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Unify the Hashable implementation for all ReferenceTypes

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This commit is contained in:
Matt Rubin 2019-04-12 15:15:20 -04:00
parent fb6020ad08
commit 00014ab96f
1 changed files with 10 additions and 24 deletions
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34
SwiftGit2/References.swift
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@ -25,6 +25,13 @@ public func ==<T: ReferenceType>(lhs: T, rhs: T) -> Bool {
&& lhs.oid == rhs.oid && lhs.oid == rhs.oid
} }
public extension ReferenceType {
func hash(into hasher: inout Hasher) {
hasher.combine(longName)
hasher.combine(oid)
}
}
/// Create a Reference, Branch, or TagReference from a libgit2 `git_reference`. /// Create a Reference, Branch, or TagReference from a libgit2 `git_reference`.
internal func referenceWithLibGit2Reference(_ pointer: OpaquePointer) -> ReferenceType { internal func referenceWithLibGit2Reference(_ pointer: OpaquePointer) -> ReferenceType {
if git_reference_is_branch(pointer) != 0 || git_reference_is_remote(pointer) != 0 { if git_reference_is_branch(pointer) != 0 || git_reference_is_remote(pointer) != 0 {
@ -37,7 +44,7 @@ internal func referenceWithLibGit2Reference(_ pointer: OpaquePointer) -> Referen
} }
/// A generic reference to a git object. /// A generic reference to a git object.
public struct Reference: ReferenceType { public struct Reference: ReferenceType, Hashable {
/// The full name of the reference (e.g., `refs/heads/master`). /// The full name of the reference (e.g., `refs/heads/master`).
public let longName: String public let longName: String
@ -56,15 +63,8 @@ public struct Reference: ReferenceType {
} }
} }
extension Reference: Hashable {
public func hash(into hasher: inout Hasher) {
hasher.combine(longName)
hasher.combine(oid)
}
}
/// A git branch. /// A git branch.
public struct Branch: ReferenceType { public struct Branch: ReferenceType, Hashable {
/// The full name of the reference (e.g., `refs/heads/master`). /// The full name of the reference (e.g., `refs/heads/master`).
public let longName: String public let longName: String
@ -122,15 +122,8 @@ public struct Branch: ReferenceType {
} }
} }
extension Branch: Hashable {
public func hash(into hasher: inout Hasher) {
hasher.combine(longName)
hasher.combine(oid)
}
}
/// A git tag reference, which can be either a lightweight tag or a Tag object. /// A git tag reference, which can be either a lightweight tag or a Tag object.
public enum TagReference: ReferenceType { public enum TagReference: ReferenceType, Hashable {
/// A lightweight tag, which is just a name and an OID. /// A lightweight tag, which is just a name and an OID.
case lightweight(String, OID) case lightweight(String, OID)
@ -194,10 +187,3 @@ public enum TagReference: ReferenceType {
git_object_free(pointer) git_object_free(pointer)
} }
} }
extension TagReference: Hashable {
public func hash(into hasher: inout Hasher) {
hasher.combine(longName)
hasher.combine(oid)
}
}