diff options
Diffstat (limited to 'src/buffer.cc')
| -rw-r--r-- | src/buffer.cc | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/src/buffer.cc b/src/buffer.cc index b0e70748..22f4a794 100644 --- a/src/buffer.cc +++ b/src/buffer.cc @@ -158,6 +158,12 @@ bool Buffer::set_name(String name) return false; } +void Buffer::throw_if_read_only() const +{ + if (m_flags & Flags::ReadOnly) + throw runtime_error("Buffer is read-only"); +} + void Buffer::update_display_name() { if (m_flags & Flags::File) @@ -315,8 +321,10 @@ void Buffer::commit_undo_group() m_history_cursor = node; } -bool Buffer::undo(size_t count) noexcept +bool Buffer::undo(size_t count) { + throw_if_read_only(); + commit_undo_group(); if (not m_history_cursor->parent) @@ -333,8 +341,10 @@ bool Buffer::undo(size_t count) noexcept return true; } -bool Buffer::redo(size_t count) noexcept +bool Buffer::redo(size_t count) { + throw_if_read_only(); + if (not m_history_cursor->redo_child) return false; @@ -350,8 +360,10 @@ bool Buffer::redo(size_t count) noexcept return true; } -void Buffer::move_to(HistoryNode* history_node) noexcept +void Buffer::move_to(HistoryNode* history_node) { + throw_if_read_only(); + commit_undo_group(); auto find_lowest_common_parent = [](HistoryNode* a, HistoryNode* b) { @@ -419,7 +431,7 @@ Buffer::HistoryNode* Buffer::find_history_node(HistoryNode* node, const Func& fu return nullptr; } -bool Buffer::move_to(size_t history_id) noexcept +bool Buffer::move_to(size_t history_id) { auto* target_node = find_history_node(&m_history, [history_id](auto* node) { return node->id == history_id; }); @@ -548,6 +560,8 @@ void Buffer::apply_modification(const Modification& modification) BufferCoord Buffer::insert(BufferCoord pos, StringView content) { + throw_if_read_only(); + kak_assert(is_valid(pos)); if (content.empty()) return pos; @@ -568,6 +582,8 @@ BufferCoord Buffer::insert(BufferCoord pos, StringView content) BufferCoord Buffer::erase(BufferCoord begin, BufferCoord end) { + throw_if_read_only(); + kak_assert(is_valid(begin) and is_valid(end)); // do not erase last \n except if we erase from the start of a line, and normalize // end coord @@ -585,6 +601,8 @@ BufferCoord Buffer::erase(BufferCoord begin, BufferCoord end) BufferCoord Buffer::replace(BufferCoord begin, BufferCoord end, StringView content) { + throw_if_read_only(); + if (is_end(end) and not content.empty() and content.back() == '\n') { end = back_coord(); |