Add the ability for an SBValue to create a persisted version of itself.

Such a persisted version is equivalent to evaluating the value via the expression evaluator, and holding on to the $n result of the expression, except this API can be used on SBValues that do not obviously come from an expression (e.g. are the result of a memory lookup)

Expose this via SBValue::Persist() in our public API layer, and ValueObject::Persist() in the lldb_private layer

Includes testcase

Fixes rdar://19136664

llvm-svn: 223711

1 files changed, 14 insertions, 0 deletions

diff --git a/lldb/test/python_api/sbvalue_persist/main.cpp b/lldb/test/python_api/sbvalue_persist/main.cpp
new file mode 100644
index 00000000000..650d87acd6e
--- /dev/null
+++ b/lldb/test/python_api/sbvalue_persist/main.cpp
@@ -0,0 +1,14 @@
+#include <vector>
+#include <string>
+
+void f() {}
+
+int main() {
+    int foo = 10;
+    int *bar = new int(4);
+    std::string baz = "85";
+    
+    f(); // break here
+    f(); // break here
+    return 0;
+}
\ No newline at end of file