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Add a singleton_map module for serde's 'with' attribute #300

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merged 1 commit into from Aug 2, 2022
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@dtolnay dtolnay commented Aug 2, 2022

#[derive(Serialize, Deserialize)]
struct Struct {
    #[serde(with = "serde_yaml::with::singleton_map")]
    e: Enum,
}

will represent that field as a 1-element map variant: {contents} instead of the default tag-based representation !variant {contents}.

@dtolnay dtolnay merged commit f3504fb into master Aug 2, 2022
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@dtolnay dtolnay deleted the with branch Aug 2, 2022
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