Struct Yaml 

pub struct Yaml(pub Option<Mutation<Value>>);

Available on crate feature yaml only.

YAML adapter for morphix mutation serialization.

Yaml implements the Adapter trait using serde_yaml_ng::Value for both Replace and Append operations. This adapter is available when the yaml feature is enabled.

Example

use morphix::adapter::Yaml;
use morphix::{Observe, observe};
use serde::Serialize;

#[derive(Serialize, Observe)]
struct Config {
    host: String,
    port: u16,
    tags: Vec<String>,
}

let mut config = Config {
    host: "localhost".to_string(),
    port: 8080,
    tags: vec!["web".to_string()],
};

let Yaml(mutation) = observe!(config => {
    config.port = 8081;
    config.tags.push("api".to_string());
}).unwrap();

Tuple Fields

0: Option<Mutation<Value>>

Trait Implementations

impl Adapter for Yaml

type Value = Value

Type used to represent Replace and Append values.

type Error = Error

Error type for serialization / deserialization operations.

fn from_mutation(mutation: Option<Mutation<Self::Value>>) -> Self

Constructs the adapter from an optional mutation.

fn serialize_value<T: Serialize + ?Sized>( value: &T, ) -> Result<Self::Value, Self::Error>

Serializes a value into the adapter’s Value type.

fn get_mut<'a>( value: &'a mut Self::Value, segment: &PathSegment, allow_create: bool, ) -> Option<&'a mut Self::Value>

Gets a mutable reference to a nested value by path segment.

fn append(value: &mut Self::Value, append_value: Self::Value) -> Option<usize>

Available on crate feature append only.

Appends a value to the end of another value.

fn len(value: &Self::Value) -> Option<usize>

Available on crate feature append only.

Returns the appendable length of a value.

fn truncate(value: &mut Self::Value, truncate_len: usize) -> Option<usize>

Available on crate feature truncate only.

Truncates a value by removing elements from the end.

fn mutate( value: &mut Self::Value, mutation: Mutation<Self::Value>, path_stack: &mut Path<false>, ) -> Result<(), MutationError>

Applies a Mutation to an existing value.

impl Clone for Yaml

fn clone(&self) -> Yaml

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Yaml

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

Formats the value using the given formatter.

impl PartialEq for Yaml

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Yaml

impl StructuralPartialEq for Yaml