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From: Thomas Schwinge <tschwinge@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc/devel/rust/master] parser: Parse external type item Date: Tue, 28 Feb 2023 22:36:44 +0000 (GMT) [thread overview] Message-ID: <20230228223644.4DEE93858C50@sourceware.org> (raw) 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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