Struct AttrPath 

pub struct AttrPath(/* private fields */);

Implementations

impl AttrPath

pub fn new(first: Segment) -> Self

pub fn parse(s: &str) -> Result<Self, AttrPathParseError>

Parse a dotted path, respecting "..." quoting on individual segments.

Examples:

• nixpkgs → 1 segment.
• crane.nixpkgs → 2 segments.
• "hls-1.10".nixpkgs → 2 segments, the first stored unquoted.
• a."b.c".d → 3 segments.

pub fn first(&self) -> &Segment

pub fn last(&self) -> &Segment

pub fn len(&self) -> usize

pub fn segments(&self) -> &[Segment]

pub fn parent(&self) -> Option<AttrPath>

All segments except the last, or None for a length-1 path.

pub fn child(&self) -> Option<&Segment>

The second segment, or None for length-1 paths.

pub fn push(&mut self, seg: Segment)

pub fn to_flake_follows_string(&self) -> String

Render for the RHS of follows = "...". Display emits the LHS attribute-path form and injects per-segment quoting that is invalid in this string-value position.

Trait Implementations

impl Clone for AttrPath

fn clone(&self) -> AttrPath

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttrPath

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AttrPath

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for AttrPath

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

Formats the value using the given formatter.

impl Eq for AttrPath

impl From<AttrPath> for ChangeId

fn from(value: AttrPath) -> Self

Converts to this type from the input type.

impl From<Segment> for AttrPath

fn from(value: Segment) -> Self

Converts to this type from the input type.

impl FromStr for AttrPath

type Err = AttrPathParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for AttrPath

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 AttrPath

fn cmp(&self, other: &AttrPath) -> 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.

impl PartialEq for AttrPath

fn eq(&self, other: &AttrPath) -> 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 PartialOrd for AttrPath

fn partial_cmp(&self, other: &AttrPath) -> 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 Serialize for AttrPath

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AttrPath