XPathResolver

struct XPathResolver

Overview

XPath resolution handles XMI fragment identifiers like:

• #//@members.0 - Navigate to first member from root

• #//Person.0/@children.2 - Navigate through multiple containment levels

• #/0/@children.1 - Index-based navigation

XPath Fragment Format

XMI uses a simplified XPath syntax for same-resource references:

• # - Same resource reference indicator

• // - Navigate from root object

• @feature - Navigate through containment feature named “feature”

• .index - Array index for multi-valued features

• / - Path separator for nested navigation

Example

let resolver = XPathResolver(resource: resource)
if let memberId = await resolver.resolve("#//@members.0") {
    let member = await resource.resolve(memberId)
}