Struct RequestedStandards 

pub struct RequestedStandards {
    pub c: BTreeSet<CStandard>,
    pub cxx: BTreeSet<CxxStandard>,
}

The set of language standards a build’s compiles request, per language. A language’s set is empty iff no compile of that language exists, which is the signal the C-compiler checks key on.

The authoritative form is requested_standards_of, derived from a planned crate::BuildGraph so it covers exactly the compiles the build will run - no more (an unbuilt sibling target must not gate validation) and no less. collect_requested_standards is the pre-plan package-level approximation used only where a value is needed before planning (the MSVC /external:I fallback decision).

Fields

c: BTreeSet<CStandard>

cxx: BTreeSet<CxxStandard>

Implementations

impl RequestedStandards

pub fn has_c_sources(&self) -> bool

Whether any selected target compiles a .c source - the signal that scopes the C-compiler checks.

Trait Implementations

impl Clone for RequestedStandards

fn clone(&self) -> RequestedStandards

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RequestedStandards

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

Formats the value using the given formatter.

impl Default for RequestedStandards

fn default() -> RequestedStandards

Returns the “default value” for a type.

impl Eq for RequestedStandards

impl PartialEq for RequestedStandards

fn eq(&self, other: &RequestedStandards) -> 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 RequestedStandards