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patch 8.2.1320: Vim9: cannot declare some single letter variables

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Problem:    Vim9: cannot declare some single letter variables.
Solution:   Do not recognize a colon for a namespace for single letter
            variables. (closes #6547)
This commit is contained in:
Bram Moolenaar
2020-07-29 19:18:00 +02:00
parent ac7bf8c4bf
commit 33afa2447b
3 changed files with 38 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
src/testdir/test_vim9_script.vim
View File

@ -109,6 +109,9 @@ def Test_assignment()
call CheckDefFailure(['&ts = 3', 'let asdf'], 'E1022:')
&ts = 8
call CheckDefFailure(['let s:var = 123'], 'E1101:')
call CheckDefFailure(['let s:var: number'], 'E1101:')
g:inc_counter += 1
assert_equal(2, g:inc_counter)
@ -136,6 +139,28 @@ def Test_assignment()
assert_equal('noneagain', v:errmsg)
call CheckDefFailure(['v:errmsg += "more"'], 'E1013:')
call CheckDefFailure(['v:errmsg += 123'], 'E1013:')
# single letter variables
a = 123
assert_equal(123, a)
let b: number
b = 123
assert_equal(123, b)
let g: number
g = 123
assert_equal(123, g)
let s: number
s = 123
assert_equal(123, s)
let t: number
t = 123
assert_equal(123, t)
let v: number
v = 123
assert_equal(123, v)
let w: number
w = 123
assert_equal(123, w)
enddef
def Test_vim9_single_char_vars()

2
src/version.c
View File

@ -754,6 +754,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1320,
/**/
1319,
/**/

16
src/vim9compile.c
View File

@ -5237,7 +5237,7 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
goto theend;
}
}
else if (STRNCMP(var_start, "g:", 2) == 0)
else if (varlen > 1 && STRNCMP(var_start, "g:", 2) == 0)
{
dest = dest_global;
if (is_decl)
@ -5246,7 +5246,7 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
goto theend;
}
}
else if (STRNCMP(var_start, "b:", 2) == 0)
else if (varlen > 1 && STRNCMP(var_start, "b:", 2) == 0)
{
dest = dest_buffer;
if (is_decl)
@ -5255,7 +5255,7 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
goto theend;
}
}
else if (STRNCMP(var_start, "w:", 2) == 0)
else if (varlen > 1 && STRNCMP(var_start, "w:", 2) == 0)
{
dest = dest_window;
if (is_decl)
@ -5264,7 +5264,7 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
goto theend;
}
}
else if (STRNCMP(var_start, "t:", 2) == 0)
else if (varlen > 1 && STRNCMP(var_start, "t:", 2) == 0)
{
dest = dest_tab;
if (is_decl)
@ -5273,7 +5273,7 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
goto theend;
}
}
else if (STRNCMP(var_start, "v:", 2) == 0)
else if (varlen > 1 && STRNCMP(var_start, "v:", 2) == 0)
{
typval_T *vtv;
int di_flags;
@ -5337,13 +5337,17 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
goto theend;
}
}
else if (STRNCMP(var_start, "s:", 2) == 0
else if ((varlen > 1 && STRNCMP(var_start, "s:", 2) == 0)
|| lookup_script(var_start, varlen) == OK
|| find_imported(var_start, varlen, cctx) != NULL)
{
dest = dest_script;
if (is_decl)
{
if ((varlen > 1 && STRNCMP(var_start, "s:", 2) == 0))
semsg(_("E1101: Cannot declare a script variable in a function: %s"),
name);
else
semsg(_("E1054: Variable already declared in the script: %s"),
name);
goto theend;