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vim-patch:8.2.3016: confusing error when expression is followed by comma

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Problem:    Confusing error when expression is followed by comma.
Solution:   Give a different error for trailing text. (closes vim/vim#8395)

fae55a9cb0

Omit test_eval_stuff.vim and test_viminfo.vim: changes tests are N/A.

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq 2022-11-06 06:47:54 +08:00
parent fa2ed8ca1f
commit 7d7208a88b
3 changed files with 13 additions and 3 deletions
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13
src/nvim/eval.c
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@ -2277,10 +2277,15 @@ int eval0(char *arg, typval_T *rettv, char **nextcmd, int evaluate)
char *p;
const int did_emsg_before = did_emsg;
const int called_emsg_before = called_emsg;
bool end_error = false;
p = skipwhite(arg);
ret = eval1(&p, rettv, evaluate);
if (ret == FAIL || !ends_excmd(*p)) {
if (ret != FAIL) {
end_error = !ends_excmd(*p);
}
if (ret == FAIL || end_error) {
if (ret != FAIL) {
tv_clear(rettv);
}
@ -2290,7 +2295,11 @@ int eval0(char *arg, typval_T *rettv, char **nextcmd, int evaluate)
// Also check called_emsg for when using assert_fails().
if (!aborting() && did_emsg == did_emsg_before
&& called_emsg == called_emsg_before) {
semsg(_(e_invexpr2), arg);
if (end_error) {
semsg(_(e_trailing_arg), p);
} else {
semsg(_(e_invexpr2), arg);
}
}
ret = FAIL;
}

1
src/nvim/testdir/test_let.vim
View File

@ -297,6 +297,7 @@ func Test_let_errors()
let ch = test_null_channel()
call assert_fails('let ch += 1', 'E734:')
endif
call assert_fails('let name = "a" .. "b",', 'E488: Trailing characters: ,')
" This test works only when the language is English
if v:lang == "C" || v:lang =~ '^[Ee]n'

2
src/nvim/testdir/test_vimscript.vim
View File

@ -5569,7 +5569,7 @@ func Test_expr_eval_error_msg()
call T(19, '{(1} + CONT(19)', 'E110', "Missing ')'")
call T(20, '("abc"[1) + CONT(20)', 'E111', "Missing ']'")
call T(21, '(1 +) + CONT(21)', 'E15', "Invalid expression")
call T(22, '1 2 + CONT(22)', 'E15', "Invalid expression")
call T(22, '1 2 + CONT(22)', 'E488', "Trailing characters: 2 +")
call T(23, '(1 ? 2) + CONT(23)', 'E109', "Missing ':' after '?'")
call T(24, '("abc) + CONT(24)', 'E114', "Missing quote")
call T(25, "('abc) + CONT(25)", 'E115', "Missing quote")