Struct HeapDiff 

#[non_exhaustive]
pub struct HeapDiff {
    pub from: u32,
    pub to: u32,
    pub live_bytes: i64,
    pub tags: Vec<TagDelta>,
}

What grew and shrank in the heap between two snapshots (HeapSnapshot::diff). Build an empty one with HeapDiff::new (ADR-0039).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

from: u32

The earlier snapshot’s frame.

to: u32

The later snapshot’s frame.

live_bytes: i64

How many more bytes are live: less than 0 for fewer.

tags: Vec<TagDelta>

The tags whose live bytes or blocks changed: the largest change in bytes first (more or fewer), then by class, then by name.

Implementations

impl HeapDiff

pub fn new(from: u32, to: u32) -> Self

Nothing changed from frame from to frame to.

Trait Implementations

impl Clone for HeapDiff

fn clone(&self) -> HeapDiff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeapDiff

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

Formats the value using the given formatter.

impl Default for HeapDiff

fn default() -> HeapDiff

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HeapDiff

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HeapDiff

impl JsonSchema for HeapDiff

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for HeapDiff

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for HeapDiff

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 HeapDiff