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authorPierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>2023-10-24 16:01:52 +0200
committerArthur Cohen <arthur.cohen@embecosm.com>2024-01-16 19:13:10 +0100
commitd430d0bac3e447b323c3ff70bdfb83555e5cadd1 (patch)
tree74707783b31d2b4313a840648a64adb31d2fd561
parent55bfecc95a577c58edd93061852e40b93b47d19c (diff)
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gccrs: Add more checks for expr value in early visitors
Early passes visitors may encounter constant item without a value, this is expected as the pass rejecting a constant without an expression is done later during the ast validation. gcc/rust/ChangeLog: * expand/rust-cfg-strip.cc (CfgStrip::visit): Add expr value check. * expand/rust-expand-visitor.cc (ExpandVisitor::visit): Likewise. * resolve/rust-early-name-resolver.cc (EarlyNameResolver::visit): Likewise. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
-rw-r--r--gcc/rust/expand/rust-cfg-strip.cc15
-rw-r--r--gcc/rust/expand/rust-expand-visitor.cc3
-rw-r--r--gcc/rust/resolve/rust-early-name-resolver.cc3
3 files changed, 13 insertions, 8 deletions
diff --git a/gcc/rust/expand/rust-cfg-strip.cc b/gcc/rust/expand/rust-cfg-strip.cc
index 70df446..9c5b92c 100644
--- a/gcc/rust/expand/rust-cfg-strip.cc
+++ b/gcc/rust/expand/rust-cfg-strip.cc
@@ -2293,12 +2293,15 @@ CfgStrip::visit (AST::ConstantItem &const_item)
/* strip any internal sub-expressions - expression itself isn't
* allowed to have external attributes in this position so can't be
* stripped. */
- auto &expr = const_item.get_expr ();
- expr->accept_vis (*this);
- if (expr->is_marked_for_strip ())
- rust_error_at (expr->get_locus (),
- "cannot strip expression in this position - outer "
- "attributes not allowed");
+ if (const_item.has_expr ())
+ {
+ auto &expr = const_item.get_expr ();
+ expr->accept_vis (*this);
+ if (expr->is_marked_for_strip ())
+ rust_error_at (expr->get_locus (),
+ "cannot strip expression in this position - outer "
+ "attributes not allowed");
+ }
}
void
CfgStrip::visit (AST::StaticItem &static_item)
diff --git a/gcc/rust/expand/rust-expand-visitor.cc b/gcc/rust/expand/rust-expand-visitor.cc
index 55d5de0..b0fa004 100644
--- a/gcc/rust/expand/rust-expand-visitor.cc
+++ b/gcc/rust/expand/rust-expand-visitor.cc
@@ -1127,7 +1127,8 @@ ExpandVisitor::visit (AST::ConstantItem &const_item)
{
maybe_expand_type (const_item.get_type ());
- maybe_expand_expr (const_item.get_expr ());
+ if (const_item.has_expr ())
+ maybe_expand_expr (const_item.get_expr ());
}
void
diff --git a/gcc/rust/resolve/rust-early-name-resolver.cc b/gcc/rust/resolve/rust-early-name-resolver.cc
index 63d3ccf..b9307c8 100644
--- a/gcc/rust/resolve/rust-early-name-resolver.cc
+++ b/gcc/rust/resolve/rust-early-name-resolver.cc
@@ -752,7 +752,8 @@ void
EarlyNameResolver::visit (AST::ConstantItem &const_item)
{
const_item.get_type ()->accept_vis (*this);
- const_item.get_expr ()->accept_vis (*this);
+ if (const_item.has_expr ())
+ const_item.get_expr ()->accept_vis (*this);
}
void