Mihaela Mihaljevic
880137a955
A group inside xs:redefine may reference itself (the group being redefined) at most once, and that self-reference must have minOccurs = maxOccurs = 1. A self-reference with minOccurs="0", maxOccurs="unbounded", or a count above 1 is invalid. redefineGroupSelfReferenceErrors flags it, surfaced by the pre-compile Validation redefineGroupSelfReferencesAreUnit. The self-reference is matched by NAMESPACE (referenceNamespace == the redefining schema's targetNamespace), not local name alone, so a redefined group that references an imported group merely sharing its local name is correctly left unconstrained -- the false-positive boundary an adversarial review flagged before merge, mirroring the namespace guard the sibling redefine/cycle rules use. XSTS: invalid-schemas-accepted 79 to 77 (schR3, schR4), valid-schemas-rejected held at 0, no other bucket moved.
49 lines
2.7 KiB
Swift
49 lines
2.7 KiB
Swift
extension PureXML.Validation.SchemaCompile {
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/// src-resolve: a resolved `include`/`import`/`redefine` `schemaLocation` (one the
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/// loader returned content for) must be a well-formed schema document. The
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/// failures are recorded on the context during composition; an unresolved
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/// location (the loader returned nothing) is not recorded, since resolution is
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/// the processor's choice.
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static var referencedSchemasResolveToSchemas: PureXML.Validation.Validation<PureXML.Schema.SchemaCompileRoot, PureXML.Schema.SchemaCompileContext> {
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compileRule("A resolved schemaLocation reference is a valid schema") { document in
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PureXML.Schema.SchemaLocatedFinding.unlocated(
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document.context.failedSchemaReferences.map {
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"the referenced schema document '\($0)' is not a valid schema"
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},
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)
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}
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}
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/// src-redefine.5: every type inside `xs:redefine` must restrict or extend the
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/// type it redefines (same local name, in the redefining schema's own target
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/// namespace).
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static var redefinitionsDeriveFromThemselves: PureXML.Validation.Validation<PureXML.Schema.SchemaCompileRoot, PureXML.Schema.SchemaCompileContext> {
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compileRule("A redefined type restricts or extends itself") { document in
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PureXML.Schema.SchemaLocatedFinding.unlocated(
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PureXML.Schema.XSDParser.redefineDerivationErrors(document.containers),
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)
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}
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}
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/// src-redefine.6.1.2: a redefined group's self-reference has minOccurs = maxOccurs = 1.
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static var redefineGroupSelfReferencesAreUnit: PureXML.Validation.Validation<PureXML.Schema.SchemaCompileRoot, PureXML.Schema.SchemaCompileContext> {
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compileRule("A redefined group's self-reference occurs exactly once") { document in
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PureXML.Schema.SchemaLocatedFinding.unlocated(
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PureXML.Schema.XSDParser.redefineGroupSelfReferenceErrors(document.containers),
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)
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}
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}
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/// Facet definition validity and pattern syntax validity (XSD Part 2 4.3): a
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/// constraining facet must be applicable to and valid for its base type, and a
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/// `pattern` must compile. These are gathered during simple-type compilation
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/// (where the resolved base type is available) into the context's finding sink,
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/// then surfaced here as a named, located validation rather than reported
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/// straight to the diagnostics collector during parsing.
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static var simpleTypeFacetsAreValid: PureXML.Validation.Validation<PureXML.Schema.SchemaCompileRoot, PureXML.Schema.SchemaCompileContext> {
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compileRule("Simple-type facets are valid for their base type") { document in
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document.context.facetFindingSink.findings
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}
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}
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}
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