From 6701c7769965b8882a89d2db58f29e364b3501f2 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Thu, 30 Jul 2020 17:09:58 +0200 Subject: dissect: support _Generic() a bit more Change do_expression(EXPR_GENERIC) to inspect expr->control/map/def. The is the minimal "better than nothing" change, technically incorrect but still useful for the indexing. Example: void func(void) { _Generic(a, int: b, void: c, default: d, ) = e; } output: 1:6 def f func void ( ... ) 3:18 func --- v a bad type 4:33 func -w- v b bad type 5:33 func -w- v c bad type 6:33 func -w- v d bad type 7:13 func -r- v e bad type Signed-off-by: Oleg Nesterov Signed-off-by: Luc Van Oostenryck --- dissect.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/dissect.c b/dissect.c index 0272ebd2..582e8fc3 100644 --- a/dissect.c +++ b/dissect.c @@ -342,7 +342,6 @@ again: case EXPR_TYPE: // [struct T]; Why ??? case EXPR_VALUE: case EXPR_FVALUE: - case EXPR_GENERIC: break; case EXPR_LABEL: ret = &label_ctype; @@ -472,6 +471,17 @@ again: } while ((expr = expr->down)); } + break; case EXPR_GENERIC: { + struct type_expression *map; + + do_expression(U_VOID, expr->control); + + for (map = expr->map; map; map = map->next) + ret = do_expression(mode, map->expr); + if (expr->def) + ret = do_expression(mode, expr->def); + } + break; case EXPR_SYMBOL: ret = report_symbol(mode, expr); } -- cgit 1.2.3-korg