Struct Requires 

pub struct Requires {
    pub protocol: Option<VersionConstraint>,
    pub capabilities: Vec<(String, VersionConstraint)>,
}

Extension schema version requirements (requires field).

Declares minimum (and optionally maximum) protocol and capability versions needed for correct operation.

Fields

protocol: Option<VersionConstraint>

capabilities: Vec<(String, VersionConstraint)>

Implementations

impl Requires

pub fn parse(value: &Value) -> Result<Self, Vec<String>>

Parse from a JSON value: the top-level requires object.

Trait Implementations

impl Clone for Requires

fn clone(&self) -> Requires

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Requires

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

Formats the value using the given formatter.

impl Default for Requires

fn default() -> Requires

Returns the “default value” for a type.

impl Eq for Requires

impl PartialEq for Requires

fn eq(&self, other: &Requires) -> 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 StructuralPartialEq for Requires