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api/buffer: add "on_bytes" callback to nvim_buf_attach

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This implements byte-resolution updates of buffer changes.
Note: there is no promise that the buffer state is valid inside
the callback!
This commit is contained in:
Björn Linse
2020-02-29 15:27:17 +01:00
parent 81fa107f59
commit bc86f76c0a
13 changed files with 280 additions and 125 deletions
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22
src/nvim/buffer_updates.c
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@@ -2,6 +2,7 @@
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
#include "nvim/buffer_updates.h"
#include "nvim/extmark.h"
#include "nvim/memline.h"
#include "nvim/api/private/helpers.h"
#include "nvim/msgpack_rpc/channel.h"
@@ -282,9 +283,9 @@ void buf_updates_send_changes(buf_T *buf,
}
void buf_updates_send_splice(buf_T *buf,
linenr_T start_line, colnr_T start_col,
linenr_T oldextent_line, colnr_T oldextent_col,
linenr_T newextent_line, colnr_T newextent_col)
int start_row, colnr_T start_col, bcount_t start_byte,
int old_row, colnr_T old_col, bcount_t old_byte,
int new_row, colnr_T new_col, bcount_t new_byte)
{
if (!buf_updates_active(buf)) {
return;
@@ -296,7 +297,7 @@ void buf_updates_send_splice(buf_T *buf,
BufUpdateCallbacks cb = kv_A(buf->update_callbacks, i);
bool keep = true;
if (cb.on_bytes != LUA_NOREF) {
FIXED_TEMP_ARRAY(args, 8);
FIXED_TEMP_ARRAY(args, 11);
// the first argument is always the buffer handle
args.items[0] = BUFFER_OBJ(buf->handle);
@@ -304,12 +305,15 @@ void buf_updates_send_splice(buf_T *buf,
// next argument is b:changedtick
args.items[1] = INTEGER_OBJ(buf_get_changedtick(buf));
args.items[2] = INTEGER_OBJ(start_line);
args.items[2] = INTEGER_OBJ(start_row);
args.items[3] = INTEGER_OBJ(start_col);
args.items[4] = INTEGER_OBJ(oldextent_line);
args.items[5] = INTEGER_OBJ(oldextent_col);
args.items[6] = INTEGER_OBJ(newextent_line);
args.items[7] = INTEGER_OBJ(newextent_col);
args.items[4] = INTEGER_OBJ(start_byte);
args.items[5] = INTEGER_OBJ(old_row);
args.items[6] = INTEGER_OBJ(old_col);
args.items[7] = INTEGER_OBJ(old_byte);
args.items[8] = INTEGER_OBJ(new_row);
args.items[9] = INTEGER_OBJ(new_col);
args.items[10] = INTEGER_OBJ(new_byte);
textlock++;
Object res = executor_exec_lua_cb(cb.on_bytes, "bytes", args, true, NULL);