[COMMITTED] ada: Fix missing error on function call returning incomplete view
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From: Eric Botcazou <ebotcazou@adacore.com>
Testing for the presence of Non_Limited_View is not sufficient to detect
whether the nonlimited view has been analyzed because Build_Limited_Views
always sets the field on the limited view. Instead the discriminant is
whether this nonlimited view is itself an incomplete type.
gcc/ada/
* sem_ch4.adb (Analyze_Call): Adjust the test to detect the presence
of an incomplete view of a type on a function call.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/sem_ch4.adb | 6 ++++++
1 file changed, 6 insertions(+)
@@ -1540,8 +1540,14 @@ package body Sem_Ch4 is
Set_Etype (N, Full_View (Etype (N)));
+ -- If the call is within a thunk, the nonlimited view should be
+ -- analyzed eventually (see also Analyze_Return_Type).
+
elsif From_Limited_With (Etype (N))
and then Present (Non_Limited_View (Etype (N)))
+ and then
+ (Ekind (Non_Limited_View (Etype (N))) /= E_Incomplete_Type
+ or else Is_Thunk (Current_Scope))
then
Set_Etype (N, Non_Limited_View (Etype (N)));