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use crate::PackageId;
use cargo_metadata::DependencyKind;
use petgraph::prelude::*;
use std::fmt;
mod build;
mod cycles;
#[doc(hidden)]
pub mod feature;
mod graph_impl;
#[cfg(feature = "proptest09")]
mod proptest09;
mod query;
mod query_core;
mod resolve;
mod resolve_core;
pub use crate::petgraph_support::dot::DotWrite;
pub use cycles::*;
pub use graph_impl::*;
use once_cell::sync::Lazy;
use petgraph::graph::IndexType;
#[cfg(feature = "proptest09")]
pub use proptest09::*;
pub use query::*;
pub use resolve::*;
use semver::{Version, VersionReq};
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
#[cfg_attr(feature = "proptest09", derive(proptest_derive::Arbitrary))]
pub enum DependencyDirection {
Forward,
Reverse,
}
impl DependencyDirection {
pub fn opposite(self) -> Self {
match self {
DependencyDirection::Forward => DependencyDirection::Reverse,
DependencyDirection::Reverse => DependencyDirection::Forward,
}
}
}
impl From<Direction> for DependencyDirection {
fn from(direction: Direction) -> Self {
match direction {
Direction::Outgoing => DependencyDirection::Forward,
Direction::Incoming => DependencyDirection::Reverse,
}
}
}
impl From<DependencyDirection> for Direction {
fn from(direction: DependencyDirection) -> Self {
match direction {
DependencyDirection::Forward => Direction::Outgoing,
DependencyDirection::Reverse => Direction::Incoming,
}
}
}
#[derive(Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
struct PackageIx(u32);
#[derive(Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
struct FeatureIx(u32);
macro_rules! graph_ix {
($ix_type: ident) => {
impl fmt::Display for $ix_type {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.0)
}
}
unsafe impl IndexType for $ix_type {
#[inline(always)]
fn new(x: usize) -> Self {
$ix_type(x as u32)
}
#[inline(always)]
fn index(&self) -> usize {
self.0 as usize
}
#[inline(always)]
fn max() -> Self {
$ix_type(::std::u32::MAX)
}
}
};
}
graph_ix!(PackageIx);
graph_ix!(FeatureIx);
trait GraphSpec {
type Node;
type Edge;
type Ix: IndexType;
}
impl GraphSpec for PackageGraph {
type Node = PackageId;
type Edge = PackageEdge;
type Ix = PackageIx;
}
impl<'g> GraphSpec for feature::FeatureGraph<'g> {
type Node = feature::FeatureNode;
type Edge = feature::FeatureEdge;
type Ix = FeatureIx;
}
pub(crate) fn kind_str(kind: DependencyKind) -> &'static str {
match kind {
DependencyKind::Normal => "normal",
DependencyKind::Build => "build",
DependencyKind::Development => "dev",
_ => "unknown",
}
}
fn cargo_version_matches(req: &VersionReq, version: &Version) -> bool {
static MAJOR_WILDCARD: Lazy<VersionReq> = Lazy::new(|| VersionReq::parse("*").unwrap());
req == &*MAJOR_WILDCARD || req.matches(version)
}