Mihaela Mihaljevic
ac85dd36de
PureXML.XPath.Budget is the configurable counterpart of libxml2's fixed 10M node-set cap (libxml2Compatible preset included), thrown as a located QueryError instead of a silent refusal, default unbounded. xsl:sort honors lang with tailored alphabet orders for Polish and Russian derived from the conformance golds, case-folded. The WASM gate executes all 985 tests under wasmtime on an actual WASI runtime, wired into CI; the first run caught a real wasm32 trap (Int is 32 bits there, so format-number's digit extraction trapped at 2^31 despite the 2^53 guard; internals are now Int64 and the xsl:number bound is platform-correct). Xalan baseline 127 -> 125. Closes #143, closes #144.
37 lines
1.7 KiB
Swift
37 lines
1.7 KiB
Swift
public extension PureXML.XPath {
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/// An error compiling or evaluating an XPath query.
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enum QueryError: Swift.Error, Equatable, Sendable, CustomStringConvertible {
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case empty
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/// The evaluation budget was exceeded (``PureXML/XPath/Budget``):
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/// a node-set grew past the configured maximum.
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case budgetExceeded(Int)
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case unexpectedToken(String)
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case expectedNodeTest
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case unterminatedPredicate
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case unsupportedPredicate(String)
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/// An axis name was not one of the thirteen XPath axes.
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case unsupportedAxis(String)
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/// A function was called that is not in the library.
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case unknownFunction(String)
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/// A `$name` reference had no binding in the evaluation context.
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case undefinedVariable(String)
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/// A function received the wrong number or type of arguments.
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case invalidArguments(String)
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public var description: String {
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switch self {
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case .empty: "the XPath expression is empty"
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case let .budgetExceeded(cap): "the evaluation budget was exceeded (node-set cap \(cap))"
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case let .unexpectedToken(token): "unexpected token '\(token)'"
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case .expectedNodeTest: "expected a node test"
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case .unterminatedPredicate: "unterminated predicate"
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case let .unsupportedPredicate(detail): "unsupported predicate: \(detail)"
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case let .unsupportedAxis(axis): "unsupported axis: \(axis)"
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case let .unknownFunction(name): "unknown function '\(name)()'"
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case let .undefinedVariable(name): "variable '$\(name)' is not bound"
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case let .invalidArguments(detail): "invalid arguments: \(detail)"
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}
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}
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}
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}
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