bindings: add new C++ function attribute accessors

Add methods to index Cursor to see if a cxx method is pure_virtual,
virtual or const methods.

Patch by Jonathan B Coe!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@250008 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 67 insertions, 0 deletions

diff --git a/bindings/python/clang/cindex.py b/bindings/python/clang/cindex.py
index 6a928c3f1d..62b8596dea 100644
--- a/bindings/python/clang/cindex.py
+++ b/bindings/python/clang/cindex.py
@@ -1164,12 +1164,30 @@ class Cursor(Structure):
         """
         return conf.lib.clang_isCursorDefinition(self)
 
+    def is_const_method(self):
+        """Returns True if the cursor refers to a C++ member function or member
+        function template that is declared 'const'.
+        """
+        return conf.lib.clang_CXXMethod_isConst(self)
+
+    def is_pure_virtual_method(self):
+        """Returns True if the cursor refers to a C++ member function or member
+        function template that is declared pure virtual.
+        """
+        return conf.lib.clang_CXXMethod_isPureVirtual(self)
+
     def is_static_method(self):
         """Returns True if the cursor refers to a C++ member function or member
         function template that is declared 'static'.
         """
         return conf.lib.clang_CXXMethod_isStatic(self)
 
+    def is_virtual_method(self):
+        """Returns True if the cursor refers to a C++ member function or member
+        function template that is declared 'virtual'.
+        """
+        return conf.lib.clang_CXXMethod_isVirtual(self)
+
     def get_definition(self):
         """
         If the cursor is a reference to a declaration or a declaration of
@@ -2879,6 +2897,10 @@ functionList = [
    [Index, c_char_p],
    c_object_p),
 
+  ("clang_CXXMethod_isConst",
+   [Cursor],
+   bool),
+
   ("clang_CXXMethod_isPureVirtual",
    [Cursor],
    bool),
diff --git a/bindings/python/tests/cindex/test_cursor.py b/bindings/python/tests/cindex/test_cursor.py
index a5224aafab..68fc8fa4ac 100644
--- a/bindings/python/tests/cindex/test_cursor.py
+++ b/bindings/python/tests/cindex/test_cursor.py
@@ -97,6 +97,21 @@ def test_canonical():
     assert len(cursors) == 3
     assert cursors[1].canonical == cursors[2].canonical
 
+def test_is_const_method():
+    """Ensure Cursor.is_const_method works."""
+    source = 'class X { void foo() const; void bar(); };'
+    tu = get_tu(source, lang='cpp')
+
+    cls = get_cursor(tu, 'X')
+    foo = get_cursor(tu, 'foo')
+    bar = get_cursor(tu, 'bar')
+    assert cls is not None
+    assert foo is not None
+    assert bar is not None
+
+    assert foo.is_const_method()
+    assert not bar.is_const_method()
+
 def test_is_static_method():
     """Ensure Cursor.is_static_method works."""
 
@@ -113,6 +128,36 @@ def test_is_static_method():
     assert foo.is_static_method()
     assert not bar.is_static_method()
 
+def test_is_pure_virtual_method():
+    """Ensure Cursor.is_pure_virtual_method works."""
+    source = 'class X { virtual void foo() = 0; virtual void bar(); };'
+    tu = get_tu(source, lang='cpp')
+
+    cls = get_cursor(tu, 'X')
+    foo = get_cursor(tu, 'foo')
+    bar = get_cursor(tu, 'bar')
+    assert cls is not None
+    assert foo is not None
+    assert bar is not None
+
+    assert foo.is_pure_virtual_method()
+    assert not bar.is_pure_virtual_method()
+
+def test_is_virtual_method():
+    """Ensure Cursor.is_virtual_method works."""
+    source = 'class X { virtual void foo(); void bar(); };'
+    tu = get_tu(source, lang='cpp')
+
+    cls = get_cursor(tu, 'X')
+    foo = get_cursor(tu, 'foo')
+    bar = get_cursor(tu, 'bar')
+    assert cls is not None
+    assert foo is not None
+    assert bar is not None
+
+    assert foo.is_virtual_method()
+    assert not bar.is_virtual_method()
+
 def test_underlying_type():
     tu = get_tu('typedef int foo;')
     typedef = get_cursor(tu, 'foo')