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* [gcc/devel/rust/master] rust/backend: scan for any deprecated function calls ...
@ 2022-06-30 18:50 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2022-06-30 18:50 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:649d3c45afa9c65cad99c8d195e342b3c8bea43c
commit 649d3c45afa9c65cad99c8d195e342b3c8bea43c
Author: liushuyu <liushuyu011@gmail.com>
Date: Sat Jun 11 20:02:54 2022 -0600
rust/backend: scan for any deprecated function calls ...
... and emit warnings using GCC's own deprecation warning system
Diff:
---
gcc/rust/backend/rust-compile-base.cc | 9 +++++++--
gcc/rust/rust-gcc.cc | 10 ++++++++++
2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/gcc/rust/backend/rust-compile-base.cc b/gcc/rust/backend/rust-compile-base.cc
index 335a6d411a5..066ef43ca23 100644
--- a/gcc/rust/backend/rust-compile-base.cc
+++ b/gcc/rust/backend/rust-compile-base.cc
@@ -209,8 +209,13 @@ HIRCompileBase::handle_deprecated_attribute_on_fndecl (
}
}
- DECL_ATTRIBUTES (fndecl) = tree_cons (get_identifier ("deprecated"), value,
- DECL_ATTRIBUTES (fndecl));
+ if (value)
+ {
+ tree attr_list = build_tree_list (NULL_TREE, value);
+ DECL_ATTRIBUTES (fndecl)
+ = tree_cons (get_identifier ("deprecated"), attr_list,
+ DECL_ATTRIBUTES (fndecl));
+ }
}
void
diff --git a/gcc/rust/rust-gcc.cc b/gcc/rust/rust-gcc.cc
index 445cb0da876..4fea6fbd7fc 100644
--- a/gcc/rust/rust-gcc.cc
+++ b/gcc/rust/rust-gcc.cc
@@ -51,6 +51,8 @@
#include "rust-backend.h"
#include "rust-object-export.h"
+#include "backend/rust-tree.h"
+
// TODO: this will have to be significantly modified to work with Rust
// Bvariable is a bit more complicated, because of zero-sized types.
@@ -1852,6 +1854,14 @@ Gcc_backend::call_expression (tree fn, const std::vector<tree> &fn_args,
excess_type != NULL_TREE ? excess_type : rettype,
fn, nargs, args);
+ // check for deprecated function usage
+ if (fndecl && TREE_DEPRECATED (fndecl))
+ {
+ // set up the call-site information for `warn_deprecated_use`
+ input_location = location.gcc_location ();
+ warn_deprecated_use (fndecl, NULL_TREE);
+ }
+
if (chain_expr)
CALL_EXPR_STATIC_CHAIN (ret) = chain_expr;
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