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FoldOutcome

type FoldOutcome = 
  | {
  entry: WorkingTreeEntryRow;
  entryCountDelta: 1;
  kind: "insert";
}
  | {
  entry: WorkingTreeEntryRow;
  entryCountDelta: 0;
  kind: "update";
}
  | {
  entryCountDelta: -1;
  kind: "remove";
};

Defined in: packages/rxdb-plugin-working-tree/src/working-tree/write-entry.ts:111

折叠的结论；三种 kind 与 entryCountDelta 一一对应，调用方不必自己数行。

Union Members​

Type Literal​

{
  entry: WorkingTreeEntryRow;
  entryCountDelta: 1;
  kind: "insert";
}

entry​

readonly entry: WorkingTreeEntryRow;

新建的行

entryCountDelta​

readonly entryCountDelta: 1;

恒为 1

kind​

readonly kind: "insert";

这个实体此前没有未提交单元

Type Literal​

{
  entry: WorkingTreeEntryRow;
  entryCountDelta: 0;
  kind: "update";
}

entry​

readonly entry: WorkingTreeEntryRow;

折叠后的行

entryCountDelta​

readonly entryCountDelta: 0;

恒为 0

kind​

readonly kind: "update";

折进了已有单元

Type Literal​

{
  entryCountDelta: -1;
  kind: "remove";
}

entryCountDelta​

readonly entryCountDelta: -1;

恒为 -1；不是饱和减，否则「减到零再写入」之后计数会比行数多一

kind​

readonly kind: "remove";

净无变化：删掉这一行