423 lines
11 KiB
GDScript
423 lines
11 KiB
GDScript
tool
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extends Reference
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class GDSStaticClassParser:
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var scope_data : String = ""
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var raw_scope_data : String = ""
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var static_methods : PoolStringArray = PoolStringArray()
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func convert_to_string(current_scope_level : int = 0) -> String:
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var s : String = scope_data + "- (" + raw_scope_data + ")---GDSScope---\n"
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for m in static_methods:
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s += m + "\n"
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s += "\n"
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return s
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func get_cpp_header_string() -> String:
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var s : String = ""
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s += "class _" + scope_data + " : public Object {\n"
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s += " GDCLASS(" + scope_data + ", Object);\n\n"
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s += " public:\n"
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s += "\n"
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for m in static_methods:
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s += " " + transform_method_to_cpp(m) + ";\n"
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s += "\n"
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s += " static _" + scope_data + "* get_singleton();\n"
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s += "\n"
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s += " " + scope_data + "();\n"
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s += " ~" + scope_data + "();\n"
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s += "\n"
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s += " protected:\n"
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s += " static void _bind_methods();\n"
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s += "\n"
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s += " static _" + scope_data + "* self;\n"
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s += "\n"
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s += "};"
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s += "\n"
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return s
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func get_cpp_impl_string(current_scope_level : int = 0, owner_class_name : String = "") -> String:
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var s : String = ""
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s += "\n"
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for m in static_methods:
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#scope_data
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s += transform_method_to_cpp(m, "_" + scope_data + "::", false) + " {\n"
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s += " " + transform_method_to_cpp_call(m, scope_data + "::") + ";\n"
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s += "}\n\n"
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s += "_" + scope_data + "* _" + scope_data + "::get_singleton() {\n"
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s += " return self;\n"
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s += "}\n\n"
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s += "\n"
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s += "_" + scope_data + "::_" + scope_data + "() {\n"
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s += " self = this;\n"
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s += "}\n\n"
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s += "_" + scope_data + "::~_" + scope_data + "() {\n"
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s += " self = nullptr;\n"
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s += "}\n\n"
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s += "\n"
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s += "static void _" + scope_data + "::_bind_methods() {\n"
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s += create_cpp_binds_string()
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s += "}\n\n"
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s += "_" + scope_data + "* _" + scope_data + "::self = nullptr;\n"
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return s
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func create_cpp_binds_string() -> String:
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var s : String = ""
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for m in static_methods:
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s += " " + transform_method_to_cpp_binding(m, "_" + scope_data) + ";\n"
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s += "\n"
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return s
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func transform_method_to_cpp(func_raw_data : String, name_prefix : String = "", default_params : bool = true) -> String:
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var func_data : String = func_raw_data
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var func_ret_type : String = "void"
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var indx : int = func_raw_data.find(" -> ")
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if indx != -1:
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func_ret_type = func_raw_data.substr(indx + 4)
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func_data = func_raw_data.substr(0, indx)
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var func_final : String = func_ret_type + " "
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indx = func_data.find("(")
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var func_name : String = func_data.substr(0, indx)
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func_final += name_prefix + func_name + "("
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var func_params : String = func_data.substr(indx + 1, func_data.length() - indx - 2)
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if func_params != "":
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var params : PoolStringArray = func_params.split(",", false)
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for i in range(params.size()):
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var p : String = params[i]
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var default_value_indx : int = p.find("=")
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var default_value : String
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if default_value_indx != -1:
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default_value = p.substr(default_value_indx + 1).strip_edges()
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p = p.substr(0, default_value_indx).strip_edges()
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var type_indx : int = p.find(":")
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if type_indx != -1:
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var param_type : String = p.substr(type_indx + 1).strip_edges()
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p = p.substr(0, type_indx).strip_edges()
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if param_type == "int" || param_type == "float" || param_type == "bool" || param_type == "RID":
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func_final += "const " + param_type + " "
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else:
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func_final += "const " + param_type + " &"
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else:
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func_final += "const Variant &"
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func_final += p
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if default_params && default_value_indx != -1:
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func_final += " = " + default_value
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if i + 1 < params.size():
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func_final += ", "
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func_final += ")"
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return func_final
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func transform_method_to_cpp_call(func_raw_data : String, name_prefix : String = "") -> String:
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var func_data : String = func_raw_data
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var func_ret_type : String = "void"
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var indx : int = func_raw_data.find(" -> ")
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if indx != -1:
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func_ret_type = func_raw_data.substr(indx + 4)
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func_data = func_raw_data.substr(0, indx)
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var func_final : String = ""
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if func_ret_type != "void":
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func_final += "return "
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indx = func_data.find("(")
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var func_name : String = func_data.substr(0, indx)
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func_final += name_prefix + func_name + "("
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var func_params : String = func_data.substr(indx + 1, func_data.length() - indx - 2)
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if func_params != "":
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var params : PoolStringArray = func_params.split(",", false)
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for i in range(params.size()):
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var p : String = params[i]
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var default_value_indx : int = p.find("=")
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var default_value : String
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if default_value_indx != -1:
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default_value = p.substr(default_value_indx + 1).strip_edges()
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p = p.substr(0, default_value_indx).strip_edges()
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var type_indx : int = p.find(":")
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if type_indx != -1:
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var param_type : String = p.substr(type_indx + 1).strip_edges()
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p = p.substr(0, type_indx).strip_edges()
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func_final += p
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if i + 1 < params.size():
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func_final += ", "
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func_final += ")"
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return func_final
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func transform_method_to_cpp_binding(func_raw_data : String, name_prefix : String) -> String:
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var func_data : String = func_raw_data
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var func_ret_type : String = "void"
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var indx : int = func_raw_data.find(" -> ")
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if indx != -1:
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func_ret_type = func_raw_data.substr(indx + 4)
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func_data = func_raw_data.substr(0, indx)
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var ret_final : String = "ClassDB::bind_method(D_METHOD(\""
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indx = func_data.find("(")
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var func_name : String = func_data.substr(0, indx)
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ret_final += func_name + "\""
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var func_params : String = func_data.substr(indx + 1, func_data.length() - indx - 2)
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var default_values : PoolStringArray = PoolStringArray()
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if func_params != "":
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var params : PoolStringArray = func_params.split(",", false)
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for i in range(params.size()):
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ret_final += ", "
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var p : String = params[i]
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var default_value_indx : int = p.find("=")
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var default_value : String
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if default_value_indx != -1:
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default_value = p.substr(default_value_indx + 1).strip_edges()
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p = p.substr(0, default_value_indx).strip_edges()
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default_values.push_back(default_value)
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var type_indx : int = p.find(":")
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if type_indx != -1:
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var param_type : String = p.substr(type_indx + 1).strip_edges()
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p = p.substr(0, type_indx).strip_edges()
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ret_final += "\"" + p + "\""
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ret_final += "), &" + name_prefix + "::" + func_name
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for i in range(default_values.size()):
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ret_final += ", " + default_values[i]
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ret_final += ");"
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return ret_final
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func camel_case_scope_data() -> void:
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scope_data = camel_case_name(scope_data)
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func camel_case_name(cname : String) -> String:
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var ret : String = ""
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var next_upper : bool = true
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for i in range(cname.length()):
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if cname[i] == "_":
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next_upper = true
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continue
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if next_upper:
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ret += cname[i].to_upper()
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next_upper = false
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else:
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ret += cname[i]
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return ret
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func _to_string():
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return convert_to_string()
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func parse(contentsstr : String, file_name : String) -> void:
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raw_scope_data = file_name
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scope_data = file_name.get_file().trim_suffix(".gd")
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camel_case_scope_data()
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var contents : PoolStringArray = split_preprocess_content(contentsstr)
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for current_index in range(contents.size()):
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var cl : String = contents[current_index]
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if cl.begins_with("class_name "):
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raw_scope_data = cl
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scope_data = cl.trim_prefix("class_name ")
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continue
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if cl.begins_with("#"):
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continue
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var clstripped : String = cl.strip_edges(true, false)
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if clstripped.begins_with("static func "):
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static_methods.push_back(clstripped.trim_prefix("static func ").trim_suffix(":"))
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func split_preprocess_content(contents : String) -> PoolStringArray:
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var ret : PoolStringArray = PoolStringArray()
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contents = contents.replace("\r\n", "\n")
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var sp : PoolStringArray = contents.split("\n")
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var pl : String = ""
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var accum : bool = false
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for i in range(sp.size()):
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var l : String = sp[i]
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l = l.strip_edges(false, true)
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var lfstrip : String = l.strip_edges(true, false)
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if lfstrip == "":
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continue
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if lfstrip.begins_with("#"):
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ret.append(lfstrip)
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continue
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if lfstrip.begins_with("export"):
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var indx = lfstrip.find("var")
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var expstr : String = lfstrip.substr(0, indx)
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ret.append("#" + expstr)
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l = l.replace(expstr, "")
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var setget_indx = l.find(" setget ")
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if setget_indx != -1:
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var setget_str : String = l.substr(setget_indx)
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ret.append("#" + setget_str)
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l = l.substr(0, setget_indx).strip_edges(false, true)
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var hash_symbol_index = l.find("#")
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if hash_symbol_index != -1:
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var comment_str : String = l.substr(hash_symbol_index)
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ret.append(comment_str)
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l = l.substr(0, hash_symbol_index).strip_edges(false, true)
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if l.ends_with("\\"):
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if !accum:
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accum = true
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pl = l
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else:
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pl += l.substr(0, l.length() - 1).strip_edges()
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else:
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if accum:
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accum = false
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ret.append(pl)
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pl = ""
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else:
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ret.append(l)
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return ret
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func get_final_cpp_header_string(file_name : String) -> String:
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var include_guard_name : String = file_name.get_file()
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include_guard_name = include_guard_name.to_upper()
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include_guard_name = include_guard_name.trim_suffix(".GD")
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include_guard_name += "_BIND_H"
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var s : String = "#ifndef " + include_guard_name + "\n"
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s += "#define " + include_guard_name + "\n"
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s += "\n\n"
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s += get_cpp_header_string()
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s += "\n\n"
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s += "#endif"
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s += "\n"
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s = s.replace(";;", ";")
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return s
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func get_final_cpp_impl_string(file_name : String) -> String:
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var include_name : String = file_name.get_file()
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include_name = include_name.to_lower()
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include_name = include_name.trim_suffix(".gd")
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include_name += "_bind.h"
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var s : String = "\n"
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s += "#include \"" + include_name + "\"\n"
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s += "\n\n"
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s += get_cpp_impl_string()
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s += "\n\n"
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s = s.replace(";;", ";")
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return s
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func process_file(file_name : String) -> void:
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var file : File = File.new()
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file.open(file_name, File.READ)
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var contents : String = file.get_as_text()
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file.close()
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var parser : GDSStaticClassParser = GDSStaticClassParser.new()
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parser.parse(contents, file_name)
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#print(parser)
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#print(parser.get_cpp_header_string(file_name))
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#print(parser.get_cpp_impl_string(file_name))
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var save_base_file_path : String = file_name.get_base_dir()
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var save_base_file_name : String = file_name.get_file().to_lower().trim_suffix(".gd")
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var header_file : String = save_base_file_path + "/" + save_base_file_name + "_bind.h"
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var impl_file : String = save_base_file_path + "/" + save_base_file_name + "_bind.cpp"
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var header_data : String = parser.get_final_cpp_header_string(file_name)
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var impl_data : String = parser.get_final_cpp_impl_string(file_name)
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file.open(header_file, File.WRITE)
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file.store_string(header_data)
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file.close()
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file.open(impl_file, File.WRITE)
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file.store_string(impl_data)
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file.close()
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