Mihaela Mihaljevic
9e345ea0fe
EventReader.next(), both initializers, and the Event alias are public (an internal typealias in a split file had been shadowing the public Parsing.Event); a new PureXMLPublicAPITests target compiles without testable import so facade gaps fail CI. The large-corpus benchmarks exposed document-order sorting as quadratic on flat fan-outs; the fix's first attempt was itself worse (an eager sibling table built per predicate evaluation), caught by sampling the live run, and replaced with a lazy table: single-node sets never touch order keys and a parent's table builds on its second lookup. XPath at 42 MB drops 27.1 s to 1.57 s (190x to 11.7x); at 210 MB PureXML completes in 9.4 s the query libxml2 refuses at its 10M node-set cap (#143 tracks our configurable budget). Benchmark harness: size series to 210 MB, CORPUS mode for real files (NASA, SwissProt measured), SAX stage, refusal-aware table, NULL-safe C driver. All conformance suites, Linux, and WASM verified. Closes #142.
29 lines
1.2 KiB
Swift
29 lines
1.2 KiB
Swift
/// The end-tag scanner, split from the reader body to keep it under the
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/// length caps. Behavior is part of EventReader proper.
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extension PureXML.Parsing.EventReader {
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/// Public: this alias shadows the public Parsing.Event for the whole
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/// type, so it must not narrow the public next() signature (#142).
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public typealias Event = PureXML.Parsing.Event
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typealias ParseError = PureXML.Parsing.ParseError
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mutating func scanEndTag() throws -> Event {
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let mark = reader.mark
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reader.consume("</")
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let name = try scanName()
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reader.skipSpace()
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guard reader.consume(">") else {
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throw ParseError.unterminatedTag(reader.mark)
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}
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guard let top = open.last else {
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throw ParseError.unexpectedEndTag(name: name.description, mark)
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}
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// Tag matching is lexical (the qualified-name text must match); the
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// open name additionally carries its resolved namespace URI.
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guard top.description == name.description else {
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throw ParseError.mismatchedEndTag(expected: top.description, found: name.description, mark)
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}
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open.removeLast()
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namespaces.leaveElement()
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return .endElement(name: top)
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}
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}
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