Struct cargo::core::PackageIdSpec

source ·
pub struct PackageIdSpec {
    name: InternedString,
    version: Option<Version>,
    url: Option<Url>,
}
Expand description

Some or all of the data required to identify a package:

  1. the package name (a String, required)
  2. the package version (a Version, optional)
  3. the package source (a Url, optional)

If any of the optional fields are omitted, then the package ID may be ambiguous, there may be more than one package/version/url combo that will match. However, often just the name is sufficient to uniquely define a package ID.

Fields§

§name: InternedString§version: Option<Version>§url: Option<Url>

Implementations§

Parses a spec string and returns a PackageIdSpec if the string was valid.

Examples

Some examples of valid strings

use cargo::core::PackageIdSpec;

let specs = vec![
    "https://crates.io/foo",
    "https://crates.io/foo#1.2.3",
    "https://crates.io/foo#bar:1.2.3",
    "https://crates.io/foo#bar@1.2.3",
    "foo",
    "foo:1.2.3",
    "foo@1.2.3",
];
for spec in specs {
    assert!(PackageIdSpec::parse(spec).is_ok());
}

Roughly equivalent to PackageIdSpec::parse(spec)?.query(i)

Convert a PackageId to a PackageIdSpec, which will have both the Version and Url fields filled in.

Tries to convert a valid Url to a PackageIdSpec.

Checks whether the given PackageId matches the PackageIdSpec.

Checks a list of PackageIds to find 1 that matches this PackageIdSpec. If 0, 2, or more are found, then this returns an error.

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Deserialize this value from the given Serde deserializer. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==.
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Compare self to key and return true if they are equal.

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Should always be Self
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 144 bytes