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| author | Ed Schonberg <schonberg@adacore.com> | 2018-05-22 13:23:46 +0000 |
|---|---|---|
| committer | Pierre-Marie de Rodat <pmderodat@gcc.gnu.org> | 2018-05-22 13:23:46 +0000 |
| commit | 651822aec7caa0ed1aa8cb3dfb07a380b4595b08 (patch) | |
| tree | e6e5513bfff1627d63e13e3e49a4929762591082 /gcc/ada/atree.h | |
| parent | 41ff70d9a5c91c3540d3fdb08ddc58d1e1d00eab (diff) | |
| download | gcc-651822aec7caa0ed1aa8cb3dfb07a380b4595b08.zip gcc-651822aec7caa0ed1aa8cb3dfb07a380b4595b08.tar.gz gcc-651822aec7caa0ed1aa8cb3dfb07a380b4595b08.tar.bz2 | |
[Ada] Spurious visibility error in a nested instance with formal package
This patch fixes a spurious visibility error with a nested instance of a
generic unit with a formal package, when the actual for it is a formal
package PA of an enclosing generic, and there are subsequent uses of the
formals of PA in that generic unit.
2018-05-22 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* einfo.ads, einfo.adb: New attribute Hidden_In_Formal_Instance,
defined on packages that are actuals for formal packages, in order to
set/reset the visibility of the formals of a formal package with given
actuals, when there are subsequent uses of those formals in the
enclosing generic, as required by RN 12.7 (10).
* atree.ads, atree.adb: Add operations for Elist30.
* atree.h: Add Elist30.
* sem_ch12.adb (Analyze_Formal_Package_Instantiation): Collect formals
that are not defaulted and are thus not visible within the current
instance.
(Check_Formal_Packages): Reset visibility of formals of a formal
package that are not defaulted, on exit from current instance.
gcc/testsuite/
* gnat.dg/gen_formal_pkg.adb, gnat.dg/gen_formal_pkg_a.ads,
gnat.dg/gen_formal_pkg_b.ads, gnat.dg/gen_formal_pkg_w.ads: New
testcase.
From-SVN: r260520
Diffstat (limited to 'gcc/ada/atree.h')
| -rw-r--r-- | gcc/ada/atree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/ada/atree.h b/gcc/ada/atree.h index 60ec64b..338affe 100644 --- a/gcc/ada/atree.h +++ b/gcc/ada/atree.h @@ -530,6 +530,7 @@ extern Node_Id Current_Error_Node; #define Elist25(N) Field25 (N) #define Elist26(N) Field26 (N) #define Elist29(N) Field29 (N) +#define Elist30(N) Field30 (N) #define Elist36(N) Field36 (N) #define Name1(N) Field1 (N) |