Struct StackLabel 

pub struct StackLabel { /* private fields */ }

Human-readable application, framework, runtime, or service label.

A label pairs display text with a StackKind. Built-in labels borrow static strings, so producing them never allocates. Use as_str, AsRef<str>, or Display to read the text, and kind for the category.

Equality and hashing consider both text and kind. Comparisons with str and &str consider only the text, which keeps assertions short.

Examples

use what_stack::{StackKind, StackLabel, detect_from_process};

let label: StackLabel = detect_from_process("postgres").expect("known process");
assert_eq!(label, "PostgreSQL");
assert_eq!(label.as_str(), "PostgreSQL");
assert_eq!(label.kind(), StackKind::Database);
assert_eq!(label.to_string(), "PostgreSQL");

Implementations

impl StackLabel

pub fn new(text: impl Into<Cow<'static, str>>, kind: StackKind) -> Self

Create a label from owned or static text.

Prefer from_static for string literals; it is a const fn and never allocates.

pub const fn from_static(text: &'static str, kind: StackKind) -> Self

Create a label from static text without allocating.

pub fn as_str(&self) -> &str

Return the label text.

pub const fn kind(&self) -> StackKind

Return the label category.

pub fn into_cow(self) -> Cow<'static, str>

Convert the label into its text, dropping the kind.

Static labels stay borrowed, so this does not allocate for built-in detections.

Trait Implementations

impl AsRef<str> for StackLabel

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for StackLabel

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StackLabel

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

Formats the value using the given formatter.

impl Display for StackLabel

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

Formats the value using the given formatter.

impl Eq for StackLabel

impl From<StackLabel> for Cow<'static, str>

fn from(label: StackLabel) -> Self

Converts to this type from the input type.

impl From<StackLabel> for String

fn from(label: StackLabel) -> Self

Converts to this type from the input type.

impl Hash for StackLabel

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 PartialEq for StackLabel

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<&str> for StackLabel

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<StackLabel> for str

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<StackLabel> for &str

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

Equality operator ==.

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

Inequality operator !=.

impl PartialEq<str> for StackLabel

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StackLabel