From: Owen Avery <[email protected]>
gcc/rust/ChangeLog:
* ast/rust-pattern.h:
(ReferencePattern::is_double_reference): Add method.
(ReferencePattern::get_is_mut): Add method.
* hir/rust-ast-lower-pattern.cc
(ASTLoweringPattern::visit): Add ReferencePattern visitor.
* hir/rust-ast-lower-pattern.h:
(ASTLoweringPattern::visit): Add ReferencePattern visitor.
Signed-off-by: Owen Avery <[email protected]>
---
gcc/rust/ast/rust-pattern.h | 4 ++++
gcc/rust/hir/rust-ast-lower-pattern.cc | 29 ++++++++++++++++++++++++++
gcc/rust/hir/rust-ast-lower-pattern.h | 1 +
3 files changed, 34 insertions(+)
diff --git a/gcc/rust/ast/rust-pattern.h b/gcc/rust/ast/rust-pattern.h
index c86bdf6f820..cf5d2ead10d 100644
--- a/gcc/rust/ast/rust-pattern.h
+++ b/gcc/rust/ast/rust-pattern.h
@@ -469,6 +469,10 @@ public:
return pattern;
}
+ bool is_double_reference () const { return has_two_amps; }
+
+ bool get_is_mut () const { return is_mut; }
+
NodeId get_node_id () const { return node_id; }
NodeId get_pattern_node_id () const override final { return node_id; }
diff --git a/gcc/rust/hir/rust-ast-lower-pattern.cc
b/gcc/rust/hir/rust-ast-lower-pattern.cc
index a0fd8dded38..1961c740624 100644
--- a/gcc/rust/hir/rust-ast-lower-pattern.cc
+++ b/gcc/rust/hir/rust-ast-lower-pattern.cc
@@ -249,5 +249,34 @@ ASTLoweringPattern::visit (AST::GroupedPattern &pattern)
pattern.get_pattern_in_parens ()->accept_vis (*this);
}
+void
+ASTLoweringPattern::visit (AST::ReferencePattern &pattern)
+{
+ auto crate_num = mappings->get_current_crate ();
+ Analysis::NodeMapping mapping (crate_num, pattern.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+
+ HIR::Pattern *inner
+ = ASTLoweringPattern::translate (pattern.get_referenced_pattern ().get ());
+
+ translated
+ = new HIR::ReferencePattern (mapping, std::unique_ptr<HIR::Pattern>
(inner),
+ pattern.get_is_mut () ? Mutability::Mut
+ : Mutability::Imm,
+ pattern.get_locus ());
+
+ if (pattern.is_double_reference ())
+ {
+ Analysis::NodeMapping mapping2 (crate_num, pattern.get_node_id (),
+ mappings->get_next_hir_id (crate_num),
+ UNKNOWN_LOCAL_DEFID);
+ translated
+ = new HIR::ReferencePattern (mapping2,
+ std::unique_ptr<HIR::Pattern> (translated),
+ Mutability::Imm, pattern.get_locus ());
+ }
+}
+
} // namespace HIR
} // namespace Rust
diff --git a/gcc/rust/hir/rust-ast-lower-pattern.h
b/gcc/rust/hir/rust-ast-lower-pattern.h
index 0075e27e9c0..2d175a25cb4 100644
--- a/gcc/rust/hir/rust-ast-lower-pattern.h
+++ b/gcc/rust/hir/rust-ast-lower-pattern.h
@@ -40,6 +40,7 @@ public:
void visit (AST::LiteralPattern &pattern) override;
void visit (AST::RangePattern &pattern) override;
void visit (AST::GroupedPattern &pattern) override;
+ void visit (AST::ReferencePattern &pattern) override;
private:
ASTLoweringPattern ();
--
2.40.0
--
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