1615 lines
61 KiB
Python
1615 lines
61 KiB
Python
#!/usr/bin/env python
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import json
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import re
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import shutil
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from pathlib import Path
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def print_file_list(api_filepath, output_dir, headers=False, sources=False):
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api = {}
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end = ";"
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with open(api_filepath) as api_file:
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api = json.load(api_file)
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include_gen_folder = Path(output_dir) / "gen" / "include" / "godot_cpp"
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source_gen_folder = Path(output_dir) / "gen" / "src"
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for builtin_class in api["builtin_classes"]:
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if is_pod_type(builtin_class["name"]):
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continue
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header_filename = include_gen_folder / "variant" / (camel_to_snake(builtin_class["name"]) + ".hpp")
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source_filename = source_gen_folder / "variant" / (camel_to_snake(builtin_class["name"]) + ".cpp")
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if headers:
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print(str(header_filename.as_posix()), end=end)
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if sources:
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print(str(source_filename.as_posix()), end=end)
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for engine_class in api["classes"]:
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header_filename = include_gen_folder / "classes" / (camel_to_snake(engine_class["name"]) + ".hpp")
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source_filename = source_gen_folder / "classes" / (camel_to_snake(engine_class["name"]) + ".cpp")
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if headers:
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print(str(header_filename.as_posix()), end=end)
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if sources:
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print(str(source_filename.as_posix()), end=end)
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utility_functions_header_path = include_gen_folder / "variant" / "utility_functions.hpp"
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utility_functions_source_path = source_gen_folder / "variant" / "utility_functions.cpp"
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global_constants_header_path = include_gen_folder / "classes" / "global_constants.hpp"
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if headers:
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print(str(utility_functions_header_path.as_posix()), end=end)
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print(str(global_constants_header_path.as_posix()), end=end)
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if sources:
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print(str(utility_functions_source_path.as_posix()), end=end)
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def generate_bindings(api_filepath, use_template_get_node, output_dir="."):
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api = None
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target_dir = Path(output_dir) / "gen"
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with open(api_filepath) as api_file:
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api = json.load(api_file)
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shutil.rmtree(target_dir, ignore_errors=True)
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target_dir.mkdir(parents=True)
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generate_global_constants(api, target_dir)
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generate_builtin_bindings(api, target_dir, "float_64")
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generate_engine_classes_bindings(api, target_dir, use_template_get_node)
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generate_utility_functions(api, target_dir)
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builtin_classes = []
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# Key is class name, value is boolean where True means the class is refcounted.
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engine_classes = {}
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def generate_builtin_bindings(api, output_dir, build_config):
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global builtin_classes
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include_gen_folder = Path(output_dir) / "include" / "godot_cpp" / "variant"
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source_gen_folder = Path(output_dir) / "src" / "variant"
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include_gen_folder.mkdir(parents=True, exist_ok=True)
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source_gen_folder.mkdir(parents=True, exist_ok=True)
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# Store types beforehand.
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for builtin_api in api["builtin_classes"]:
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if is_pod_type(builtin_api["name"]):
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continue
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builtin_classes.append(builtin_api["name"])
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builtin_sizes = {}
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for size_list in api["builtin_class_sizes"]:
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if size_list["build_configuration"] == build_config:
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for size in size_list["sizes"]:
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builtin_sizes[size["name"]] = size["size"]
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break
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# Create a file for Variant size, since that class isn't generated.
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variant_size_filename = include_gen_folder / "variant_size.hpp"
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with variant_size_filename.open("+w") as variant_size_file:
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variant_size_source = []
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add_header("variant_size.hpp", variant_size_source)
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header_guard = "GODOT_CPP_VARIANT_SIZE_HPP"
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variant_size_source.append(f"#ifndef {header_guard}")
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variant_size_source.append(f"#define {header_guard}")
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variant_size_source.append(f'#define GODOT_CPP_VARIANT_SIZE {builtin_sizes["Variant"]}')
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variant_size_source.append(f"#endif // ! {header_guard}")
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variant_size_file.write("\n".join(variant_size_source))
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for builtin_api in api["builtin_classes"]:
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if is_pod_type(builtin_api["name"]):
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continue
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size = builtin_sizes[builtin_api["name"]]
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header_filename = include_gen_folder / (camel_to_snake(builtin_api["name"]) + ".hpp")
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source_filename = source_gen_folder / (camel_to_snake(builtin_api["name"]) + ".cpp")
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# Check used classes for header include
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used_classes = set()
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fully_used_classes = set()
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class_name = builtin_api["name"]
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if "constructors" in builtin_api:
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for constructor in builtin_api["constructors"]:
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if "arguments" in constructor:
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for argument in constructor["arguments"]:
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if is_included(argument["type"], class_name):
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if "default_value" in argument and argument["type"] != "Variant":
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fully_used_classes.add(argument["type"])
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else:
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used_classes.add(argument["type"])
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if "methods" in builtin_api:
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for method in builtin_api["methods"]:
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if "arguments" in method:
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for argument in method["arguments"]:
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if is_included(argument["type"], class_name):
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if "default_value" in argument and argument["type"] != "Variant":
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fully_used_classes.add(argument["type"])
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else:
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used_classes.add(argument["type"])
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if "return_type" in method:
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if is_included(method["return_type"], class_name):
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used_classes.add(method["return_type"])
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if "members" in builtin_api:
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for member in builtin_api["members"]:
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if is_included(member["type"], class_name):
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used_classes.add(member["type"])
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if "indexing_return_type" in builtin_api:
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if is_included(builtin_api["indexing_return_type"], class_name):
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used_classes.add(builtin_api["indexing_return_type"])
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if "operators" in builtin_api:
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for operator in builtin_api["operators"]:
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if "right_type" in operator:
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if is_included(operator["right_type"], class_name):
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used_classes.add(operator["right_type"])
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for type_name in fully_used_classes:
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if type_name in used_classes:
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used_classes.remove(type_name)
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with header_filename.open("w+") as header_file:
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header_file.write(generate_builtin_class_header(builtin_api, size, used_classes, fully_used_classes))
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with source_filename.open("w+") as source_file:
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source_file.write(generate_builtin_class_source(builtin_api, size, used_classes, fully_used_classes))
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# Create a header with all builtin types for convenience.
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builtin_header_filename = include_gen_folder / "builtin_types.hpp"
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with builtin_header_filename.open("w+") as builtin_header_file:
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builtin_header = []
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add_header("builtin_types.hpp", builtin_header)
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builtin_header.append("#ifndef GODOT_CPP_BUILTIN_TYPES_HPP")
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builtin_header.append("#define GODOT_CPP_BUILTIN_TYPES_HPP")
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builtin_header.append("")
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for builtin in builtin_classes:
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builtin_header.append(f"#include <godot_cpp/variant/{camel_to_snake(builtin)}.hpp>")
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builtin_header.append("")
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builtin_header.append("#endif // ! GODOT_CPP_BUILTIN_TYPES_HPP")
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builtin_header_file.write("\n".join(builtin_header))
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def generate_builtin_class_header(builtin_api, size, used_classes, fully_used_classes):
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result = []
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class_name = builtin_api["name"]
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snake_class_name = camel_to_snake(class_name).upper()
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header_guard = f"GODOT_CPP_{snake_class_name}_HPP"
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add_header(f"{snake_class_name.lower()}.hpp", result)
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result.append(f"#ifndef {header_guard}")
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result.append(f"#define {header_guard}")
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result.append("")
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result.append("#include <godot_cpp/core/defs.hpp>")
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result.append("")
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# Special cases.
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if class_name == "String":
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result.append("#include <godot_cpp/variant/char_string.hpp>")
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for include in fully_used_classes:
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result.append(f"#include <godot_cpp/{get_include_path(include)}>")
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if len(fully_used_classes) > 0:
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result.append("")
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result.append(f"#include <godot/gdnative_interface.h>")
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result.append("")
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result.append("namespace godot {")
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result.append("")
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for type_name in used_classes:
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result.append(f"class {type_name};")
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if len(used_classes) > 0:
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result.append("")
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result.append(f"class {class_name} {{")
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result.append(f"\tstatic constexpr size_t {snake_class_name}_SIZE = {size};")
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result.append(f"\tuint8_t opaque[{snake_class_name}_SIZE] {{ 0 }};")
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result.append(
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f"\t_FORCE_INLINE_ GDNativeTypePtr ptr() const {{ return const_cast<uint8_t (*)[{snake_class_name}_SIZE]>(&opaque); }}"
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)
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result.append("")
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result.append("\tfriend class Variant;")
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result.append("")
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result.append("\tstatic struct _MethodBindings {")
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if "constructors" in builtin_api:
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for constructor in builtin_api["constructors"]:
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result.append(f'\t\tGDNativePtrConstructor constructor_{constructor["index"]};')
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if builtin_api["has_destructor"]:
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result.append("\t\tGDNativePtrDestructor destructor;")
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if "methods" in builtin_api:
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for method in builtin_api["methods"]:
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result.append(f'\t\tGDNativePtrBuiltInMethod method_{method["name"]};')
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if "members" in builtin_api:
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for member in builtin_api["members"]:
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result.append(f'\t\tGDNativePtrSetter member_{member["name"]}_setter;')
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result.append(f'\t\tGDNativePtrGetter member_{member["name"]}_getter;')
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if "indexing_return_type" in builtin_api:
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result.append(f"\t\tGDNativePtrIndexedSetter indexed_setter;")
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result.append(f"\t\tGDNativePtrIndexedGetter indexed_getter;")
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if "is_keyed" in builtin_api and builtin_api["is_keyed"]:
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result.append(f"\t\tGDNativePtrKeyedSetter keyed_setter;")
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result.append(f"\t\tGDNativePtrKeyedGetter keyed_getter;")
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result.append(f"\t\tGDNativePtrKeyedChecker keyed_checker;")
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if "operators" in builtin_api:
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for operator in builtin_api["operators"]:
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if "right_type" in operator:
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result.append(
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f'\t\tGDNativePtrOperatorEvaluator operator_{get_operator_id_name(operator["name"])}_{operator["right_type"]};'
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)
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else:
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result.append(f'\t\tGDNativePtrOperatorEvaluator operator_{get_operator_id_name(operator["name"])};')
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result.append("\t} _method_bindings;")
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result.append("")
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result.append("\tstatic void init_bindings();")
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result.append("")
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result.append("public:")
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if "constructors" in builtin_api:
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for constructor in builtin_api["constructors"]:
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method_signature = f"\t{class_name}("
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if "arguments" in constructor:
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method_signature += make_function_parameters(
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constructor["arguments"], include_default=True, for_builtin=True
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)
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method_signature += ");"
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result.append(method_signature)
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# Special cases.
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if class_name == "String" or class_name == "StringName" or class_name == "NodePath":
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result.append(f"\t{class_name}(const char *from);")
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result.append(f"\t{class_name}(const wchar_t *from);")
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result.append(f"\t{class_name}(const char16_t *from);")
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result.append(f"\t{class_name}(const char32_t *from);")
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if "constants" in builtin_api:
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axis_constants_count = 0
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for constant in builtin_api["constants"]:
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# Special case: Vector3.Axis is the only enum in the bindings.
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# It's technically not supported by Variant but works for direct access.
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if class_name == "Vector3" and constant["name"].startswith("AXIS"):
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if axis_constants_count == 0:
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result.append("\tenum Axis {")
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result.append(f'\t\t{constant["name"]} = {constant["value"]},')
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axis_constants_count += 1
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if axis_constants_count == 3:
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result.append("\t};")
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else:
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result.append(f'\tstatic const {correct_type(constant["type"])} {constant["name"]};')
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if builtin_api["has_destructor"]:
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result.append(f"\t~{class_name}();")
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method_list = []
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if "methods" in builtin_api:
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for method in builtin_api["methods"]:
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method_list.append(method["name"])
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vararg = method["is_vararg"]
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if vararg:
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result.append("\ttemplate<class... Args>")
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method_signature = "\t"
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if "is_static" in method and method["is_static"]:
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method_signature += "static "
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if "return_type" in method:
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method_signature += f'{correct_type(method["return_type"])} '
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else:
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method_signature += "void "
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method_signature += f'{method["name"]}('
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method_arguments = []
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if "arguments" in method:
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method_arguments = method["arguments"]
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method_signature += make_function_parameters(
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method_arguments, include_default=True, for_builtin=True, is_vararg=vararg
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)
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method_signature += ")"
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if method["is_const"]:
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method_signature += " const"
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method_signature += ";"
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result.append(method_signature)
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# Special cases.
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if class_name == "String":
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result.append("\tCharString utf8() const;")
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result.append("\tCharString ascii() const;")
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result.append("\tChar16String utf16() const;")
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result.append("\tChar32String utf32() const;")
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result.append("\tCharWideString wide_string() const;")
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if "members" in builtin_api:
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for member in builtin_api["members"]:
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if f'get_{member["name"]}' not in method_list:
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result.append(f'\t{correct_type(member["type"])} get_{member["name"]}() const;')
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if f'set_{member["name"]}' not in method_list:
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result.append(f'\tvoid set_{member["name"]}({type_for_parameter(member["type"])}value);')
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if "operators" in builtin_api:
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for operator in builtin_api["operators"]:
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if operator["name"] not in ["in", "xor"]:
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if "right_type" in operator:
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result.append(
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f'\t{correct_type(operator["return_type"])} operator{operator["name"]}({type_for_parameter(operator["right_type"])}other) const;'
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)
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else:
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result.append(
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f'\t{correct_type(operator["return_type"])} operator{operator["name"].replace("unary", "")}() const;'
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)
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# Special cases.
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if class_name == "String":
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result.append("String &operator=(const char *p_str);")
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result.append("String &operator=(const wchar_t *p_str);")
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result.append("String &operator=(const char16_t *p_str);")
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result.append("String &operator=(const char32_t *p_str);")
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result.append("bool operator==(const char *p_str) const;")
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result.append("bool operator==(const wchar_t *p_str) const;")
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result.append("bool operator==(const char16_t *p_str) const;")
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result.append("bool operator==(const char32_t *p_str) const;")
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result.append("bool operator!=(const char *p_str) const;")
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result.append("bool operator!=(const wchar_t *p_str) const;")
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result.append("bool operator!=(const char16_t *p_str) const;")
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result.append("bool operator!=(const char32_t *p_str) const;")
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result.append("};")
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if class_name == "String":
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result.append("")
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result.append("bool operator==(const char *p_chr, const String &p_str);")
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result.append("bool operator==(const wchar_t *p_chr, const String &p_str);")
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result.append("bool operator==(const char16_t *p_chr, const String &p_str);")
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result.append("bool operator==(const char32_t *p_chr, const String &p_str);")
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result.append("bool operator!=(const char *p_chr, const String &p_str);")
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result.append("bool operator!=(const wchar_t *p_chr, const String &p_str);")
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result.append("bool operator!=(const char16_t *p_chr, const String &p_str);")
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result.append("bool operator!=(const char32_t *p_chr, const String &p_str);")
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result.append("String operator+(const char *p_chr, const String &p_str);")
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result.append("String operator+(const wchar_t *p_chr, const String &p_str);")
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result.append("String operator+(const char16_t *p_chr, const String &p_str);")
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result.append("String operator+(const char32_t *p_chr, const String &p_str);")
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result.append("")
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result.append("} // namespace godot")
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result.append(f"#endif // ! {header_guard}")
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return "\n".join(result)
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def generate_builtin_class_source(builtin_api, size, used_classes, fully_used_classes):
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result = []
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class_name = builtin_api["name"]
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snake_class_name = camel_to_snake(class_name)
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enum_type_name = f"GDNATIVE_VARIANT_TYPE_{snake_class_name.upper()}"
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add_header(f"{snake_class_name}.cpp", result)
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result.append("")
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result.append(f"#include <godot_cpp/variant/{snake_class_name}.hpp>")
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result.append("")
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result.append("#include <godot_cpp/core/binder_common.hpp>")
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result.append("")
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result.append("#include <godot_cpp/godot.hpp>")
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result.append("")
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# Only used since the "fully used" is included in header already.
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for include in used_classes:
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result.append(f"#include <godot_cpp/{get_include_path(include)}>")
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if len(used_classes) > 0:
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result.append("")
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result.append("#include <godot_cpp/core/builtin_ptrcall.hpp>")
|
|
result.append("")
|
|
result.append("namespace godot {")
|
|
result.append("")
|
|
|
|
result.append(f"{class_name}::_MethodBindings {class_name}::_method_bindings;")
|
|
result.append("")
|
|
|
|
result.append(f"void {class_name}::init_bindings() {{")
|
|
|
|
if "constructors" in builtin_api:
|
|
for constructor in builtin_api["constructors"]:
|
|
result.append(
|
|
f'\t_method_bindings.constructor_{constructor["index"]} = internal::interface->variant_get_ptr_constructor({enum_type_name}, {constructor["index"]});'
|
|
)
|
|
|
|
if builtin_api["has_destructor"]:
|
|
result.append(
|
|
f"\t_method_bindings.destructor = internal::interface->variant_get_ptr_destructor({enum_type_name});"
|
|
)
|
|
|
|
if "methods" in builtin_api:
|
|
for method in builtin_api["methods"]:
|
|
# TODO: Add error check for hash mismatch.
|
|
result.append(
|
|
f'\t_method_bindings.method_{method["name"]} = internal::interface->variant_get_ptr_builtin_method({enum_type_name}, "{method["name"]}", {method["hash"]});'
|
|
)
|
|
|
|
if "members" in builtin_api:
|
|
for member in builtin_api["members"]:
|
|
result.append(
|
|
f'\t_method_bindings.member_{member["name"]}_setter = internal::interface->variant_get_ptr_setter({enum_type_name}, "{member["name"]}");'
|
|
)
|
|
result.append(
|
|
f'\t_method_bindings.member_{member["name"]}_getter = internal::interface->variant_get_ptr_getter({enum_type_name}, "{member["name"]}");'
|
|
)
|
|
|
|
if "indexing_return_type" in builtin_api:
|
|
result.append(
|
|
f"\t_method_bindings.indexed_setter = internal::interface->variant_get_ptr_indexed_setter({enum_type_name});"
|
|
)
|
|
result.append(
|
|
f"\t_method_bindings.indexed_getter = internal::interface->variant_get_ptr_indexed_getter({enum_type_name});"
|
|
)
|
|
|
|
if "is_keyed" in builtin_api and builtin_api["is_keyed"]:
|
|
result.append(
|
|
f"\t_method_bindings.keyed_setter = internal::interface->variant_get_ptr_keyed_setter({enum_type_name});"
|
|
)
|
|
result.append(
|
|
f"\t_method_bindings.keyed_getter = internal::interface->variant_get_ptr_keyed_getter({enum_type_name});"
|
|
)
|
|
result.append(
|
|
f"\t_method_bindings.keyed_checker = internal::interface->variant_get_ptr_keyed_checker({enum_type_name});"
|
|
)
|
|
|
|
if "operators" in builtin_api:
|
|
for operator in builtin_api["operators"]:
|
|
if "right_type" in operator:
|
|
result.append(
|
|
f'\t_method_bindings.operator_{get_operator_id_name(operator["name"])}_{operator["right_type"]} = internal::interface->variant_get_ptr_operator_evaluator(GDNATIVE_VARIANT_OP_{get_operator_id_name(operator["name"]).upper()}, {enum_type_name}, GDNATIVE_VARIANT_TYPE_{camel_to_snake(operator["right_type"]).upper()});'
|
|
)
|
|
else:
|
|
result.append(
|
|
f'\t_method_bindings.operator_{get_operator_id_name(operator["name"])} = internal::interface->variant_get_ptr_operator_evaluator(GDNATIVE_VARIANT_OP_{get_operator_id_name(operator["name"]).upper()}, {enum_type_name}, GDNATIVE_VARIANT_TYPE_NIL);'
|
|
)
|
|
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
if "constructors" in builtin_api:
|
|
for constructor in builtin_api["constructors"]:
|
|
method_signature = f"{class_name}::{class_name}("
|
|
if "arguments" in constructor:
|
|
method_signature += make_function_parameters(
|
|
constructor["arguments"], include_default=False, for_builtin=True
|
|
)
|
|
method_signature += ") {"
|
|
|
|
result.append(method_signature)
|
|
|
|
method_call = (
|
|
f'\tinternal::_call_builtin_constructor(_method_bindings.constructor_{constructor["index"]}, &opaque'
|
|
)
|
|
if "arguments" in constructor:
|
|
method_call += ", "
|
|
arguments = []
|
|
for argument in constructor["arguments"]:
|
|
(encode, arg_name) = get_encoded_arg(
|
|
argument["name"],
|
|
argument["type"],
|
|
argument["meta"] if "meta" in argument else None,
|
|
)
|
|
result += encode
|
|
arguments.append(arg_name)
|
|
method_call += ", ".join(arguments)
|
|
method_call += ");"
|
|
|
|
result.append(method_call)
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
if builtin_api["has_destructor"]:
|
|
result.append(f"{class_name}::~{class_name}() {{")
|
|
result.append("\t_method_bindings.destructor(&opaque);")
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
method_list = []
|
|
|
|
if "methods" in builtin_api:
|
|
for method in builtin_api["methods"]:
|
|
method_list.append(method["name"])
|
|
|
|
if "is_vararg" in method and method["is_vararg"]:
|
|
# Done in the header because of the template.
|
|
continue
|
|
|
|
method_signature = ""
|
|
if "return_type" in method:
|
|
method_signature += f'{correct_type(method["return_type"])} '
|
|
else:
|
|
method_signature += "void "
|
|
|
|
method_signature += f'{class_name}::{method["name"]}('
|
|
if "arguments" in method:
|
|
method_signature += make_function_parameters(
|
|
method["arguments"], include_default=False, for_builtin=True
|
|
)
|
|
method_signature += ")"
|
|
if method["is_const"]:
|
|
method_signature += " const"
|
|
method_signature += " {"
|
|
|
|
result.append(method_signature)
|
|
|
|
method_call = "\t"
|
|
if "return_type" in method:
|
|
method_call += f'return internal::_call_builtin_method_ptr_ret<{correct_type(method["return_type"])}>('
|
|
else:
|
|
method_call += f"internal::_call_builtin_method_ptr_no_ret("
|
|
method_call += f'_method_bindings.method_{method["name"]}, '
|
|
if "is_static" in method and method["is_static"]:
|
|
method_call += "nullptr"
|
|
else:
|
|
method_call += "(GDNativeTypePtr)&opaque"
|
|
|
|
if "arguments" in method:
|
|
arguments = []
|
|
method_call += ", "
|
|
for argument in method["arguments"]:
|
|
(encode, arg_name) = get_encoded_arg(
|
|
argument["name"],
|
|
argument["type"],
|
|
argument["meta"] if "meta" in argument else None,
|
|
)
|
|
result += encode
|
|
arguments.append(arg_name)
|
|
method_call += ", ".join(arguments)
|
|
method_call += ");"
|
|
|
|
result.append(method_call)
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
if "members" in builtin_api:
|
|
for member in builtin_api["members"]:
|
|
if f'get_{member["name"]}' not in method_list:
|
|
result.append(f'{correct_type(member["type"])} {class_name}::get_{member["name"]}() const {{')
|
|
result.append(
|
|
f'\treturn internal::_call_builtin_ptr_getter<{correct_type(member["type"])}>(_method_bindings.member_{member["name"]}_getter, (const GDNativeTypePtr)&opaque);'
|
|
)
|
|
result.append("}")
|
|
|
|
if f'set_{member["name"]}' not in method_list:
|
|
result.append(f'void {class_name}::set_{member["name"]}({type_for_parameter(member["type"])}value) {{')
|
|
(encode, arg_name) = get_encoded_arg("value", member["type"], None)
|
|
result += encode
|
|
result.append(
|
|
f'\t_method_bindings.member_{member["name"]}_setter((const GDNativeTypePtr)&opaque, (const GDNativeTypePtr){arg_name});'
|
|
)
|
|
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
if "operators" in builtin_api:
|
|
for operator in builtin_api["operators"]:
|
|
if operator["name"] not in ["in", "xor"]:
|
|
if "right_type" in operator:
|
|
result.append(
|
|
f'{correct_type(operator["return_type"])} {class_name}::operator{operator["name"]}({type_for_parameter(operator["right_type"])}other) const {{'
|
|
)
|
|
(encode, arg_name) = get_encoded_arg("other", operator["right_type"], None)
|
|
result += encode
|
|
result.append(
|
|
f'\treturn internal::_call_builtin_operator_ptr<{correct_type(operator["return_type"])}>(_method_bindings.operator_{get_operator_id_name(operator["name"])}_{operator["right_type"]}, (const GDNativeTypePtr)&opaque, (const GDNativeTypePtr){arg_name});'
|
|
)
|
|
result.append("}")
|
|
else:
|
|
result.append(
|
|
f'{correct_type(operator["return_type"])} {class_name}::operator{operator["name"].replace("unary", "")}() const {{'
|
|
)
|
|
result.append(
|
|
f'\treturn internal::_call_builtin_operator_ptr<{correct_type(operator["return_type"])}>(_method_bindings.operator_{get_operator_id_name(operator["name"])}, (const GDNativeTypePtr)&opaque, (const GDNativeTypePtr)nullptr);'
|
|
)
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
result.append("} //namespace godot")
|
|
|
|
return "\n".join(result)
|
|
|
|
|
|
def generate_engine_classes_bindings(api, output_dir, use_template_get_node):
|
|
global engine_classes
|
|
|
|
include_gen_folder = Path(output_dir) / "include" / "godot_cpp" / "classes"
|
|
source_gen_folder = Path(output_dir) / "src" / "classes"
|
|
|
|
include_gen_folder.mkdir(parents=True, exist_ok=True)
|
|
source_gen_folder.mkdir(parents=True, exist_ok=True)
|
|
|
|
# First create map of classes.
|
|
for class_api in api["classes"]:
|
|
engine_classes[class_api["name"]] = class_api["is_refcounted"]
|
|
|
|
for class_api in api["classes"]:
|
|
# Check used classes for header include.
|
|
used_classes = set()
|
|
fully_used_classes = set()
|
|
|
|
class_name = class_api["name"]
|
|
|
|
header_filename = include_gen_folder / (camel_to_snake(class_api["name"]) + ".hpp")
|
|
source_filename = source_gen_folder / (camel_to_snake(class_api["name"]) + ".cpp")
|
|
|
|
if "methods" in class_api:
|
|
for method in class_api["methods"]:
|
|
if "arguments" in method:
|
|
for argument in method["arguments"]:
|
|
if is_included(argument["type"], class_name):
|
|
if is_enum(argument["type"]):
|
|
fully_used_classes.add(get_enum_class(argument["type"]))
|
|
elif "default_value" in argument:
|
|
fully_used_classes.add(argument["type"])
|
|
else:
|
|
used_classes.add(argument["type"])
|
|
if is_refcounted(argument["type"]):
|
|
fully_used_classes.add("Ref")
|
|
if "return_value" in method:
|
|
if is_included(method["return_value"]["type"], class_name):
|
|
if is_enum(method["return_value"]["type"]):
|
|
fully_used_classes.add(get_enum_class(method["return_value"]["type"]))
|
|
elif is_variant(method["return_value"]["type"]):
|
|
fully_used_classes.add(method["return_value"]["type"])
|
|
else:
|
|
used_classes.add(method["return_value"]["type"])
|
|
if is_refcounted(method["return_value"]["type"]):
|
|
fully_used_classes.add("Ref")
|
|
|
|
if "members" in class_api:
|
|
for member in class_api["members"]:
|
|
if is_included(member["type"], class_name):
|
|
if is_enum(member["type"]):
|
|
fully_used_classes.add(get_enum_class(member["type"]))
|
|
else:
|
|
used_classes.add(member["type"])
|
|
if is_refcounted(member["type"]):
|
|
fully_used_classes.add("Ref")
|
|
|
|
if "inherits" in class_api:
|
|
if is_included(class_api["inherits"], class_name):
|
|
fully_used_classes.add(class_api["inherits"])
|
|
if is_refcounted(class_api["name"]):
|
|
fully_used_classes.add("Ref")
|
|
else:
|
|
fully_used_classes.add("Wrapped")
|
|
|
|
for type_name in fully_used_classes:
|
|
if type_name in used_classes:
|
|
used_classes.remove(type_name)
|
|
|
|
with header_filename.open("w+") as header_file:
|
|
header_file.write(
|
|
generate_engine_class_header(class_api, used_classes, fully_used_classes, use_template_get_node)
|
|
)
|
|
|
|
with source_filename.open("w+") as source_file:
|
|
source_file.write(
|
|
generate_engine_class_source(class_api, used_classes, fully_used_classes, use_template_get_node)
|
|
)
|
|
|
|
|
|
def generate_engine_class_header(class_api, used_classes, fully_used_classes, use_template_get_node):
|
|
result = []
|
|
|
|
class_name = class_api["name"]
|
|
snake_class_name = camel_to_snake(class_name).upper()
|
|
|
|
add_header(f"{snake_class_name.lower()}.hpp", result)
|
|
|
|
header_guard = f"GODOT_CPP_{snake_class_name}_HPP"
|
|
|
|
result.append(f"#ifndef {header_guard}")
|
|
result.append(f"#define {header_guard}")
|
|
|
|
result.append("")
|
|
|
|
for included in fully_used_classes:
|
|
result.append(f"#include <godot_cpp/{get_include_path(included)}>")
|
|
|
|
if len(fully_used_classes) > 0:
|
|
result.append("")
|
|
|
|
result.append("namespace godot {")
|
|
result.append("")
|
|
|
|
for type_name in used_classes:
|
|
result.append(f"class {type_name};")
|
|
|
|
if len(used_classes) > 0:
|
|
result.append("")
|
|
|
|
inherits = class_api["inherits"] if "inherits" in class_api else "Wrapped"
|
|
result.append(f"class {class_name} : public {inherits} {{")
|
|
|
|
result.append(f"\tGDNATIVE_CLASS({class_name}, {inherits})")
|
|
result.append("")
|
|
|
|
result.append("public:")
|
|
|
|
if "enums" in class_api:
|
|
for enum_api in class_api["enums"]:
|
|
result.append(f'\tenum {enum_api["name"]} {{')
|
|
for value in enum_api["values"]:
|
|
result.append(f'\t\t{value["name"]} = {value["value"]},')
|
|
result.append("\t};")
|
|
result.append("")
|
|
|
|
has_vararg_method = False
|
|
|
|
if "methods" in class_api:
|
|
for method in class_api["methods"]:
|
|
if method["is_virtual"]:
|
|
# TODO: See how to bind virtual methods (if they are even needed).
|
|
continue
|
|
|
|
method_signature = "\t"
|
|
|
|
vararg = "is_vararg" in method and method["is_vararg"]
|
|
if vararg:
|
|
has_vararg_method = True
|
|
method_signature += "private: "
|
|
|
|
if "return_value" in method:
|
|
method_signature += correct_type(
|
|
method["return_value"]["type"],
|
|
method["return_value"]["meta"] if "meta" in method["return_value"] else None,
|
|
)
|
|
else:
|
|
method_signature += "void"
|
|
|
|
if not method_signature.endswith("*"):
|
|
method_signature += " "
|
|
|
|
method_signature += f'{escape_identifier(method["name"])}'
|
|
|
|
if vararg or (use_template_get_node and class_name == "Node" and method["name"] == "get_node"):
|
|
method_signature += "_internal"
|
|
|
|
method_signature += "("
|
|
|
|
method_arguments = []
|
|
if "arguments" in method:
|
|
method_arguments = method["arguments"]
|
|
|
|
if not vararg:
|
|
method_signature += make_function_parameters(
|
|
method_arguments, include_default=True, is_vararg=vararg, for_builtin=False
|
|
)
|
|
else:
|
|
method_signature += "const Variant **args, GDNativeInt arg_count"
|
|
|
|
method_signature += ")"
|
|
|
|
if method["is_const"]:
|
|
method_signature += " const"
|
|
|
|
method_signature += ";"
|
|
result.append(method_signature)
|
|
|
|
if vararg:
|
|
# Add templated version.
|
|
method_signature = "\tpublic: template<class... Args> "
|
|
|
|
if "return_value" in method:
|
|
method_signature += correct_type(
|
|
method["return_value"]["type"],
|
|
method["return_value"]["meta"] if "meta" in method["return_value"] else None,
|
|
)
|
|
else:
|
|
method_signature += "void"
|
|
|
|
if not method_signature.endswith("*"):
|
|
method_signature += " "
|
|
|
|
method_signature += f'{escape_identifier(method["name"])}'
|
|
|
|
method_arguments = []
|
|
if "arguments" in method:
|
|
method_arguments = method["arguments"]
|
|
|
|
method_signature += "("
|
|
|
|
method_signature += make_function_parameters(method_arguments, include_default=True, is_vararg=vararg)
|
|
|
|
method_signature += ")"
|
|
|
|
if method["is_const"]:
|
|
method_signature += " const"
|
|
|
|
method_signature += " {"
|
|
result.append(method_signature)
|
|
|
|
args_array = f"\t\tstd::array<Variant, {len(method_arguments)} + sizeof...(Args)> variant_args {{ "
|
|
for argument in method_arguments:
|
|
if argument["type"] == "Variant":
|
|
args_array += argument["name"]
|
|
else:
|
|
args_array += f'Variant({argument["name"]})'
|
|
args_array += ", "
|
|
|
|
args_array += "Variant(args)... };"
|
|
result.append(args_array)
|
|
result.append(f"\t\tstd::array<const Variant *, {len(method_arguments)} + sizeof...(Args)> call_args;")
|
|
result.append("\t\tfor(size_t i = 0; i < variant_args.size(); i++) {")
|
|
result.append("\t\t\tcall_args[i] = &variant_args[i];")
|
|
result.append("\t\t}")
|
|
|
|
call_line = "\t\t"
|
|
|
|
if "return_value" in method and method["return_value"]["type"] != "void":
|
|
call_line += "return "
|
|
|
|
call_line += f'{escape_identifier(method["name"])}_internal(call_args.data(), variant_args.size());'
|
|
result.append(call_line)
|
|
result.append("\t}")
|
|
|
|
# Special cases.
|
|
if class_name == "Object":
|
|
result.append("")
|
|
result.append("\ttemplate<class T>")
|
|
result.append("\tstatic T *cast_to(Object *p_object);")
|
|
elif use_template_get_node and class_name == "Node":
|
|
result.append("\ttemplate<class T>")
|
|
result.append("\tT *get_node(const NodePath &p_path) { return Object::cast_to<T>(get_node_internal(p_path)); }")
|
|
|
|
# Constructor.
|
|
result.append("")
|
|
result.append(f"\t{class_name}();")
|
|
|
|
result.append("")
|
|
result.append("};")
|
|
result.append("")
|
|
|
|
result.append("} // namespace godot")
|
|
|
|
result.append(f"#endif // ! {header_guard}")
|
|
|
|
return "\n".join(result)
|
|
|
|
|
|
def generate_engine_class_source(class_api, used_classes, fully_used_classes, use_template_get_node):
|
|
result = []
|
|
|
|
class_name = class_api["name"]
|
|
snake_class_name = camel_to_snake(class_name)
|
|
inherits = class_api["inherits"] if "inherits" in class_api else "Wrapped"
|
|
|
|
add_header(f"{snake_class_name}.cpp", result)
|
|
|
|
result.append(f"#include <godot_cpp/classes/{snake_class_name}.hpp>")
|
|
result.append("")
|
|
result.append(f"#include <godot_cpp/core/engine_ptrcall.hpp>")
|
|
result.append(f"#include <godot_cpp/core/error_macros.hpp>")
|
|
result.append("")
|
|
|
|
for included in used_classes:
|
|
result.append(f"#include <godot_cpp/{get_include_path(included)}>")
|
|
|
|
if len(used_classes) > 0:
|
|
result.append(f"")
|
|
|
|
result.append("namespace godot {")
|
|
result.append("")
|
|
|
|
if "methods" in class_api:
|
|
for method in class_api["methods"]:
|
|
if method["is_virtual"]:
|
|
# TODO: See how to bind virtual methods (if they are even needed).
|
|
continue
|
|
|
|
vararg = "is_vararg" in method and method["is_vararg"]
|
|
|
|
# Method signature.
|
|
method_signature = ""
|
|
if "return_value" in method:
|
|
method_signature += correct_type(
|
|
method["return_value"]["type"],
|
|
method["return_value"]["meta"] if "meta" in method["return_value"] else None,
|
|
)
|
|
else:
|
|
method_signature += "void"
|
|
|
|
if not method_signature.endswith("*"):
|
|
method_signature += " "
|
|
|
|
method_signature += f'{class_name}::{escape_identifier(method["name"])}'
|
|
|
|
if vararg or (use_template_get_node and class_name == "Node" and method["name"] == "get_node"):
|
|
method_signature += "_internal"
|
|
|
|
method_signature += "("
|
|
|
|
method_arguments = []
|
|
if "arguments" in method:
|
|
method_arguments = method["arguments"]
|
|
|
|
if not vararg:
|
|
method_signature += make_function_parameters(
|
|
method_arguments, include_default=False, is_vararg=vararg, for_builtin=False
|
|
)
|
|
else:
|
|
method_signature += "const Variant **args, GDNativeInt arg_count"
|
|
|
|
method_signature += ")"
|
|
|
|
if method["is_const"]:
|
|
method_signature += " const"
|
|
|
|
method_signature += " {"
|
|
result.append(method_signature)
|
|
|
|
# Method body.
|
|
result.append(
|
|
f'\tstatic GDNativeMethodBindPtr ___method_bind = internal::interface->classdb_get_method_bind("{class_name}", "{method["name"]}", {method["hash"]});'
|
|
)
|
|
method_call = "\t"
|
|
has_return = "return_value" in method and method["return_value"]["type"] != "void"
|
|
|
|
if has_return:
|
|
result.append(
|
|
f'\tCHECK_METHOD_BIND_RET(___method_bind, {get_default_value_for_type(method["return_value"]["type"])});'
|
|
)
|
|
else:
|
|
result.append(f"\tCHECK_METHOD_BIND(___method_bind);")
|
|
|
|
is_ref = False
|
|
if not vararg:
|
|
if has_return:
|
|
return_type = method["return_value"]["type"]
|
|
meta_type = method["return_value"]["meta"] if "meta" in method["return_value"] else None
|
|
if is_pod_type(return_type) or is_variant(return_type) or is_enum(return_type):
|
|
method_call += f"return internal::_call_native_mb_ret<{correct_type(return_type, meta_type)}>(___method_bind, _owner"
|
|
elif is_refcounted(return_type):
|
|
method_call += f"return Ref<{return_type}>::___internal_constructor(internal::_call_native_mb_ret_obj<{return_type}>(___method_bind, _owner"
|
|
is_ref = True
|
|
else:
|
|
method_call += f"return ({correct_type(return_type)})internal::_call_native_mb_ret_obj<{return_type}>(___method_bind, _owner"
|
|
else:
|
|
method_call += f"internal::_call_native_mb_no_ret(___method_bind, _owner"
|
|
|
|
if "arguments" in method:
|
|
method_call += ", "
|
|
arguments = []
|
|
for argument in method["arguments"]:
|
|
(encode, arg_name) = get_encoded_arg(
|
|
argument["name"],
|
|
argument["type"],
|
|
argument["meta"] if "meta" in argument else None,
|
|
)
|
|
result += encode
|
|
arguments.append(arg_name)
|
|
method_call += ", ".join(arguments)
|
|
else: # vararg.
|
|
result.append("\tGDNativeCallError error;")
|
|
result.append("\tVariant ret;")
|
|
method_call += "internal::interface->object_method_bind_call(___method_bind, _owner, (const GDNativeVariantPtr *)args, arg_count, &ret, &error"
|
|
|
|
if is_ref:
|
|
method_call += ")" # Close Ref<> constructor.
|
|
method_call += ");"
|
|
result.append(method_call)
|
|
|
|
if vararg and ("return_value" in method and method["return_value"]["type"] != "void"):
|
|
result.append("\treturn ret;")
|
|
|
|
result.append("}")
|
|
result.append("")
|
|
|
|
# Constructor.
|
|
result.append(f"{class_name}::{class_name}() : {inherits}(godot::internal::empty_constructor()) {{")
|
|
result.append(
|
|
f'\tstatic GDNativeClassConstructor constructor = internal::interface->classdb_get_constructor("{class_name}");'
|
|
)
|
|
result.append("\t_owner = (GodotObject *)constructor();")
|
|
result.append(
|
|
f"\tinternal::interface->object_set_instance_binding((GDNativeObjectPtr)_owner, internal::token, this, &{class_name}::___binding_callbacks);"
|
|
)
|
|
result.append("}")
|
|
|
|
result.append("")
|
|
result.append("} // namespace godot ")
|
|
|
|
return "\n".join(result)
|
|
|
|
|
|
def generate_global_constants(api, output_dir):
|
|
include_gen_folder = Path(output_dir) / "include" / "godot_cpp" / "classes"
|
|
source_gen_folder = Path(output_dir) / "src" / "classes"
|
|
|
|
include_gen_folder.mkdir(parents=True, exist_ok=True)
|
|
source_gen_folder.mkdir(parents=True, exist_ok=True)
|
|
|
|
# Generate header
|
|
|
|
header = []
|
|
add_header("global_constants.hpp", header)
|
|
|
|
header_filename = include_gen_folder / "global_constants.hpp"
|
|
|
|
header_guard = "GODOT_CPP_GLOBAL_CONSTANTS_HPP"
|
|
header.append(f"#ifndef {header_guard}")
|
|
header.append(f"#define {header_guard}")
|
|
header.append("")
|
|
header.append("namespace godot {")
|
|
header.append("")
|
|
|
|
for constant in api["global_constants"]:
|
|
header.append(f'\tconst int {escape_identifier(constant["name"])} = {constant["value"]};')
|
|
|
|
header.append("")
|
|
|
|
for enum_def in api["global_enums"]:
|
|
if enum_def["name"].startswith("Variant."):
|
|
continue
|
|
|
|
header.append(f'\tenum {enum_def["name"]} {{')
|
|
for value in enum_def["values"]:
|
|
header.append(f'\t\t{value["name"]} = {value["value"]},')
|
|
header.append("\t};")
|
|
header.append("")
|
|
|
|
header.append("} // namespace godot")
|
|
|
|
header.append("")
|
|
header.append(f"#endif // ! {header_guard}")
|
|
|
|
with header_filename.open("w+") as header_file:
|
|
header_file.write("\n".join(header))
|
|
|
|
|
|
def generate_utility_functions(api, output_dir):
|
|
include_gen_folder = Path(output_dir) / "include" / "godot_cpp" / "variant"
|
|
source_gen_folder = Path(output_dir) / "src" / "variant"
|
|
|
|
include_gen_folder.mkdir(parents=True, exist_ok=True)
|
|
source_gen_folder.mkdir(parents=True, exist_ok=True)
|
|
|
|
# Generate header.
|
|
|
|
header = []
|
|
add_header("utility_functions.hpp", header)
|
|
|
|
header_filename = include_gen_folder / "utility_functions.hpp"
|
|
|
|
header_guard = "GODOT_CPP_UTILITY_FUNCTIONS_HPP"
|
|
header.append(f"#ifndef {header_guard}")
|
|
header.append(f"#define {header_guard}")
|
|
header.append("")
|
|
header.append("#include <godot_cpp/variant/builtin_types.hpp>")
|
|
header.append("#include <godot_cpp/variant/variant.hpp>")
|
|
header.append("")
|
|
header.append("#include <array>")
|
|
header.append("")
|
|
header.append("namespace godot {")
|
|
header.append("")
|
|
header.append("class UtilityFunctions {")
|
|
header.append("public:")
|
|
|
|
for function in api["utility_functions"]:
|
|
vararg = "is_vararg" in function and function["is_vararg"]
|
|
|
|
function_signature = "\t"
|
|
if vararg:
|
|
function_signature += "private: "
|
|
function_signature += "static "
|
|
|
|
if "return_type" in function:
|
|
if not vararg:
|
|
function_signature += f'{correct_type(function["return_type"])} '
|
|
else:
|
|
function_signature += "Variant "
|
|
else:
|
|
function_signature += "void "
|
|
|
|
function_signature += f'{escape_identifier(function["name"])}'
|
|
|
|
if vararg:
|
|
function_signature += "_internal"
|
|
|
|
function_signature += "("
|
|
|
|
function_arguments = []
|
|
if "arguments" in function:
|
|
function_arguments = function["arguments"]
|
|
|
|
if not vararg:
|
|
function_signature += make_function_parameters(function_arguments, include_default=False)
|
|
else:
|
|
function_signature += "const Variant **args, GDNativeInt arg_count"
|
|
function_signature += ");"
|
|
|
|
header.append(function_signature)
|
|
|
|
if vararg:
|
|
# Add templated version.
|
|
method_signature = "\tpublic: template<class... Args> static "
|
|
|
|
if "return_type" in function:
|
|
method_signature += correct_type(function["return_type"])
|
|
else:
|
|
method_signature += "void"
|
|
|
|
if not method_signature.endswith("*"):
|
|
method_signature += " "
|
|
|
|
method_signature += f'{escape_identifier(function["name"])}'
|
|
|
|
method_arguments = []
|
|
if "arguments" in function:
|
|
method_arguments = function["arguments"]
|
|
|
|
method_signature += "("
|
|
method_signature += make_function_parameters(method_arguments, include_default=True, is_vararg=vararg)
|
|
method_signature += ")"
|
|
|
|
method_signature += " {"
|
|
header.append(method_signature)
|
|
|
|
args_array = f"\t\tstd::array<Variant, {len(method_arguments)} + sizeof...(Args)> variant_args {{ "
|
|
for argument in method_arguments:
|
|
if argument["type"] == "Variant":
|
|
args_array += argument["name"]
|
|
else:
|
|
args_array += f'Variant({argument["name"]})'
|
|
args_array += ", "
|
|
|
|
args_array += "Variant(args)... };"
|
|
header.append(args_array)
|
|
header.append(f"\t\tstd::array<const Variant *, {len(method_arguments)} + sizeof...(Args)> call_args;")
|
|
header.append("\t\tfor(size_t i = 0; i < variant_args.size(); i++) {")
|
|
header.append("\t\t\tcall_args[i] = &variant_args[i];")
|
|
header.append("\t\t}")
|
|
|
|
call_line = "\t\t"
|
|
|
|
if "return_type" in function and function["return_type"] != "void":
|
|
call_line += "return "
|
|
|
|
call_line += f'{escape_identifier(function["name"])}_internal(call_args.data(), variant_args.size());'
|
|
header.append(call_line)
|
|
header.append("\t}")
|
|
|
|
header.append("};")
|
|
header.append("")
|
|
header.append("} // namespace godot")
|
|
header.append("")
|
|
header.append(f"#endif // ! {header_guard}")
|
|
|
|
with header_filename.open("w+") as header_file:
|
|
header_file.write("\n".join(header))
|
|
|
|
# Generate source.
|
|
|
|
source = []
|
|
add_header("utility_functions.cpp", source)
|
|
source_filename = source_gen_folder / "utility_functions.cpp"
|
|
|
|
source.append("#include <godot_cpp/variant/utility_functions.hpp>")
|
|
source.append("")
|
|
source.append("#include <godot_cpp/core/error_macros.hpp>")
|
|
source.append("#include <godot_cpp/core/engine_ptrcall.hpp>")
|
|
source.append("")
|
|
source.append("namespace godot {")
|
|
source.append("")
|
|
|
|
for function in api["utility_functions"]:
|
|
vararg = "is_vararg" in function and function["is_vararg"]
|
|
|
|
function_signature = ""
|
|
if "return_type" in function:
|
|
if not vararg:
|
|
function_signature += f'{correct_type(function["return_type"])}'
|
|
else:
|
|
function_signature += "Variant"
|
|
else:
|
|
function_signature += "void"
|
|
|
|
if not function_signature.endswith("*"):
|
|
function_signature += " "
|
|
|
|
function_signature += f'UtilityFunctions::{escape_identifier(function["name"])}'
|
|
if vararg:
|
|
function_signature += "_internal"
|
|
function_signature += "("
|
|
|
|
function_arguments = []
|
|
if "arguments" in function:
|
|
function_arguments = function["arguments"]
|
|
|
|
if not vararg:
|
|
function_signature += make_function_parameters(function_arguments, include_default=False)
|
|
else:
|
|
function_signature += "const Variant **args, GDNativeInt arg_count"
|
|
function_signature += ") {"
|
|
|
|
source.append(function_signature)
|
|
|
|
# Function body.
|
|
|
|
source.append(
|
|
f'\tstatic GDNativePtrUtilityFunction ___function = internal::interface->variant_get_ptr_utility_function("{function["name"]}", {function["hash"]});'
|
|
)
|
|
has_return = "return_type" in function and function["return_type"] != "void"
|
|
if has_return:
|
|
source.append(
|
|
f'\tCHECK_METHOD_BIND_RET(___function, {get_default_value_for_type(function["return_type"])});'
|
|
)
|
|
else:
|
|
source.append(f"\tCHECK_METHOD_BIND(___function);")
|
|
|
|
function_call = "\t"
|
|
if not vararg:
|
|
if has_return:
|
|
function_call += "return "
|
|
if function["return_type"] == "Object":
|
|
function_call += "internal::_call_utility_ret_obj(___function"
|
|
else:
|
|
function_call += f'internal::_call_utility_ret<{correct_type(function["return_type"])}>(___function'
|
|
else:
|
|
function_call += "internal::_call_utility_no_ret(___function"
|
|
|
|
if "arguments" in function:
|
|
function_call += ", "
|
|
arguments = []
|
|
for argument in function["arguments"]:
|
|
(encode, arg_name) = get_encoded_arg(
|
|
argument["name"],
|
|
argument["type"],
|
|
argument["meta"] if "meta" in argument else None,
|
|
)
|
|
source += encode
|
|
arguments.append(arg_name)
|
|
function_call += ", ".join(arguments)
|
|
else:
|
|
source.append("\tVariant ret;")
|
|
function_call += "___function(&ret, (const GDNativeVariantPtr *)args, arg_count"
|
|
|
|
function_call += ");"
|
|
source.append(function_call)
|
|
|
|
if vararg and has_return:
|
|
source.append("\treturn ret;")
|
|
|
|
source.append("}")
|
|
source.append("")
|
|
|
|
source.append("} // namespace godot")
|
|
|
|
with source_filename.open("w+") as source_file:
|
|
source_file.write("\n".join(source))
|
|
|
|
|
|
# Helper functions.
|
|
|
|
|
|
def camel_to_snake(name):
|
|
name = re.sub("(.)([A-Z][a-z]+)", r"\1_\2", name)
|
|
name = re.sub("([a-z0-9])([A-Z])", r"\1_\2", name)
|
|
return name.replace("2_D", "2D").replace("3_D", "3D").lower()
|
|
|
|
|
|
def make_function_parameters(parameters, include_default=False, for_builtin=False, is_vararg=False):
|
|
signature = []
|
|
|
|
for par in parameters:
|
|
parameter = type_for_parameter(par["type"], par["meta"] if "meta" in par else None)
|
|
parameter += escape_identifier(par["name"])
|
|
|
|
if include_default and "default_value" in par and (not for_builtin or par["type"] != "Variant"):
|
|
parameter += " = "
|
|
if is_enum(par["type"]):
|
|
parameter += f'({correct_type(par["type"])})'
|
|
parameter += correct_default_value(par["default_value"], par["type"])
|
|
signature.append(parameter)
|
|
|
|
if is_vararg:
|
|
signature.append("const Args&... args")
|
|
|
|
return ", ".join(signature)
|
|
|
|
|
|
def type_for_parameter(type_name, meta=None):
|
|
if is_pod_type(type_name) and type_name != "Nil" or is_enum(type_name):
|
|
return f"{correct_type(type_name, meta)} "
|
|
elif is_variant(type_name) or is_refcounted(type_name):
|
|
return f"const {correct_type(type_name)} &"
|
|
else:
|
|
return f"{correct_type(type_name)}"
|
|
|
|
|
|
def get_include_path(type_name):
|
|
base_dir = ""
|
|
if type_name == "Object":
|
|
base_dir = "core"
|
|
elif is_variant(type_name):
|
|
base_dir = "variant"
|
|
else:
|
|
base_dir = "classes"
|
|
|
|
return f"{base_dir}/{camel_to_snake(type_name)}.hpp"
|
|
|
|
|
|
def get_encoded_arg(arg_name, type_name, type_meta):
|
|
result = []
|
|
|
|
name = escape_identifier(arg_name)
|
|
arg_type = correct_type(type_name)
|
|
if is_pod_type(arg_type):
|
|
result.append(f"\t{get_gdnative_type(arg_type)} {name}_encoded;")
|
|
result.append(f"\tPtrToArg<{correct_type(type_name, type_meta)}>::encode({name}, &{name}_encoded);")
|
|
name = f"&{name}_encoded"
|
|
elif is_engine_class(type_name):
|
|
name = f"{name}->_owner"
|
|
else:
|
|
name = f"&{name}"
|
|
|
|
return (result, name)
|
|
|
|
|
|
# Engine idiosyncrasies.
|
|
|
|
|
|
def is_pod_type(type_name):
|
|
"""
|
|
Those are types for which no class should be generated.
|
|
"""
|
|
return type_name in [
|
|
"Nil",
|
|
"void",
|
|
"int",
|
|
"float",
|
|
"bool",
|
|
]
|
|
|
|
|
|
def is_enum(type_name):
|
|
return type_name.startswith("enum::")
|
|
|
|
|
|
def get_enum_class(enum_name: str):
|
|
if "." in enum_name:
|
|
return enum_name.replace("enum::", "").split(".")[0]
|
|
else:
|
|
return "GlobalConstants"
|
|
|
|
|
|
def get_enum_name(enum_name: str):
|
|
return enum_name.replace("enum::", "").split(".")[-1]
|
|
|
|
|
|
def is_variant(type_name):
|
|
return type_name == "Variant" or type_name in builtin_classes or type_name == "Nil"
|
|
|
|
|
|
def is_engine_class(type_name):
|
|
return type_name in engine_classes
|
|
|
|
|
|
def is_refcounted(type_name):
|
|
return type_name in engine_classes and engine_classes[type_name]
|
|
|
|
|
|
def is_included(type_name, current_type):
|
|
"""
|
|
Check if a builtin type should be included.
|
|
This removes Variant and POD types from inclusion, and the current type.
|
|
"""
|
|
to_include = get_enum_class(type_name) if is_enum(type_name) else type_name
|
|
return to_include != current_type and not is_pod_type(to_include)
|
|
|
|
|
|
def correct_default_value(value, type_name):
|
|
value_map = {
|
|
"null": "nullptr",
|
|
'""': "String()",
|
|
'&""': "StringName()",
|
|
"[]": "Array()",
|
|
"{}": "Dictionary()",
|
|
"Transform2D(1, 0, 0, 1, 0, 0)": "Transform2D()", # Default transform.
|
|
"Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)": "Transform3D()", # Default transform.
|
|
}
|
|
if value in value_map:
|
|
return value_map[value]
|
|
if value == "":
|
|
return f"{type_name}()"
|
|
return value
|
|
|
|
|
|
def correct_type(type_name, meta=None):
|
|
type_conversion = {"float": "double", "int": "int64_t", "Nil": "Variant"}
|
|
if meta != None:
|
|
if "int" in meta:
|
|
return f"{meta}_t"
|
|
else:
|
|
return meta
|
|
if type_name in type_conversion:
|
|
return type_conversion[type_name]
|
|
if is_enum(type_name):
|
|
base_class = get_enum_class(type_name)
|
|
if base_class == "GlobalConstants":
|
|
return f"{get_enum_name(type_name)}"
|
|
return f"{base_class}::{get_enum_name(type_name)}"
|
|
if is_refcounted(type_name):
|
|
return f"Ref<{type_name}>"
|
|
if type_name == "Object" or is_engine_class(type_name):
|
|
return f"{type_name} *"
|
|
return type_name
|
|
|
|
|
|
def get_gdnative_type(type_name):
|
|
type_conversion_map = {
|
|
"bool": "uint32_t",
|
|
"int": "int64_t",
|
|
"float": "double",
|
|
}
|
|
|
|
if type_name in type_conversion_map:
|
|
return type_conversion_map[type_name]
|
|
return type_name
|
|
|
|
|
|
def escape_identifier(id):
|
|
cpp_keywords_map = {
|
|
"class": "_class",
|
|
"char": "_char",
|
|
"short": "_short",
|
|
"bool": "_bool",
|
|
"int": "_int",
|
|
"default": "_default",
|
|
"case": "_case",
|
|
"switch": "_switch",
|
|
"export": "_export",
|
|
"template": "_template",
|
|
"new": "new_",
|
|
"operator": "_operator",
|
|
"typeof": "type_of",
|
|
"typename": "type_name",
|
|
}
|
|
if id in cpp_keywords_map:
|
|
return cpp_keywords_map[id]
|
|
return id
|
|
|
|
|
|
def get_operator_id_name(op):
|
|
op_id_map = {
|
|
"==": "equal",
|
|
"!=": "not_equal",
|
|
"<": "less",
|
|
"<=": "less_equal",
|
|
">": "greater",
|
|
">=": "greater_equal",
|
|
"+": "add",
|
|
"-": "subtract",
|
|
"*": "multiply",
|
|
"/": "divide",
|
|
"unary-": "negate",
|
|
"unary+": "positive",
|
|
"%": "module",
|
|
"<<": "shift_left",
|
|
">>": "shift_right",
|
|
"&": "bit_and",
|
|
"|": "bit_or",
|
|
"^": "bit_xor",
|
|
"~": "bit_negate",
|
|
"and": "and",
|
|
"or": "or",
|
|
"xor": "xor",
|
|
"not": "not",
|
|
"and": "and",
|
|
"in": "in",
|
|
}
|
|
return op_id_map[op]
|
|
|
|
|
|
def get_default_value_for_type(type_name):
|
|
if type_name == "int":
|
|
return "0"
|
|
if type_name == "float":
|
|
return "0.0"
|
|
if type_name == "bool":
|
|
return "false"
|
|
if is_enum(type_name):
|
|
return f"{correct_type(type_name)}(0)"
|
|
if is_variant(type_name):
|
|
return f"{type_name}()"
|
|
if is_refcounted(type_name):
|
|
return f"Ref<{type_name}>()"
|
|
return "nullptr"
|
|
|
|
|
|
header = """\
|
|
/*************************************************************************/
|
|
/* $filename */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
"""
|
|
|
|
|
|
def add_header(filename, lines):
|
|
desired_length = len(header.split("\n")[0])
|
|
pad_spaces = desired_length - 6 - len(filename)
|
|
|
|
for num, line in enumerate(header.split("\n")):
|
|
if num == 1:
|
|
new_line = f"/* {filename}{' ' * pad_spaces}*/"
|
|
lines.append(new_line)
|
|
else:
|
|
lines.append(line)
|
|
|
|
lines.append("// THIS FILE IS GENERATED. EDITS WILL BE LOST.")
|
|
lines.append("")
|