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use semver::VersionReq;
use rustc_serialize::{Encoder, Encodable};
use core::{SourceId, Summary, PackageId};
use std::rc::Rc;
use util::CargoResult;
#[derive(PartialEq,Clone,Debug)]
pub struct DependencyInner {
name: String,
source_id: SourceId,
req: VersionReq,
specified_req: Option<String>,
kind: Kind,
only_match_name: bool,
optional: bool,
default_features: bool,
features: Vec<String>,
only_for_platform: Option<String>,
}
#[derive(PartialEq,Clone,Debug)]
pub struct Dependency {
inner: Rc<DependencyInner>,
}
#[derive(RustcEncodable)]
struct SerializedDependency {
name: String,
req: String
}
impl Encodable for Dependency {
fn encode<S: Encoder>(&self, s: &mut S) -> Result<(), S::Error> {
SerializedDependency {
name: self.name().to_string(),
req: self.version_req().to_string()
}.encode(s)
}
}
#[derive(PartialEq, Clone, Debug, Copy)]
pub enum Kind {
Normal,
Development,
Build,
}
impl DependencyInner {
pub fn parse(name: &str,
version: Option<&str>,
source_id: &SourceId) -> CargoResult<DependencyInner> {
let version_req = match version {
Some(v) => try!(VersionReq::parse(v)),
None => VersionReq::any()
};
Ok(DependencyInner {
only_match_name: false,
req: version_req,
specified_req: version.map(|s| s.to_string()),
.. DependencyInner::new_override(name, source_id)
})
}
pub fn new_override(name: &str, source_id: &SourceId) -> DependencyInner {
DependencyInner {
name: name.to_string(),
source_id: source_id.clone(),
req: VersionReq::any(),
kind: Kind::Normal,
only_match_name: true,
optional: false,
features: Vec::new(),
default_features: true,
specified_req: None,
only_for_platform: None,
}
}
pub fn version_req(&self) -> &VersionReq { &self.req }
pub fn name(&self) -> &str { &self.name }
pub fn source_id(&self) -> &SourceId { &self.source_id }
pub fn kind(&self) -> Kind { self.kind }
pub fn specified_req(&self) -> Option<&str> {
self.specified_req.as_ref().map(|s| &s[..])
}
pub fn only_for_platform(&self) -> Option<&str> {
self.only_for_platform.as_ref().map(|s| &s[..])
}
pub fn set_kind(mut self, kind: Kind) -> DependencyInner {
self.kind = kind;
self
}
pub fn set_features(mut self, features: Vec<String>) -> DependencyInner {
self.features = features;
self
}
pub fn set_default_features(mut self, default_features: bool) -> DependencyInner {
self.default_features = default_features;
self
}
pub fn set_optional(mut self, optional: bool) -> DependencyInner {
self.optional = optional;
self
}
pub fn set_source_id(mut self, id: SourceId) -> DependencyInner {
self.source_id = id;
self
}
pub fn set_version_req(mut self, req: VersionReq) -> DependencyInner {
self.req = req;
self
}
pub fn set_only_for_platform(mut self, platform: Option<String>)
-> DependencyInner {
self.only_for_platform = platform;
self
}
pub fn lock_to(self, id: &PackageId) -> DependencyInner {
assert_eq!(self.source_id, *id.source_id());
assert!(self.req.matches(id.version()));
self.set_version_req(VersionReq::exact(id.version()))
.set_source_id(id.source_id().clone())
}
pub fn is_transitive(&self) -> bool {
match self.kind {
Kind::Normal | Kind::Build => true,
Kind::Development => false,
}
}
pub fn is_build(&self) -> bool {
match self.kind { Kind::Build => true, _ => false }
}
pub fn is_optional(&self) -> bool { self.optional }
pub fn uses_default_features(&self) -> bool { self.default_features }
pub fn features(&self) -> &[String] { &self.features }
pub fn matches(&self, sum: &Summary) -> bool {
self.matches_id(sum.package_id())
}
pub fn matches_id(&self, id: &PackageId) -> bool {
self.name == id.name() &&
(self.only_match_name || (self.req.matches(id.version()) &&
&self.source_id == id.source_id()))
}
pub fn into_dependency(self) -> Dependency {
Dependency {inner: Rc::new(self)}
}
}
impl Dependency {
pub fn parse(name: &str,
version: Option<&str>,
source_id: &SourceId) -> CargoResult<Dependency> {
DependencyInner::parse(name, version, source_id).map(|di| {
di.into_dependency()
})
}
pub fn new_override(name: &str, source_id: &SourceId) -> Dependency {
DependencyInner::new_override(name, source_id).into_dependency()
}
pub fn clone_inner(&self) -> DependencyInner { (*self.inner).clone() }
pub fn version_req(&self) -> &VersionReq { self.inner.version_req() }
pub fn name(&self) -> &str { self.inner.name() }
pub fn source_id(&self) -> &SourceId { self.inner.source_id() }
pub fn kind(&self) -> Kind { self.inner.kind() }
pub fn specified_req(&self) -> Option<&str> { self.inner.specified_req() }
pub fn only_for_platform(&self) -> Option<&str> {
self.inner.only_for_platform()
}
pub fn lock_to(self, id: &PackageId) -> Dependency {
self.clone_inner().lock_to(id).into_dependency()
}
pub fn is_transitive(&self) -> bool { self.inner.is_transitive() }
pub fn is_build(&self) -> bool { self.inner.is_build() }
pub fn is_optional(&self) -> bool { self.inner.is_optional() }
pub fn uses_default_features(&self) -> bool {
self.inner.uses_default_features()
}
pub fn features(&self) -> &[String] { self.inner.features() }
pub fn matches(&self, sum: &Summary) -> bool { self.inner.matches(sum) }
pub fn matches_id(&self, id: &PackageId) -> bool {
self.inner.matches_id(id)
}
}