Mihaela Mihaljevic
bf069fad39
PureYAMLJSON is a separate library product layered on the core engine. JSON is a subset of YAML 1.2, so the existing parser already reads both into one value tree; this product adds the missing half and the value-level policy: - JSON.Writer: a pure-Swift RFC-8259 serializer (no Foundation; WASI-clean), pretty or compact, rejecting non-string keys and non-finite numbers. - JSON representability rules expressed in PureYAML's own Validation framework: mappingKeysAreStrings and numbersAreFinite join the core mappingKeysAreUnique. - JSON.Validator: the representability rule set plus issues(for:)/isRepresentable. - JSON.Convert: standalone convert(_:to:) with the round-trip law (parse -> validate representability -> emit -> re-parse must equal the source). To JSON rejects complex keys and non-finite numbers; to YAML rejects duplicate keys, which are legal in JSON but not in YAML. 19 tests cover the writer, the rules, and both conversion directions including the dual-rejection edges. Carved out of the catch-all Sources/Tests paths via exclude so the core PureYAML target is unchanged.
12 lines
378 B
Swift
12 lines
378 B
Swift
import PureYAML
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public extension PureYAML.JSON.Writer {
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/// A reason a value tree cannot be written as strict JSON.
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enum Failure: Error, Sendable, Equatable {
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/// A YAML complex (sequence/mapping) key has no JSON object-name form.
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case nonStringKey(String)
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/// JSON cannot represent NaN or infinity.
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case nonFiniteNumber(Double)
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}
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}
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