Merge pull request #74 from robotpy/constexpr-fn

support constexpr functions

Author: virtuald

CppHeaderParser/CppHeaderParser.py

@@ -111,7 +111,6 @@ def debug_print(fmt, *args):
         args = (inspect.currentframe().f_back.f_lineno,) + args
         print(fmt % args)
 
-
 else:
 
     debug_caller_lineno = None
@@ -128,7 +127,6 @@ def trace_print(*args):
             sys.stdout.write(" %s" % a)
         sys.stdout.write("\n")
 
-
 else:
 
     def trace_print(*args):
@@ -1470,7 +1468,7 @@ class Resolver(object):
     C_MODIFIERS = "* & const constexpr static mutable".split()
     C_MODIFIERS = set(C_MODIFIERS)
 
-    C_KEYWORDS = "extern virtual static explicit inline friend".split()
+    C_KEYWORDS = "extern virtual static explicit inline friend constexpr".split()
     C_KEYWORDS = set(C_KEYWORDS)
 
     SubTypedefs = {}  # TODO deprecate?

test/test_CppHeaderParser.py

@@ -2999,6 +2999,21 @@ def test_fn(self):
         self.assertEqual(p["defaultValue"], "0.02")
 
 
+class ConstExprFn_TestCase(unittest.TestCase):
+    def setUp(self):
+        self.cppHeader = CppHeaderParser.CppHeader(
+            """
+constexpr int overloaded_constexpr(int a, int b, int c) { return a + b + c; }
+""",
+            "string",
+        )
+
+    def test_fn(self):
+        m = self.cppHeader.functions[0]
+        self.assertEqual(m["constexpr"], True)
+        self.assertEqual(m["rtnType"], "int")
+
+
 class DefaultEnum_TestCase(unittest.TestCase):
     def setUp(self):
         self.cppHeader = CppHeaderParser.CppHeader(