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46 lines
1.2 KiB
Swift
46 lines
1.2 KiB
Swift
// Copyright © 2015 GitHub. All rights reserved.
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typealias TSDocument = COpaquePointer
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typealias TSLanguage = COpaquePointer
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extension TSNode {
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func category(document: TSDocument) throws -> String {
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guard let category = String.fromCString(ts_node_name(self, document)) else { throw "couldn’t make a String from the node name" }
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return category
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}
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var range: Range<Int> {
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let start = ts_node_pos(self).chars
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return start..<(start + ts_node_size(self).chars)
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}
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func substring(string: String) throws -> String {
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guard let result = String(string.utf16[range]) else { throw "could not make a string from utf16 range '\(range)'" }
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return result
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}
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var children: ChildrenCollection {
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return ChildrenCollection(node: self, count: ts_node_child_count(self), child: ts_node_child)
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}
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var namedChildren: ChildrenCollection {
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return ChildrenCollection(node: self, count: ts_node_named_child_count(self), child: ts_node_named_child)
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}
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struct ChildrenCollection: CollectionType {
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let node: TSNode
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let count: Int
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let child: (TSNode, Int) -> TSNode
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subscript (index: Int) -> TSNode {
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return child(node, index)
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}
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let startIndex = 0
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var endIndex: Int {
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return count
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}
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}
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}
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