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refactor(eval): move diff functions to diff.c (#33085)

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They were moved in Vim in patch 8.1.1989.
This change is required to port patch 9.1.1243.
This commit is contained in:
zeertzjq
2025-03-27 21:35:20 +08:00
committed by GitHub
parent 703f4037c4
commit d01d476480
3 changed files with 59 additions and 58 deletions
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58
src/nvim/diff.c
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@@ -29,6 +29,7 @@
#include "nvim/drawscreen.h"
#include "nvim/errors.h"
#include "nvim/eval.h"
#include "nvim/eval/typval.h"
#include "nvim/ex_cmds.h"
#include "nvim/ex_cmds_defs.h"
#include "nvim/ex_docmd.h"
@@ -3488,3 +3489,60 @@ static int xdiff_out(int start_a, int count_a, int start_b, int count_b, void *p
}));
return 0;
}
/// "diff_filler()" function
void f_diff_filler(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
{
rettv->vval.v_number = MAX(0, diff_check(curwin, tv_get_lnum(argvars)));
}
/// "diff_hlID()" function
void f_diff_hlID(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
{
linenr_T lnum = tv_get_lnum(argvars);
static linenr_T prev_lnum = 0;
static varnumber_T changedtick = 0;
static int fnum = 0;
static int change_start = 0;
static int change_end = 0;
static hlf_T hlID = (hlf_T)0;
if (lnum < 0) { // ignore type error in {lnum} arg
lnum = 0;
}
if (lnum != prev_lnum
|| changedtick != buf_get_changedtick(curbuf)
|| fnum != curbuf->b_fnum) {
// New line, buffer, change: need to get the values.
int linestatus = 0;
int filler_lines = diff_check_with_linestatus(curwin, lnum, &linestatus);
if (filler_lines < 0 || linestatus < 0) {
if (filler_lines == -1 || linestatus == -1) {
change_start = MAXCOL;
change_end = -1;
if (diff_find_change(curwin, lnum, &change_start, &change_end)) {
hlID = HLF_ADD; // added line
} else {
hlID = HLF_CHD; // changed line
}
} else {
hlID = HLF_ADD; // added line
}
} else {
hlID = (hlf_T)0;
}
prev_lnum = lnum;
changedtick = buf_get_changedtick(curbuf);
fnum = curbuf->b_fnum;
}
if (hlID == HLF_CHD || hlID == HLF_TXD) {
int col = (int)tv_get_number(&argvars[1]) - 1; // Ignore type error in {col}.
if (col >= change_start && col <= change_end) {
hlID = HLF_TXD; // Changed text.
} else {
hlID = HLF_CHD; // Changed line.
}
}
rettv->vval.v_number = hlID;
}