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better warnings for unused/undefined parameters

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This commit is contained in:
ceriel
1989-03-13 15:04:05 +00:00
parent 0975784c8d
commit c81a6a0c7a
3 changed files with 15 additions and 7 deletions
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15
lang/m2/comp/walk.c
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@@ -897,24 +897,33 @@ UseWarnings(df)
if (! (df->df_kind & (D_VARIABLE|D_PROCEDURE|D_TYPE|D_CONST))) {
return;
}
switch(df->df_flags & (D_USED|D_DEFINED)) {
switch(df->df_flags & (D_USED|D_DEFINED|D_VALPAR|D_VARPAR)) {
case 0:
case D_VALPAR:
case D_VARPAR:
warning = "never used/assigned";
break;
case D_USED|D_VARPAR:
warning = "never assigned, could be value parameter";
break;
case D_USED:
warning = "never assigned";
break;
case D_DEFINED:
case D_DEFINED|D_VALPAR:
warning = "never used";
break;
case D_USED|D_DEFINED:
default:
return;
}
warn:
if (warning) {
node_warning(df->df_scope->sc_end,
W_ORDINARY,
"identifier \"%s\" %s",
"%s \"%s\" %s",
(df->df_flags & D_VALPAR) ? "value parameter" :
(df->df_flags & D_VARPAR) ? "variable parameter" :
"identifier",
df->df_idf->id_text, warning);
}
}