Struct BuildDescription 

pub struct BuildDescription {
    pub features: Vec<String>,
    pub cfgs: Vec<String>,
}

The conditions a tree’s code is analyzed under.

What belongs here is what changes the answers rather than what changes the build: two runs that resolve the same names to the same things are one variant however differently they were invoked, and two that do not are two however alike the command line looked.

Empty on both counts when the helper found no project to describe. That is not the same claim as a project that enables nothing — a described build always has settings, because the target alone supplies a dozen — so nothing has to be spelled to tell the two apart.

Fields

features: Vec<String>

Enabled features, each qualified by the package that enables it.

Qualified because a feature is declared per package: serde/derive and ledger/derive are unrelated facts, and an unqualified list would let one package’s selection stand in for another’s.

cfgs: Vec<String>

The conditional-compilation settings the code is read under, as the compiler spells them.

Trait Implementations

impl Clone for BuildDescription

fn clone(&self) -> BuildDescription

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuildDescription

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

Formats the value using the given formatter.

impl Default for BuildDescription

fn default() -> BuildDescription

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BuildDescription

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for BuildDescription

impl PartialEq for BuildDescription

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for BuildDescription

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for BuildDescription