

@jonasbb : after adding BoolFromInt, I can not use parameter true or false anymore (only 0 or 1 works with bool param now)

What should I do to support both ways?

[jonasbb]

@piavgh Please open new issues for help requests and don't post on old topics with unrelated problems.
You can make use of PickFirst, e.g., PickFirst<(_, BoolFromInt)>, but since you don't provide any details of which format you target or what you need for serialization I cannot help you more.

[piavgh]

@piavgh Please open new issues for help requests and don't post on old topics with unrelated problems. You can make use of PickFirst, e.g., PickFirst<(_, BoolFromInt)>, but since you don't provide any details of which format you target or what you need for serialization I cannot help you more.

Thanks, I created a new issue here #631