[XRay][clang] Support capturing the implicit `this` argument to C++ class member functions
Summary:
Before this change, we couldn't capture the `this` pointer that's
implicitly the first argument of class member functions. There are some
interesting things we can do with capturing even just this single
argument for zero-argument member functions.
Reviewers: rnk, pelikan
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D34052
llvm-svn: 305544
diff --git a/clang/test/Sema/xray-log-args-class.cpp b/clang/test/Sema/xray-log-args-class.cpp
new file mode 100644
index 0000000..10da93f
--- /dev/null
+++ b/clang/test/Sema/xray-log-args-class.cpp
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 %s -verify -fsyntax-only -std=c++11 -x c++
+
+class Class {
+ [[clang::xray_always_instrument, clang::xray_log_args(1)]] void Method();
+ [[clang::xray_log_args(-1)]] void Invalid(); // expected-error {{'xray_log_args' attribute parameter 1 is out of bounds}}
+ [[clang::xray_log_args("invalid")]] void InvalidStringArg(); // expected-error {{'xray_log_args'}}
+};