Enum Value 

pub enum Value {
    Invalid,
    SInt(i64),
    UInt(u64),
    Float(f64),
    String(String),
    Bytes(Vec<u8>),
    Bool(bool),
    Enum(Cow<'static, str>),
    DateTime(DateTime<Utc>),
    Array(Vec<Value>),
}

A fully-transformed field value.

Variants

Invalid

Invalid or unsupported field value.

SInt(i64)

Untransformed signed integer (no scale/offset applied).

UInt(u64)

Untransformed unsigned integer.

Float(f64)

Either a Float32/Float64 base value, or any numeric value that has had non-identity scale/offset applied.

String(String)

UTF-8 string.

Bytes(Vec<u8>)

Opaque byte array.

Bool(bool)

Boolean value.

Enum(Cow<'static, str>)

Resolved enum value (e.g. "running" for Sport::Running).

Backed by Cow<'static, str> so that the common case — names returned from the static Profile dispatcher — is a zero-allocation borrow, while developer-defined enum values can still own a runtime String. Construct with Value::Enum("running".into()) (works for both &'static str and String); read via Deref<Target=str> (s.is_empty(), &s[..], &*s, etc.).

DateTime(DateTime<Utc>)

FIT timestamp converted to wall-clock UTC. With the chrono feature disabled this carries the raw FIT epoch seconds (u32) instead.

Array(Vec<Value>)

Multi-element field. Each entry is a Value of homogeneous type.

Implementations

impl Value

pub fn is_invalid(&self) -> bool

Returns true if this is Value::Invalid.

pub fn as_f64(&self) -> Option<f64>

Extract an f64 from Float, UInt, or SInt variants.

pub fn as_i64(&self) -> Option<i64>

Extract an i64 from SInt or non-negative UInt variants.

pub fn as_u64(&self) -> Option<u64>

Extract a u64 from UInt or non-negative SInt variants.

pub fn as_str(&self) -> Option<&str>

Extract a string slice from String or Enum variants.

pub fn as_datetime(&self) -> Option<DateTime<Utc>>

Extract a DateTime<Utc> from the DateTime variant.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl PartialEq for Value

fn eq(&self, other: &Value) -> 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 Value