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* [gcc/devel/rust/master] Unit structs are not concrete when they need substitutions
@ 2022-09-01 6:46 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2022-09-01 6:46 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:63403f0af7203f3b3c4bc2fef52fee884bb728b8
commit 63403f0af7203f3b3c4bc2fef52fee884bb728b8
Author: Philip Herron <philip.herron@embecosm.com>
Date: Wed Aug 31 17:16:13 2022 +0100
Unit structs are not concrete when they need substitutions
Fixes #1518
Diff:
---
gcc/rust/typecheck/rust-tyty.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/gcc/rust/typecheck/rust-tyty.h b/gcc/rust/typecheck/rust-tyty.h
index 649f133edb1..74c8c354897 100644
--- a/gcc/rust/typecheck/rust-tyty.h
+++ b/gcc/rust/typecheck/rust-tyty.h
@@ -1362,6 +1362,11 @@ public:
bool is_concrete () const override final
{
+ if (is_unit ())
+ {
+ return !needs_substitution ();
+ }
+
for (auto &variant : variants)
{
for (auto &field : variant->get_fields ())
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