// SPDX-FileCopyrightText: 2025 The Project Pterodactyl Developers
//
// SPDX-License-Identifier: MPL-2.0

import Foundation

/// An abstract syntax view around a ``SyntaxCursor``. This is to be populated by extensions targetting specific `G`.
struct SyntaxView<G: Grammar> {
	let cursor: SyntaxCursor
	init?(_ cursor: SyntaxCursor) {
		guard let kind = cursor.node.tree?.kind, G.kinds.contains(kind) else { return nil }
		self.cursor = cursor
	}
	
	func matchingSubview<X: Grammar>() -> SyntaxView<X>? {
		return cursor.firstChild(mapping: SyntaxView<X>.init)
	}
	
	func matchingSubviews<X: Grammar>() -> [SyntaxView<X>] {
		return cursor.children(mapping: SyntaxView<X>.init)
	}
}