Function validate_path_pattern

graphlite/src/ast/validator.rs:2457–2480

Validate path pattern

(
    pattern: &PathPattern,
    ctx: &mut ValidationContext,
    errors: &mut Vec<ValidationError>,
)

/// Validate path pattern
fn validate_path_pattern(
    pattern: &PathPattern,
    ctx: &mut ValidationContext,
    errors: &mut Vec<ValidationError>,
) {
    if pattern.elements.is_empty() {
        errors.push(ValidationError {
            message: "Path pattern must have at least one element".to_string(),
            location: Some(pattern.location.clone()),
            error_type: ValidationErrorType::Structural,
        });
    }

    for element in &pattern.elements {
        match element {
            PatternElement::Node(node) => {
                validate_node(node, ctx, errors);
            }
            PatternElement::Edge(edge) => {
                validate_edge(edge, ctx, errors);
            }
        }
    }
}

/// Validate node
fn validate_node(node: &Node, ctx: &mut ValidationContext, errors: &mut Vec<ValidationError>) {