[gcc/devel/rust/master] dump: Emit visibility when dumping items

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:040c5f8933f58bcac170e0eb42f2c2279cab832b

commit 040c5f8933f58bcac170e0eb42f2c2279cab832b
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Tue Sep 27 15:50:39 2022 +0200

    dump: Emit visibility when dumping items

Diff:
---
 gcc/rust/ast/rust-ast-dump.cc | 44 +++++++++++++++++++++++++++++++++++++++++--
 gcc/rust/ast/rust-ast-dump.h  |  9 +++++++++
 2 files changed, 51 insertions(+), 2 deletions(-)

diff --git a/gcc/rust/ast/rust-ast-dump.cc b/gcc/rust/ast/rust-ast-dump.cc
index 8ad00b5929f..3d1b42d70e3 100644
--- a/gcc/rust/ast/rust-ast-dump.cc
+++ b/gcc/rust/ast/rust-ast-dump.cc
@@ -108,6 +108,31 @@ Dump::emit_attrib (const Attribute &attrib)
   stream << "]";
 }
 
+void
+Dump::emit_visibility (const Visibility &vis)
+{
+  switch (vis.get_vis_type ())
+    {
+    case Visibility::PUB:
+      stream << "pub ";
+      break;
+    case Visibility::PUB_CRATE:
+      stream << "pub(crate) ";
+      break;
+    case Visibility::PUB_SELF:
+      stream << "pub(self) ";
+      break;
+    case Visibility::PUB_SUPER:
+      stream << "pub(super) ";
+      break;
+    case Visibility::PUB_IN_PATH:
+      stream << "pub(in " << vis.get_path ().as_string () << ") ";
+      break;
+    case Visibility::PRIV:
+      break;
+    }
+}
+
 std::ostream &
 Dump::emit_indented_string (const std::string &value,
 			    const std::string &comment)
@@ -522,7 +547,10 @@ Dump::visit (TypeBoundWhereClauseItem &item)
 void
 Dump::visit (Method &method)
 {
-  stream << indentation << "fn " << method.get_method_name () << '(';
+  // FIXME: Do we really need to dump the indentation here?
+  stream << indentation;
+  emit_visibility (method.get_visibility ());
+  stream << "fn " << method.get_method_name () << '(';
 
   auto &self = method.get_self_param ();
   stream << self.as_string ();
@@ -579,6 +607,7 @@ Dump::visit (UseDeclaration &use_decl)
 void
 Dump::visit (Function &function)
 {
+  emit_visibility (function.get_visibility ());
   stream << "fn " << function.get_function_name ();
 
   if (function.has_generics ())
@@ -674,6 +703,7 @@ void
 Dump::format_function_common (std::unique_ptr<Type> &return_type,
 			      std::unique_ptr<BlockExpr> &block)
 {
+  // FIXME: This should format the `<vis> fn <name> ( [args] )` as well
   if (return_type)
     {
       stream << "-> ";
@@ -714,7 +744,13 @@ void
 Dump::visit (TraitItemMethod &item)
 {
   auto method = item.get_trait_method_decl ();
-  stream << indentation << "fn " << method.get_identifier () << '(';
+
+  // FIXME: Do we really need to dump the indentation here?
+  stream << indentation;
+
+  // FIXME: Can we have visibility here?
+  // emit_visibility (method.get_visibility ());
+  stream << "fn " << method.get_identifier () << '(';
 
   auto &self = method.get_self_param ();
   stream << self.as_string ();
@@ -754,6 +790,8 @@ Dump::visit (Trait &trait)
       stream << "\n" << indentation;
     }
 
+  emit_visibility (trait.get_visibility ());
+
   stream << "trait " << trait.get_identifier ();
 
   // Traits actually have an implicit Self thrown at the start so we must expect
@@ -834,6 +872,8 @@ Dump::visit (ExternalStaticItem &item)
 void
 Dump::visit (ExternalFunctionItem &function)
 {
+  emit_visibility (function.get_visibility ());
+
   stream << "fn " << function.get_identifier () << '(';
 
   for (size_t i = 0; i < function.get_function_params ().size (); i++)
diff --git a/gcc/rust/ast/rust-ast-dump.h b/gcc/rust/ast/rust-ast-dump.h
index a72bd4d1ff5..a5a99f2b03e 100644
--- a/gcc/rust/ast/rust-ast-dump.h
+++ b/gcc/rust/ast/rust-ast-dump.h
@@ -80,8 +80,17 @@ private:
    * Format a function's definition parameter
    */
   void format_function_param (FunctionParam &param);
+
+  /**
+   * Emit an attribute
+   */
   void emit_attrib (const Attribute &attrib);
 
+  /**
+   * Emit an item's visibility
+   */
+  void emit_visibility (const Visibility &vis);
+
   /**
    * Emit an indented string with an optional extra comment
    */