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authorzeertzjq <zeertzjq@outlook.com>2022-11-22 06:52:21 +0800
committerzeertzjq <zeertzjq@outlook.com>2022-11-22 07:21:26 +0800
commit9b768752353d3cf99c6cb02e6c1f9d70c029ecb6 (patch)
tree4625bc963ec1a910304039bd6573e0b10935cc5e /src
parent5836c89ed0506748458e495b2751789e81057519 (diff)
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vim-patch:9.0.0916: getbufline() is inefficient for getting a single line
Problem: getbufline() is inefficient for getting a single line. Solution: Add getbufoneline(). https://github.com/vim/vim/commit/ce30ccc06af7f2c03762e5b18dde37b26ea6ec42 Cherry-pick part of usr_41.txt from patch 8.1.1628. Co-authored-by: Bram Moolenaar <Bram@vim.org>
Diffstat (limited to 'src')
-rw-r--r--src/nvim/eval.lua1
-rw-r--r--src/nvim/eval/funcs.c19
-rw-r--r--src/nvim/testdir/test_bufline.vim5
3 files changed, 22 insertions, 3 deletions
diff --git a/src/nvim/eval.lua b/src/nvim/eval.lua
index dd30f51eb4..14be6aba73 100644
--- a/src/nvim/eval.lua
+++ b/src/nvim/eval.lua
@@ -146,6 +146,7 @@ return {
get={args={2, 3}, base=1},
getbufinfo={args={0, 1}, base=1},
getbufline={args={2, 3}, base=1},
+ getbufoneline={args=2, base=1},
getbufvar={args={2, 3}, base=1},
getchangelist={args={0, 1}, base=1},
getchar={args={0, 1}},
diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index 12568ec965..8666aa4f35 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -2671,8 +2671,9 @@ static void get_buffer_lines(buf_T *buf, linenr_T start, linenr_T end, int retli
}
}
-/// "getbufline()" function
-static void f_getbufline(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
+/// @param retlist true: "getbufline()" function
+/// false: "getbufoneline()" function
+static void getbufline(typval_T *argvars, typval_T *rettv, bool retlist)
{
const int did_emsg_before = did_emsg;
buf_T *const buf = tv_get_buf_from_arg(&argvars[0]);
@@ -2684,7 +2685,19 @@ static void f_getbufline(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
? lnum
: tv_get_lnum_buf(&argvars[2], buf));
- get_buffer_lines(buf, lnum, end, true, rettv);
+ get_buffer_lines(buf, lnum, end, retlist, rettv);
+}
+
+/// "getbufline()" function
+static void f_getbufline(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
+{
+ getbufline(argvars, rettv, true);
+}
+
+/// "getbufoneline()" function
+static void f_getbufoneline(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
+{
+ getbufline(argvars, rettv, false);
}
/// "getchangelist()" function
diff --git a/src/nvim/testdir/test_bufline.vim b/src/nvim/testdir/test_bufline.vim
index 9c4e48734a..d4dee38620 100644
--- a/src/nvim/testdir/test_bufline.vim
+++ b/src/nvim/testdir/test_bufline.vim
@@ -11,7 +11,9 @@ func Test_setbufline_getbufline()
hide
call assert_equal(0, setbufline(b, 1, ['foo', 'bar']))
call assert_equal(['foo'], getbufline(b, 1))
+ call assert_equal('foo', getbufoneline(b, 1))
call assert_equal(['bar'], getbufline(b, '$'))
+ call assert_equal('bar', getbufoneline(b, '$'))
call assert_equal(['foo', 'bar'], getbufline(b, 1, 2))
exe "bd!" b
call assert_equal([], getbufline(b, 1, 2))
@@ -35,8 +37,11 @@ func Test_setbufline_getbufline()
call assert_equal(0, setbufline(b, 4, ['d', 'e']))
call assert_equal(['c'], b->getbufline(3))
+ call assert_equal('c', b->getbufoneline(3))
call assert_equal(['d'], getbufline(b, 4))
+ call assert_equal('d', getbufoneline(b, 4))
call assert_equal(['e'], getbufline(b, 5))
+ call assert_equal('e', getbufoneline(b, 5))
call assert_equal([], getbufline(b, 6))
call assert_equal([], getbufline(b, 2, 1))