Struct guppy::CargoMetadata

pub struct CargoMetadata(_);

Deserialized Cargo metadata.

Returned by a MetadataCommand or constructed from cargo metadata JSON output.

This is an alternative entry point for constructing a PackageGraph, to be used if the JSON output of cargo metadata is already available. To construct a PackageGraph from an on-disk Cargo workspace, use MetadataCommand.

This struct implements serde::Serialize and Deserialize.

Implementations

impl CargoMetadata

pub fn parse_json(json: impl AsRef<str>) -> Result<Self, Error>

Deserializes this JSON blob into a CargoMetadata.

pub fn serialize(&self, writer: &mut impl Write) -> Result<(), Error>

Serializes this metadata into the given writer.

pub fn build_graph(self) -> Result<PackageGraph, Error>

Parses this metadata and builds a PackageGraph from it.

Trait Implementations

impl Clone for CargoMetadata

fn clone(&self) -> CargoMetadata

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CargoMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CargoMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Serialize for CargoMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl TryFrom<CargoMetadata> for PackageGraph

type Error = Error

The type returned in the event of a conversion error.

fn try_from(metadata: CargoMetadata) -> Result<Self, Self::Error>

Performs the conversion.