gccrs: mappings: Add MacroInvocation -> MacroRulesDef mappings

gcc/rust/ChangeLog:

	* util/rust-hir-map.h: Add new mappings.
	* util/rust-hir-map.cc (Mappings::insert_macro_invocation): Add insertion
	function into mappings.
	(Mappings::lookup_macro_invocation): Add lookup function for mappings.

2 files changed, 28 insertions, 0 deletions

diff --git a/gcc/rust/util/rust-hir-map.cc b/gcc/rust/util/rust-hir-map.cc
index 8043448..7ea782ed 100644
--- a/gcc/rust/util/rust-hir-map.cc
+++ b/gcc/rust/util/rust-hir-map.cc
@@ -867,6 +867,28 @@ Mappings::lookup_macro_def (NodeId id, AST::MacroRulesDefinition **def)
 }
 
 void
+Mappings::insert_macro_invocation (AST::MacroInvocation &invoc,
+				   AST::MacroRulesDefinition *def)
+{
+  auto it = macroInvocations.find (invoc.get_macro_node_id ());
+  rust_assert (it == macroInvocations.end ());
+
+  macroInvocations[invoc.get_macro_node_id ()] = def;
+}
+
+bool
+Mappings::lookup_macro_invocation (AST::MacroInvocation &invoc,
+				   AST::MacroRulesDefinition **def)
+{
+  auto it = macroInvocations.find (invoc.get_macro_node_id ());
+  if (it == macroInvocations.end ())
+    return false;
+
+  *def = it->second;
+  return true;
+}
+
+void
 Mappings::insert_visibility (NodeId id, Privacy::ModuleVisibility visibility)
 {
   visibility_map.insert ({id, visibility});
diff --git a/gcc/rust/util/rust-hir-map.h b/gcc/rust/util/rust-hir-map.h
index 474bd5f..addd9ef 100644
--- a/gcc/rust/util/rust-hir-map.h
+++ b/gcc/rust/util/rust-hir-map.h
@@ -269,6 +269,11 @@ public:
 
   bool lookup_macro_def (NodeId id, AST::MacroRulesDefinition **def);
 
+  void insert_macro_invocation (AST::MacroInvocation &invoc,
+				AST::MacroRulesDefinition *def);
+  bool lookup_macro_invocation (AST::MacroInvocation &invoc,
+				AST::MacroRulesDefinition **def);
+
   void insert_visibility (NodeId id, Privacy::ModuleVisibility visibility);
   bool lookup_visibility (NodeId id, Privacy::ModuleVisibility &def);
 
@@ -334,6 +339,7 @@ private:
 
   // macros
   std::map<NodeId, AST::MacroRulesDefinition *> macroMappings;
+  std::map<NodeId, AST::MacroRulesDefinition *> macroInvocations;
 
   // crate names
   std::map<CrateNum, std::string> crate_names;