Struct ParseNodeXArrow 

pub struct ParseNodeXArrow {
    pub mode: Mode,
    pub loc: Option<SourceLocation>,
    pub label: String,
    pub body: Option<Box<AnyParseNode>>,
    pub below: Option<Box<AnyParseNode>>,
}

Represents extensible arrows in mathematical expressions.

This struct handles arrows that can stretch to fit their content, with optional labels above or below.

Fields

• mode - The parsing mode (Mode::Math or Mode::Text)
• loc - Optional source location for error reporting
• label - The arrow type/label (e.g., “->”, “<=>”)
• body - The content above the arrow
• below - Optional content below the arrow

LaTeX Correspondence

Corresponds to LaTeX extensible arrow commands:

\xleftarrow{f}
\xrightarrow[g]{f}
\xleftrightarrow{h}

Usage

XArrow nodes create arrows that automatically size to fit their labels, commonly used for function mappings and transformations.

Fields

mode: Mode

The parsing mode (Mode::Math or Mode::Text)

loc: Option<SourceLocation>

Optional source location for error reporting

label: String

The arrow type/label (e.g., “->”, “<=>”)

body: Option<Box<AnyParseNode>>

The content above the arrow

below: Option<Box<AnyParseNode>>

Optional content below the arrow

Trait Implementations

impl Clone for ParseNodeXArrow

fn clone(&self) -> ParseNodeXArrow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseNodeXArrow

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

Formats the value using the given formatter.

impl PartialEq for ParseNodeXArrow

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