Mihaela Mihaljevic
2a84d6616f
Tagged.Scalar/Sequence/Mapping gain anchor and style fields (Tagged.ScalarStyle, Tagged.CollectionStyle), Tagged.Node gains an alias(anchor:node:) case carrying both the reference and its resolution, and parseTagged populates all of it from the parse events instead of discarding anchors and expanding aliases into copies. PureYAML.dump(_ node: Tagged.Node, options:) re-emits anchors, alias references, tags, and per-node styles over the document-wide policy. Plain scalars re-emit their source spelling (NO stays NO, an empty null stays empty); literal blocks cover keep chomping, single-line strip chomping, leading blank lines, and whitespace-led first lines via an explicit indentation indicator; folded scalars re-emit as > when the folding rules invert exactly and degrade to a literal block otherwise. The round-trip law parseTagged(dump(parseTagged(d))) == parseTagged(d) is corpus-tested over every real-world fixture, with one documented degradation: single-quoted content containing line breaks re-emits double-quoted, value unchanged. Closes #9
29 lines
1.0 KiB
Swift
29 lines
1.0 KiB
Swift
public extension PureYAML.Tagged.Node {
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/// Converts a tagged node into a model value while explicitly erasing tags.
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/// An alias converts to its resolved node's value, matching `parse(_:)`'s
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/// alias-expanding semantics.
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var modelValueErasingTags: PureYAML.Model.Value {
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switch self {
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case let .mapping(mapping):
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.mapping(.init(mapping.pairs.map { pair in
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.init(key: pair.key, value: pair.value.modelValueErasingTags)
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}))
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case let .scalar(scalar):
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scalar.value
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case let .sequence(sequence):
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.sequence(sequence.values.map(\.modelValueErasingTags))
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case let .alias(_, node):
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node.modelValueErasingTags
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}
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}
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}
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public extension PureYAML.Tagged.Constructor where Output == PureYAML.Model.Value {
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/// Explicit fallback constructor that preserves order and duplicates while erasing tags.
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static var modelValueErasingTags: Self {
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Self().fallingBackTo { node, _ in
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node.modelValueErasingTags
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}
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}
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}
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