Group @testable imports at the bottom, per public/rules-swift's swiftformat. A
behavior-preserving import-ordering reformat across 252 files (mostly tests).
--trailingclosures was deliberately not adopted (cosmetic, and swiftformat flags
it as caution-worthy).
Enforce the two occurrence-range constraints on model groups that PureXML
was not checking:
- p-props-correct.1: a particle's minOccurs may not exceed its maxOccurs,
both defaulting to 1 when the attribute is absent. occurrenceOrderErrors
previously fired only when BOTH attributes were present, so it missed
minOccurs="2" with a defaulted maxOccurs (2 > 1) and maxOccurs="0" with a
defaulted minOccurs (1 > 0). It now orders against the effective defaults.
- cos-all-limited.2: an all group's maxOccurs must be 1 and its minOccurs
0 or 1, and every particle it contains is limited to maxOccurs 0 or 1.
Both are zero-false-positive rules (no valid schema violates them). XSTS:
invalid-schemas-accepted 130 to 110 (20 caught), valid-schemas-rejected
held at 0, no other bucket moved. The differential harness corroborates:
agree-invalid 1751 to 1767, PureXML-stricter unchanged at 87 (no new
over-rejection across 9618 schemas).
An xs:all group may only be the whole content model of a complex type. A direct
all nested in a sequence/choice was already rejected; this closes the case where
an all is reached through a <group ref> to a named group whose content is an all
and that reference appears inside a compositor.
The all-group pool is qualified by the defining schema's target namespace, and a
reference by its prefix binding, so an imported or redefined same-named group is
not confused with a local one (two over-rejections found by an adversarial
critic: a redefined all-group whose content is overridden, and an imported
all-group shadowing a local non-all group; both fixed and tested). A group
redefined to non-all content is exempt.
XSTS: invalid schemas accepted 481 to 480, no other bucket raised. Disclosed
under-rejections: a redefine that keeps the group an all, and cross-namespace
misplacement of an imported all-group.
