Ensure TupleStructPattern and TuplePattern have items

Note that instances of both classes which have been
moved from will have (items == nullptr).

gcc/rust/ChangeLog:

	* ast/rust-pattern.h
	(class TupleStructPattern): Assert that items != nullptr.
	(class TuplePattern): Likewise.
	(TupleStructPattern::has_items): Remove.
	(TuplePattern::has_tuple_pattern_items): Likewise.
	* parse/rust-parse-impl.h
	(Parser::parse_ident_leading_pattern):
	Prevent construction of TupleStructPattern with
	(items == nullptr).
	(Parser::parse_pattern_no_alt): Likewise.
	* ast/rust-ast-collector.cc
	(TokenCollector::visit): Remove usage of
	TupleStructPattern::has_items.
	* ast/rust-ast-visitor.cc
	(DefaultASTVisitor::visit): Likewise.
	* resolve/rust-early-name-resolver.cc
	(EarlyNameResolver::visit): Likewise.

gcc/testsuite/ChangeLog:

	* rust/compile/pattern-struct.rs: Fix test.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

1 files changed, 0 insertions, 16 deletions

diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index ac17545..9d9722e 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -10631,14 +10631,6 @@ Parser<ManagedTokenSource>::parse_pattern_no_alt ()
 	      // tuple struct
 	      lexer.skip_token ();
 
-	      // check if empty tuple
-	      if (lexer.peek_token ()->get_id () == RIGHT_PAREN)
-		{
-		  lexer.skip_token ();
-		  return std::unique_ptr<AST::TupleStructPattern> (
-		    new AST::TupleStructPattern (std::move (path), nullptr));
-		}
-
 	      // parse items
 	      std::unique_ptr<AST::TupleStructItems> items
 		= parse_tuple_struct_items ();
@@ -11094,14 +11086,6 @@ Parser<ManagedTokenSource>::parse_ident_leading_pattern ()
 	// DEBUG
 	rust_debug ("parsing tuple struct pattern");
 
-	// check if empty tuple
-	if (lexer.peek_token ()->get_id () == RIGHT_PAREN)
-	  {
-	    lexer.skip_token ();
-	    return std::unique_ptr<AST::TupleStructPattern> (
-	      new AST::TupleStructPattern (std::move (path), nullptr));
-	  }
-
 	// parse items
 	std::unique_ptr<AST::TupleStructItems> items
 	  = parse_tuple_struct_items ();