Trait ConfigValue 

pub trait ConfigValue: Clone {
    type Object: ConfigObject<Self>;

    // Required methods
    fn kind(&self) -> &'static str;
    fn as_object(&self) -> Option<&Self::Object>;
    fn as_object_mut(&mut self) -> Option<&mut Self::Object>;
    fn into_object(self) -> Result<Self::Object, Self>;
    fn as_array(&self) -> Option<&[Self]>;
    fn as_str(&self) -> Option<&str>;
    fn object(object: Self::Object) -> Self;
    fn array(items: Vec<Self>) -> Self;
    fn string(text: String) -> Self;
    fn stringify(&self) -> Option<String>;
}

Structural operations on a native configuration value.

Scalars stay opaque to merge and traversal. Implementations classify integers and floats as number, and render scalars without quoting strings.

Required Associated Types

type Object: ConfigObject<Self>

The native object type.

Required Methods

fn kind(&self) -> &'static str

A diagnostic kind: object, array, string, number, bool, null or datetime.

fn as_object(&self) -> Option<&Self::Object>

Borrow an object, if this is one.

fn as_object_mut(&mut self) -> Option<&mut Self::Object>

Mutably borrow an object, if this is one.

fn into_object(self) -> Result<Self::Object, Self>

Consume an object; return the original value for any other kind.

fn as_array(&self) -> Option<&[Self]>

Borrow an array, if this is one.

fn as_str(&self) -> Option<&str>

Borrow a string, if this is one.

fn object(object: Self::Object) -> Self

Wrap a native object.

fn array(items: Vec<Self>) -> Self

Construct an array.

fn string(text: String) -> Self

Construct a string.

fn stringify(&self) -> Option<String>

Render a scalar for an embedded reference. Containers and null reject. Finite floats keep Rust float spelling; serializers may use another spelling.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ConfigValue for Value

type Object = Map<String, Value>

fn kind(&self) -> &'static str

fn as_object(&self) -> Option<&<Self as ConfigValue>::Object>

fn as_object_mut(&mut self) -> Option<&mut <Self as ConfigValue>::Object>

fn into_object(self) -> Result<<Self as ConfigValue>::Object, Self>

fn as_array(&self) -> Option<&[Self]>

fn as_str(&self) -> Option<&str>

fn object(object: <Self as ConfigValue>::Object) -> Self

fn array(items: Vec<Self>) -> Self

fn string(text: String) -> Self

fn stringify(&self) -> Option<String>

impl ConfigValue for Value

type Object = Map<String, Value>

fn kind(&self) -> &'static str

fn as_object(&self) -> Option<&Self::Object>

fn as_object_mut(&mut self) -> Option<&mut Self::Object>

fn into_object(self) -> Result<Self::Object, Self>

fn as_array(&self) -> Option<&[Self]>

fn as_str(&self) -> Option<&str>

fn object(object: Self::Object) -> Self

fn array(items: Vec<Self>) -> Self

fn string(text: String) -> Self

fn stringify(&self) -> Option<String>

Implementors