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warn when local variables are redecalred in the same scope. This won't normally cause problems, but it can save a lot of grief when converting traditional quakec code.

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Bill Currie 2007-04-12 09:39:42 +00:00 committed by Jeff Teunissen
parent 8c31f12d5c
commit cfeb14fecf
1 changed files with 19 additions and 4 deletions
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23
tools/qfcc/source/qc-parse.y
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@ -549,12 +549,27 @@ code_func
def_name
: identifier
{
if (current_scope->type == sc_local
&& current_scope->parent->type == sc_params) {
scope_type st = current_scope->type;
// traditional functions have only the one scope
//FIXME should the scope be set to local when the params scope
//is created in traditional mode?
if (options.traditional && st == sc_params)
st = sc_local;
if (st == sc_local) {
def_t *def = get_def (0, $1, current_scope, st_none);
if (def) {
if (def->scope->type == sc_params)
warning (0, "local %s shadows param %s", $1, def->name);
if (def->scope->type == sc_params
&& current_scope->parent->type == sc_params) {
warning (0, "local %s shadows param %s", $1,
def->name);
}
if (def->scope == current_scope) {
expr_t e;
warning (0, "local %s redeclared", $1);
e.file = def->file;
e.line = def->line;
warning (&e, "previously declared here");
}
}
}
$$ = get_def ($<type>0, $1, current_scope, current_storage);