Method get_func_arg_count_and_params

bytecode/bytecode_base.cpp:1450–1504

We're at the identifier token

// We're at the identifier token
int GDScriptDecomp::get_func_arg_count_and_params(int curr_pos, const Vector<uint32_t> &tokens, Vector<Vector<uint32_t>> &r_arguments) {
	if (curr_pos + 2 >= tokens.size()) {
		return -1;
	}
	GlobalToken t = get_global_token(tokens[curr_pos + 1]);
	if (t != G_TK_PARENTHESIS_OPEN) {
		return -1;
	}
	int bracket_open = 0;
	// we should be just past the open parenthesis
	int pos = curr_pos + 2;

	Vector<uint32_t> curr_arg;
	// count the commas
	// at least in 3.x and below, the only time commas are allowed in function args are other expressions
	// This test is not applicable to GDScript 2.0 versions, as there are no bytecode-specific built-in functions.
	for (; pos < tokens.size(); pos++) {
		t = get_global_token(tokens[pos]);
		switch (t) {
			case G_TK_BRACKET_OPEN:
			case G_TK_CURLY_BRACKET_OPEN:
			case G_TK_PARENTHESIS_OPEN:
				bracket_open++;
				break;
			case G_TK_BRACKET_CLOSE:
			case G_TK_CURLY_BRACKET_CLOSE:
			case G_TK_PARENTHESIS_CLOSE:
				bracket_open--;
				break;
			case G_TK_COMMA:
				if (bracket_open == 0) {
					r_arguments.push_back(curr_arg);
				}
				break;
			default:
				break;
		}
		if (bracket_open == -1) {
			if (curr_arg.size() > 0) {
				r_arguments.push_back(curr_arg);
			}
			break;
		}
		if (!is_whitespace_or_ignorable(t)) {
			curr_arg.push_back(tokens[pos]);
		}
	}
	// trailing commas are not allowed after the last argument
	if (pos == tokens.size() || t != G_TK_PARENTHESIS_CLOSE) {
		r_arguments.clear();
		error_message = "Did not find close parenthesis before EOF";
		return -1;
	}
	return r_arguments.size();
}
Ref<GodotVer> GDScriptDecomp::get_godot_ver() const {
	return GodotVer::parse(get_engine_version());
}