Enum Prim 

pub enum Prim {
    Bool,
    I8,
    I16,
    I32,
    I64,
    U8,
    U16,
    U32,
    U64,
    F32,
    F64,
    String,
    Bytes,
}

A built-in primitive type: the fixed vocabulary the IDL’s TypeRef and the resolved Ty share.

Adding a primitive means adding a variant here; every classification (Ty::family, Ty::wire, the C ABI lowering) dispatches on it. Inside a value buffer each primitive is one fixed-width or length-prefixed run (see the variant docs), and every backend spells the read/write routine for one the same way modulo casing (read_i32, readI32, ReadI32), so snake and pascal let a codec emitter dispatch on the whole set with one arm.

Variants

Bool

Boolean (bool): one byte, 0 or 1.

I8

Signed 8-bit integer (i8): one signed byte.

I16

Signed 16-bit integer (i16): two bytes, little-endian.

I32

Signed 32-bit integer (i32): four bytes, little-endian.

I64

Signed 64-bit integer (i64): eight bytes, little-endian.

U8

Unsigned 8-bit integer (u8): one unsigned byte.

U16

Unsigned 16-bit integer (u16): two bytes, little-endian.

U32

Unsigned 32-bit integer (u32): four bytes, little-endian.

U64

Unsigned 64-bit integer (u64): eight bytes, little-endian.

F32

32-bit IEEE 754 floating-point number (f32): four bytes.

F64

64-bit IEEE 754 floating-point number (f64): eight bytes.

String

UTF-8 string (string): a u32 byte length followed by UTF-8 bytes, no NUL terminator. Borrowed as a parameter, owned as a return.

Bytes

Byte buffer (bytes): a u32 length followed by raw bytes. Borrowed as a parameter, owned as a return.

Implementations

impl Prim

pub const ALL: [Prim; 13]

Every primitive, for exhaustive tables in runtime preambles.

pub fn from_name(name: &str) -> Option<Prim>

The primitive an IDL spelling names (i32, string, bytes), or None when name isn’t a primitive.

pub fn snake(self) -> &'static str

The lower-case IDL spelling (bool, i32, string, bytes), also the stem of snake-case routine names such as read_i32.

pub fn pascal(self) -> &'static str

The capitalized spelling (Bool, I32, String, Bytes), the stem of camel-case routine names such as readI32.

pub fn is_numeric(self) -> bool

true for the integer and float primitives (everything but bool, string, and bytes).

pub fn is_integer(self) -> bool

true for the integer primitives.

Trait Implementations

impl Clone for Prim

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Prim

impl Debug for Prim

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

Formats the value using the given formatter.

impl Display for Prim

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

Formats the value using the given formatter.

impl Eq for Prim

impl Hash for Prim

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Prim

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Prim

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Prim

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Prim