Enum AssertMessageAnnotations 

pub enum AssertMessageAnnotations {
    Off,
    MaxBytes(NonZeroU32),
}

Controls the pytest-style introspected assert failure messages of CompileOptions::assert_message_annotations.

The choice is baked in at compile time (whether the introspecting opcodes are emitted) but the truncation limit is applied at runtime, so it also travels with serialized sessions.

Variants

Off

Disable introspection; bare asserts use CPython’s empty message.

MaxBytes(NonZeroU32)

Retain at most this many UTF-8 bytes per operand before any … suffix. Non-zero because 0 encodes Off on the wire.

Implementations

impl AssertMessageAnnotations

pub const DEFAULT_MAX_BYTES: NonZeroU32

Operand-repr truncation used by Default and From<bool>.

pub fn enabled(self) -> bool

Whether the compiler should emit introspecting assert opcodes.

pub fn max_bytes(self) -> u32

Returns the wire value: 0 when disabled, otherwise the UTF-8 byte cap.

pub fn from_max_bytes(value: u32) -> Self

Decodes the wire value: 0 is off and any other value is the byte cap.

Trait Implementations

impl Clone for AssertMessageAnnotations

fn clone(&self) -> AssertMessageAnnotations

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AssertMessageAnnotations

impl Debug for AssertMessageAnnotations

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

Formats the value using the given formatter.

impl Default for AssertMessageAnnotations

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for AssertMessageAnnotations

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for AssertMessageAnnotations

impl From<bool> for AssertMessageAnnotations

fn from(enabled: bool) -> Self

true enables the 120-byte default; false disables annotations.

impl PartialEq for AssertMessageAnnotations

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for AssertMessageAnnotations

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AssertMessageAnnotations