pub enum CompileKind {
    Host,
    Target(CompileTarget),
}
Expand description

Indicator for how a unit is being compiled.

This is used primarily for organizing cross compilations vs host compilations, where cross compilations happen at the request of --target and host compilations happen for things like build scripts and procedural macros.

Variants§

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Host

Attached to a unit that is compiled for the “host” system or otherwise is compiled without a --target flag. This is used for procedural macros and build scripts, or if the --target flag isn’t passed.

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Target(CompileTarget)

Attached to a unit to be compiled for a particular target. This is used for units when the --target flag is passed.

Implementations§

Creates a new list of CompileKind based on the requested list of targets.

If no targets are given then this returns a single-element vector with CompileKind::Host.

Hash used for fingerprinting.

Metadata hashing uses the normal Hash trait, which does not differentiate on .json file contents. The fingerprint hash does check the contents.

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
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
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: 16 bytes

Size for each variant:

  • Host: 0 bytes
  • Target: 16 bytes