Enum Tool 

pub enum Tool {
    Rust,
    Xcode,
    Ndk,
    Msvc,
}

The fixed set of toolchains QED knows how to probe on the host. An unrecognized pin key (zig, emsdk, …) is still carried through resolution — it just resolves to PinResolution::Unverifiable when the step runs host-side, since QED has no probe for it.

Variants

Rust

Rust toolchain — probed via rustc --version (rustup-managed).

Xcode

Apple Xcode — probed via xcodebuild -version (xcrun-selected).

Ndk

Android NDK — probed via $ANDROID_NDK_HOME/source.properties.

Msvc

MSVC build tools — probed via vswhere (Windows only).

Implementations

impl Tool

pub fn parse(name: &str) -> Option<Tool>

Map a pin key to a known Tool. Case-insensitive on the bare tool name. Returns None for keys outside the probe set.

pub fn probe_version(&self) -> Option<String>

Probe the host for this tool’s installed version, returning None when the tool isn’t found (not installed, wrong platform, or no version could be parsed). Best-effort and side-effect-free beyond reading the environment / running a --version query; the rigor lives in the pure resolve_pin decision function this feeds.

Trait Implementations

impl Clone for Tool

fn clone(&self) -> Tool

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Tool

impl Debug for Tool

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

Formats the value using the given formatter.

impl Eq for Tool

impl Hash for Tool

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Tool

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Tool