Build the generated wrapper code string and runtime defaults dict. Returns ------- A tuple of (code_str, runtime_defaults) where code_str is the generated wrapper function code and runtime_defaults maps arg names to their default values.
(
arg_names: list[str],
arg_defaults: tuple,
kwonly_names: list[str],
kwonly_defaults: dict[str, Any],
dc_to_tuple_set: set[str],
)
| 141 | |
| 142 | |
| 143 | def _build_wrapper_code( |
| 144 | arg_names: list[str], |
| 145 | arg_defaults: tuple, |
| 146 | kwonly_names: list[str], |
| 147 | kwonly_defaults: dict[str, Any], |
| 148 | dc_to_tuple_set: set[str], |
| 149 | ) -> tuple[str, dict[str, Any]]: |
| 150 | """Build the generated wrapper code string and runtime defaults dict. |
| 151 | |
| 152 | Returns |
| 153 | ------- |
| 154 | A tuple of (code_str, runtime_defaults) where code_str is the generated |
| 155 | wrapper function code and runtime_defaults maps arg names to their default values. |
| 156 | |
| 157 | """ |
| 158 | # Build positional defaults dictionary (right-aligned) |
| 159 | arg_defaults_dict = ( |
| 160 | dict(zip(arg_names[-len(arg_defaults) :], arg_defaults)) if arg_defaults else {} |
| 161 | ) |
| 162 | |
| 163 | arg_parts: list[str] = [] |
| 164 | call_parts: list[str] = [] |
| 165 | runtime_defaults: dict[str, Any] = {} |
| 166 | |
| 167 | def _transform_expr(name: str, expr: str) -> str: |
| 168 | if name in dc_to_tuple_set: |
| 169 | return f"{_INTERNAL_UNPACK}({expr})" |
| 170 | return expr |
| 171 | |
| 172 | def _add_param_with_default(name: str, default_value: Any) -> None: |
| 173 | # Directly embed None and bool defaults; use MISSING sentinel for others. |
| 174 | if default_value is None: |
| 175 | arg_parts.append(f"{name}=None") |
| 176 | call_parts.append(_transform_expr(name, name)) |
| 177 | elif type(default_value) is bool: |
| 178 | default_value_str = "True" if default_value else "False" |
| 179 | arg_parts.append(f"{name}={default_value_str}") |
| 180 | call_parts.append(_transform_expr(name, name)) |
| 181 | else: |
| 182 | arg_parts.append(f"{name}={_INTERNAL_MISSING}") |
| 183 | runtime_defaults[name] = default_value |
| 184 | base_expr = ( |
| 185 | f'{_INTERNAL_DEFAULTS_DICT}["{name}"] if {name} is {_INTERNAL_MISSING} else {name}' |
| 186 | ) |
| 187 | call_parts.append(_transform_expr(name, base_expr)) |
| 188 | |
| 189 | for name in arg_names: |
| 190 | if name in arg_defaults_dict: |
| 191 | _add_param_with_default(name, arg_defaults_dict[name]) |
| 192 | else: |
| 193 | arg_parts.append(name) |
| 194 | call_parts.append(_transform_expr(name, name)) |
| 195 | |
| 196 | if kwonly_names: |
| 197 | arg_parts.append("*") |
| 198 | for name in kwonly_names: |
| 199 | if name in kwonly_defaults: |
| 200 | _add_param_with_default(name, kwonly_defaults[name]) |
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