Enum rustc_mir_build::build::expr::category::Category

pub(crate) enum Category {
    Place,
    Constant,
    Rvalue(RvalueFunc),
}

Variants

Place

An assignable memory location like x, x.f, foo()[3], that sort of thing. Something that could appear on the LHS of an = sign.

Constant

A literal like 23 or "foo". Does not include constant expressions like 3 + 5.

Rvalue(RvalueFunc)

Something that generates a new value at runtime, like x + y or foo().

Implementations

impl Category

pub(crate) fn of(ek: &ExprKind<'_>) -> Option<Category>

Determines the category for a given expression. Note that scope and paren expressions have no category.

Trait Implementations

impl Debug for Category

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

Formats the value using the given formatter.

impl PartialEq for Category

fn eq(&self, other: &Category) -> 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 StructuralPartialEq for Category

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: 1 byte

Size for each variant:

• Place: 0 bytes
• Constant: 0 bytes
• Rvalue: 1 byte