refactor: major modulerization

CMakeLists.txt

@@ -14,9 +14,27 @@ project(
 find_package(Python REQUIRED COMPONENTS Interpreter Development.Module)
 find_package(pybind11 CONFIG REQUIRED)
 
-# Add a library using FindPython's tooling (pybind11 also provides a helper like
-# this)
-python_add_library(_core MODULE cpp_src/jsonparser.cpp WITH_SOABI)
+# Define source files for the streaming JSON parser
+set(PARSER_SOURCES
+  cpp_src/jsonparser.cpp
+)
+
+# Define header files (for IDE integration)
+set(PARSER_HEADERS
+  cpp_src/jsonparser.h
+)
+
+# Add a library using FindPython's tooling
+python_add_library(_core MODULE 
+  cpp_src/bindings.cpp
+  ${PARSER_SOURCES}
+  WITH_SOABI
+)
+
+# Make sure the include directory is in the include path
+target_include_directories(_core PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/cpp_src)
+
+# Link against pybind11
 target_link_libraries(_core PRIVATE pybind11::headers)
 
 # This is passing in the version as a define just as an example

cpp_src/bindings.cpp

@@ -0,0 +1,33 @@
+
+/**
+ * Python bindings for the streaming JSON parser
+ */
+
+#include "jsonparser.h"
+
+#include <string>
+#include <pybind11/pybind11.h>
+#include <pybind11/stl.h>
+
+
+namespace py = pybind11;
+
+// macro defined in pybind11.h (common.h)
+PYBIND11_MODULE(_core, m) {
+    m.doc() = "C++ streaming JSON parser with Python bindings";
+
+    // Expose the StreamJsonParser class along with its
+    // constructor and two functions. 
+    // Note that we use getPython for get to return a py::object
+    py::class_<StreamingJsonParser>(m, "StreamingJsonParser")
+        .def(py::init<bool>(), py::arg("strict_mode") = false)
+        .def("consume", &StreamingJsonParser::consume)
+        .def("get", &StreamingJsonParser::getPython);
+
+    // Expose extra function for parsing without explictly creating obj. 
+    m.def("parse_json", [](const std::string& json_str, bool strict_mode = false) {
+            StreamingJsonParser parser(strict_mode);
+            parser.consume(json_str);
+            return parser.getPython();
+        }, py::arg("json_str"), py::arg("strict_mode") = false);
+}