From: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date: Wed, 3 May 2023 13:33:43 +0000 (+0200)
Subject: gccrs: converter: Make converter input immutable
X-Git-Tag: basepoints/gcc-15~2552
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0661bf8c9d432a0c01b2a789569cf64fbffcfaa;p=thirdparty%2Fgcc.git

gccrs: converter: Make converter input immutable

Inputs of the converter are never changed and may thus be qualified as
const.

gcc/rust/ChangeLog:

	* util/rust-token-converter.cc (dispatch_float_literals): Make
	input immutable.
	(dispatch_integer_literals): Likewise.
	(convert): Likewise.
	* util/rust-token-converter.h (convert): Likewise.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
---

diff --git a/gcc/rust/util/rust-token-converter.cc b/gcc/rust/util/rust-token-converter.cc
index 5cc2fbc1db7e..53168b68ad46 100644
--- a/gcc/rust/util/rust-token-converter.cc
+++ b/gcc/rust/util/rust-token-converter.cc
@@ -32,7 +32,8 @@ pop_group (std::vector<ProcMacro::TokenStream> &streams,
 }
 
 static void
-dispatch_float_literals (ProcMacro::TokenStream &ts, const_TokenPtr &token)
+dispatch_float_literals (ProcMacro::TokenStream &ts,
+			 const const_TokenPtr &token)
 {
   std::string::size_type sz;
   auto str = token->as_string ();
@@ -56,7 +57,8 @@ dispatch_float_literals (ProcMacro::TokenStream &ts, const_TokenPtr &token)
 }
 
 static void
-dispatch_integer_literals (ProcMacro::TokenStream &ts, const_TokenPtr &token)
+dispatch_integer_literals (ProcMacro::TokenStream &ts,
+			   const const_TokenPtr &token)
 {
   std::string::size_type sz;
   auto str = token->as_string ();
@@ -123,7 +125,7 @@ dispatch_integer_literals (ProcMacro::TokenStream &ts, const_TokenPtr &token)
 }
 
 ProcMacro::TokenStream
-convert (std::vector<const_TokenPtr> tokens)
+convert (const std::vector<const_TokenPtr> &tokens)
 {
   std::vector<ProcMacro::TokenStream> trees;
   trees.push_back (ProcMacro::TokenStream::make_tokenstream ());
@@ -570,7 +572,7 @@ from_tokenstream (const ProcMacro::TokenStream &ts,
 }
 
 std::vector<const_TokenPtr>
-convert (ProcMacro::TokenStream ts)
+convert (const ProcMacro::TokenStream &ts)
 {
   std::vector<const_TokenPtr> result;
   from_tokenstream (ts, result);
diff --git a/gcc/rust/util/rust-token-converter.h b/gcc/rust/util/rust-token-converter.h
index 2e05d5d123c1..75b3b38f3726 100644
--- a/gcc/rust/util/rust-token-converter.h
+++ b/gcc/rust/util/rust-token-converter.h
@@ -24,10 +24,10 @@
 namespace Rust {
 
 ProcMacro::TokenStream
-convert (std::vector<const_TokenPtr> tokens);
+convert (const std::vector<const_TokenPtr> &tokens);
 
 std::vector<const_TokenPtr>
-convert (ProcMacro::TokenStream ts);
+convert (const ProcMacro::TokenStream &ts);
 
 } // namespace Rust