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* [gcc/devel/rust/master] parser: Parse external type item
@ 2023-02-28 22:36 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2023-02-28 22:36 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:689c421dd7a92bba7e31342a034fb25b85407b37
commit 689c421dd7a92bba7e31342a034fb25b85407b37
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date: Mon Feb 27 10:10:51 2023 +0100
parser: Parse external type item
Add the code to parse type item declaration within an extern block.
gcc/rust/ChangeLog:
* parse/rust-parse-impl.h (Parser::parse_external_type_item):
Add function to parser an external type item.
(Parser::parse_external_item):
Add identification and parsing for external type items.
* parse/rust-parse.h:
Add parser_external_type_item prototype.
Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Diff:
---
gcc/rust/parse/rust-parse-impl.h | 31 +++++++++++++++++++++++++++++++
gcc/rust/parse/rust-parse.h | 2 ++
2 files changed, 33 insertions(+)
diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index 7807d750ba2..7988d12309d 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -3990,6 +3990,34 @@ Parser<ManagedTokenSource>::parse_lifetime ()
}
}
+template <typename ManagedTokenSource>
+std::unique_ptr<AST::ExternalTypeItem>
+Parser<ManagedTokenSource>::parse_external_type_item (AST::Visibility vis,
+ AST::AttrVec outer_attrs)
+{
+ Location locus = lexer.peek_token ()->get_locus ();
+ skip_token (TYPE);
+
+ const_TokenPtr alias_name_tok = expect_token (IDENTIFIER);
+ if (alias_name_tok == nullptr)
+ {
+ Error error (lexer.peek_token ()->get_locus (),
+ "could not parse identifier in external opaque type");
+ add_error (std::move (error));
+
+ skip_after_semicolon ();
+ return nullptr;
+ }
+
+ if (!skip_token (SEMICOLON))
+ return nullptr;
+
+ return std::unique_ptr<AST::ExternalTypeItem> (
+ new AST::ExternalTypeItem (std::move (alias_name_tok->get_str ()),
+ std::move (vis), std::move (outer_attrs),
+ std::move (locus)));
+}
+
// Parses a "type alias" (typedef) item.
template <typename ManagedTokenSource>
std::unique_ptr<AST::TypeAlias>
@@ -6011,6 +6039,9 @@ Parser<ManagedTokenSource>::parse_external_item ()
std::move (variadic_attrs), std::move (vis),
std::move (outer_attrs), locus));
}
+ case TYPE:
+ return parse_external_type_item (std::move (vis),
+ std::move (outer_attrs));
default:
// error
add_error (
diff --git a/gcc/rust/parse/rust-parse.h b/gcc/rust/parse/rust-parse.h
index 54a87c946f9..42168e961e3 100644
--- a/gcc/rust/parse/rust-parse.h
+++ b/gcc/rust/parse/rust-parse.h
@@ -273,6 +273,8 @@ private:
template <typename EndTokenPred>
std::vector<AST::Lifetime> parse_lifetime_bounds (EndTokenPred is_end_token);
AST::Lifetime parse_lifetime ();
+ std::unique_ptr<AST::ExternalTypeItem>
+ parse_external_type_item (AST::Visibility vis, AST::AttrVec outer_attrs);
std::unique_ptr<AST::TypeAlias> parse_type_alias (AST::Visibility vis,
AST::AttrVec outer_attrs);
std::unique_ptr<AST::Struct> parse_struct (AST::Visibility vis,
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