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From: Thomas Schwinge <tschwinge@gcc.gnu.org>
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Subject: [gcc/devel/rust/master] builtins: Add file!() macro
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X-Git-Author: Arthur Cohen <arthur.cohen@embecosm.com>
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https://gcc.gnu.org/g:986b8c3c6024409beedc662fbe08345450a60cc2

commit 986b8c3c6024409beedc662fbe08345450a60cc2
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Wed Feb 23 10:48:49 2022 +0100

    builtins: Add file!() macro

Diff:
---
 gcc/rust/expand/rust-macro-builtins.cc | 15 +++++++++++++++
 gcc/rust/expand/rust-macro-builtins.h  |  3 +++
 gcc/rust/util/rust-hir-map.cc          |  1 +
 3 files changed, 19 insertions(+)

diff --git a/gcc/rust/expand/rust-macro-builtins.cc b/gcc/rust/expand/rust-macro-builtins.cc
index b7bbd32c322..2678fe43a1e 100644
--- a/gcc/rust/expand/rust-macro-builtins.cc
+++ b/gcc/rust/expand/rust-macro-builtins.cc
@@ -18,6 +18,8 @@
 
 #include "rust-macro-builtins.h"
 #include "rust-diagnostics.h"
+#include "rust-expr.h"
+#include "rust-session-manager.h"
 
 namespace Rust {
 AST::ASTFragment
@@ -27,4 +29,17 @@ MacroBuiltin::assert (Location invoc_locus, AST::MacroInvocData &invoc)
 
   return AST::ASTFragment::create_empty ();
 }
+
+AST::ASTFragment
+MacroBuiltin::file (Location invoc_locus, AST::MacroInvocData &invoc)
+{
+  auto current_file
+    = Session::get_instance ().linemap->location_file (invoc_locus);
+  auto file_str = AST::SingleASTNode (std::unique_ptr<AST::Expr> (
+    new AST::LiteralExpr (current_file, AST::Literal::STRING,
+			  PrimitiveCoreType::CORETYPE_STR,
+			  std::vector<AST::Attribute> (), invoc_locus)));
+
+  return AST::ASTFragment ({file_str});
+}
 } // namespace Rust
diff --git a/gcc/rust/expand/rust-macro-builtins.h b/gcc/rust/expand/rust-macro-builtins.h
index f279d390ffe..ee42fe1dcc6 100644
--- a/gcc/rust/expand/rust-macro-builtins.h
+++ b/gcc/rust/expand/rust-macro-builtins.h
@@ -28,6 +28,9 @@ class MacroBuiltin
 public:
   static AST::ASTFragment assert (Location invoc_locus,
 				  AST::MacroInvocData &invoc);
+
+  static AST::ASTFragment file (Location invoc_locus,
+				AST::MacroInvocData &invoc);
 };
 } // namespace Rust
 
diff --git a/gcc/rust/util/rust-hir-map.cc b/gcc/rust/util/rust-hir-map.cc
index 1c0e8fcb9ca..d154a8aab2b 100644
--- a/gcc/rust/util/rust-hir-map.cc
+++ b/gcc/rust/util/rust-hir-map.cc
@@ -746,6 +746,7 @@ Mappings::insert_macro_def (AST::MacroRulesDefinition *macro)
 				 Location, AST::MacroInvocData &)>>
     builtin_macros = {
       {"assert", MacroBuiltin::assert},
+      {"file", MacroBuiltin::file},
     };
 
   auto builtin = builtin_macros.find (macro->get_rule_name ());