Enum Condition 

pub enum Condition<'a> {
    Flag(&'a str),
    OS(&'a str),
    Arch(&'a str),
    Impl(&'a str, Option<VersionRange>),
    Not(Box<Condition<'a>>),
    And(Box<Condition<'a>>, Box<Condition<'a>>),
    Or(Box<Condition<'a>>, Box<Condition<'a>>),
    Lit(bool),
    Raw(&'a str),
}

A parsed condition expression from if/elif blocks.

Variants

Flag(&'a str)

flag(name)

OS(&'a str)

os(name)

Arch(&'a str)

arch(name)

Impl(&'a str, Option<VersionRange>)

impl(compiler version-range)

Not(Box<Condition<'a>>)

!condition

And(Box<Condition<'a>>, Box<Condition<'a>>)

a && b

Or(Box<Condition<'a>>, Box<Condition<'a>>)

a || b

Lit(bool)

Boolean literal: true or false

Raw(&'a str)

Unparsed fallback when the condition couldn’t be fully parsed.

Trait Implementations

impl<'a> Clone for Condition<'a>

fn clone(&self) -> Condition<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for Condition<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for Condition<'a>

fn eq(&self, other: &Condition<'a>) -> 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<'a> Eq for Condition<'a>

impl<'a> StructuralPartialEq for Condition<'a>