module: Add load_items() function

2 files changed, 35 insertions, 0 deletions

diff --git a/gcc/rust/ast/rust-ast-full-test.cc b/gcc/rust/ast/rust-ast-full-test.cc
index 6241710..888a834d 100644
--- a/gcc/rust/ast/rust-ast-full-test.cc
+++ b/gcc/rust/ast/rust-ast-full-test.cc
@@ -24,6 +24,8 @@ along with GCC; see the file COPYING3.  If not see
 #include "rust-diagnostics.h"
 #include "rust-ast-visitor.h"
 #include "rust-session-manager.h"
+#include "rust-lex.h"
+#include "rust-parse.h"
 #include "operator.h"
 
 /* Compilation unit used for various AST-related functions that would make
@@ -4083,6 +4085,37 @@ Module::get_filename ()
 }
 
 void
+Module::load_items ()
+{
+  std::string mod_file = get_filename ();
+
+  // We will already have errored out appropriately in the get_filename ()
+  // method
+  if (mod_file.empty ())
+    return;
+
+  RAIIFile file_wrap (mod_file.c_str ());
+  Linemap *linemap = Session::get_instance ().linemap;
+
+  if (file_wrap.get_raw () == nullptr)
+    rust_fatal_error (Location (), "cannot open module file %s: %m",
+		      mod_file.c_str ());
+
+  rust_debug ("Attempting to parse file %s", mod_file.c_str ());
+
+  Lexer lex (mod_file.c_str (), std::move (file_wrap), linemap);
+  Parser<Lexer> parser (std::move (lex));
+
+  auto items = parser.parse_items ();
+
+  for (const auto &error : parser.get_errors ())
+    error.emit_error ();
+
+  items = std::move(items);
+  kind = ModuleKind::LOADED;
+}
+
+void
 Attribute::parse_attr_to_meta_item ()
 {
   // only parse if has attribute input and not already parsed
diff --git a/gcc/rust/ast/rust-item.h b/gcc/rust/ast/rust-item.h
index 0578329..112ca28 100644
--- a/gcc/rust/ast/rust-item.h
+++ b/gcc/rust/ast/rust-item.h
@@ -1053,6 +1053,8 @@ public:
 
   // Search for the filename associated with an external module
   std::string get_filename ();
+  // Load the items contained in an external module
+  void load_items ();
 
   void accept_vis (ASTVisitor &vis) override;