Function validate_unary_operation

graphlite/src/ast/validator.rs:1929–1954

Validate unary operations

(
    operator: &Operator,
    expression: &Expression,
    ctx: &mut ValidationContext,
    errors: &mut Vec<ValidationError>,
)

/// Validate unary operations
fn validate_unary_operation(
    operator: &Operator,
    expression: &Expression,
    ctx: &mut ValidationContext,
    errors: &mut Vec<ValidationError>,
) {
    // Validate that the operand is a valid expression
    validate_expression(expression, ctx, errors);

    // Type compatibility checks for unary operators
    match operator {
        Operator::Not => {
            // NOT requires boolean operand
        }
        Operator::Minus => {
            // Unary minus requires numeric operand
        }
        _ => {
            errors.push(ValidationError {
                message: format!("Invalid unary operator '{:?}'", operator),
                location: None,
                error_type: ValidationErrorType::Type,
            });
        }
    }
}

/// Validate binary operations
fn validate_binary_operation(