Merge pull request #6421 from augusto2112/test-nested-interop

[lldb] Add test for nested C++ classes displayed in Swift via interop

Author: augusto2112

lldb/test/API/lang/swift/cxx_interop/forward/nested-classes/Makefile

@@ -0,0 +1,4 @@
+SWIFT_SOURCES := main.swift
+SWIFT_CXX_INTEROP := 1
+SWIFTFLAGS_EXTRAS = -Xcc -I$(SRCDIR) 
+include Makefile.rules

lldb/test/API/lang/swift/cxx_interop/forward/nested-classes/TestNestedClasses.py

@@ -0,0 +1,25 @@
+
+"""
+Test that a C++ class is visible in Swift.
+"""
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+
+
+class TestNestedClasses(TestBase):
+
+    @skipIf(setting=('symbols.use-swift-clangimporter', 'false'))
+    @swiftTest
+    def test(self):
+        self.build()
+        self.runCmd('setting set target.experimental.swift-enable-cxx-interop true')
+        _, _, _, _= lldbutil.run_to_source_breakpoint(
+            self, 'Set breakpoint here', lldb.SBFileSpec('main.swift'))
+
+        self.expect('v nested', substrs=['CxxClass::NestedClass', 'b = 20'])
+        self.expect('expr nested', substrs=['CxxClass::NestedClass', 'b = 20'])
+
+        self.expect('v nestedSubclass', substrs=['CxxClass::NestedSubclass', 
+            'SuperClass = (a = 10)', 'c = 30'])
+        self.expect('expr nestedSubclass', substrs=['CxxClass::NestedSubclass', 
+            'SuperClass = (a = 10)', 'c = 30'])

lldb/test/API/lang/swift/cxx_interop/forward/nested-classes/main.swift

@@ -0,0 +1,9 @@
+import ReturnsClass
+
+func main() {
+  let nested = CxxClass.NestedClass()
+  let nestedSubclass = CxxClass.NestedSubclass()
+  print(1) // Set breakpoint here
+}
+main()
+

lldb/test/API/lang/swift/cxx_interop/forward/nested-classes/module.modulemap

@@ -0,0 +1,5 @@
+module ReturnsClass {
+  header "returns-class.h"
+  requires cplusplus
+}
+

lldb/test/API/lang/swift/cxx_interop/forward/nested-classes/returns-class.h

@@ -0,0 +1,16 @@
+
+struct SuperClass {
+  long long a = 10;
+};
+
+struct CxxClass {
+  struct NestedClass {
+    long long b = 20;
+  };
+
+  struct NestedSubclass: SuperClass {
+    long long c = 30;
+  };
+
+};
+