Struct LocatedExprTree 

pub struct LocatedExprTree {
    pub expr: Expr,
    pub origin: Option<Origin>,
    pub children: Vec<LocatedExprTree>,
}

A located expression together with its located children.

Carries per-node Origin for a whole expression tree, so codecs can preserve source spans down to each sub-form.

Fields

expr: Expr

The expression at this node.

origin: Option<Origin>

The optional source origin of this node.

children: Vec<LocatedExprTree>

The located child nodes.

Implementations

impl LocatedExprTree

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

Compares two trees canonically, ignoring origin, including children.

pub fn located(&self) -> LocatedExpr

Projects this node to a flat LocatedExpr, dropping children.

pub fn without_children(expr: Expr, origin: Option<Origin>) -> Self

Builds a leaf tree node with no children.

pub fn from_located(located: LocatedExpr) -> Self

Lifts a flat LocatedExpr into a leaf tree node.

pub fn from_expr_recursive(expr: Expr) -> Self

Builds a tree from expr by recursively wrapping its children, with no origins.

Trait Implementations

impl Clone for LocatedExprTree

fn clone(&self) -> LocatedExprTree

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LocatedExprTree

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

Formats the value using the given formatter.

impl Eq for LocatedExprTree

impl Hash for LocatedExprTree

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 LocatedExprTree

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