From 003ab0c7de83498070d2c7c4efad3f8f5fd1414f Mon Sep 17 00:00:00 2001
From: Ralf Stubner <ralf.stubner@gmail.com>
Date: Fri, 6 Sep 2024 20:40:14 +0200
Subject: [PATCH] Add support for debugging C++ from Positron

See https://github.com/posit-dev/positron/discussions/4534
On Linux I also needed to run
sudo sysctl -w kernel.yama.ptrace_scope=0
---
 .Rbuildignore       |  2 ++
 .vscode/launch.json | 28 ++++++++++++++++++++++++++++
 debug/debug.R       |  7 +++++++
 3 files changed, 37 insertions(+)
 create mode 100644 .vscode/launch.json
 create mode 100644 debug/debug.R

diff --git a/.Rbuildignore b/.Rbuildignore
index 3b7432e..653b8ab 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -21,3 +21,5 @@
 ^\.cache$
 ^compile_commands\.json$
 ^touchstone$
+^\.vscode$
+^debug$
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..fefcb14
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,28 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "(lldb) Launch R",
+      "type": "lldb",
+      "request": "launch",
+      "program": "/Library/Frameworks/R.framework/Resources/bin/exec/R",
+      "args": [
+        "--vanilla",
+        "-e",
+        "source('debug/debug.R')"
+      ],
+      "env": {
+        "R_HOME" : "/Library/Frameworks/R.framework/Resources"
+      },
+      "terminal": "console",
+      "stopOnEntry": false
+    },
+    {
+      "name": "(lldb) Attach to R",
+      "type": "lldb",
+      "request": "attach",
+      "pid": "${command:pickMyProcess}",
+      "stopOnEntry": false
+    }
+  ]
+}
diff --git a/debug/debug.R b/debug/debug.R
new file mode 100644
index 0000000..ee74905
--- /dev/null
+++ b/debug/debug.R
@@ -0,0 +1,7 @@
+devtools::clean_dll()
+devtools::load_all()
+Sys.getpid()
+
+dqrng::dqrunif(10)
+
+dqrng::dqRNGkind("pcg64")