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patch 8.2.2744: Vim9: no way to explicitly ignore an argument

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Problem:    Vim9: no way to explicitly ignore an argument.
Solution:   Use the underscore as the name for an ignored argument.
This commit is contained in:
Bram Moolenaar
2021-04-10 17:18:09 +02:00
parent 599410cb3c
commit 962c43bf0d
7 changed files with 86 additions and 5 deletions
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11
src/vim9compile.c
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@@ -4416,6 +4416,12 @@ compile_expr7(
// "name" or "name()"
p = to_name_end(*arg, TRUE);
if (p - *arg == (size_t)1 && **arg == '_')
{
emsg(_(e_cannot_use_underscore_here));
return FAIL;
}
if (*p == '(')
{
r = compile_call(arg, p - *arg, cctx, ppconst, 0);
@@ -6378,6 +6384,11 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx)
semsg(_(e_cannot_assign_to_constant), lhs.lhs_name);
goto theend;
}
if (is_decl && lhs.lhs_name[0] == '_' && lhs.lhs_name[1] == NUL)
{
emsg(_(e_cannot_use_underscore_here));
goto theend;
}
if (!heredoc)
{