patch 8.2.2290: Vim9: unlet of global variable cannot be compiled
Problem: Vim9: unlet of global variable cannot be compiled.
Solution: Skip over variables that might be defined later. Give an error if
a subscript is found. (closes #7585)
diff --git a/src/vim9compile.c b/src/vim9compile.c
index 79d28c2..412f0c9 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -6130,6 +6130,12 @@
// Normal name. Only supports g:, w:, t: and b: namespaces.
*name_end = NUL;
+ if (vim_strchr(p, '.') != NULL || vim_strchr(p, '[') != NULL)
+ {
+ *name_end = cc;
+ goto failed;
+ }
+
if (*p == '$')
ret = generate_UNLET(cctx, ISN_UNLETENV, p + 1, eap->forceit);
else if (check_vim9_unlet(p) == FAIL)
@@ -6141,8 +6147,11 @@
return ret;
}
+failed:
// TODO: unlet {list}[idx]
// TODO: unlet {dict}[key]
+ // complication: {list} can be global while "idx" is local, thus we can't
+ // call ex_unlet().
emsg("Sorry, :unlet not fully implemented yet");
return FAIL;
}
@@ -6163,7 +6172,8 @@
}
// TODO: this doesn't work for local variables
- ex_unletlock(eap, p, 0, GLV_NO_AUTOLOAD, compile_unlet, cctx);
+ ex_unletlock(eap, p, 0, GLV_NO_AUTOLOAD | GLV_COMPILING,
+ compile_unlet, cctx);
return eap->nextcmd == NULL ? (char_u *)"" : eap->nextcmd;
}