Enum Layout 

#[non_exhaustive]
pub enum Layout {
    Default,
    SerdeYaml,
}

Overall output layout.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Default

oneyaml’s own layout: the defaults.

SerdeYaml

Reproduce serde_yaml’s output layout, best effort (checked against serde_yaml_ng). Set by Compat::serde_yaml().

Known divergences (each a deliberate choice: correctness first; the oracles crate’s serde_yaml_compat test keeps this list exact):

1. Nested enums: serde_yaml refuses a newtype variant around another variant (“serializing nested enums in YAML is not supported yet”); oneyaml writes the outer one as Name: !Inner ..., which reads back.
2. Enum around a scalar: serde_yaml writes a newtype variant around a number, bool, or null as !Name 1; a custom-tagged scalar always reads back as a string, so oneyaml writes Name: 1, which both libraries read back as the variant.
3. Root indentation indicator: a root string whose first line starts with a space or a line break needs a block indentation indicator; libyaml counts it from 0 (|2) where YAML 1.2 counts from -1 (§8.1.1.1), so readers disagree and oneyaml double-quotes it instead.
4. U+2028/U+2029: libyaml writes them as line breaks inside single quotes, which YAML 1.2 readers read as other text; oneyaml double-quotes them as \L/\P.
5. char: serde_yaml always single-quotes a char; oneyaml’s data model keeps a char as a string, quoted only when needed.
6. f32 layout: serde_yaml lays out an f32 with ryu’s f32 thresholds (1e14); oneyaml keeps floats as f64 and uses the f64 thresholds (100000000000000.0): same digits, same value.

Trait Implementations

impl Clone for Layout

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Layout

impl Debug for Layout

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Layout

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Layout

impl Hash for Layout

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Layout

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Layout