Standardise numbers in default args

cppwg/info/class_info.py

@@ -189,6 +189,7 @@ def update_from_ns(self, source_ns: "namespace_t") -> None:  # noqa: F821
                 class_decl = typedef_decl.decl_type.declaration
 
                 logger.info(f"Found {class_decl.name} for {class_cpp_name}")
+                class_decl.name = class_cpp_name
 
             self.decls.append(class_decl)
 

cppwg/utils/utils.py

@@ -1,6 +1,8 @@
 """Utility functions for the cppwg package."""
 
+import ast
 import re
+from numbers import Number
 from typing import Any, List, Tuple
 
 from cppwg.utils.constants import CPPWG_ALL_STRING, CPPWG_TRUE_STRINGS
@@ -170,6 +172,40 @@ def read_source_file(
     return source
 
 
+def str_to_num(expr: str) -> Number:
+    """
+    Convert a literal string expression to a number e.g. "(-1)" to -1.
+
+    Parameters
+    ----------
+    expr : str
+        The string expression to convert
+
+    Returns
+    -------
+    Number
+        The converted number, or None if the conversion fails
+    """
+    expr = expr.strip()
+    if expr.isnumeric():
+        return int(expr)
+
+    try:
+        result = float(expr)
+        return result
+    except ValueError:
+        pass
+
+    try:
+        result = ast.literal_eval(expr)
+        if isinstance(result, Number):
+            return result
+    except (ValueError, SyntaxError):
+        pass
+
+    return None
+
+
 def strip_source(
     source: str,
     strip_comments: bool = True,

cppwg/writers/constructor_writer.py

@@ -5,6 +5,7 @@
 
 from pygccxml.declarations import type_traits, type_traits_classes
 
+from cppwg.utils import utils
 from cppwg.writers.base_writer import CppBaseWrapperWriter
 
 
@@ -185,7 +186,11 @@ def generate_wrapper(self) -> str:
                 arg.default_value is None
                 or self.class_info.hierarchy_attribute("exclude_default_args")
             ):
+                # Try to convert "(-1)" to "-1" etc.
                 default_value = str(arg.default_value)
+                num = utils.str_to_num(default_value)
+                if num is not None:
+                    default_value = str(num)
 
                 # Check for template params in default value
                 if self.template_params:

cppwg/writers/free_function_writer.py

@@ -3,6 +3,7 @@
 from typing import Dict, List
 
 from cppwg.info.free_function_info import CppFreeFunctionInfo
+from cppwg.utils import utils
 from cppwg.writers.base_writer import CppBaseWrapperWriter
 
 
@@ -51,7 +52,12 @@ def generate_wrapper(self) -> str:
             for argument in self.free_function_info.decls[0].arguments:
                 default_args += f', py::arg("{argument.name}")'
                 if argument.default_value is not None:
-                    default_args += f" = {argument.default_value}"
+                    # Try to convert "(-1)" to "-1" etc.
+                    default_value = str(argument.default_value)
+                    num = utils.str_to_num(default_value)
+                    if num is not None:
+                        default_value = str(num)
+                    default_args += f" = {default_value}"
 
         # Add the free function wrapper code to the wrapper string
         func_dict = {

cppwg/writers/method_writer.py

@@ -5,6 +5,7 @@
 
 from pygccxml.declarations import type_traits
 
+from cppwg.utils import utils
 from cppwg.writers.base_writer import CppBaseWrapperWriter
 
 
@@ -155,7 +156,11 @@ def generate_wrapper(self) -> str:
                 arg.default_value is None
                 or self.class_info.hierarchy_attribute("exclude_default_args")
             ):
+                # Try to convert "(-1)" to "-1" etc.
                 default_value = str(arg.default_value)
+                num = utils.str_to_num(default_value)
+                if num is not None:
+                    default_value = str(num)
 
                 # Check for template params in default value
                 if self.template_params:

examples/cells/src/cpp/visualization/Scene.hpp

@@ -2,6 +2,7 @@
 #define SCENE_HPP_
 
 #include <vtkAutoInit.h>
+#include <vtkColorTransferFunction.h>
 #include <vtkOpenGLRenderer.h>
 #include <vtkRenderWindow.h>
 #include <vtkSmartPointer.h>
@@ -13,6 +14,7 @@ class Scene
 {
     vtkSmartPointer<vtkRenderer> mpRenderer;
     vtkSmartPointer<vtkRenderWindow> mpRenderWindow;
+    vtkSmartPointer<vtkColorTransferFunction> mpColorTransferFunction;
 
 public:
     Scene();

examples/shapes/wrapper/math_funcs/_pyshapes_math_funcs.main.cppwg.cpp

@@ -8,5 +8,5 @@ namespace py = pybind11;
 
 PYBIND11_MODULE(_pyshapes_math_funcs, m)
 {
-    m.def("add", &add, " ", py::arg("i") = 1., py::arg("j") = 2.);
+    m.def("add", &add, " ", py::arg("i") = 1.0, py::arg("j") = 2.0);
 }

examples/shapes/wrapper/primitives/Cuboid.cppwg.cpp

@@ -14,6 +14,6 @@ PYBIND11_DECLARE_HOLDER_TYPE(T, std::shared_ptr<T>);
 void register_Cuboid_class(py::module &m)
 {
     py::class_<Cuboid, std::shared_ptr<Cuboid>, Shape<3>>(m, "Cuboid")
-        .def(py::init<double, double, double>(), py::arg("width") = 2., py::arg("height") = 1., py::arg("depth") = 1.)
+        .def(py::init<double, double, double>(), py::arg("width") = 2.0, py::arg("height") = 1.0, py::arg("depth") = 1.0)
     ;
 }

examples/shapes/wrapper/primitives/Rectangle.cppwg.cpp

@@ -14,7 +14,7 @@ PYBIND11_DECLARE_HOLDER_TYPE(T, std::shared_ptr<T>);
 void register_Rectangle_class(py::module &m)
 {
     py::class_<Rectangle, std::shared_ptr<Rectangle>, Shape<2>>(m, "Rectangle")
-        .def(py::init<double, double>(), py::arg("width") = 2., py::arg("height") = 1.)
+        .def(py::init<double, double>(), py::arg("width") = 2.0, py::arg("height") = 1.0)
         .def(py::init<::std::vector<std::shared_ptr<Point<2>>> const>(), py::arg("points") = ::std::vector<std::shared_ptr<Point<2>>> {})
     ;
 }