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Index sequence assembly and history lookups

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This commit is contained in:
Eric Rakestraw
2026-10-17 04:52:20 +00:00
parent 527a38daf1
commit 023e428b9c
7 changed files with 124 additions and 52 deletions
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10
internal/engine/directives.go
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@@ -167,6 +167,10 @@ func fragmentVersionClaim(root *document.Node, rule *VersionRule) *document.Node
}
func fragmentVersionClaimProjected(root *document.Node, rule *VersionRule, sourceIndex int, ranges []sequenceRange) *document.Node {
return fragmentVersionClaimWithIndex(root, rule, sourceIndex, indexSequenceRanges(ranges))
}
func fragmentVersionClaimWithIndex(root *document.Node, rule *VersionRule, sourceIndex int, ranges sequenceRangeIndex) *document.Node {
if rule == nil {
return nil
}
@@ -192,15 +196,11 @@ func fragmentVersionClaimProjected(root *document.Node, rule *VersionRule, sourc
if !valid {
return current
}
for _, assigned := range ranges {
if assigned.sourceIndex != sourceIndex || assigned.path.String() != currentPath.String() {
continue
}
if assigned, found := ranges[sequenceRangeKey{sourceIndex: sourceIndex, path: currentPath.String()}]; found {
if index < assigned.start || index >= assigned.end {
return nil
}
index -= assigned.start
break
}
if index < 0 || index >= len(current.Sequence) {
return nil