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Project sequence evidence through item mappings

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This commit is contained in:
Eric Rakestraw
2026-10-23 18:07:15 +00:00
parent 7b04dc6a50
commit f6b02dec03
10 changed files with 374 additions and 66 deletions
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34
internal/engine/history.go
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@@ -273,8 +273,7 @@ func sequenceHistoryAt(contributions map[string]sequenceHistoryContributionIndex
type sequenceHistoryContributionIndex struct {
sequenceHistoryContribution
outputIndexes []int
inputIndexes []int
projection sequenceItemProjectionIndex
replacedOutputs map[int]struct{}
}
@@ -286,26 +285,7 @@ func indexSequenceHistoryContributions(values []sequenceHistoryContribution) map
for _, value := range values {
contribution := sequenceHistoryContributionIndex{sequenceHistoryContribution: value}
if value.mode == sequenceHistoryMapped {
maxOutput := -1
for _, projection := range value.items {
if projection.outputIndex > maxOutput {
maxOutput = projection.outputIndex
}
}
contribution.outputIndexes = make([]int, len(value.items))
for inputIndex := range contribution.outputIndexes {
contribution.outputIndexes[inputIndex] = -1
}
contribution.inputIndexes = make([]int, maxOutput+1)
for outputIndex := range contribution.inputIndexes {
contribution.inputIndexes[outputIndex] = -1
}
for _, projection := range value.items {
if projection.inputIndex >= 0 && projection.inputIndex < len(contribution.outputIndexes) && projection.outputIndex >= 0 && projection.outputIndex < len(contribution.inputIndexes) {
contribution.outputIndexes[projection.inputIndex] = projection.outputIndex
contribution.inputIndexes[projection.outputIndex] = projection.inputIndex
}
}
contribution.projection = newSequenceItemProjectionIndex(value.items)
contribution.replacedOutputs = make(map[int]struct{}, len(value.replacements))
for _, replacement := range value.replacements {
contribution.replacedOutputs[replacement.outputIndex] = struct{}{}
@@ -317,17 +297,19 @@ func indexSequenceHistoryContributions(values []sequenceHistoryContribution) map
}
func (contribution sequenceHistoryContributionIndex) outputForInput(inputIndex int) int {
if inputIndex < 0 || inputIndex >= len(contribution.outputIndexes) {
outputIndex, ok := contribution.projection.outputForInput(inputIndex)
if !ok {
return -1
}
return contribution.outputIndexes[inputIndex]
return outputIndex
}
func (contribution sequenceHistoryContributionIndex) inputForOutput(outputIndex int) int {
if outputIndex < 0 || outputIndex >= len(contribution.inputIndexes) {
inputIndex, ok := contribution.projection.inputForOutput(outputIndex)
if !ok {
return -1
}
return contribution.inputIndexes[outputIndex]
return inputIndex
}
func applySequenceHistory(target **document.Node, incoming *document.Node, contribution sequenceHistoryContributionIndex) {