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authorBram Moolenaar <Bram@vim.org>2017-01-29 23:26:37 +0100
committerBram Moolenaar <Bram@vim.org>2017-01-29 23:26:37 +0100
commita4c906a4a111cbe59cf5f1e8354a36ba83e0a444 (patch)
tree3405689f04e8e4a0d56ac7281152001fbff94f2f
parentc593fee0e5e850f7e75be41f5d1751f28892a27f (diff)
patch 8.0.0271: may get ml_get error when :tcldo deletes linesv8.0.0271
Problem: May get ml_get error when :tcldo deletes lines or switches to another buffer. (Nikolai Pavlov, closes #1421) Solution: Check the buffer and line every time.
-rw-r--r--src/Makefile1
-rw-r--r--src/if_tcl.c5
-rw-r--r--src/testdir/Make_all.mak1
-rw-r--r--src/testdir/test_tcl.vim23
-rw-r--r--src/version.c2
5 files changed, 31 insertions, 1 deletions
diff --git a/src/Makefile b/src/Makefile
index f26a1bf33c..922a09bfd5 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2198,6 +2198,7 @@ test_arglist \
test_tabpage \
test_tagcase \
test_tagjump \
+ test_tcl \
test_textobjects \
test_timers \
test_true_false \
diff --git a/src/if_tcl.c b/src/if_tcl.c
index 1e856c7af4..9b47f1b045 100644
--- a/src/if_tcl.c
+++ b/src/if_tcl.c
@@ -1958,6 +1958,7 @@ ex_tcldo(exarg_T *eap)
char var_line[VARNAME_SIZE];
linenr_T first_line = 0;
linenr_T last_line = 0;
+ buf_T *was_curbuf = curbuf;
rs = eap->line1;
re = eap->line2;
@@ -1979,6 +1980,8 @@ ex_tcldo(exarg_T *eap)
}
while (err == TCL_OK && rs <= re)
{
+ if ((linenr_T)rs > curbuf->b_ml.ml_line_count)
+ break;
line = (char *)ml_get_buf(curbuf, (linenr_T)rs, FALSE);
if (!line)
{
@@ -1994,7 +1997,7 @@ ex_tcldo(exarg_T *eap)
#if (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION >= 5) || TCL_MAJOR_VERSION > 8
|| Tcl_LimitExceeded(tclinfo.interp)
#endif
- )
+ || curbuf != was_curbuf)
break;
line = (char *)Tcl_GetVar(tclinfo.interp, var_line, 0);
if (line)
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index bb646ee1b0..c42aae63bd 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -193,6 +193,7 @@ NEW_TESTS = test_arglist.res \
test_substitute.res \
test_syntax.res \
test_system.res \
+ test_tcl.res \
test_textobjects.res \
test_undo.res \
test_usercommands.res \
diff --git a/src/testdir/test_tcl.vim b/src/testdir/test_tcl.vim
new file mode 100644
index 0000000000..ac772cc4d7
--- /dev/null
+++ b/src/testdir/test_tcl.vim
@@ -0,0 +1,23 @@
+" Tests for the Tcl interface.
+
+if !has('tcl')
+ finish
+end
+
+function Test_tcldo()
+ " Check deleting lines does not trigger ml_get error.
+ new
+ call setline(1, ['one', 'two', 'three'])
+ tcldo ::vim::command %d_
+ bwipe!
+
+ " Check switching to another buffer does not trigger ml_get error.
+ new
+ let wincount = winnr('$')
+ call setline(1, ['one', 'two', 'three'])
+ tcldo ::vim::command new
+ call assert_equal(wincount + 1, winnr('$'))
+ bwipe!
+ bwipe!
+endfunc
+
diff --git a/src/version.c b/src/version.c
index 44e5b6fb57..9474c5ea8e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 271,
+/**/
270,
/**/
269,