Enum AstNode 

pub enum AstNode {
    Expr(ExprNode),
    Value(ValueNode),
    ContextItem(ContextItemNode),
    VarRef(VarRefNode),
    If(IfNode),
    For(ForNode),
    Quantified(QuantifiedNode),
    FunctionCall(FunctionCallNode),
    PathExpr(PathExprNode),
    FilterExpr(FilterExprNode),
    Range(RangeNode),
    UnaryOp(UnaryOpNode),
    BinaryOp(BinaryOpNode),
    PathStep(PathStepNode),
    TypeExpr(TypeExprNode),
}

The main AST node type, encompassing all possible expression types.

Variants

Expr(ExprNode)

Comma-separated sequence of expressions.

Value(ValueNode)

Literal value (string, number, boolean, empty).

ContextItem(ContextItemNode)

Context item reference (.).

VarRef(VarRefNode)

Variable reference ($name).

If(IfNode)

Conditional expression (if ... then ... else).

For(ForNode)

For expression (for $x in ... return).

Quantified(QuantifiedNode)

Quantified expression (some/every ... satisfies).

FunctionCall(FunctionCallNode)

Function call (name(...)).

PathExpr(PathExprNode)

Path expression (absolute or relative).

FilterExpr(FilterExprNode)

Filter expression (expr[predicate]).

Range(RangeNode)

Range expression (expr to expr).

UnaryOp(UnaryOpNode)

Unary operator (+ or -).

BinaryOp(BinaryOpNode)

Binary operator (arithmetic, comparison, logical, etc.).

PathStep(PathStepNode)

Single path step (axis + node test + predicates).

TypeExpr(TypeExprNode)

Type expression (instance of, treat as, cast as, castable as).

Trait Implementations

impl Clone for AstNode

fn clone(&self) -> AstNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AstNode

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

Formats the value using the given formatter.