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-rw-r--r--src/UndoHistory.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/UndoHistory.h b/src/UndoHistory.h
index 1186a1e0e..13aaca98c 100644
--- a/src/UndoHistory.h
+++ b/src/UndoHistory.h
@@ -53,6 +53,7 @@ struct UndoActions {
[[nodiscard]] intptr_t SSize() const noexcept;
void Create(size_t index, ActionType at_, Sci::Position position_, Sci::Position lenData_, bool mayCoalesce_);
[[nodiscard]] bool AtStart(size_t index) const noexcept;
+ [[nodiscard]] size_t LengthTo(size_t index) const noexcept;
};
class ScrapStack {
@@ -112,7 +113,9 @@ public:
bool AfterDetachPoint() const noexcept;
bool AfterOrAtDetachPoint() const noexcept;
- void SetCurrent(int action) noexcept;
+ [[nodiscard]] intptr_t Delta(int action) noexcept;
+ [[nodiscard]] bool Validate(intptr_t lengthDocument) noexcept;
+ void SetCurrent(int action, intptr_t lengthDocument);
[[nodiscard]] int Current() const noexcept;
[[nodiscard]] int Type(int action) const noexcept;
[[nodiscard]] Sci::Position Position(int action) const noexcept;