Enum Policy 

pub(crate) enum Policy {
    Allow(Target),
    AllowSilent(Target),
    Warn(Target),
    Error(Target),
}

This policy determines what diagnostics should be emitted based on the Target of the attribute.

Variants

Allow(Target)

A target that is allowed.

AllowSilent(Target)

A target that is allowed and not listed in the possible targets. This is useful if the target is checked elsewhere.

Warn(Target)

Emits a FCW on this target. This is useful if the target was previously allowed but should not be.

Error(Target)

Emits an error on this target.

Trait Implementations

impl Debug for Policy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Policy

fn eq(&self, other: &Policy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Policy

impl StructuralPartialEq for Policy

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: 3 bytes

Size for each variant:

• Allow: 2 bytes
• AllowSilent: 2 bytes
• Warn: 2 bytes
• Error: 2 bytes